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94 changed files with 438 additions and 4459 deletions

6
.gitignore vendored
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@ -1,6 +0,0 @@
*.a
*.c~
*.h~
*.log
*.o
test/test_*

3
.ssh-agent Normal file
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@ -0,0 +1,3 @@
SSH_AUTH_SOCK=/tmp/ssh-QHib2992/agent.2992; export SSH_AUTH_SOCK;
SSH_AGENT_PID=2993; export SSH_AGENT_PID;
echo Agent pid 2993;

23
HEADER Normal file
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@ -0,0 +1,23 @@
#-------------------------------------------------------------------%
#
# LIBNAZGUL : Library
#
#-------------------------------------------------------------------%
#
# IUP GMI 2, Module de Système. 2003-2004.
# Cours de J-M. Rifflet.
#
#-------------------------------------------------------------------%
#
# Projet de :
# Glenn ROLLAND,
# Sebastian SCHAWOHL,
# Rivka ZANA
#
# pour plus de détails au sujet du projet, voir le
# fichier README
#
# pour la compilation et execution du projet, veuillez
# vous référer au fichier INSTALL
#
#-------------------------------------------------------------------%

17
INSTALL Normal file
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@ -0,0 +1,17 @@
1) Compilation du projet
Pour compiler le projet, taper
make
2) Execution
Pour l'executer
cd src
make run
ATTENTION: Il faut que java et javac soient installés sur votre
machine, et que toutes les librairies (SWING, AWT, etc..) dont
dépend le programme soient présentes.

607
LICENSE
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@ -1,25 +1,23 @@
GNU LIBRARY GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1991 Free Software Foundation, Inc.
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
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PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Libraries
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
If you develop a new library, and you want it to be of the greatest
possible use to the public, we recommend making it free software that
everyone can redistribute and change. You can do so by permitting
redistribution under these terms (or, alternatively, under the terms of the
ordinary General Public License).
END OF TERMS AND CONDITIONS
To apply these terms, attach the following notices to the library. It is
safest to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least the
"copyright" line and a pointer to where the full notice is found.
<one line to give the library's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
How to Apply These Terms to Your New Programs
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
This library is distributed in the hope that it will be useful,
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) 19yy <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) 19yy name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the library, if
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the
library `Frob' (a library for tweaking knobs) written by James Random Hacker.
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1990
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
That's all there is to it!
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General
Public License instead of this License.

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@ -1,30 +1,54 @@
### Make file du projet Janat
### HEADER HERE
###
PROJECT_NAME=libnazgul
TIMESTAMP:= $(shell date +"%Y-%m-%d_r%H%M")
ARCHIVE:= $(PROJECT_NAME)-$(TIMESTAMP).tar.bz2
PRJNAME=Libnazgul
GDATE:= $(shell date +"%Y-%m-%d_r%H%M")
GFILENAME:= $(PRJNAME)-$(GDATE).tar.bz2
PATH_GFILENAME:= ../$(GFILENAME)
GFILESIZE:=
LOCALDIR=$(shell pwd)
LASTONSERVER = $(shell ssh glenux.ath.cx -l warbrain "ls -rt ~/Projet/Archives/$(PRJNAME)* | tail -n 1")
#MAILS=warbrain@glenux.ath.cx
#MAILS=glenuxian@airpost.net rolland@dptmaths.ens-cachan.fr el_shogun@netcourrier.com rolandgl@ufr-info-p7.jussieu.fr
WGET=wget -P lib/
all: subdir
all: subdir
run:
( cd src/ ; \
$(MAKE) run )
subdir:
$(MAKE) -C src/
$(MAKE) -C test/
( cd src/ ; \
$(MAKE) )
doc:
$(MAKE) -C doc/rapport
( cd src/ ; \
$(MAKE) doc )
clean:
$(MAKE) clean -C src/
$(MAKE) clean -C test/
$(MAKE) clean -C doc/rapport/
@rm -f *.class *~
package: clean createpackage sendtoarchives
zip:
tar -cjvf ../$(ARCHIVE) -C ../ $(PROJECT_NAME)
#mail: clean createpackage sendpackage sendtoarchives
createpackage:
mv lib ../lib$(GDATE)
tar -cjvf $(PATH_GFILENAME) -C ../ $(PRJNAME)
mv ../lib$(GDATE) lib
sendtoarchives:
mv $(PATH_GFILENAME) ../Archives
#sendpackage:
# (echo -e "\nCi joint le fichier:\n$(shell du -sh $(PATH_GFILENAME))" \
# && echo -e "\nPour décompresser:" \
# && echo -e "\n\ttar -xjvf $(GFILENAME)\n" \
# && echo -e "\n(n'oubliez pas de supprimer l'ancien répertoire du même nom avant de décompresser)" \
# && echo -e "\n\nHistorique des modifications :\n" \
# && cat CHANGELOG ) \
# | mutt $(MAILS) -a $(PATH_GFILENAME) -s "[$(PRJNAME)] $(GDATE)"

5
NOTES Normal file
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@ -0,0 +1,5 @@
aller voir du coté des classes:
- GeneralPath
- QuadCurves2D
- ...

54
README
View file

@ -1,54 +1,8 @@
#-------------------------------------------------------------------%
#
# LIBNAZGUL
#
#-------------------------------------------------------------------%
#
# IUP GMI 2nd year,
# Project for the Operating Systems course,
# Classes by J-M. Rifflet, 2003-2004.
#
#-------------------------------------------------------------------%
#
# Authors :
#
# Glenn ROLLAND
# Sebastian SCHAWOHL
# Rivka ZANA
#
#-------------------------------------------------------------------%
Un readme qui explique le fonctionnement du projet
COMPILATION
~~~~~~~~~~~
Pour compiler le projet mettez-vous à la racine et faites 'make',
ce qui créera notre bibliothèque statique 'libnazgul.a' dans src/
ainsi que les programmes de test dans 'test/'.
INTERFACE
~~~~~~~~~
UTILISATION
~~~~~~~~~~~
Une fois le projet compilé (voir au-dessus), il vous suffit :
* Pendant l'écriture de vos programmes :
- de mettre "#include "libnazgul.h"" au début de votre programme .c,
* A la compilation
- spécifier (option -I) le répertoire où se trouvent les en-têtes (.h)
de la bibliothèque libnazgul
- indiquer (option -L) le chemin vers le fichier 'libnazgul.a'
- renseigner le compilateur (-l) sur les bibliotheques utilisées :
libnazgul, librt, et libpthreads.
Vous pourrez ainsi utiliser toutes les fonctions de notre bibliothèque.
DOCUMENTATION & RAPPORT
~~~~~~~~~~~~~~~~~~~~~~~
Pour voir la documentation allez dans le répertoire '/doc/'. S'y trouve
l'énoncé et un répertoire 'rapport' qui contient le rapport. Allez
dans celui-ci (donc /doc/rapport/) et faites 'make'. Ceci créera
le rapport sous plusieurs formats (dvi, postscript, pdf).
blabla

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@ -1,58 +0,0 @@
LATEX = latex
PDFLATEX = pdflatex
PSLATEX = pslatex
DVIPDF = dvipdf
DVIPS = dvips
PS2PDF = ps2pdf
GDATE := $(shell date +"-%Y-%m-%d_r%H")
GFILENAME := CDC$(GDATE).tar.bz2
LOCALDIR = $(shell pwd)
MAINFILE = rapport
#PNGFILES := $(shell ls *.png)
#EPSFILES := $(patsubst %.png,%.eps,$(PNGFILES))
#PNG2EPSCC = convert
TEXFILES := $(MAINFILE).tex
DVIFILES := $(MAINFILE).dvi
PDFFILES := $(MAINFILE).pdf
PSFILES := $(MAINFILE).ps
all: dvi dvi ps pdf pdf
#png2eps: $(EPSFILES)
#%.eps : %.png
# @$(PNG2EPSCC) $< $@
# @echo -e "png2eps\t$< $@"
clean:
@rm -f rapport.dvi rapport.rtf rapport.pdf rapport.ps
@rm -f *.out *.log *.toc *.aux
# @rm -f *.eps
@rm -f *~
pdf: $(TEXFILES)
$(PDFLATEX) $(TEXFILES)
ps: $(TEXFILES)
$(DVIPS) $(DVIFILES)
dvi: $(PRJFILES)
$(LATEX) $(TEXFILES)
#mail: package sendmail
#
#pdfmail :
# make && make
# echo "Et voila le dernier pdf" | mutt lsr-dev -a $(PDFFILES) -s "[CDC] Rev$(GDATE) (en PDF)"
#
#sendmail:
# echo "Et voila" | mutt lsr-dev -a ../Archives/$(GFILENAME) -s "[CDC] Rev$(GDATE) (en TeX)"
#
package: clean storefile
#storefile:
# tar -cjvf ../$(GFILENAME) -C ../ cdc
# mv ../$(GFILENAME) ../Archives

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@ -1,25 +0,0 @@
\section{Arborescence du projet}
\par L'archive du projet contient (au moins) les répertoires et fichiers suivants :
\begin{verbatim}
Libnazgul/
|-- README // Instructions pour la compilation du projet
|-- HEADER // Header du projet Libnazgul
|-- LICENSE // Licence qui couvre le projet
|-- Makefile // Règles de compilation
|-- doc/
| |-- ennonce // Enoncé du projet en format postscript
| `-- rapport/ // Rapport Latex
| |-- Makefile // Règles de compilation
| `-- ...
|
|--test
| |-- Makefile // Règles de compilation
| |-- create_delete // Le main de la fonction
| `-- *.c // Programmes de test
|
`-- src/ // Sources de la bibliothèque
|-- Makefile // Règles de compilation
|-- *.h // En-têtes pour l'utilisation de Libnazgul
`-- *.c // Sources de Libnazgul
\end{verbatim}

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@ -1,16 +0,0 @@
\chapter{Conclusion}
\par Nous avons fini le projet, mais il n'est certainement pas exempt
de bugs et d'autres défauts.
C'est pourquoi dans l'avenir, il faudrai corriger les bogues éventuels que
tous nos tests n'auraient pas fait appara{\^i}tre. Le ``code'' lui-même pourrait {\^e}tre grandement amélioré et allégé car des choses plus ``subtiles'' auraient pu être écrite à certains endroits (nécessitant malheureusement un peu plus de temps).
\par De même la gestion des codes d'erreurs renvoyés par les fonctions pourrait être améliorée et la facilité de débuggage augmentée.
\par Il serait également possible de faire en sorte d'utiliser moins de
mémoire en réduisant le nombre de segment de mémoire partagée, mais pour
cela il faudrai changer de structures de données.
\par De plus nous aimerions (d'ici la soutenance) rendre les outils de test et d'analyse des espaces de messages plus complet.
\par Enfin nous tenons à remercier M. Rifflet pour le cours (et son livre) ainsi que M. Bertier pour leurs nombreuses explications (si précieuses) qu'ils nous tout deux apportés.

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@ -1,17 +0,0 @@
\title{Rapport du projet de système: Libnazgul \\ \today}
\date{}
\author{\vspace{1cm} \\ {\sc Cours de système} \\
de Jean-Marie Rifflet et Marin Bertier. \\~\\
{\sc Université Paris 7 - Denis Diderot.}
\\ \vspace{3cm} \\
\begin{tabular}{ r l l }
& Glenn ROLLAND & {\em $<$glenux@fr.st$>$}, \\
& Sebastian SCHAWOHL & {\em $<$stormrider@nerim.fr$>$},\\
& Rivka ZANA & {\em $<$rivka\_zan@hotmail.com$>$}
\end{tabular}
}
%& Rivka ZANA & {\em $<$crivka@caramail.com$>$}
%\date{\today}
%\title{Janat}
%\author{Par Moi}
\maketitle

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@ -1,169 +0,0 @@
\chapter{Le développement}
\section{Outils utilisés pour le développement}
\subsection{Travail collaboratif}
\par Nous avons travaillé ensemble gr{\^a}ce à CVS (Concurrent Versions System). Notre projet est hébergé chez Sourceforge\footnote{\url{http://www.sourceforge.net}}.
Le CVS permet la modification du code du projet en m{\^e}me temps par plusieurs
personnes. Les modifications et les mises à jour de chacun des membres du projet peuvent
ainsi être diffusées instantanément, avec un risque minimisé de conflits lors des modifications du m{\^e}me code.
\subsection{Moyens techniques}
\par Chacun selon nos préférences, nous avons utilisés des machines sous GNU/Linux ou Microsoft Windows et codé avec Vim.
La personne sous Microsoft Windows avait une session graphique sur un serveur GNU/Linux, appartenant a un autre membre du projet,
gr{\^a}ce à l'utilisation de VNC\footnote{\url{http://www.realvnc.com}} (Virtual Network Computing).
Cela afin de permettre à l'utilisateur de Microsoft Windows de pouvoir compiler et tester
la bibliothèque dans de meilleurs conditions que sous son système initial\ldots
\section{Programmation}
\subsection{Description des fonctions et de leurs effets}
\par Nous allons dresser un descriptif de l'utilité des fonctions
utilisées dans notre bibliothèque. Vous trouverez tous les prototypes
des fonctions dans le fichier \\``\verb+/src/proto.h+'', avec en
commentaire le fichier d'où il est issu. Par contre pour les fonctions
qui génèrent les {\em ids}, leur prototype est dans le fichier ``\verb+/src/ids.h+'', généré par ``\verb+/src/ids.c+''.
\par Le fichier ``\verb+/src/proto.h+'' est connu des logiciels qui utilisent
notre bibliothèque, tandis que ``\verb+/src/ids.h+'' non.
Nous allons donc vous décrire nos différentes fonctions en les classant
par famille.
\newline
\par Nous avons quatre grandes {\em familles} de fonctions.
\begin{description}
\item[msgBuffer*]{Ce sont toutes les fonctions qui concernent les
buffers : création, attachement aux processus\ldots}
\item[msgPool*]{Ce sont les fonctions qui permettent de créer ou de
détruire une {\em pool}, de l'ouvrir ou encore de poser un ``verrou''.
\begin{description}
\item[msgPool*]{Fonctions servant à gérer une {\em pool}, qui
correspond à un ensemble de {\em buffers}.}
\item[msgPoolDataTab*]{Fonctions utiles pour la gestion des
informations d'une {\em pool} telles que la taille des {\em buffers},
leur nombre\dots}
\end{description}
}
\item[msgQueue*]{Toutes les fonctions gérant les ``queues'', {\em
files de messages}. On y trouve celle qui en créé une, celles i
qui vérifient si elle est disponible ou pas, celles qui ajoutent
un élément ou au contraire en enlève un.
\begin{description}
\item[msgQueue*]{ Rassemble toutes les fonctions servant à la gestion
des files de messages.}
\item[msgQueueElem*]{ Les fonctions utiles pour gérer un élément
d'une file de messages.}
\item[msgQueue(Prot|Read)*]{Fonctions servant à protéger une file
({\em read} indique la disponibilité d'une ressource en lecture,
{\em Prot} la protection contre les modification).}
\end{description}
}
\item[msgSpace*]{Ensemble de fonctions qui gèrent les espaces de
messages : création, ouverture, listes\ldots
\begin{description}
\item[msgSpace*]{Fonctions pour la création, ``ouverture'', ``fermeture''\dots d'un espace de messages.}
\item[msgSpaceList*]{Ce sont toutes les fonctions utiles pour la
gestion de la liste cha{\^i}née des {\em msgSpace} existants.}
\item[msgSpaceListElem*]{ Fonctions correspondant à la gestion d'un
élément de la {\em msgSpaceList}.}
\end{description}
}
\end{description}
\subsection{Détails sur certaines fonctions}
\par Nous détaillerons ici quelques fonctions qui peuvent ne pas
par{\^i}tre claires, malgré les explications au-dessus, ou qui n'ont
pas encore été abordées.
\par Voici la liste des fonctions non abordées dans la partie
précédente, mais néanmoins utiles pour la compréhension de notre
bibliotèque. Les fonctions pour la génération d'{\em ids} ne seront
pas traitées ici, car leur utilité est décrite dans la partie {\sc Difficultés recontrées}.
\begin{itemize}
\item{\sc msgAllocate(\dots)} Prend en argument : un espace de mesage\\
{\em msgSpace *}, un numéro de {\em pool} qui est un {\em int}, une
taille {\em int} et une option {\em int}. Cette fonction, comme
spécifié dans l'énoncé, alloue un buffer
dans le {\em pool} spécifié, ou sinon dans le {\em pool} le plus proche
en taille (supérieure ou égale) et qui sera ``potentiellement'' libre
le plus rapidement, sauf s'il l'est déjà. Pour cela, on regarde le
nombre de {\em locks}, qu'il y a dessus gr{\^a}ce aux sémaphores. On
choisit le buffer dont le {\em pool} a le moins de ``locks'' en fonction
du nombre de ses buffers.
\item{\sc msgFree(\dots)} Cette fonction prend en argument un espace de
message {\em msgSpace *} et l'adresse d'un buffer {\em void *}. Celle-ci
restitue le buffer au {\em pool} d'où il a été extrait.
\item{\sc msgGet(\dots)} Notre fonction {\em void * msgGet(\dots)}, est
telle qu'elle corresponde bien à l'énoncé. Elle prend en argument un
espace de messages {\em msgSpace *}, un numéro de file, ou {\em queue},
{\em int} et l'adresse d'un buffer {\em void *}. Elle renvoie l'adresse
du buffer en t{\^e}te de la file du numéro donné dans l'espace de
messages spécifiés. Lors d'un appel à cette fonction, celle-ci
``locke'' d'abord le sémaphore qu'il y a sur la {\em queue}. Si la file
est vide, cela bloque le {\em get}.\\
{\sc Remarque :} Nous n'avons pas implémenté le cas du \verb+ANYFILE+.
\item{\sc msgPut(\dots)} Cette fonction fait exactement ce qu'elle est
sensée faire tel que énoncé dans le rapport. Elle prend en argument un
espace de messages {\em msgSpace *}, un numéro de file, ou {\em queue}, {\em int} et
l'adresse d'un buffer {\em void *}. Elle insère le buffer dans le numéro
de file de messages de l'espace de messages. Lorsque l'on appelle cette
fonction, à la fin, on ``délocke'' le sémaphore sur la {\em queue}.
\end{itemize}
\newpage
\section{Difficultés rencontrées}
\subsection{Restrictions}
\par Nous n'avons pas eu de grosses difficultés à proprement parler.
Nous avions juste quelques restrictions, comme le fait de ne pas
pouvoir utiliser de pointeurs absolus, car l'espace d'adressage entre
les différents processus n'est pas forcément le m{\^e}me. Ils ont
seulement un segment de mémoire partagée en commun.
\par Il a donc fallu utiliser les différentes {\em id} (c'est à dire les identifiants POSIX) des espaces de messages {\em msgSpace}, des {\em pools}
et autres types de données stockées en mémoire partagée pour pouvoir permettre a tous les processus d'accéder correctement aux données.
\subsection{Libertés d'implémentations de POSIX\ldots}
\par Le choix des identifiants ne fut pas simple non plus, car il
fallait en changer en fonction des différentes implémentations de POSIX.
En effet la norme POSIX précise que l'identifiant doit commencer par un ``\verb+/+'' et si possible ne pas en comporter d'autres.
\par Si cela est vrai sur certains systèmes (comme GNU/Linux) d'autres
systemes (HP-UX, SunOS) requièrent que cet identifiant corresponde
au chemin absolu (dans l'arborescence UNIX) d'un fichier sur lequel
on possède des droits\ldots
\par Nous avons donc choisi les identifiants du type
``\verb+/tmp/identifiant+'', qui pour les systèmes avec la restrictions précédente et ``\verb+/identifiant+'' sur les autres. i
Cela nous a également conduit à faire une distinction dans le \verb+Makefile+
entre les options de compilation pour {\em HP-UX}, {\em SunOS} ou {\em Linux}.
\par Malheureusement le fait de travailler sur plusieurs types de
machines n'était pas seulement g{\^e}nant pour les identifiants,
mais également pour créer la bibliothèque. En effet, il faut ajouter
plus ou moins d'options à la compilation: soit il faut ajouter \verb+-lrt+, dans un cas ou \verb+-lrt -lpthread+ dans l'autre. Ceci afin
d'inclure les bonnes librairies pour que notre bibliothèque puisse
compiler et fonctionner convenablement.
\par La seconde difficulté liée à POSIX, est la projection de fichier
ou {\em mapping} avec {\em mmap}. Selon l'implémentation, l'offset (décalage par rapport au début de l'addresse mémoire du fichier) peut éventuellement {\^e}tre aligné sur la taille des pages mémoires\ldots
\par Ceci est assez génant lorsque l'on veut accéder à bloc de donnée
qui peut commencer n'importe où dans la zone de mémoire partagée.
Pour remédier à cela, nous {\em mappons} du début de la zone mémoire partagée jusqu'à ``juste derrière'' le bloc de donnée qui nous intéresse.
\par Puis nous changeons les droits d'acces (\verb+mprotect+) pour nous autoriser la modifiction uniquement sur le bloc de données qui nous intéresse.
\par Enfin nous opérons le décalage d'addresse ``à la main'' et renvoyons l'addresse qui correspond au début du bloc de données demandé.

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@ -1,44 +0,0 @@
\chapter{À propos du projet}
\section{Conditions d'utilisation}
\par Ce programme est un logiciel libre; vous pouvez le redistribuer et/ou
le modifier conformément aux dispositions de la Licence Publique Générale GNU,
telle que publiée par la Free Software Foundation; version 2 de la licence, ou encore toute version ultérieure.
\par Ce programme est distribué dans l'espoir qu'il sera utile, mais {\em sans aucune garantie}; sans même la garantie implicite de {\em commercialisation} ou {\em d'adaptation à un objet particulier}. Pour plus de détails, voir la Licence Publique Générale GNU.
\par Un exemplaire de la Licence Publique Générale GNU doit être fourni avec ce programme; si ce n'est pas le cas, écrivez à la Free Software Foundation Inc., 675 Mass Ave, Cambridge, MA 02139, Etats-Unis.
\section{Les auteurs}
\par Le projet est réalisé par Glenn ROLLAND, Sebastian SCHAWOHL et Rivka ZANA, élèves en 2ème année d'IUP GMI à l'Université Paris 7 - Denis Diderot.
\section{Les objectifs}
\par L'objectif de ce projet est de réaliser une bibliothèque permettant
à plusieurs processus d'un m{\^e}me sytème de communiquer entre eux via des files de messages, sans faire la recopie de ces messages dans l'espace
d'adressage du noyau.
\par Nous devions donc mettre en oeuvre les techniques de la programmation
système ainsi que la création d'une bibliothèque de fonctions.
Pour ce faire, nous avons utilisés les mécanismes de mémoire partagée et de synchronisation à la norme POSIX.
\section{Obtenir l'archive du projet}
\par L'archive du projet est sensée accompagner ce rapport. Elle se présente
sous la forme d'un fichier tarball. Pour la décompresser il suffit de taper
``\verb+tar -xzvf Libnazgul-XXXX-XX-XX-rYYYY.tar.gz+''.
\par Si toutefois cette archive n'est pas présente aux c{\^o}tés de ce document,
vous pouvez récupérer les sources du projet via CVS anonyme en tapant dans un terminal:\\
``\verb+cvs -d:pserver:anonymous@cvs.sourceforge.net:/cvsroot/libnazgul login+''\\
(appuyez sur la touche entrée à l'invite du mot de passe),
puis :\\
``\verb+cvs -z3 -d:pserver:anonymous@cvs.sourceforge.net:/cvsroot/libnazgul co libnazgul+''
\section{Site internet du projet}
\par Le projet Libnazgul est hebergé par
Sourceforge\footnote{\url{http://www.sourceforge.net}},
et son adresse est :
\newline
{\url{http://www.sourceforge.net/projects/libnazgul/}}.
\par Ce site vous permettra de télécharger le projet, d'en avoir
une description et éventuellement d'y contribuer.
\newpage

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@ -1,30 +0,0 @@
\chapter{Manuel d'utilisation}
\section{Que faire de nos sources?}
%\subsection{Les compiler}
\par Pour pouvoir utiliser notre bibliotèque, il faut commencer par la
compiler. Pour cela placez-vous dans le répertoire racine de l'archive (noté ici
\verb+/+) ou dans son sous-répertoire \verb+src/+
et tapez ``\verb+make+''. Cela compilera la bibliothèque
(fichier \verb+libnazgul.a+) ainsi que les divers programmes de test dans
l'archive.
\section{Comment utiliser Libnazgul ?}
\par Une fois le projet compilé (voir ci-dessus), vous il vous est possible
d'utiliser {\sc Libnazgul}.
Il vous faudra pendant l'écriture de vos programmes C/C++,
mettre \verb+#include libnazgul.h+ au début des fichiers utilisant la bibliothèque.
\par De même il faudra prendre bien soin, à la compilation de vos programme de :
\begin{itemize}
\item{spécifier (option \verb+-I+) le répertoire où se trouvent les
en-têtes (fichiers *.h) de la bibliothèque {\sc Libnazgul},}
\item{indiquer (option \verb+-L+) le chemin vers le fichier \verb+libnazgul.a+,}
\item{renseigner le compilateur (option \verb+-l+) sur les bibliotheques nécessaires pour utiliser les fonctions de {\sc Libnazgul} : nazgul, rt, et pthreads.}
\end{itemize}
\par Vous pourrez ainsi sans problèmes appeler toutes les fonctions fournis
par {\sc Libnazgul} : {\it msgSpaceCreate(\ldots), msgPut(\ldots), msgFree(\ldots),
etc\dots}

View file

@ -1,109 +0,0 @@
\documentclass[12pt,a4paper]{report}
%\usepackage{a4wide}
\usepackage{geometry}
%\usepackage{typehtml}
\usepackage[latin1]{inputenc}
%\usepackage{listings}
\usepackage[french]{babel}
\usepackage{fancyheadings}
\usepackage{color}
\usepackage{float}
\usepackage[cyr]{aeguill} % Police vectorielle TrueType, guillemets français
%\DeclareGraphicsExtensions{.jpg,.mps,.pdf,.png} % Formats d'images
%--------------------------------------------------------------
\pagestyle{fancy}
\rhead[{\small\sc{LIBnazgul is Not Another Zero-share Great or Ultimate Library}}]{{\small \sc{LIBnazgul is Not Another Zero-share Great or Ultimate Library}}}
\lhead[\it{}]{\it{}}
%\rhead[\it{Projet de Système.}]{\it{Projet de Système.}}
%---------------------------------------------------------------
\newif\ifpdf
\ifx\pdfoutput\undefined
\pdffalse
\else
\pdfoutput=1
\pdftrue
\fi
\ifpdf
% ! The next three lines should be one !
\usepackage[pdftex,colorlinks=true,urlcolor=blue,pdfstartview=FitH]{hyperref}
\pdfcompresslevel=9
\hypersetup{
pdftitle={RAPPORT DU PROJET DE SYSTEME},
pdfauthor={ROLLAND Glenn, SCHAWOHL Sebastian, ZANA Rivka},
pdfsubject={LIBNAZGUL},
pdfkeywords={PROJET}
pdfcreator={GleNuX}
}
\usepackage[pdftex]{thumbpdf} % Vignettes
%\usepackage[pdftex, %
% bookmarks = true,% % Signets
% bookmarksnumbered = true,% % Signets numérotés
% pdfpagemode = None,% % Signets/vignettes fermé à l'ouverture
% pdfstartview = FitH,% % La page prend toute la largeur
% pdfpagelayout = SinglePage,% Vue par page
% colorlinks = true,% % Liens en couleur
% urlcolor = magenta,% % Couleur des liens externes
% pdfborder = {0 0 0}% % Style de bordure : ici, pas de bordure
% ]{hyperref} % Utilisation de HyperTeX
\usepackage[pdftex]{graphicx}
% \usepackage[pdftex]{thumbpdf}
\else
\usepackage[dvips]{epsfig}
\usepackage{hyperref}
\usepackage[T1]{fontenc}
\fi
%---------------------------------------------------------------
\begin{document}
%---------------------------------------------------------------
\newcommand{\texima}[3]{
\begin{figure}[H]
\begin{center}
\ifpdf
% Dans le cas du PDF
% utiliser une image .png, .jpeg ou .jpg
\includegraphics[width=#2,height=#3]{#1.png}
\else
% et dans le cas du DVI / PS
% utiliser du .ps ou du .eps
\epsfig{figure=#1.eps,width=#2,height=#3}
\fi
\end{center}
\end{figure}
}
\newcommand{\texillustr}[3]{
\ifpdf
% Dans le cas du PDF
% utiliser une image .png, .jpeg ou .jpg
\includegraphics[width=#2,height=#3]{#1.png}
\else
% et dans le cas du DVI / PS
% utiliser du .ps ou du .eps
\epsfig{figure=#1.eps,width=#2,height=#3}
\fi
}
\input{couv.tex} % Page de garde
\tableofcontents % Sommaire
\clearpage
\input{intro.tex} % Intro, compilation, exécution
\input{arbo.tex} % arborescence du projet
\input{manuel.tex} % Manuel de l'utilisateur
\input{devel.tex} % outils, ce qu'on a pu trouver dur
\input{avenir.tex}
%\input{conclusion.tex} % est-ce vraiment utile ?
\end{document}

8
libnzg-ssh Executable file
View file

@ -0,0 +1,8 @@
#!/bin/sh
if [ -f .ssh-agent ]; then
. .ssh-agent
else
killall ssh-agent
ssh-agent > .ssh-agent
ssh-add ~/.ssh/id_rsa
fi

9
libnzg-tuxfamily Executable file
View file

@ -0,0 +1,9 @@
#!/bin/bash
export CVS_RSH=ssh
export CVSROOT=:ext:login@cvs.tuxfamily.org:/cvsroot/libnazgul
# ci commit
# co new branch
# update
exec $SHELL

View file

@ -1,29 +1,16 @@
#-------------------------------------------------------------------%
#
# LIBNAZGUL : Library
#
#-------------------------------------------------------------------%
#
# IUP GMI 2, Module de Système. 2003-2004.
# Cours de J-M. Rifflet.
#
#-------------------------------------------------------------------%
#
# Projet de :
# Glenn ROLLAND,
# Sebastian SCHAWOHL,
# Rivka ZANA
#
# pour plus de détails au sujet du projet, voir le
# fichier README
#
#-------------------------------------------------------------------%
### HEADER HERE
OS=$(shell uname -s)
# @CLASSPATH=$(CLASSPATH) $(JAVAC) $(JFLAGS) $<
#INCLUDES=-I/
#LIBINC=-L
#LIBS=
CC=gcc
CFLAGS=-ggdb -Wall -O2
#LIBS=-lrt
CFLAGS=-ggdb -O2 -Wall
USER_CLASSPATH:=../bin:../lib
JFLAGS=-d ../bin -g -deprecation
#-verbose
PRJNAME=Libnazgul
GDATE := $(shell date +"-%Y-%m-%d_r%H")
GFILENAME := ../$(PRJNAME)$(GDATE).tar.bz2
@ -31,49 +18,15 @@ LOCALDIR = $(shell pwd)
BINDIR=../bin
CFILES := $(shell ls *.c)
OFILES := $(patsubst %.c,%.o,$(CFILES))
DESTFILE=libnazgul.a
INCLUDES=-I /usr/lib/ -I /usr/local/lib/
DEFINES:=
ifeq "SunOS" "${OS}"
DEFINES:=-D_NZG_REALFILEID -D_NZG_SUNOS
endif
ifeq "HP-UX" "${OS}"
DEFINES:=-D_NZG_REALFILEID
endif
ifeq "Linux" "${OS}"
#DEFINES:=-D_NZG_REALFILEID
endif
all: build
build : $(OFILES)
@echo -e "Creating library..."
@ar rc $(DESTFILE) $(OFILES)
@ranlib $(DESTFILE)
clean:
@echo -e "Cleaning..."
@rm -f *.a
@rm -f *.o
%.o : %.c
@echo -e "$(CC)\t$@"
@$(CC) $(CFLAGS) -c $< $(INCLUDES) $(LIBINC) $(LIBS) $(DEFINES) -o $*.o
$(CC) $(CFLAGS) $(INCLUDES) $(LIBINC) $(LIBS) -c $< -o $*.o
protos: $(CFILES)
@rm -f proto.h
@touch proto.h
@( echo -e "#ifndef _NZG_PROTO"; \
echo -e "#define _NZG_PROTO 1\n"; \
cproto *.c ; \
echo -e "\n#endif") > proto.t
@mv proto.t proto.h
edit:
gvim *.c *.h

View file

@ -1,225 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
/* TODO: remplacer le bool de msgPoolData par un identifiant
de semaphore. Le semaphore contient poolNb valeurs (et indique
donc le nombre de ressources disponnibles).
*/
/* TODO: prevoir le cas des négatifs dans la taille ... */
void *msgAllocate(msgSpace * space, int pool, int taille, int option)
{
void *resultAddr = NULL;
int bufferFreeSize;
int i;
msgPoolId resultPoolId;
/* tableau des valeurs des semPoolCoef/pool pour identifier le pool
* qui sera libéré le plus rapidement */
float semPoolCoef[space->poolNb];
int idxPoolOptimum;
bool gotRessourceSem;
msgPoolDataTabSemId ressourceSemId;
sem_t *ressourceSemFd;
int ressourceSemVal;
int nbLockedSem;
float minPoolCoef;
int selectedPoolIndex;
int bufferFreeIndex;
msgPoolData *mSPoolDataTabAddr;
selectedPoolIndex = -1;
mSPoolDataTabAddr = msgPoolDataTabOpen(space);
if (mSPoolDataTabAddr == NULL) {
NZG_ERROR("msgPoolDataTabOpen", space->poolDataTabId);
goto ERROR;
}
/*
// verifier le premier arg du shm_open
mSPoolDataTabFd=shm_open(space->poolDataTabId,
O_RDWR,
MSGSPACE_DEFAULT_MODE);
if (mSPoolDataTabFd == -1 ) {
fprintf( stderr, "Allocate %s failed: %s\n",
(char*)space->poolDataTabId,
strerror( errno ) );
return NULL;
}
mSPoolDataTabAddr = mmap( 0, (space->poolNb) * sizeof( msgPoolData ),
PROT_READ | PROT_WRITE,
MAP_SHARED, mSPoolDataTabFd, 0 );
if( mSPoolDataTabAddr == MAP_FAILED) {
fprintf( stderr, "mmap failed: %s\n",
strerror( errno ) );
return NULL;
}
*/
gotRessourceSem = false;
/* initialisation des coefs */
for (i = 0; i < (space->poolNb); i++) {
semPoolCoef[i] = -1;
}
nbLockedSem = 0;
if (pool == ANYPOOL) {
fprintf(stderr, "[ ALLOCATION ANYPOOL : %d ]\n", (int)getpid());
// choisir le pool au hasard (ou presque)
for (i = 0; i < (space->poolNb); i++) {
printf("- boucle %d\n", i);
fflush(stdout);
if (mSPoolDataTabAddr[i].bufferSize >= taille) {
printf("( buffSize > taille )\n");
fflush(stdout);
/* choisir le numero du semaphore
en fonction du nombre de lock poses / nombre de buffer */
msgPoolSemIdIntern(ressourceSemId, space->id,
i);
ressourceSemFd =
sem_open(ressourceSemId, O_CREAT,
SEM_DEFAULT_MODE, 0);
if (ressourceSemFd == SEM_FAILED) {
NZG_ERROR("sem_open", ressourceSemId);
return NULL;
}
/* on remplit le tableau avec les valeurs des semaphores */
if (sem_getvalue
(ressourceSemFd, &ressourceSemVal) < 0) {
NZG_ERROR("sem_getvalue",
ressourceSemId);
return NULL;
}
printf("RESSOURCESEMVAL %d\n", ressourceSemVal);
if (ressourceSemVal <= 0) {
printf("resVal < 0 : %d\n",
ressourceSemVal);
/* il y a ressourceSemVal processus qui attendent déja... */
semPoolCoef[nbLockedSem] =
(float)((1 -
ressourceSemVal) /
mSPoolDataTabAddr[i].
bufferNb);
nbLockedSem++;
}
if (sem_trywait(ressourceSemFd) == 0) {
printf("got try_wait\n");
/* choisir la 1ere pool de taille plus grande
* libre si possible */
gotRessourceSem = true;
selectedPoolIndex = i;
break;
}
if (sem_close(ressourceSemFd) < 0) {
NZG_ERROR("sem_getvalue",
ressourceSemId);
return NULL;
}
} // if buffSize > taille
} // for
printf("ERRORDETECT outFor\n");
fflush(stdout);
if (!gotRessourceSem) {
printf("Calcul du meilleur en cas de liberation\n");
minPoolCoef = semPoolCoef[0];
idxPoolOptimum = 0;
/* on cherche le pool avec le moins de lock poses / nbre de buffer
* le numéro du pool est stocké dans idxPoolOptimum */
for (i = 0; i < nbLockedSem; i++) {
printf("Coef %d : %d\n", i,
(int)semPoolCoef[i]);
if ((semPoolCoef[i] != -1)
&& (semPoolCoef[i] < minPoolCoef)) {
minPoolCoef = semPoolCoef[i];
idxPoolOptimum = i;
}
}
if (minPoolCoef == -1) {
/* il n'y a aucune pool dont la taille satisfait la demande */
return NULL;
} else {
selectedPoolIndex = idxPoolOptimum;
}
printf("Optimum : %d\n", selectedPoolIndex);
}
} else {
fprintf(stderr, "[ ALLOCATION : %d ]\n", (int)getpid());
selectedPoolIndex = pool;
}
if (!gotRessourceSem) {
msgPoolSemIdIntern(ressourceSemId, space->externId,
selectedPoolIndex);
ressourceSemFd =
sem_open(ressourceSemId, O_CREAT, SEM_DEFAULT_MODE, 0);
if (ressourceSemFd == SEM_FAILED) {
NZG_ERROR("sem_open", ressourceSemId);
return NULL;
}
//TODO:virer la ligne suivante:
sem_getvalue(ressourceSemFd, &ressourceSemVal);
printf("SemWait... %s : %d\n", ressourceSemId, ressourceSemVal);
if (sem_wait(ressourceSemFd) < 0) {
NZG_ERROR("sem_wait", ressourceSemId);
sem_close(ressourceSemFd);
return NULL;
}
printf("Passed %s\n", ressourceSemId);
}
/* on a acqui un semaphore pour la ressouce */
/* on acquiert le droit de modifier les infos sur la ressource */
/* on protege le tableau des associations */
msgPoolDataTabLock(space);
/* on modifie maintenant les données */
/* - on récupere l'index du premier buffer libre */
bufferFreeIndex =
msgBufferGetFreeIndex(mSPoolDataTabAddr, selectedPoolIndex);
if (bufferFreeIndex < 0) {
// aucun buffer libre ?
NZG_ERROR("msgBufferGetFreeIndex", "");
goto ERROR;
}
printf("Buffer selected : %d,%d\n", selectedPoolIndex, bufferFreeIndex);
/* mapper le buffer libre dans l'esp addr du proc */
strcpy(resultPoolId, mSPoolDataTabAddr[selectedPoolIndex].poolId);
bufferFreeSize = mSPoolDataTabAddr[selectedPoolIndex].bufferSize;
printf("BufferSize : %d\n", bufferFreeSize);
resultAddr =
msgBufferMap(mSPoolDataTabAddr, selectedPoolIndex, bufferFreeIndex);
if (resultAddr == NULL) {
NZG_ERROR("msgBufferMap",
mSPoolDataTabAddr[selectedPoolIndex].poolId);
goto ERROR;
}
/* - on s'enregistre aupres de ce buffer */
msgBufferAttachProc(mSPoolDataTabAddr,
selectedPoolIndex, bufferFreeIndex, resultAddr);
// munmap(mSPoolDataTabAddr,(space->poolNb) * sizeof( msgPoolData ));
/* unmapper le msgPoolDataTab */
msgPoolDataTabClose(space, mSPoolDataTabAddr);
msgPoolDataTabUnlock(space);
printf("alloc de %p\n", (void *)resultAddr);
return resultAddr;
ERROR:
NZG_ERROR("msgAllocate", "error processing");
msgPoolDataTabUnlock(space);
munmap(mSPoolDataTabAddr, (space->poolNb) * sizeof(msgPoolData));
return NULL;
}

View file

@ -1,11 +0,0 @@
#include "libnazgul.h"
int msgBufferGetAttachedProcIndex(msgPoolData * poolDataTabAddr,
int poolIndex, void *addr)
{
//TODO: parcourrir tous les index, et regarder s'il y
//a une addresse qui correspond avec le meme processus...
//et renvoyer l'index du buffer correspondant a l'addresse...
return 0;
}

View file

@ -1,36 +0,0 @@
#include "libnazgul.h"
int msgBufferAttachProc(msgPoolData * poolDataTabAddr,
int poolIndex, int bufferIndex, void *addr)
{
msgBufferInfoTabId bufferInfoTabId;
int bufferInfoTabFd;
msgBufferInfo *bufferInfoTabAddr;
int bufferInfoNb;
//récuperer l'ID du BufferInfoTab;
strcpy(bufferInfoTabId, poolDataTabAddr[poolIndex].bufferInfoTabId);
bufferInfoTabFd = shm_open(bufferInfoTabId, O_RDWR, SHM_DEFAULT_MODE);
if (bufferInfoTabFd < 0) {
NZG_ERROR("sem_open", bufferInfoTabId);
return -1;
}
/** on regarde dans le tableau d'infos de buffer **/
bufferInfoNb = poolDataTabAddr[poolIndex].bufferNb;
bufferInfoTabAddr = mmap(NULL, bufferInfoNb * sizeof(msgBufferInfo),
PROT_READ | PROT_WRITE, MAP_SHARED,
bufferInfoTabFd, (off_t) 0);
printf("atta gooo %s\n", bufferInfoTabId);
bufferInfoTabAddr[bufferIndex].ownerPid = getpid();
bufferInfoTabAddr[bufferIndex].addr = addr;
if (munmap(bufferInfoTabAddr, bufferInfoNb * sizeof(msgBufferInfo)) < 0) {
NZG_ERROR("munmap", bufferInfoTabId);
return -1;
}
return 0;
}

View file

@ -1,37 +0,0 @@
#include "libnazgul.h"
int msgBufferDetachProc(msgPoolData * poolDataTabAddr,
int poolIndex, int bufferIndex, void *addr)
{
msgBufferInfoTabId bufferInfoTabId;
int bufferInfoTabFd;
msgBufferInfo *bufferInfoTabAddr;
int bufferInfoNb;
printf("Detaching %d,%d\n", poolIndex, bufferIndex);
//récuperer l'ID du BufferInfoTab;
strcpy(bufferInfoTabId, poolDataTabAddr[poolIndex].bufferInfoTabId);
bufferInfoTabFd = shm_open(bufferInfoTabId, O_RDWR, SHM_DEFAULT_MODE);
if (bufferInfoTabFd < 0) {
NZG_ERROR("shm_open", bufferInfoTabId);
return -1;
}
/** on regarde dans le tableau d'infos de buffer **/
bufferInfoNb = poolDataTabAddr[poolIndex].bufferNb;
bufferInfoTabAddr = mmap(NULL, bufferInfoNb * sizeof(msgBufferInfo),
PROT_READ | PROT_WRITE, MAP_SHARED,
bufferInfoTabFd, (off_t) 0);
bufferInfoTabAddr[bufferIndex].ownerPid = (pid_t) - 1;
bufferInfoTabAddr[bufferIndex].addr = NULL;
if (munmap(bufferInfoTabAddr, bufferInfoNb * sizeof(msgBufferInfo)) < 0) {
NZG_ERROR("munmap", bufferInfoTabId);
return -1;
}
return 0;
}

View file

@ -1,43 +0,0 @@
#include "libnazgul.h"
int msgBufferGetFreeIndex(msgPoolData * poolDataTabAddr, int poolIndex)
{
msgBufferInfoTabId bufferInfoTabId;
int bufferInfoTabFd;
msgBufferInfo *bufferInfoTabAddr;
int bufferInfoNb;
int bufferFreeIndex;
int i;
//récuperer l'ID du BufferInfoTab;
strcpy(bufferInfoTabId, poolDataTabAddr[poolIndex].bufferInfoTabId);
bufferInfoTabFd = shm_open(bufferInfoTabId, O_RDWR, SHM_DEFAULT_MODE);
if (bufferInfoTabFd < 0) {
NZG_ERROR("shm_open", bufferInfoTabId);
return -1;
}
/** on regarde dans le tableau d'infos de buffer **/
bufferInfoNb = poolDataTabAddr[poolIndex].bufferNb;
bufferInfoTabAddr = mmap(NULL, bufferInfoNb * sizeof(msgBufferInfo),
PROT_READ, MAP_SHARED, bufferInfoTabFd,
(off_t) 0);
i = 0;
while ((i < bufferInfoNb)
&& (bufferInfoTabAddr[i].ownerPid != (pid_t) - 1)) {
i++;
}
if (i == bufferInfoNb) {
return -1;
}
bufferFreeIndex = i;
if (munmap(bufferInfoTabAddr, bufferInfoNb * sizeof(msgBufferInfo)) < 0) {
NZG_ERROR("munmap", bufferInfoTabId);
return -1;
}
return bufferFreeIndex;
}

View file

@ -1,61 +0,0 @@
#include "libnazgul.h"
int msgBufferGetProcAttach(msgPoolData * poolDataTabAddr,
int poolNb,
int *poolIndex, int *bufferIndex, void *addr)
{
msgBufferInfoTabId bufferInfoTabId;
int bufferInfoTabFd;
msgBufferInfo *bufferInfoTabAddr;
int bufferInfoNb;
bool found = false;
int pIdx = 0;
int bIdx;
while ((!found) && (pIdx < poolNb)) {
/* Pour chaque pool */
//récuperer l'ID du BufferInfoTab;
strcpy(bufferInfoTabId, poolDataTabAddr[pIdx].bufferInfoTabId);
bufferInfoNb = poolDataTabAddr[pIdx].bufferNb;
bufferInfoTabFd =
shm_open(bufferInfoTabId, O_RDWR, SHM_DEFAULT_MODE);
if (bufferInfoTabFd < 0) {
NZG_ERROR("shm_open", bufferInfoTabId);
return -1;
}
/** on regarde dans le tableau d'infos de buffer **/
bufferInfoTabAddr =
mmap(NULL, bufferInfoNb * sizeof(msgBufferInfo), PROT_READ,
MAP_SHARED, bufferInfoTabFd, (off_t) 0);
/* on cherche dans chacun des buffers */
bIdx = 0;
while ((!found) && bIdx < bufferInfoNb) {
if (bufferInfoTabAddr[bIdx].addr == addr) {
found = true;
(*bufferIndex) = bIdx;
};
bIdx++;
}
if (found) {
(*poolIndex) = pIdx;
}
/* on détache le morceau de mémoire */
if (munmap
(bufferInfoTabAddr,
bufferInfoNb * sizeof(msgBufferInfo)) < 0) {
NZG_ERROR("munmap", bufferInfoTabId);
return -1;
}
close(bufferInfoTabFd);
pIdx++;
}
if (found) {
return 0;
} else {
return -1;
}
}

View file

@ -1,39 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
int msgBufferInfoTabCreate(msgSpaceId externId,
msgPoolData * poolDataTabAddr,
int poolIdx, int bufferNb)
{
int bufferInfoTabFd;
msgBufferInfoTabId bufferInfoTabId;
/* creation des infos sur buffers DEBUT */
if (msgBufferInfoTabIdIntern(bufferInfoTabId, externId, poolIdx) == -1) {
NZG_ERROR("msgPoolId creation", bufferInfoTabId);
return -1;
}
bufferInfoTabFd =
shm_open(bufferInfoTabId, O_RDWR | O_CREAT | O_EXCL | O_TRUNC,
MSGSPACE_DEFAULT_MODE);
if (bufferInfoTabFd == -1) {
fprintf(stderr, "msgInfoTab : %s creation failed: %s\n",
bufferInfoTabId, strerror(errno));
return -1;
}
if (ftruncate(bufferInfoTabFd, bufferNb * sizeof(msgBufferInfo)) == -1) {
fprintf(stderr, "msgBufferInfoTab resizing failed: %s\n",
strerror(errno));
return -1;
}
close(bufferInfoTabFd);
/* creation des infos sur buffers FIN */
msgBufferInfoTabInit(poolDataTabAddr, poolIdx);
return -1;
NZG_ERROR("munmap", bufferInfoTabId);
return -1;
}

View file

@ -1,38 +0,0 @@
#include "libnazgul.h"
int msgBufferInfoTabInit(msgPoolData * poolDataTabAddr, int poolIndex)
{
msgBufferInfoTabId bufferInfoTabId;
int bufferInfoTabFd;
msgBufferInfo *bufferInfoTabAddr;
int bufferInfoNb;
int i;
//récuperer l'ID du BufferInfoTab;
strcpy(bufferInfoTabId, poolDataTabAddr[poolIndex].bufferInfoTabId);
printf("msgBufferInfoTabId %d open >>%s<<\n", poolIndex,
bufferInfoTabId);
bufferInfoTabFd = shm_open(bufferInfoTabId, O_RDWR, SHM_DEFAULT_MODE);
if (bufferInfoTabFd < 0) {
NZG_ERROR("msgBufferInfoTabId open", bufferInfoTabId);
return -1;
}
/** on regarde dans le tableau d'infos de buffer **/
bufferInfoNb = poolDataTabAddr[poolIndex].bufferNb;
bufferInfoTabAddr = mmap(NULL, bufferInfoNb * sizeof(msgBufferInfo),
PROT_WRITE | PROT_READ, MAP_SHARED,
bufferInfoTabFd, (off_t) 0);
for (i = 0; i < bufferInfoNb; i++) {
bufferInfoTabAddr[i].ownerPid = (pid_t) - 1;
}
if (munmap(bufferInfoTabAddr, bufferInfoNb * sizeof(msgBufferInfo)) < 0) {
perror("munmap");
return -1;
}
return 0;
}

View file

@ -1,50 +0,0 @@
#include "libnazgul.h"
void *msgBufferMap(msgPoolData * poolDataTab, int poolIndex, int bufferIndex)
{
void *resultAddr;
int bufferSize, bufferNb;
int poolBufferTabFd;
msgPoolId poolBufferTabId;
printf("Mapping buffer (%d,%d)\n", poolIndex, bufferIndex);
// TODO: récuperer l'ID du BufferInfoTab;
strcpy(poolBufferTabId, poolDataTab[poolIndex].poolId);
bufferSize = poolDataTab[poolIndex].bufferSize;
bufferNb = poolDataTab[poolIndex].bufferNb;
if (bufferNb < 0) {
// do something with bufferNb
}
poolBufferTabFd = shm_open(poolBufferTabId, O_RDWR, SHM_DEFAULT_MODE);
if (poolBufferTabFd < 0) {
NZG_ERROR("shm_open", poolBufferTabId);
goto ERROR;
}
// mapper le buffer dans l'espace mémoire du processus
/* on s'arrete juste derriere l'index qui nous intéresse */
resultAddr = mmap(NULL, bufferSize * (bufferIndex + 1), PROT_READ | PROT_WRITE, //PROT_NONE
MAP_SHARED, poolBufferTabFd, (off_t) 0);
if (resultAddr == MAP_FAILED) {
NZG_ERROR("mmap", poolBufferTabId);
goto ERROR;
}
printf("Mapped from %p to %p\n",
(void *)resultAddr,
(void *)(resultAddr + bufferSize * (bufferIndex + 1))
);
resultAddr = resultAddr + (bufferSize * bufferIndex);
printf("Moved to %p\n", (void *)resultAddr);
/* mprotect(
resultAddr,
bufferSize,
PROT_READ|PROT_WRITE
); */
close(poolBufferTabFd);
return resultAddr;
ERROR:
return NULL;
}

View file

@ -1,63 +0,0 @@
#include "libnazgul.h"
int msgFree(msgSpace * space, void *addr)
{
int poolIndex;
int bufferIndex;
msgPoolData *poolDataTabAddr;
sem_t *ressourceSemFd;
msgPoolDataTabSemId ressourceSemId;
int err;
int bufferNb;
int bufferSize;
void *realAddr;
printf("[ FREE %p ]\n", (void *)addr);
/* on acquiert le droit de modifier les infos sur la ressource */
/* on protege le tableau des associations */
if (msgPoolDataTabLock(space) < 0) {
NZG_ERROR("msgPoolDataTabLock", space->poolDataTabSemId);
goto ERROR;
};
/* verifier le premier arg du shm_open */
poolDataTabAddr = msgPoolDataTabOpen(space);
// TODO: verouiller semaphore DataInfo ??
poolIndex = -1;
bufferIndex = -1;
err = msgBufferGetProcAttach(poolDataTabAddr,
space->poolNb,
&poolIndex, &bufferIndex, addr);
printf("Found : %d\n", err);
printf("Freing pool: %d, buffer: %d\n", poolIndex, bufferIndex);
msgBufferDetachProc(poolDataTabAddr, poolIndex, bufferIndex, addr);
/* unmapper le buffer */
realAddr = addr;
bufferSize = poolDataTabAddr[poolIndex].bufferSize;
bufferNb = poolDataTabAddr[poolIndex].bufferNb;
realAddr = realAddr - poolIndex * bufferSize;
munmap(realAddr, bufferSize * bufferNb);
msgPoolDataTabClose(space, poolDataTabAddr);
// deverouiller semaphore DataInfo
msgPoolDataTabUnlock(space);
// deverouiller semaphore ressource.
msgPoolSemIdIntern(ressourceSemId, space->externId, poolIndex);
ressourceSemFd = sem_open(ressourceSemId, O_CREAT, SEM_DEFAULT_MODE, 0);
if (ressourceSemFd == SEM_FAILED) {
NZG_ERROR("sem_open", ressourceSemId);
goto ERROR;
}
sem_post(ressourceSemFd);
sem_close(ressourceSemFd);
return 0;
ERROR:
return -1;
}

View file

@ -1,72 +0,0 @@
#include "libnazgul.h"
#define NONBLOCK -1
void *msgGet(msgSpace * space, int queueIndex, int option)
{
void *resultAddr;
msgQueueId queueId;
msgQueue *queue;
msgQueueElemId oldElemId;
msgQueueElem *oldElem;
msgPoolData *poolDataTab;
// on teste la possibilité de lecture sur la liste...
if (option == NONBLOCK) {
if (msgQueueReadTryLock(space->externId, queueIndex) < 0) {
NZG_ERROR("msgQueueReadTryLock", space->externId);
goto ERROR;
}
} else {
if (msgQueueReadLock(space->externId, queueIndex) < 0) {
NZG_ERROR("msgQueueReadLock", space->externId);
goto ERROR;
}
}
// la lecture est possible
// on essaye donc de modifier la liste
msgQueueProtLock(space->externId, queueIndex);
msgQueueIdIntern(queueId, space->externId, queueIndex);
// ouvrir la file
queue = msgQueueOpen(queueId);
if (queue == NULL) {
NZG_ERROR("msgQueueOpen", queueId);
goto ERROR;
}
// recupérer l'id de l'ancien element...
msgQueueRem(queue, oldElemId);
oldElem = msgQueueElemOpen(oldElemId);
if (oldElem == NULL) {
NZG_ERROR("msgQueueElemOpen", oldElemId);
goto ERROR;
}
/* on récupere la taille des buffer dans la pool du buffer */
poolDataTab = msgPoolDataTabOpen(space);
// mapper le buffer dans l'espace mémoire du processus
resultAddr =
msgBufferMap(poolDataTab, oldElem->poolIndex, oldElem->bufferIndex);
// attacher au buffer...
if (msgBufferAttachProc(poolDataTab,
oldElem->poolIndex,
oldElem->bufferIndex, resultAddr) < 0) {
NZG_ERROR("msgBufferAttachProc", oldElemId);
goto ERROR;
}
msgPoolDataTabClose(space, poolDataTab);
if (msgQueueElemClose(oldElem) < 0) {
NZG_ERROR("msgQueueElemClose", oldElemId);
}
shm_unlink(oldElemId);
// fermer la file
msgQueueClose(queue);
// on a fini de modifier la liste
msgQueueProtUnlock(space->externId, queueIndex);
return resultAddr;
ERROR:
return NULL;
}

View file

@ -1,46 +0,0 @@
#ifndef _NZG_GLOBAL
#define _NZG_GLOBAL 1
#include <unistd.h> /* POSIX et al */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h> /* pour O_RDWR */
#include <sys/types.h>
#include <sys/mman.h> /* shm_open */
#include <errno.h>
#include <semaphore.h>
#define PAGESIZE sysconf(_SC_PAGESIZE)
#define MSGSPACE_DEFAULT_MODE 0600
#define SEM_DEFAULT_MODE 0600
#define SHM_DEFAULT_MODE 0600
#define MSGSPACE_ID_LEN 32
#define ERR_UNHANDLED "Gérer mieu les erreurs"
#define ANYPOOL -1
#define SPECIFICPOOL 0
#ifndef SEM_FAILED
#define SEM_FAILED ((sem_t *)0)
#endif
#ifndef MAP_FAILED
#define MAP_FAILED ((void *)-1)
#endif
#ifdef _NZG_REALFILEID
#define DEFAULT_MSGSPACELISTID "/tmp/nzgSpaceList"
#else
#define DEFAULT_MSGSPACELISTID "/nzgSpaceList"
#endif
#ifdef _NZG_REALFILEID
#define DEFAULT_MSGSPACELISTSEMID "/tmp/nzgSpaceListSem"
#else
#define DEFAULT_MSGSPACELISTSEMID "/nzgSpaceListSem"
#endif
#define NZG_ERROR(func,str) fprintf(stderr,"*** %s: %s***\n%s in %s:%d\n",func,strerror(errno),str,__FILE__,__LINE__);
#endif

View file

@ -1,48 +0,0 @@
#ifndef _NZG_GLOBAL
#define _NZG_GLOBAL 1
#include <unistd.h> /* POSIX et al */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h> /* pour O_RDWR */
#include <sys/types.h>
#include <sys/mman.h> /* shm_open */
#include <errno.h>
#include <semaphore.h>
#define PAGESIZE sysconf(_SC_PAGESIZE)
#define MSGSPACE_DEFAULT_MODE 0600
#define SEM_DEFAULT_MODE 0600
#define SHM_DEFAULT_MODE 0600
#define MSGSPACE_ID_LEN 32
#define ERR_UNHANDLED "Gérer mieu les erreurs"
#define ANYPOOL -1
#define SPECIFICPOOL 0
#ifndef SEM_FAILED
#define SEM_FAILED ((sem_t *)0)
#endif
#ifndef MAP_FAILED
#define MAP_FAILED ((void *)-1)
#endif
#ifdef _NZG_REALFILEID
#define DEFAULT_MSGSPACELISTID "/tmp/nzgSpaceList"
#else
#define DEFAULT_MSGSPACELISTID "/nzgSpaceList"
#endif
#ifdef _NZG_REALFILEID
#define DEFAULT_MSGSPACELISTSEMID "/tmp/nzgSpaceListSem"
#else
#define DEFAULT_MSGSPACELISTSEMID "/nzgSpaceListSem"
#endif
#define NZG_ERROR(func,str) fprintf(stderr,"*** %s: %s***\n%s in %s:%d\n",func,strerror(errno),str,__FILE__,__LINE__);
#endif

150
src/ids.c
View file

@ -1,150 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
int msgSpaceIdIntern(msgSpaceId dest, const msgSpaceId src)
{
if (strlen(src) > MSGSPACE_ID_LEN) {
return -1;
}
/* sprintf(resNzgId,"/tmp/.nzg-%s",(char *)spaceId); */
#ifdef _NZG_REALFILEID
sprintf(dest, "/tmp/nzgSpace%s", (char *)src);
#else
sprintf(dest, "/nzgSpace%s", (char *)src);
#endif
return 0;
}
int msgPoolDataTabSemIdIntern(msgPoolSemId destSemId, const msgSpaceId externId)
{
if (strlen(externId) > MSGSPACE_ID_LEN * 4) {
return -1;
}
/* sprintf(resNzgId,"/tmp/.nzg-%s",(char *)spaceId); */
#ifdef _NZG_REALFILEID
sprintf(destSemId, "/tmp/nzgPoolDTSem-%s", (char *)externId);
#else
sprintf(destSemId, "/nzgPoolDTSem-%s", (char *)externId);
#endif
return 0;
}
int msgPoolSemIdIntern(msgPoolSemId destSemId,
const msgSpaceId srcPoolId, int poolIdx)
{
if (strlen(srcPoolId) > MSGSPACE_ID_LEN * 4) {
return -1;
}
/* sprintf(resNzgId,"/tmp/.nzg-%s",(char *)spaceId); */
#ifdef _NZG_REALFILEID
sprintf(destSemId, "/tmp/nzgPoolSem-%s-%d", (char *)srcPoolId, poolIdx);
#else
sprintf(destSemId, "/nzgPoolSem-%s-%d", (char *)srcPoolId, poolIdx);
#endif
return 0;
}
int msgPoolDataIdIntern(msgPoolDataTabId dest, const msgSpaceId src)
{
if (strlen(src) > MSGSPACE_ID_LEN) {
return -1;
}
/* sprintf(resNzgId,"/tmp/.nzg-%s",(char *)spaceId); */
#ifdef _NZG_REALFILEID
sprintf(dest, "/tmp/nzgPoolData-%s", (char *)src);
#else
sprintf(dest, "/nzgPoolData-%s", (char *)src);
#endif
return 0;
}
int msgPoolIdIntern(msgPoolId dest, msgPoolId src, int num)
{
if (strlen(src) > MSGSPACE_ID_LEN) {
return -1;
}
#ifdef _NZG_REALFILEID
sprintf(dest, "/tmp/nzgPool-%s-%d", (char *)src, num);
#else
sprintf(dest, "/nzgPool-%s-%d", (char *)src, num);
#endif
return 0;
}
int msgBufferInfoTabIdIntern(msgBufferInfoTabId dest, msgSpaceId src, int num)
{
if (strlen(src) > MSGSPACE_ID_LEN) {
return -1;
}
#ifdef _NZG_REALFILEID
sprintf(dest, "/tmp/nzgBufferInfo-%s-%d", (char *)src, num);
#else
sprintf(dest, "/nzgBufferInfo-%s-%d", (char *)src, num);
#endif
return 0;
}
int msgQueueProtSemIdIntern(msgQueueSemId dest,
msgSpaceId externId, int queueIdx)
{
if (strlen(externId) > MSGSPACE_ID_LEN) {
return -1;
}
#ifdef _NZG_REALFILEID
sprintf(dest, "/tmp/nzgQueueProtSem-%s-%d", (char *)externId, queueIdx);
#else
sprintf(dest, "/nzgQueueProtSem-%s-%d", (char *)externId, queueIdx);
#endif
return 0;
}
int msgQueueReadSemIdIntern(msgQueueSemId dest,
msgSpaceId externId, int queueIdx)
{
if (strlen(externId) > MSGSPACE_ID_LEN) {
return -1;
}
#ifdef _NZG_REALFILEID
sprintf(dest, "/tmp/nzgQueueReadSem-%s-%d", (char *)externId, queueIdx);
#else
sprintf(dest, "/nzgQueueReadSem-%s-%d", (char *)externId, queueIdx);
#endif
return 0;
}
int msgQueueIdIntern(msgQueueId dest, msgSpaceId externId, int queueIdx)
{
if (strlen(externId) > MSGSPACE_ID_LEN) {
return -1;
}
#ifdef _NZG_REALFILEID
sprintf(dest, "/tmp/nzgQueue-%s-%d", (char *)externId, queueIdx);
#else
sprintf(dest, "/nzgQueue-%s-%d", (char *)externId, queueIdx);
#endif
return 0;
}
int msgQueueElemIdIntern(msgQueueElemId dest, msgQueueId src, int counter)
{
if (strlen(src) > MSGSPACE_ID_LEN) {
return -1;
}
sprintf(dest, "%s-%d", (char *)src, counter);
return 0;
}
int msgSpaceListElemIdIntern(msgSpaceListElemId elemListId, msgSpaceId externId)
{
if (strlen(externId) > MSGSPACE_ID_LEN) {
return -1;
}
/* sprintf(resNzgId,"/tmp/.nzg-%s",(char *)spaceId); */
#ifdef _NZG_REALFILEID
sprintf(elemListId, "/tmp/nzgSpaceListElem-%s", (char *)externId);
#else
sprintf(elemListId, "/nzgSpaceListElem-%s", (char *)externId);
#endif
return 0;
}

View file

@ -1,14 +0,0 @@
#ifndef _NZG_IDS
#define _NZG_IDS 1
#include "libnazgul.h"
/* nzg_ids.c */
int msgSpaceIdIntern(msgSpaceId dest, const msgSpaceId src);
int msgPoolSemIdIntern(msgPoolSemId destSemId, const msgSpaceId srcPoolId,
int poolIdx);
int msgPoolDataIdIntern(msgPoolDataTabId dest, const msgSpaceId src);
int msgPoolIdIntern(msgPoolId dest, msgPoolId src, int num);
int msgQueueSemIdIntern(msgQueueSemId dest, msgSpaceId externId, int queueIdx);
int msgQueueIdIntern(msgQueueId dest, msgSpaceId externId, int queueIdx);
#endif

View file

@ -1,22 +0,0 @@
#ifndef _NZG_IDS
#define _NZG_IDS 1
#include "libnazgul.h"
/* nzg_ids.c */
int msgSpaceIdIntern(msgSpaceId dest, const msgSpaceId src);
int msgPoolSemIdIntern(msgPoolSemId destSemId, const msgSpaceId srcPoolId, int poolIdx);
int msgPoolDataIdIntern(msgPoolDataTabId dest, const msgSpaceId src);
int msgPoolIdIntern(msgPoolId dest,msgPoolId src, int num);
int msgQueueSemIdIntern(
msgQueueSemId dest,
msgSpaceId externId,
int queueIdx);
int msgQueueIdIntern(
msgQueueId dest,
msgSpaceId externId,
int queueIdx);
#endif

View file

@ -1,89 +0,0 @@
#ifndef _NZG_IFACE
#define _NZG_IFACE 1
#include "global.h"
typedef enum { true = 1, false = 0 } bool;
typedef char msgSpaceId[MSGSPACE_ID_LEN];
typedef char msgSpaceListId[4 * MSGSPACE_ID_LEN];
typedef char msgSpaceListSemId[4 * MSGSPACE_ID_LEN];
typedef char msgSpaceListElemId[4 * MSGSPACE_ID_LEN];
typedef char msgPoolDataTabId[4 * MSGSPACE_ID_LEN];
typedef char msgPoolDataTabSemId[4 * MSGSPACE_ID_LEN];
typedef char msgBufferInfoTabId[4 * MSGSPACE_ID_LEN];
typedef char msgPoolId[4 * MSGSPACE_ID_LEN];
typedef char msgPoolSemId[4 * MSGSPACE_ID_LEN];
typedef char msgQueueDataId[4 * MSGSPACE_ID_LEN];
typedef char msgQueueId[4 * MSGSPACE_ID_LEN];
typedef char msgQueueElemId[4 * MSGSPACE_ID_LEN];
typedef char msgQueueSemId[4 * MSGSPACE_ID_LEN];
/* pid[] */
/* liste des processus demandeurs */
typedef struct MsgPool {
int bufferSize;
int bufferNb;
} msgPool;
typedef struct MsgBufferInfo {
pid_t ownerPid;
void *addr;
} msgBufferInfo;
typedef struct MsgPoolData {
msgPoolId poolId;
msgBufferInfoTabId bufferInfoTabId;
int bufferNb;
int bufferSize;
int allocDispBuffer;
} msgPoolData;
/* TODO: queueId */
typedef struct MsgSpace {
msgSpaceId id;
msgSpaceId externId;
int poolNb;
int queueNb;
int pid;
msgPoolDataTabId poolDataTabId;
msgPoolDataTabSemId poolDataTabSemId;
} msgSpace;
typedef struct MsgSpaceListElem {
msgSpaceListElemId id;
msgSpaceId spaceId;
msgSpaceListElemId next;
} msgSpaceListElem;
typedef struct MsgSpaceList {
msgSpaceListId id;
int elemCounter;
msgSpaceListElemId headId;
msgSpaceListElemId tailId;
} msgSpaceList;
typedef struct MsgQueueElem {
msgQueueElemId id;
int poolIndex;
int bufferIndex;
msgQueueElemId next;
} msgQueueElem;
typedef struct MsgQueue {
msgQueueId id;
int elemCounter;
msgQueueElemId headId;
msgQueueElemId tailId;
} msgQueue;
#endif
/* */

View file

@ -1,91 +0,0 @@
#ifndef _NZG_IFACE
#define _NZG_IFACE 1
#include "global.h"
typedef enum { true=1, false=0} bool;
typedef char msgSpaceId[MSGSPACE_ID_LEN];
typedef char msgSpaceListId[4*MSGSPACE_ID_LEN];
typedef char msgSpaceListSemId[4*MSGSPACE_ID_LEN];
typedef char msgSpaceListElemId[4*MSGSPACE_ID_LEN];
typedef char msgPoolDataTabId[4*MSGSPACE_ID_LEN];
typedef char msgPoolDataTabSemId[4*MSGSPACE_ID_LEN];
typedef char msgBufferInfoTabId[4*MSGSPACE_ID_LEN];
typedef char msgPoolId[4*MSGSPACE_ID_LEN];
typedef char msgPoolSemId[4*MSGSPACE_ID_LEN];
typedef char msgQueueDataId[4*MSGSPACE_ID_LEN];
typedef char msgQueueId[4*MSGSPACE_ID_LEN];
typedef char msgQueueElemId[4*MSGSPACE_ID_LEN];
typedef char msgQueueSemId[4*MSGSPACE_ID_LEN];
/* pid[] */
/* liste des processus demandeurs */
typedef struct MsgPool {
int bufferSize;
int bufferNb;
} msgPool;
typedef struct MsgBufferInfo {
pid_t ownerPid;
void * addr;
} msgBufferInfo;
typedef struct MsgPoolData {
msgPoolId poolId;
msgBufferInfoTabId bufferInfoTabId;
int bufferNb;
int bufferSize;
int allocDispBuffer;
} msgPoolData;
/* TODO: queueId */
typedef struct MsgSpace {
msgSpaceId id;
msgSpaceId externId;
int poolNb;
int queueNb;
int pid;
msgPoolDataTabId poolDataTabId;
msgPoolDataTabSemId poolDataTabSemId;
} msgSpace;
typedef struct MsgSpaceListElem {
msgSpaceListElemId id;
msgSpaceId spaceId;
msgSpaceListElemId next;
} msgSpaceListElem;
typedef struct MsgSpaceList {
msgSpaceListId id;
int elemCounter;
msgSpaceListElemId headId;
msgSpaceListElemId tailId;
} msgSpaceList;
typedef struct MsgQueueElem {
msgQueueElemId id;
int poolIndex;
int bufferIndex;
msgQueueElemId next;
} msgQueueElem;
typedef struct MsgQueue {
msgQueueId id;
int elemCounter;
msgQueueElemId headId;
msgQueueElemId tailId;
} msgQueue;
#endif
/* */

View file

@ -1,8 +0,0 @@
#ifndef _LIBNAZGUL
#define _LIBNAZGUL 1
#include "global.h"
#include "iface.h"
#include "proto.h"
#endif

View file

@ -1,8 +0,0 @@
#ifndef _LIBNAZGUL
#define _LIBNAZGUL 1
#include "global.h"
#include "iface.h"
#include "proto.h"
#endif

View file

@ -1,10 +0,0 @@
#include "libnazgul.h"
/*
void msgSpaceIdList(msgSpaceListId){
// i = le nombre d'id publics disponnibles
int i=0;
msgSpaceListId idList;
return;
}
*/

33
src/nzg_create.c Normal file
View file

@ -0,0 +1,33 @@
#include <stdlib.h>
#include "nzg_iface.h"
#include "nzg_proto.h"
/*
* spaceId : identifiant externe de l'espace de msg
* queueNb : nombre de files de messages
* poolNb : nombre de pool de buffers
* queueNbCar : tableau de caracteristiques des different pool
*/
msgSpace * msgSpaceCreate(
msgSpaceId spaceId, // identifiant externe de l'espace de msg
int queueNb, // nombre de files de messages
int poolNb, // nombre de pool de buffers
msgPool * queueNbCar // tableau de caracteristiques des different pool
){
// on ajoute spaceId a la liste des msgSpace connus
// on crée queueNb files de messages
// on créer poolNb pool de buffers
// on attache tout ce beau monde au spaceId
// on renvoie un pointeur sur le bon spaceId
msgSpace * result=NULL;
return result;
}

10
src/nzg_iface.h Normal file
View file

@ -0,0 +1,10 @@
#include "types.h"
typedef int msgSpaceId;
typedef int msgSpace;
typedef int msgPool;
/* */

11
src/nzg_list.c Normal file
View file

@ -0,0 +1,11 @@
#include <stdlib.h>
#include "nzg_iface.h"
#include "nzg_proto.h"
char ** msgSpaceIdList(){
// i = le nombre d'id publics disponnibles
int i=0;
char ** idList;
idList=(char **)malloc(i*sizeof(char *));
return idList;
}

8
src/nzg_main.c Normal file
View file

@ -0,0 +1,8 @@
#include "nzg_iface.h"
#include "nzg_proto.h"
int main(void) {
// msgSpaceId mSID=msgSpaceIdGet(""); //renvoie un ID propre au programme
// msgSpace mS=0;
return 0;
}

18
src/nzg_proto.h Normal file
View file

@ -0,0 +1,18 @@
char **msgSpaceIdList(void);
msgSpace * msgSpaceCreate(
msgSpaceId spaceId, // identifiant externe de l'espace de msg
int queueNb, // nombre de files de messages
int poolNb, // nombre de pool de buffers
msgPool * queueNbCar // tableau de caracteristiques des different pool
);
msgSpace * msgSpaceOpen(msgSpaceId spaceId);
void * msgAllocate(
msgSpace * space, //espace de message concerné
int pool, //numéro de pool ou réaliser l'allocation
int taille, //si l'argument précédent est ANYPOOL, taille requise
int option // 0 ou NONBLOCK
);

9
src/nzg_show.c Normal file
View file

@ -0,0 +1,9 @@
#include "nzg_iface.h"
#include "nzg_proto.h"
int main(void) {
//show existing MsgSpaces
char ** msID=msgSpaceIdList(); //renvoie un msgSpaceId
msID=msID;
return 0;
}

0
src/nzg_state.c Normal file
View file

View file

@ -1,62 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
int msgPoolCreate(msgSpaceId externId, int poolIdx, int buffNb, int buffSize)
{
int poolFd;
sem_t *ressourceSemFd;
msgPoolId poolId;
msgPoolSemId poolRessourceSemId;
/* creation des buffers DEBUT */
if (msgPoolIdIntern(poolId, externId, poolIdx) == -1) {
fprintf(stderr, "msgPoolId creation failed for id %s\n",
(char *)poolId);
return -1;
}
poolFd =
shm_open(poolId, O_RDWR | O_CREAT | O_EXCL | O_TRUNC,
MSGSPACE_DEFAULT_MODE);
if (poolFd == -1) {
fprintf(stderr, "msgPool : %s creation failed: %s\n", poolId,
strerror(errno));
return -1;
}
if (ftruncate(poolFd, (buffSize * buffNb)) == -1) {
fprintf(stderr, "msgPool resizing failed: %s\n",
strerror(errno));
return -1;
}
/* creation des buffers FIN */
if (msgPoolSemIdIntern(poolRessourceSemId, externId, poolIdx) == -1) {
fprintf(stderr, "msgPoolId creation failed for id %s\n",
(char *)poolRessourceSemId);
return -1;
}
// on met un semaphore sur le pool
ressourceSemFd =
sem_open(poolRessourceSemId, O_CREAT | O_EXCL, SEM_DEFAULT_MODE,
buffNb);
if (ressourceSemFd == SEM_FAILED) {
NZG_ERROR("sem_open : creation de la ressource",
poolRessourceSemId);
goto ERROR;
} else {
printf("[ Created %s with %d ressources ]\n",
poolRessourceSemId, buffNb);
}
//TODO: verrifier les erreurs sur l'ouverture de la sem
sem_close(ressourceSemFd);
// on met le pool a la taille voulue pour qu'il
// puisse contenir les buffs
close(poolFd);
return 0;
ERROR:
return -1;
}

View file

@ -1,14 +0,0 @@
#include "libnazgul.h"
int msgPoolDataTabClose(msgSpace * space, void *addr)
{
/* unmapper le msgPoolDataTab */
if (munmap(addr, (space->poolNb) * sizeof(msgPoolData)) < 0) {
NZG_ERROR("unmap", space->poolDataTabId);
goto ERROR;
}
return 0;
ERROR:
return -1;
}

View file

@ -1,39 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
void *msgPoolDataTabCreate(msgSpace * space)
{
int poolDataFd; // shm file descriptor
msgPoolData *poolDataTabAddr;
poolDataFd = shm_open(space->poolDataTabId,
O_RDWR | O_CREAT | O_EXCL | O_TRUNC,
MSGSPACE_DEFAULT_MODE);
if (poolDataFd == -1) {
NZG_ERROR("shm_open :create", space->poolDataTabId);
goto ERROR;
}
/* allocation de la bonne zone mémoire pour le poolData */
if (ftruncate(poolDataFd, (space->poolNb) * sizeof(msgPoolData)) == -1) {
NZG_ERROR("ftruncate", space->poolDataTabId);
goto ERROR;
}
close(poolDataFd);
poolDataTabAddr = msgPoolDataTabOpen(space);
if (poolDataTabAddr == NULL) {
NZG_ERROR("msgPoolDataTabOpen : create", space->poolDataTabId);
goto ERROR;
}
/*mmap( 0, sizeof( *mSAddr ),
PROT_READ | PROT_WRITE,
MAP_SHARED, mSFd, 0 );
if( poolDataAddr == MAP_FAILED ) {
NZG_ERROR("mmap",poolDataTabId);
goto ERROR;
} */
return poolDataTabAddr;
ERROR:
return NULL;
}

View file

@ -1,37 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
#define DEBUG 0
int msgPoolDataTabLock(msgSpace * space)
{
int semval;
sem_t *poolDataTabSemFd;
semval = 0;
if (DEBUG) {
printf("Locking %s\n", space->poolDataTabSemId);
}
poolDataTabSemFd = sem_open(space->poolDataTabSemId, O_CREAT,
SEM_DEFAULT_MODE, 1);
if (poolDataTabSemFd == SEM_FAILED) {
NZG_ERROR("sem_open", space->poolDataTabSemId);
goto ERROR;
}
if (sem_wait(poolDataTabSemFd) == -1) {
NZG_ERROR("sem_wait", space->poolDataTabSemId);
goto ERROR;
}
sem_getvalue(poolDataTabSemFd, &semval);
if (DEBUG) {
printf("(AfternValue:%d)\n", semval);
}
sem_close(poolDataTabSemFd);
return 0;
ERROR:
return -1;
}

View file

@ -1,30 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
void *msgPoolDataTabOpen(msgSpace * space)
{
int poolDataTabFd;
void *poolDataTabAddr;
poolDataTabFd = shm_open(space->poolDataTabId,
O_RDWR, MSGSPACE_DEFAULT_MODE);
if (poolDataTabFd == -1) {
NZG_ERROR("shm_open", space->poolDataTabId);
goto ERROR;
}
poolDataTabAddr = mmap(NULL, (space->poolNb) * sizeof(msgPoolData),
PROT_READ | PROT_WRITE,
MAP_SHARED, poolDataTabFd, 0);
if (poolDataTabAddr == MAP_FAILED) {
NZG_ERROR("mmap", space->poolDataTabId);
goto ERROR;
}
close(poolDataTabFd);
return poolDataTabAddr;
ERROR:
return NULL;
}

View file

@ -1,36 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
#define DEBUG 0
int msgPoolDataTabUnlock(msgSpace * space)
{
int semval;
sem_t *poolDataTabSemFd;
if (DEBUG) {
printf("Unlocking %s\n", space->poolDataTabSemId);
}
poolDataTabSemFd = sem_open(space->poolDataTabSemId, O_CREAT,
SEM_DEFAULT_MODE, 1);
if (poolDataTabSemFd == SEM_FAILED) {
NZG_ERROR("sem_open", space->poolDataTabSemId);
goto ERROR;
}
if (sem_post(poolDataTabSemFd) == -1) {
NZG_ERROR("sem_post", space->poolDataTabSemId);
goto ERROR;
}
semval = 0;
sem_getvalue(poolDataTabSemFd, &semval);
if (DEBUG) {
printf("(AfternValue:%d)\n", semval);
}
sem_close(poolDataTabSemFd);
return 0;
ERROR:
return -1;
}

View file

@ -1,49 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
int msgPoolDelete(msgSpaceId spaceId, int poolIdx)
{
msgPoolId poolId;
msgBufferInfoTabId bufferInfoTabId;
msgPoolSemId poolRessourceSemId;
/* suppression des infos sur buffers DEBUT */
if (msgBufferInfoTabIdIntern(bufferInfoTabId, spaceId, poolIdx) == -1) {
fprintf(stderr, "msgPoolId creation failed for id %s\n",
(char *)poolId);
return -1;
}
if (shm_unlink(bufferInfoTabId) < 0) {
fprintf(stderr, "msgInfoTab : %s deletion failed: %s\n",
bufferInfoTabId, strerror(errno));
return -1;
}
/* suppression des infos sur buffers FIN */
/* suppression des buffers DEBUT */
if (msgPoolIdIntern(poolId, spaceId, poolIdx) == -1) {
fprintf(stderr, "msgPoolId creation failed for id %s\n",
(char *)poolId);
return -1;
}
if (shm_unlink(poolId) < 0) {
fprintf(stderr, "msgPool : %s deletion failed: %s\n", poolId,
strerror(errno));
return -1;
}
/* suppression des buffers FIN */
/* suppression de la sémaphore */
if (msgPoolSemIdIntern(poolRessourceSemId, spaceId, poolIdx) == -1) {
fprintf(stderr, "msgPoolId creation failed for id %s\n",
(char *)poolRessourceSemId);
return -1;
}
// on met un semaphore sur le pool
sem_unlink(poolRessourceSemId);
//TODO: verrifier les erreurs sur l'ouverture de la sem
return 0;
}

View file

@ -1,130 +0,0 @@
#ifndef _NZG_PROTO
#define _NZG_PROTO 1
/* allocate.c */
void *msgAllocate(msgSpace * space, int pool, int taille, int option);
/* bufferAttachProc.c */
int msgBufferAttachProc(msgPoolData * poolDataTabAddr, int poolIndex,
int bufferIndex, void *addr);
/* buffer.c */
int msgBufferGetAttachedProcIndex(msgPoolData * poolDataTabAddr, int poolIndex,
void *addr);
/* bufferDetachProc.c */
int msgBufferDetachProc(msgPoolData * poolDataTabAddr, int poolIndex,
int bufferIndex, void *addr);
/* bufferGetFreeIndex.c */
int msgBufferGetFreeIndex(msgPoolData * poolDataTabAddr, int poolIndex);
/* bufferGetProcAttach.c */
int msgBufferGetProcAttach(msgPoolData * poolDataTabAddr, int poolNb,
int *poolIndex, int *bufferIndex, void *addr);
/* bufferInfoTabCreate.c */
int msgBufferInfoTabCreate(msgSpaceId externId, msgPoolData * poolDataTabAddr,
int poolIdx, int bufferNb);
/* bufferInfoTabInit.c */
int msgBufferInfoTabInit(msgPoolData * poolDataTabAddr, int poolIndex);
/* bufferMap.c */
void *msgBufferMap(msgPoolData * poolDataTab, int poolIndex, int bufferIndex);
/* free.c */
int msgFree(msgSpace * space, void *addr);
/* get.c */
void *msgGet(msgSpace * space, int queueIndex, int option);
/* ids.c */
int msgSpaceIdIntern(msgSpaceId dest, const msgSpaceId src);
int msgPoolDataTabSemIdIntern(msgPoolSemId destSemId,
const msgSpaceId externId);
int msgPoolSemIdIntern(msgPoolSemId destSemId, const msgSpaceId srcPoolId,
int poolIdx);
int msgPoolDataIdIntern(msgPoolDataTabId dest, const msgSpaceId src);
int msgPoolIdIntern(msgPoolId dest, msgPoolId src, int num);
int msgBufferInfoTabIdIntern(msgBufferInfoTabId dest, msgSpaceId src, int num);
int msgQueueProtSemIdIntern(msgQueueSemId dest, msgSpaceId externId,
int queueIdx);
int msgQueueReadSemIdIntern(msgQueueSemId dest, msgSpaceId externId,
int queueIdx);
int msgQueueIdIntern(msgQueueId dest, msgSpaceId externId, int queueIdx);
int msgQueueElemIdIntern(msgQueueElemId dest, msgQueueId src, int counter);
int msgSpaceListElemIdIntern(msgSpaceListElemId elemListId,
msgSpaceId externId);
/* list.c */
/* poolCreate.c */
int msgPoolCreate(msgSpaceId externId, int poolIdx, int buffNb, int buffSize);
/* poolDataTabClose.c */
int msgPoolDataTabClose(msgSpace * space, void *addr);
/* poolDataTabCreate.c */
void *msgPoolDataTabCreate(msgSpace * space);
/* poolDataTabLock.c */
int msgPoolDataTabLock(msgSpace * space);
/* poolDataTabOpen.c */
void *msgPoolDataTabOpen(msgSpace * space);
/* poolDataTabUnlock.c */
int msgPoolDataTabUnlock(msgSpace * space);
/* poolDelete.c */
int msgPoolDelete(msgSpaceId spaceId, int poolIdx);
/* put.c */
int msgPut(msgSpace * space, int queueIndex, void *addr);
/* queueAdd.c */
int msgQueueAdd(msgQueue * queue, msgQueueElemId newElemId);
/* queueClose.c */
int msgQueueClose(msgQueue * queue);
/* queueDelete.c */
int msgQueueDelete(msgQueueId externId, int queueIdx);
/* queueElemClose.c */
int msgQueueElemClose(msgQueueElem * queueElem);
/* queueElemCreate.c */
int msgQueueElemCreate(msgQueueElemId finalQueueElemId, msgQueueId queueId,
int counter);
/* queueElemDelete.c */
int msgQueueElemDelete(msgQueueElemId queueElemId);
/* queueElemOpen.c */
void *msgQueueElemOpen(msgQueueElemId queueElemId);
/* queueInit.c */
msgQueue *msgQueueInit(msgSpaceId externId, int queueIdx);
/* queueOpen.c */
void *msgQueueOpen(msgQueueId queueId);
/* queueProtLock.c */
int msgQueueProtLock(msgSpaceId externId, int queueIdx);
/* queueProtUnlock.c */
int msgQueueProtUnlock(msgSpaceId externId, int queueIdx);
/* queueReadLock.c */
int msgQueueReadLock(msgSpaceId externId, int queueIdx);
/* queueReadTryLock.c */
int msgQueueReadTryLock(msgSpaceId externId, int queueIdx);
/* queueReadUnlock.c */
int msgQueueReadUnlock(msgSpaceId externId, int queueIdx);
/* queueRem.c */
int msgQueueRem(msgQueue * queue, msgQueueElemId oldElemId);
/* spaceClose.c */
int msgSpaceClose(msgSpace * space);
/* spaceCreate.c */
msgSpace *msgSpaceCreate(msgSpaceId externId, int queueNb, int poolNb,
msgPool * poolInfos);
/* spaceDelete.c */
int msgSpaceDelete(msgSpaceId externId);
/* spaceListAdd.c */
int msgSpaceListAdd(msgSpaceListElemId newElemId);
/* spaceListClose.c */
int msgSpaceListClose(msgSpaceList * list);
/* spaceListElemClose.c */
int msgSpaceListElemClose(msgSpaceListElem * listElem);
/* spaceListElemCreate.c */
int msgSpaceListElemCreate(msgSpaceListElemId listElemId, msgSpace * space);
/* spaceListElemLink.c */
/* spaceListElemOpen.c */
void *msgSpaceListElemOpen(msgSpaceListElemId listElemId);
/* spaceListFindId.c */
int msgSpaceListFindId(msgSpaceId externId);
int msgSpaceListElemFindId(msgSpaceListElemId elemId, msgSpaceId spaceId);
/* spaceListInit.c */
int msgSpaceListInit(void);
/* spaceListLocking.c */
int msgSpaceListLock(void);
int msgSpaceListUnlock(void);
/* spaceListOpen.c */
void *msgSpaceListOpen(void);
/* spaceListRem.c */
int msgSpaceListRem(msgSpaceId spaceId);
/* spaceOpen.c */
msgSpace *msgSpaceOpen(msgSpaceId externId);
/* spaceState.c */
#endif

View file

@ -1,118 +0,0 @@
#ifndef _NZG_PROTO
#define _NZG_PROTO 1
/* allocate.c */
void *msgAllocate(msgSpace *space, int pool, int taille, int option);
/* bufferAttachProc.c */
int msgBufferAttachProc(msgPoolData *poolDataTabAddr, int poolIndex, int bufferIndex, void *addr);
/* buffer.c */
int msgBufferGetAttachedProcIndex(msgPoolData *poolDataTabAddr, int poolIndex, void *addr);
/* bufferDetachProc.c */
int msgBufferDetachProc(msgPoolData *poolDataTabAddr, int poolIndex, int bufferIndex, void *addr);
/* bufferGetFreeIndex.c */
int msgBufferGetFreeIndex(msgPoolData *poolDataTabAddr, int poolIndex);
/* bufferGetProcAttach.c */
int msgBufferGetProcAttach(msgPoolData *poolDataTabAddr, int poolNb, int *poolIndex, int *bufferIndex, void *addr);
/* bufferInfoTabCreate.c */
int msgBufferInfoTabCreate(msgSpaceId externId, msgPoolData *poolDataTabAddr, int poolIdx, int bufferNb);
/* bufferInfoTabInit.c */
int msgBufferInfoTabInit(msgPoolData *poolDataTabAddr, int poolIndex);
/* bufferMap.c */
void *msgBufferMap(msgPoolData *poolDataTab, int poolIndex, int bufferIndex);
/* free.c */
int msgFree(msgSpace *space, void *addr);
/* get.c */
void *msgGet(msgSpace *space, int queueIndex, int option);
/* ids.c */
int msgSpaceIdIntern(msgSpaceId dest, const msgSpaceId src);
int msgPoolDataTabSemIdIntern(msgPoolSemId destSemId, const msgSpaceId externId);
int msgPoolSemIdIntern(msgPoolSemId destSemId, const msgSpaceId srcPoolId, int poolIdx);
int msgPoolDataIdIntern(msgPoolDataTabId dest, const msgSpaceId src);
int msgPoolIdIntern(msgPoolId dest, msgPoolId src, int num);
int msgBufferInfoTabIdIntern(msgBufferInfoTabId dest, msgSpaceId src, int num);
int msgQueueProtSemIdIntern(msgQueueSemId dest, msgSpaceId externId, int queueIdx);
int msgQueueReadSemIdIntern(msgQueueSemId dest, msgSpaceId externId, int queueIdx);
int msgQueueIdIntern(msgQueueId dest, msgSpaceId externId, int queueIdx);
int msgQueueElemIdIntern(msgQueueElemId dest, msgQueueId src, int counter);
int msgSpaceListElemIdIntern(msgSpaceListElemId elemListId, msgSpaceId externId);
/* list.c */
/* poolCreate.c */
int msgPoolCreate(msgSpaceId externId, int poolIdx, int buffNb, int buffSize);
/* poolDataTabClose.c */
int msgPoolDataTabClose(msgSpace *space, void *addr);
/* poolDataTabCreate.c */
void *msgPoolDataTabCreate(msgSpace *space);
/* poolDataTabLock.c */
int msgPoolDataTabLock(msgSpace *space);
/* poolDataTabOpen.c */
void *msgPoolDataTabOpen(msgSpace *space);
/* poolDataTabUnlock.c */
int msgPoolDataTabUnlock(msgSpace *space);
/* poolDelete.c */
int msgPoolDelete(msgSpaceId spaceId, int poolIdx);
/* put.c */
int msgPut(msgSpace *space, int queueIndex, void *addr);
/* queueAdd.c */
int msgQueueAdd(msgQueue *queue, msgQueueElemId newElemId);
/* queueClose.c */
int msgQueueClose(msgQueue *queue);
/* queueDelete.c */
int msgQueueDelete(msgQueueId externId, int queueIdx);
/* queueElemClose.c */
int msgQueueElemClose(msgQueueElem *queueElem);
/* queueElemCreate.c */
int msgQueueElemCreate(msgQueueElemId finalQueueElemId, msgQueueId queueId, int counter);
/* queueElemDelete.c */
int msgQueueElemDelete(msgQueueElemId queueElemId);
/* queueElemOpen.c */
void *msgQueueElemOpen(msgQueueElemId queueElemId);
/* queueInit.c */
msgQueue *msgQueueInit(msgSpaceId externId, int queueIdx);
/* queueOpen.c */
void *msgQueueOpen(msgQueueId queueId);
/* queueProtLock.c */
int msgQueueProtLock(msgSpaceId externId, int queueIdx);
/* queueProtUnlock.c */
int msgQueueProtUnlock(msgSpaceId externId, int queueIdx);
/* queueReadLock.c */
int msgQueueReadLock(msgSpaceId externId, int queueIdx);
/* queueReadTryLock.c */
int msgQueueReadTryLock(msgSpaceId externId, int queueIdx);
/* queueReadUnlock.c */
int msgQueueReadUnlock(msgSpaceId externId, int queueIdx);
/* queueRem.c */
int msgQueueRem(msgQueue *queue, msgQueueElemId oldElemId);
/* spaceClose.c */
int msgSpaceClose(msgSpace *space);
/* spaceCreate.c */
msgSpace *msgSpaceCreate(msgSpaceId externId, int queueNb, int poolNb, msgPool *poolInfos);
/* spaceDelete.c */
int msgSpaceDelete(msgSpaceId externId);
/* spaceListAdd.c */
int msgSpaceListAdd(msgSpaceListElemId newElemId);
/* spaceListClose.c */
int msgSpaceListClose(msgSpaceList *list);
/* spaceListElemClose.c */
int msgSpaceListElemClose(msgSpaceListElem *listElem);
/* spaceListElemCreate.c */
int msgSpaceListElemCreate(msgSpaceListElemId listElemId, msgSpace *space);
/* spaceListElemLink.c */
/* spaceListElemOpen.c */
void *msgSpaceListElemOpen(msgSpaceListElemId listElemId);
/* spaceListFindId.c */
int msgSpaceListFindId(msgSpaceId externId);
int msgSpaceListElemFindId(msgSpaceListElemId elemId, msgSpaceId spaceId);
/* spaceListInit.c */
int msgSpaceListInit(void);
/* spaceListLocking.c */
int msgSpaceListLock(void);
int msgSpaceListUnlock(void);
/* spaceListOpen.c */
void *msgSpaceListOpen(void);
/* spaceListRem.c */
int msgSpaceListRem(msgSpaceId spaceId);
/* spaceOpen.c */
msgSpace *msgSpaceOpen(msgSpaceId externId);
/* spaceState.c */
#endif

View file

@ -1,66 +0,0 @@
#include "libnazgul.h"
int msgPut(msgSpace * space, int queueIndex, void *addr)
{
// retrouver le pool, buffer qui correspondent à l'addresse...
msgPoolData *poolDataTabAddr;
int poolIndex;
int bufferIndex;
int err;
msgQueueElemId newElemId;
msgQueueElem *queueElem;
msgQueueId queueId;
msgQueue *queue;
msgPoolDataTabLock(space);
poolDataTabAddr = msgPoolDataTabOpen(space);
if (poolDataTabAddr == NULL) {
NZG_ERROR("msgPoolDataTabOpen", space->poolDataTabId);
goto ERROR;
}
err = msgBufferGetProcAttach(poolDataTabAddr,
space->poolNb,
&poolIndex, &bufferIndex, addr);
if (err) {
//FIXME
}
// ouvrir la queue avec le bon index
msgQueueIdIntern(queueId, space->externId, queueIndex);
msgQueueProtLock(space->externId, queueIndex);
queue = msgQueueOpen(queueId);
// creer un element vide
msgQueueElemCreate(newElemId, queueId, queue->elemCounter);
// ouvrir l'element
queueElem = msgQueueElemOpen(newElemId);
// modifier les index pour retrouver le buffer
queueElem->poolIndex = poolIndex;
queueElem->bufferIndex = bufferIndex;
// fermer l'element
if (msgQueueElemClose(queueElem) < 0) {
NZG_ERROR("msgQueueElemClose", "");
goto ERROR;
}
//ajouter le message a la bonne file...
if (msgQueueAdd(queue, newElemId) < 0) {
NZG_ERROR("msgQueueAdd", newElemId);
goto ERROR;
}
// fermer la file
msgQueueClose(queue);
msgQueueProtUnlock(space->externId, queueIndex);
msgPoolDataTabClose(space, poolDataTabAddr);
msgPoolDataTabUnlock(space);
// on laisse une nouvelle ressource de la liste au get
msgQueueReadUnlock(space->externId, queueIndex);
return 0;
ERROR:
return -1;
}

View file

@ -1,49 +0,0 @@
#include "libnazgul.h"
// on ajoute en fin de queue...
int msgQueueAdd(msgQueue * queue, msgQueueElemId newElemId)
{
msgQueueElem *queueOldTailElem;
msgQueueElem *queueNewTailElem;
// on informe l'element qu'il est le dernier
queueNewTailElem = msgQueueElemOpen(newElemId);
if (queueNewTailElem == NULL) {
NZG_ERROR("msgQueueElemOpen", newElemId);
goto ERROR;
}
strcpy(queueNewTailElem->next, newElemId);
if (msgQueueElemClose(queueNewTailElem) < 0) {
NZG_ERROR("msgQueueElemClose", newElemId);
goto ERROR;
}
/* TODO: verifier si la liste n'est pas vide... */
if ((strcmp(queue->headId, queue->id) == 0)
&& (strcmp(queue->tailId, queue->id) == 0)) {
printf("- premier elem de queue -\n");
// on donne a la queue l'id de l'element
strcpy(queue->headId, newElemId);
strcpy(queue->tailId, newElemId);
} else {
/* on informe son prédecesseur qu'il a un suivant */
queueOldTailElem = msgQueueElemOpen(queue->tailId);
if (queueOldTailElem == NULL) {
NZG_ERROR("msgQueueElemOpen", queue->tailId);
goto ERROR;
}
strcpy(queueOldTailElem->next, newElemId);
if (msgQueueElemClose(queueOldTailElem) < 0) {
NZG_ERROR("msgQueueElemClose", queue->tailId);
goto ERROR;
}
// on donne a la queue l'id du dernier element
strcpy(queue->tailId, newElemId);
}
// on incremente elemCounter
queue->elemCounter++;
return 0;
ERROR:
return -1;
}

View file

@ -1,17 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
int msgQueueClose(msgQueue * queue)
{
msgQueueId qId;
strcpy(qId, queue->id);
if (munmap(queue, sizeof(msgQueue)) < 0) {
NZG_ERROR("unmap", qId);
goto ERROR;
}
return 0;
ERROR:
return -1;
}

View file

@ -1,34 +0,0 @@
#include "libnazgul.h"
int msgQueueDelete(msgQueueId externId, int queueIdx)
{
msgQueue *queue;
msgQueueId queueId;
msgQueueSemId queueProtLockSemId;
msgQueueSemId queueReadLockSemId;
msgQueueIdIntern(queueId, externId, queueIdx);
queue = msgQueueOpen(queueId);
if (strcmp(queue->headId, queue->id) != 0) {
// liste non-vide
if (msgQueueElemDelete(queue->headId) < 0) {
NZG_ERROR("msgQueueElemDelete", queue->headId);
goto ERROR;
}
}
msgQueueProtSemIdIntern(queueProtLockSemId, externId, queueIdx);
msgQueueReadSemIdIntern(queueReadLockSemId, externId, queueIdx);
sem_unlink(queueProtLockSemId);
sem_unlink(queueReadLockSemId);
if (shm_unlink(queueId) < 0) {
NZG_ERROR("shm_unlink msgQueueElem", queueId);
goto ERROR;
}
return 0;
ERROR:
return -1;
}

View file

@ -1,16 +0,0 @@
#include "libnazgul.h"
int msgQueueElemClose(msgQueueElem * queueElem)
{
msgQueueElemId qId;
strcpy(qId, queueElem->id);
if (munmap(queueElem, sizeof(msgQueueElem)) < 0) {
NZG_ERROR("unmap", qId);
goto ERROR;
}
return 0;
ERROR:
return -1;
}

View file

@ -1,30 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
int msgQueueElemCreate(msgQueueElemId finalQueueElemId,
msgQueueId queueId, int counter)
{
msgQueueElemId queueElemId;
int queueElemFd;
msgQueueElemIdIntern(queueElemId, queueId, counter);
strcpy(finalQueueElemId, queueElemId);
queueElemFd = shm_open(queueElemId,
O_RDWR | O_CREAT | O_EXCL | O_TRUNC,
SHM_DEFAULT_MODE);
if (queueElemFd == -1) {
NZG_ERROR("shm_open : msgQueueElem creation", queueElemId);
goto ERROR;
}
if (ftruncate(queueElemFd, sizeof(msgQueueElem)) < 0) {
NZG_ERROR("ftruncate", queueElemId);
goto ERROR;
}
close(queueElemFd);
return 0;
ERROR:
return -1;
}

View file

@ -1,33 +0,0 @@
#include "libnazgul.h"
int msgQueueElemDelete(msgQueueElemId queueElemId)
{
msgQueueElem *queueElem;
msgQueueElemId nextIdToDie;
queueElem = msgQueueElemOpen(queueElemId);
if (queueElem == NULL) {
NZG_ERROR("msgQueueElemOpen", queueElemId);
goto ERROR;
}
strcpy(nextIdToDie, queueElem->next);
if (msgQueueElemClose(queueElem) < 0) {
NZG_ERROR("msgQueueElemClose", queueElemId);
goto ERROR;
}
// on détruit l'élément
shm_unlink(queueElemId);
if (nextIdToDie != queueElemId) {
return msgQueueElemDelete(nextIdToDie);
} else {
printf("msgQueueElemDelete: EOL reached \n");
// element unique...
return 0;
}
ERROR:
return -1;
}

View file

@ -1,28 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
void *msgQueueElemOpen(msgQueueElemId queueElemId)
{
int queueElemFd;
void *queueElemAddr;
queueElemFd = shm_open(queueElemId, O_RDWR, SHM_DEFAULT_MODE);
if (queueElemFd == -1) {
NZG_ERROR("shm_open : msgQueue open", queueElemId);
goto ERROR;
}
queueElemAddr = mmap(NULL,
sizeof(msgQueueElem),
PROT_READ | PROT_WRITE,
MAP_SHARED, queueElemFd, 0);
if (queueElemAddr == MAP_FAILED) {
NZG_ERROR("mmap", queueElemId);
goto ERROR;
}
close(queueElemFd);
return queueElemAddr;
ERROR:
return NULL;
}

View file

@ -1,71 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
msgQueue *msgQueueInit(msgSpaceId externId, int queueIdx)
{
int queueFd;
msgQueue *queue;
sem_t *semProtectFd;
msgQueueSemId queueSemProtectId;
sem_t *semReadableFd;
msgQueueSemId queueSemReadableId;
msgQueueId queueId;
queue = NULL;
msgQueueProtSemIdIntern(queueSemProtectId, externId, queueIdx);
msgQueueReadSemIdIntern(queueSemReadableId, externId, queueIdx);
// creation du semaphore de lecture
semReadableFd = sem_open(queueSemReadableId,
O_CREAT | O_EXCL, SEM_DEFAULT_MODE, 0);
if (semReadableFd == SEM_FAILED) {
NZG_ERROR("sem_open", queueSemReadableId);
goto ERROR;
}
// creation du semaphore de protection
semProtectFd = sem_open(queueSemProtectId,
O_CREAT | O_EXCL, SEM_DEFAULT_MODE, 0);
if (semProtectFd == SEM_FAILED) {
NZG_ERROR("sem_open", queueSemProtectId);
goto ERROR;
}
/* if(sem_wait(semProtectFd)==-1){
NZG_ERROR("sem_wait",queueSemProtectId);
goto ERROR;
} */
if (msgQueueIdIntern(queueId, externId, queueIdx) < 0) {
return NULL;
}
queueFd =
shm_open(queueId, O_RDWR | O_CREAT | O_EXCL | O_TRUNC,
MSGSPACE_DEFAULT_MODE);
if (queueFd == -1) {
NZG_ERROR("shm_open : queueInit", queueId);
return NULL;
}
if (ftruncate(queueFd, sizeof(msgQueue)) == -1) {
fprintf(stderr, "Queue resizing failed: %s\n", strerror(errno));
return NULL;
}
queue = msgQueueOpen(queueId);
/* on remplit la structure msgQueue */
queue->elemCounter = 0;
strcpy(queue->id, queueId);
strcpy(queue->headId, queue->id);
strcpy(queue->tailId, queue->id);
/* on ferme tout ce qu'il faut */
close(queueFd);
msgQueueProtUnlock(externId, queueIdx);
return queue;
ERROR:
return NULL;
}

View file

@ -1,27 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
void *msgQueueOpen(msgQueueId queueId)
{
int queueFd;
void *queueAddr;
queueFd = shm_open(queueId, O_RDWR, SHM_DEFAULT_MODE);
if (queueFd == -1) {
NZG_ERROR("shm_open : msgQueue open", queueId);
goto ERROR;
}
queueAddr = mmap(NULL,
sizeof(msgQueue),
PROT_READ | PROT_WRITE, MAP_SHARED, queueFd, 0);
if (queueAddr == MAP_FAILED) {
NZG_ERROR("mmap", queueId);
goto ERROR;
}
close(queueFd);
return queueAddr;
ERROR:
return NULL;
}

View file

@ -1,37 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
#define DEBUG 0
int msgQueueProtLock(msgSpaceId externId, int queueIdx)
{
int semval;
sem_t *queueSemFd;
msgQueueSemId queueSemId;
msgQueueProtSemIdIntern(queueSemId, externId, queueIdx);
if (DEBUG) {
printf("Locking %s\n", queueSemId);
}
queueSemFd = sem_open(queueSemId, O_CREAT, SEM_DEFAULT_MODE, 1);
if (queueSemFd == SEM_FAILED) {
NZG_ERROR("sem_open", queueSemId);
goto ERROR;
}
if (sem_wait(queueSemFd) == -1) {
NZG_ERROR("sem_wait", queueSemId);
goto ERROR;
}
semval = 0;
sem_getvalue(queueSemFd, &semval);
if (DEBUG) {
printf("(AfterValue:%d)\n", semval);
}
sem_close(queueSemFd);
sem_close(queueSemFd);
return 0;
ERROR:
return -1;
}

View file

@ -1,38 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
#define DEBUG 0
int msgQueueProtUnlock(msgSpaceId externId, int queueIdx)
{
int semval;
sem_t *queueSemFd;
msgQueueSemId queueSemId;
msgQueueProtSemIdIntern(queueSemId, externId, queueIdx);
if (DEBUG) {
printf("Unlocking %s\n", queueSemId);
}
queueSemFd = sem_open(queueSemId, O_CREAT, SEM_DEFAULT_MODE, 1);
if (queueSemFd == SEM_FAILED) {
NZG_ERROR("sem_open", queueSemId);
goto ERROR;
}
if (sem_post(queueSemFd) == -1) {
NZG_ERROR("sem_post", queueSemId);
goto ERROR;
}
semval = 0;
sem_getvalue(queueSemFd, &semval);
if (DEBUG) {
printf("(AfterValue:%d)\n", semval);
}
sem_close(queueSemFd);
return 0;
ERROR:
return -1;
}

View file

@ -1,37 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
#define DEBUG 0
int msgQueueReadLock(msgSpaceId externId, int queueIdx)
{
int semval;
sem_t *queueSemFd;
msgQueueSemId queueSemId;
msgQueueReadSemIdIntern(queueSemId, externId, queueIdx);
if (DEBUG) {
printf("Locking %s\n", queueSemId);
}
queueSemFd = sem_open(queueSemId, O_CREAT, SEM_DEFAULT_MODE, 1);
if (queueSemFd == SEM_FAILED) {
NZG_ERROR("sem_open", queueSemId);
goto ERROR;
}
if (sem_wait(queueSemFd) == -1) {
NZG_ERROR("sem_wait", queueSemId);
goto ERROR;
}
semval = 0;
sem_getvalue(queueSemFd, &semval);
if (DEBUG) {
printf("(AfterValue:%d)\n", semval);
}
sem_close(queueSemFd);
return 0;
ERROR:
return -1;
}

View file

@ -1,37 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
#define DEBUG 0
int msgQueueReadTryLock(msgSpaceId externId, int queueIdx)
{
int semval;
sem_t *queueSemFd;
msgQueueSemId queueSemId;
msgQueueReadSemIdIntern(queueSemId, externId, queueIdx);
queueSemFd = sem_open(queueSemId, O_CREAT, SEM_DEFAULT_MODE, 1);
if (queueSemFd == SEM_FAILED) {
NZG_ERROR("sem_open", queueSemId);
goto ERROR;
}
if (sem_trywait(queueSemFd) == -1) {
NZG_ERROR("sem_wait", queueSemId);
goto ERROR;
}
if (DEBUG) {
printf("Locking %s\n", queueSemId);
}
semval = 0;
sem_getvalue(queueSemFd, &semval);
if (DEBUG) {
printf("(AfterValue:%d)\n", semval);
}
sem_close(queueSemFd);
return 0;
ERROR:
return -1;
}

View file

@ -1,37 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
#define DEBUG 0
int msgQueueReadUnlock(msgSpaceId externId, int queueIdx)
{
int semval;
sem_t *queueSemFd;
msgQueueSemId queueSemId;
msgQueueReadSemIdIntern(queueSemId, externId, queueIdx);
if (DEBUG) {
printf("Unlocking %s\n", queueSemId);
}
queueSemFd = sem_open(queueSemId, O_CREAT, SEM_DEFAULT_MODE, 1);
if (queueSemFd == SEM_FAILED) {
NZG_ERROR("sem_open", queueSemId);
goto ERROR;
}
if (sem_post(queueSemFd) == -1) {
NZG_ERROR("sem_post", queueSemId);
goto ERROR;
}
semval = 0;
sem_getvalue(queueSemFd, &semval);
if (DEBUG) {
printf("(AfterValue:%d)\n", semval);
}
sem_close(queueSemFd);
return 0;
ERROR:
return -1;
}

View file

@ -1,37 +0,0 @@
#include "libnazgul.h"
// l'id de l'element enlevé vas dans oldElemId
int msgQueueRem(msgQueue * queue, msgQueueElemId oldElemId)
{
msgQueueElem *queueOldHeadElem;
if (strcmp(queue->headId, queue->id) == 0) {
NZG_ERROR("msgQueueElemRem : Empty queue", queue->id);
goto ERROR;
}
strcpy(oldElemId, queue->headId);
queueOldHeadElem = msgQueueElemOpen(oldElemId);
if (queueOldHeadElem == NULL) {
NZG_ERROR("msgQueueElemOpen", oldElemId);
goto ERROR;
}
// on indique à la queue le nouveau premier element
strcpy(queue->headId, queueOldHeadElem->next);
if (strcmp(queueOldHeadElem->next, oldElemId) == 0) {
strcpy(queue->headId, queue->id);
}
// on fait en sorte que l'element ne connaisse plus
// ses voisins (utile pour le Delete)
strcpy(queueOldHeadElem->next, queueOldHeadElem->id);
if (msgQueueElemClose(queueOldHeadElem) < 0) {
NZG_ERROR("msgQueueElemClose", oldElemId);
goto ERROR;
}
return 0;
ERROR:
return -1;
}

View file

@ -1,16 +0,0 @@
#include "libnazgul.h"
int msgSpaceClose(msgSpace * space)
{
msgSpaceId spaceId;
strcpy(spaceId, space->id);
if (munmap(space, sizeof(msgSpace)) < 0) {
NZG_ERROR("unmap", spaceId);
goto ERROR;
}
return 0;
ERROR:
return -1;
}

View file

@ -1,197 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
/* prototypes des fonctions annexes à ne pas exporter */
int msgSpaceIdIntern(msgSpaceId dest, const msgSpaceId src);
int msgPoolDataIdIntern(msgSpaceId dest, const msgSpaceId src);
int msgPoolDataTabSemIdIntern(msgPoolSemId destSemId,
const msgSpaceId externId);
/*
* spaceId : identifiant externe de l'espace de msg
* queueNb : nombre de files de messages
* poolNb : nombre de pool de buffers
* queueNbCar : tableau de caracteristiques des different pool
*/
msgSpace *msgSpaceCreate(msgSpaceId externId,
int queueNb, int poolNb, msgPool * poolInfos)
{
msgSpaceId nzgId;
/* msgSpaceList mSList; */
int mSFd; // shm file descriptor
int i;
int err;
static int mSIdNum = -1;
msgSpace *space;
msgSpaceListElemId listElemId;
msgPoolDataTabId poolDataTabId;
msgPoolData *poolDataTabAddr;
msgBufferInfoTabId bufferInfoTabId;
msgPoolId poolId;
sem_t *mSDataTabSemFd;
mSIdNum++;
space = NULL;
/** recuperation de la liste des msgSpace **/
/* (creation si elle n'existe pas */
/** on créee le nouvel element **/
printf("PAGESIZE : %d\n", (int)PAGESIZE);
if (msgSpaceIdIntern(nzgId, externId) < 0) {
return NULL;
}
if (msgSpaceListInit() < 0) {
NZG_ERROR("msgSpaceListInit", nzgId);
goto ERROR;
};
if (msgSpaceListLock() < 0) {
NZG_ERROR("msgSpaceListLock", "");
goto ERROR;
}
if ((err = msgSpaceListFindId(externId)) < 1) {
if (err == 0) {
// soit le msgSpace existe deja
NZG_ERROR("spaceListFindId : existing ", nzgId);
} else {
// zut, il y a soit une erreur
NZG_ERROR("spaceListFindId : error ", nzgId);
}
msgSpaceListUnlock();
// on quitte
goto ERROR;
}
printf("spaceListFind ok\n");
if (msgSpaceListUnlock() < 0) {
NZG_ERROR("msgSpaceListUnlock", "");
goto ERROR;
}
printf("spaceListUnlock ok\n");
fprintf(stderr, "Creating msgSpace with id : %s\n", nzgId);
mSFd = shm_open(nzgId,
O_RDWR | O_CREAT | O_EXCL | O_TRUNC,
MSGSPACE_DEFAULT_MODE);
if (mSFd == -1) {
NZG_ERROR("shm_open : msgSpace creation", nzgId);
goto ERROR;
}
/* on redimentionne l'element */
if (ftruncate(mSFd, sizeof(*space)) == -1) {
NZG_ERROR("ftruncate", nzgId);
goto ERROR;
}
/* Map the memory object */
space = mmap(0, sizeof(*space),
PROT_READ | PROT_WRITE, MAP_SHARED, mSFd, 0);
if (space == MAP_FAILED) {
NZG_ERROR("mmap", nzgId);
goto ERROR;
}
printf("CREAT: msgSpace mapped to 0x%08lx in %d\n", (long)space,
(int)getpid());
/* on ferme le descripteur du fichier */
close(mSFd);
/* on remplit la structure */
strcpy(space->id, nzgId);
space->poolNb = poolNb;
space->queueNb = queueNb;
space->pid = getpid();
msgPoolDataTabSemIdIntern(space->poolDataTabSemId, externId);
/* creation du poolData */
msgPoolDataIdIntern(poolDataTabId, externId);
strcpy(space->poolDataTabId, poolDataTabId);
strcpy(space->externId, externId);
mSDataTabSemFd = sem_open(space->poolDataTabSemId,
O_CREAT | O_EXCL, SEM_DEFAULT_MODE, 0);
if (mSDataTabSemFd == SEM_FAILED) {
NZG_ERROR("sem_open : creation de la ressource",
space->poolDataTabSemId);
goto ERROR;
} else {
/* NZG_ERROR("sem_open : creation oki",
space->poolDataTabSemId); */
}
sem_close(mSDataTabSemFd);
/* attacher le tableau des msgPoolData */
poolDataTabAddr = msgPoolDataTabCreate(space);
if (poolDataTabAddr == NULL) {
NZG_ERROR("msgPoolDataTabCreate", space->poolDataTabId);
goto ERROR;
}
for (i = 0; i < poolNb; i++) {
/* Pour chacun des poolData
* - y écrire les informations passées en param
* - creer les zones mémoires de chacune des pool
*/
// creation d'une pool
poolDataTabAddr[i].bufferNb = poolInfos[i].bufferNb;
poolDataTabAddr[i].bufferSize = poolInfos[i].bufferSize;
poolDataTabAddr[i].allocDispBuffer = 0;
if (msgBufferInfoTabIdIntern(bufferInfoTabId, externId, i) ==
-1) {
fprintf(stderr,
"msgBufferInfoTabId creation failed for id %s\n",
(char *)poolId);
return NULL;
}
strcpy(poolDataTabAddr[i].bufferInfoTabId, bufferInfoTabId);
printf("buffIfoTab %d name : %s\n", i,
poolDataTabAddr[i].bufferInfoTabId);
msgBufferInfoTabCreate(externId, poolDataTabAddr, i,
poolInfos[i].bufferNb);
if (msgPoolIdIntern(poolId, externId, i) == -1) {
fprintf(stderr, "msgPoolId creation failed for id %s\n",
(char *)poolId);
return NULL;
}
strcpy(poolDataTabAddr[i].poolId, poolId);
msgPoolCreate(externId, i, poolInfos[i].bufferNb,
poolInfos[i].bufferSize);
}
/* on crée queueNb files de messages */
printf("Creating queues:\n");
for (i = 0; i < queueNb; i++) {
printf("- queue %i...", i);
fflush(stdout);
if (msgQueueInit(space->externId, i) < 0) {
printf("fail.\n");
NZG_ERROR("msgQueueInit : queue ?? for",
space->externId);
goto ERROR;
}
printf("ok.\n");
}
msgPoolDataTabClose(space, poolDataTabAddr);
/* on ajoute spaceId a la liste des msgSpace connus */
printf("spaceListInit...\n");
printf("ok\n");
msgSpaceListLock();
printf("spaceListLock...ok\n");
msgSpaceListElemCreate(listElemId, space);
printf("spaceListElemCreate...ok\n");
msgSpaceListAdd(listElemId);
printf("spaceListAdd...ok\n");
msgSpaceListUnlock();
printf("spaceListUnlock...ok\n");
/* on renvoie un pointeur sur le bon spaceId */
msgPoolDataTabUnlock(space);
return space;
ERROR:
return NULL;
}

View file

@ -1,67 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
/* prototypes des fonctions annexes à ne pas exporter */
int msgSpaceIdIntern(msgSpaceId dest, const msgSpaceId src);
int msgPoolDataIdIntern(msgSpaceId dest, const msgSpaceId src);
int msgPoolDataTabSemIdIntern(msgPoolSemId destSemId,
const msgSpaceId externId);
int msgSpaceDelete(msgSpaceId externId)
{
//int shmId;
msgSpaceId nzgId;
msgSpace *space;
int i;
fprintf(stderr, "Deleting msgSpace with id : %s\n", externId);
if (msgSpaceIdIntern(nzgId, externId) == -1) {
NZG_ERROR("msgSpaceIdIntern", externId);
goto ERROR;
}
space = msgSpaceOpen(externId);
/* supprimer chaque pool */
for (i = 0; i < space->poolNb; i++) {
msgPoolDelete(externId, i);
}
/* supprimer chaque queue */
for (i = 0; i < space->queueNb; i++) {
msgQueueDelete(externId, i);
}
printf("openned successfully !\n");
printf("Unlinking DataTab... ");
if (shm_unlink(space->poolDataTabId) < 0) {
perror("shm_unlink");
return -1;
}
printf("ok\n");
printf("Unlinking DataTabSem... ");
if (sem_unlink(space->poolDataTabSemId) < 0) {
NZG_ERROR("sem_unlink", space->poolDataTabSemId);
return -1;
}
printf("ok\n");
if (shm_unlink(nzgId) < 0) {
NZG_ERROR("shm_unlink", nzgId);
goto ERROR;
};
if (msgSpaceListLock() < 0) {
NZG_ERROR("msgSpaceListLock", "");
goto ERROR;
}
if (msgSpaceListRem(nzgId) < 0) {
NZG_ERROR("msgSpaceListRem", nzgId);
goto ERROR;
}
if (msgSpaceListUnlock() < 0) {
NZG_ERROR("msgSpaceListUnlock", "");
goto ERROR;
}
return 0;
ERROR:
return -1;
}

View file

@ -1,57 +0,0 @@
#include "libnazgul.h"
// ajoute un element en début de liste.
// fait pointer l'ancien dernier vers lui
// il s'enregistre en tant que dernier chez la liste
int msgSpaceListAdd(msgSpaceListElemId newElemId)
{
msgSpaceListElem *listOldTailElem;
msgSpaceListElem *listNewTailElem;
msgSpaceList *list;
list = msgSpaceListOpen();
if (list == NULL) {
NZG_ERROR("msgSpaceListOpen", "");
goto ERROR;
}
// on informe l'element qui est le dernier
listNewTailElem = msgSpaceListElemOpen(newElemId);
if (listNewTailElem == NULL) {
NZG_ERROR("msgSpaceListElemOpen", newElemId);
goto ERROR;
}
strcpy(listNewTailElem->next, newElemId);
if (msgSpaceListElemClose(listNewTailElem) < 0) {
NZG_ERROR("msgSpaceListElemClose", newElemId);
goto ERROR;
}
/* verifier si la liste n'est pas vide... */
if ((strcmp(list->headId, list->id) == 0)
&& (strcmp(list->tailId, list->id) == 0)) {
printf("- premier elem de spaceList -\n");
// on donne a la queue l'id de l'element
strcpy(list->headId, newElemId);
strcpy(list->tailId, newElemId);
} else {
/* on informe son prédecesseur qu'il a un suivant */
listOldTailElem = msgSpaceListElemOpen(list->tailId);
if (listOldTailElem == NULL) {
NZG_ERROR("msgSpaceListElemOpen", list->tailId);
goto ERROR;
}
strcpy(listOldTailElem->next, newElemId);
if (msgSpaceListElemClose(listOldTailElem) < 0) {
NZG_ERROR("msgSpaceListElemClose", list->tailId);
goto ERROR;
}
// on donne a la queue l'id du dernier element
strcpy(list->tailId, newElemId);
}
// on incremente elemCounter
msgSpaceListClose(list);
return 0;
ERROR:
return -1;
}

View file

@ -1,18 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
int msgSpaceListClose(msgSpaceList * list)
{
msgSpaceListId spaceListId;
strcpy(spaceListId, DEFAULT_MSGSPACELISTID);
if (munmap(list, sizeof(msgSpaceList)) < 0) {
NZG_ERROR("unmap", spaceListId);
goto ERROR;
}
return 0;
ERROR:
return -1;
}

View file

@ -1,18 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
int msgSpaceListElemClose(msgSpaceListElem * listElem)
{
msgSpaceListElemId eId;
strcpy(eId, listElem->id);
if (munmap(listElem, sizeof(msgSpaceListElem)) < 0) {
NZG_ERROR("unmap", eId);
goto ERROR;
}
return 0;
ERROR:
return -1;
};

View file

@ -1,44 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
// cree un nouvel elemen
int msgSpaceListElemCreate(msgSpaceListElemId listElemId, msgSpace * space)
{
int listElemFd;
msgSpaceListElem *listElem;
msgSpaceListElemIdIntern(listElemId, space->externId);
listElemFd = shm_open(listElemId,
O_RDWR | O_CREAT | O_EXCL | O_TRUNC,
SHM_DEFAULT_MODE);
if (listElemFd == -1) {
NZG_ERROR("shm_open : msgSpaceListElem creation", listElemId);
goto ERROR;
}
if (ftruncate(listElemFd, sizeof(msgSpaceListElem)) < 0) {
NZG_ERROR("ftruncate", listElemId);
goto ERROR;
}
close(listElemFd);
listElem = msgSpaceListElemOpen(listElemId);
if (listElem == NULL) {
NZG_ERROR("msgSpaceListElemOpen", listElemId);
goto ERROR;
}
strcpy(listElem->id, listElemId);
strcpy(listElem->next, listElemId);
strcpy(listElem->spaceId, space->id);
printf("[ ListElem : id %s,next: %s, Sid: %s ]\n",
listElem->id, listElem->next, listElem->spaceId);
if (msgSpaceListElemClose(listElem) < 0) {
NZG_ERROR("msgSpaceListElemClose", listElemId);
}
return 0;
ERROR:
return -1;
};

View file

@ -1,6 +0,0 @@
#include "libnazgul.h"
// modifie l'element suivant de l'element choisi
// et le fait pointer sur un nouvel ID
int msgSpaceListElemLinkNext(msgSpaceListElemId current,
msgSpaceListElemId next);

View file

@ -1,30 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
// cree un nouvel elemen
void *msgSpaceListElemOpen(msgSpaceListElemId listElemId)
{
int listElemFd;
void *listElemAddr;
listElemFd = shm_open(listElemId, O_RDWR, SHM_DEFAULT_MODE);
if (listElemFd == -1) {
NZG_ERROR("shm_open : msgSpaceListElem open", listElemId);
goto ERROR;
}
listElemAddr = mmap(NULL,
sizeof(msgQueueElem),
PROT_READ | PROT_WRITE, MAP_SHARED, listElemFd, 0);
if (listElemAddr == MAP_FAILED) {
NZG_ERROR("mmap", listElemId);
goto ERROR;
}
close(listElemFd);
return listElemAddr;
ERROR:
return NULL;
};

View file

@ -1,85 +0,0 @@
#include "libnazgul.h"
#define DEBUG 1
int msgSpaceListFindId(msgSpaceId externId)
{
msgSpaceList *list;
msgSpaceId spaceId;
msgSpaceListElemId listHeadElemId;
msgSpaceListElemId listTailElemId;
msgSpaceListId listId;
msgSpaceIdIntern(spaceId, externId);
list = msgSpaceListOpen();
if (list == NULL) {
NZG_ERROR("msgSpaceListOpen", "");
goto ERROR;
}
if (DEBUG) {
printf("Before ListStrCpy\n");
}
strcpy(listHeadElemId, list->headId);
strcpy(listTailElemId, list->tailId);
strcpy(listId, list->id);
if (DEBUG) {
printf("After ListStrCpy\n");
}
if ((strcmp(listHeadElemId, listId) == 0)
&& strcmp(listTailElemId, listId) == 0) {
// si la liste est vide
if (DEBUG) {
printf("SpaceList : vide\n");
}
return 1;
} else {
return msgSpaceListElemFindId(listHeadElemId, spaceId);
}
if (msgSpaceListClose(list) < 0) {
NZG_ERROR("msgSpaceListClose", "");
goto ERROR;
}
return 0;
ERROR:
return -1;
}
int msgSpaceListElemFindId(msgSpaceListElemId elemId, msgSpaceId spaceId)
{
msgSpaceListElem *listElem;
msgSpaceListElemId listElemIdNext;
msgSpaceId currentElemSpaceId;
listElem = msgSpaceListElemOpen(elemId);
if (listElem == NULL) {
NZG_ERROR("msgSpaceListElemOpen", elemId);
goto ERROR;
}
strcpy(listElemIdNext, listElem->next);
strcpy(currentElemSpaceId, listElem->spaceId);
if (msgSpaceListElemClose(listElem) < 0) {
NZG_ERROR("msgSpaceListElemClose", elemId);
goto ERROR;
}
printf("Current ListElem: Next:%s, Sid:%s\n",
listElemIdNext, currentElemSpaceId);
printf("comparisons...\n");
if (strcmp(currentElemSpaceId, spaceId) == 0) {
printf("Found %s in spaceList !\n", spaceId);
return 0;
} else {
if (strcmp(listElemIdNext, elemId) == 0) {
printf("End of spaceList reached.\n");
/* fin de liste ?? */
return 1;
} else {
/* continuer sur l'element suivant */
return msgSpaceListElemFindId(listElemIdNext, spaceId);
}
}
return 0;
ERROR:
return -1;
}

View file

@ -1,73 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
int msgSpaceListInit()
{
int spaceListFd;
sem_t *spaceListSemFd;
msgSpaceList *list;
msgSpaceListSemId spaceListSemId;
msgSpaceListId spaceListId;
strcpy(spaceListSemId, DEFAULT_MSGSPACELISTSEMID);
strcpy(spaceListId, DEFAULT_MSGSPACELISTID);
/* Creation de semaphore */
spaceListSemFd = sem_open(spaceListSemId, O_CREAT | O_EXCL, 0666, 0);
if (spaceListSemFd == SEM_FAILED) {
spaceListSemFd = sem_open(spaceListSemId, O_CREAT, 0666, 0);
if (spaceListSemFd == SEM_FAILED) {
NZG_ERROR("sem_open", spaceListSemId);
goto ERROR;
}
}
/*Fait un segment de memoir partager sur espace de listelement */
spaceListFd = shm_open(spaceListId,
O_RDWR | O_CREAT | O_EXCL | O_TRUNC, 0666);
if (spaceListFd == -1) {
spaceListFd = shm_open(spaceListId, O_RDWR, 0666);
if (spaceListFd == -1) {
NZG_ERROR("shm_open", spaceListId);
goto ERROR;
} else {
close(spaceListFd);
goto EXISTING;
}
}
if (ftruncate(spaceListFd, sizeof(msgSpaceList)) < 0) {
NZG_ERROR("ftruncate", spaceListId);
goto ERROR;
}
close(spaceListFd);
list = msgSpaceListOpen();
if (list == NULL) {
NZG_ERROR("msgSpaceListOpen", "");
goto ERROR;
}
strcpy(list->id, spaceListId);
strcpy(list->headId, spaceListId);
strcpy(list->tailId, spaceListId);
if (msgSpaceListClose(list) < 0) {
NZG_ERROR("msgSpaceListClose", "");
goto ERROR;
}
if (msgSpaceListUnlock() < 0) {
NZG_ERROR("msgSpaceListUnlock", "");
goto ERROR;
}
return 0;
ERROR:
return -1;
EXISTING:
if (msgSpaceListUnlock() < 0) {
NZG_ERROR("msgSpaceListUnlock", "");
goto ERROR;
}
return 0;
};

View file

@ -1,65 +0,0 @@
#include "libnazgul.h"
// verouille le semaphore de la liste
int msgSpaceListLock()
{
sem_t *msgSpaceListSemFd;
msgSpaceListSemId spaceListSemId;
strcpy(spaceListSemId, DEFAULT_MSGSPACELISTSEMID);
/* Ouverture d'un semafore */
msgSpaceListSemFd = sem_open(spaceListSemId, O_CREAT, 0666, 1);
if (msgSpaceListSemFd == SEM_FAILED) {
NZG_ERROR("sem_open", spaceListSemId);
goto ERROR;
}
/* Pose d'un semaphore et le verrouille */
if (sem_wait(msgSpaceListSemFd) == -1) {
NZG_ERROR("sem_wait", spaceListSemId);
goto ERROR;
}
/* Ferme le semaphore */
/* if(sem_close(msgSpaceListSemFd)==-1){
NZG_ERROR("sem_close",spaceListSemId);
return -1;
} */
sem_close(msgSpaceListSemFd);
return 0;
ERROR:
return -1;
}
// deverouille le semaphore de la liste
int msgSpaceListUnlock()
{
sem_t *msgSpaceListSemFd;
msgSpaceListSemId spaceListSemId;
strcpy(spaceListSemId, DEFAULT_MSGSPACELISTSEMID);
/*Ouverture dun semaphore */
msgSpaceListSemFd = sem_open(spaceListSemId, O_CREAT, 0666, 0);
if (msgSpaceListSemFd == SEM_FAILED) {
NZG_ERROR("sem_open", spaceListSemId);
goto ERROR;
}
/*Relachement du semaphore */
if (sem_post(msgSpaceListSemFd) == -1) {
NZG_ERROR("sem_relache", spaceListSemId);
goto ERROR;
}
/* Ferme le semaphore */
if (sem_close(msgSpaceListSemFd) == -1) {
NZG_ERROR("sem_close", spaceListSemId);
goto ERROR;
}
return 0;
ERROR:
return -1;
};

View file

@ -1,30 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
void *msgSpaceListOpen()
{
int listFd;
void *listAddr;
msgSpaceListId spaceListId;
strcpy(spaceListId, DEFAULT_MSGSPACELISTID);
listFd = shm_open(spaceListId, O_RDWR, SHM_DEFAULT_MODE);
if (listFd == -1) {
NZG_ERROR("shm_open : msgSpaceList open", spaceListId);
goto ERROR;
}
listAddr = mmap(NULL,
sizeof(msgSpaceList),
PROT_READ | PROT_WRITE, MAP_SHARED, listFd, 0);
if (listAddr == MAP_FAILED) {
NZG_ERROR("mmap", spaceListId);
goto ERROR;
}
close(listFd);
return listAddr;
ERROR:
return NULL;
}

View file

@ -1,128 +0,0 @@
#include "libnazgul.h"
#define DEBUG 1
int msgSpaceListRem(msgSpaceId spaceId)
{
msgSpaceList *list;
msgSpaceListElemId listHeadElemId;
msgSpaceListElemId listTailElemId;
msgSpaceListId listId;
msgSpaceListElemId prevElemId;
msgSpaceListElemId currElemId;
msgSpaceListElemId nextElemId;
msgSpaceListElem *prevElem;
msgSpaceListElem *currElem;
msgSpaceId currSpaceId;
list = msgSpaceListOpen();
if (list == NULL) {
NZG_ERROR("msgSpaceListOpen", "");
goto ERROR;
}
if (DEBUG) {
printf("Before ListStrCpy\n");
}
strcpy(listHeadElemId, list->headId);
strcpy(listTailElemId, list->tailId);
strcpy(listId, list->id);
if (DEBUG) {
printf("After ListStrCpy\n");
}
if ((strcmp(listHeadElemId, listId) == 0)
&& strcmp(listTailElemId, listId) == 0) {
if (DEBUG) {
printf("SpaceList : vide\n");
}
return 1;
} else {
bool found = false;
strcpy(prevElemId, list->headId);
strcpy(currElemId, list->headId);
while (!found) {
printf("Recherche dans l'element %s\n", listHeadElemId);
currElem = msgSpaceListElemOpen(currElemId);
if (currElem == NULL) {
NZG_ERROR("msgSpaceListElemOpen", currElemId);
goto ERROR;
}
strcpy(nextElemId, currElem->next);
strcpy(currSpaceId, currElem->spaceId);
if (msgSpaceListElemClose(currElem) < 0) {
NZG_ERROR("msgSpaceListElemClose", currElemId);
goto ERROR;
}
if (strcmp(prevElemId, nextElemId) == 0) {
// list à 1 seul élement
if (strcmp(currSpaceId, spaceId) == 0) {
// on a trouvé l'elem
strcpy(list->headId, list->id);
strcpy(list->tailId, list->id);
// on efface
shm_unlink(currElemId);
found = true;
} else {
break;
}
} else {
// liste à plusieurs élements...
if (strcmp(currSpaceId, spaceId) == 0) {
// ca correspond
if (strcmp(prevElemId, currElemId) == 0) {
// si on est en début de liste (prev=current)
// - la tete de liste pointe sur le suivant
strcpy(list->headId,
nextElemId);
} else {
if (strcmp
(currElemId,
nextElemId) == 0) {
// si on est en find de liste (current=next)
// - on fait pointer la queue de liste sur le précédent
strcpy(list->tailId,
prevElemId);
// - on fait pointer le précédent sur lui-meme
prevElem =
msgSpaceListElemOpen
(prevElemId);
strcpy(prevElem->next,
prevElemId);
msgSpaceListElemClose
(prevElem);
} else {
// on est en milieu de liste
// - on fait pointer le précédent sur le suivant
prevElem =
msgSpaceListElemOpen
(prevElemId);
strcpy(prevElem->next,
nextElemId);
msgSpaceListElemClose
(prevElem);
}
}
// - on détruit l'actuel
shm_unlink(currElemId);
found = true;
break;
} else {
//cela ne correspond pas
//on recopie
strcpy(prevElemId, currElemId);
strcpy(currElemId, nextElemId);
}
}
}
if (msgSpaceListClose(list) < 0) {
NZG_ERROR("msgSpaceListClose", "");
goto ERROR;
}
return 0;
}
ERROR:
return -1;
}

View file

@ -1,27 +0,0 @@
#include "libnazgul.h"
#include "ids.h"
/* prototypes des fonctions annexes à ne pas exporter */
int msgSpaceIdIntern(msgSpaceId dest, const msgSpaceId src);
int msgPoolDataIdIntern(msgSpaceId dest, const msgSpaceId src);
msgSpace *msgSpaceOpen(msgSpaceId externId)
{
int shmFd;
msgSpaceId nzgId;
msgSpace *mSAddr;
if (msgSpaceIdIntern(nzgId, externId) < 0) {
return NULL;
}
if ((shmFd = shm_open(nzgId, O_RDWR, MSGSPACE_DEFAULT_MODE)) < 0) {
perror("shm_open");
return NULL;
}
mSAddr =
mmap(NULL, sizeof(msgSpace), PROT_READ | PROT_WRITE, MAP_SHARED,
shmFd, (off_t) 0);
printf("OPEN: msgSpace mapped to %p in %d\n", (void *)mSAddr,
(int)getpid());
return mSAddr;
}

View file

@ -1 +0,0 @@
#include "libnazgul.h"

0
src/types.h Normal file
View file

View file

@ -1,70 +0,0 @@
#-------------------------------------------------------------------%
#
# LIBNAZGUL : Library
#
#-------------------------------------------------------------------%
#
# IUP GMI 2, Module de Système. 2003-2004.
# Cours de J-M. Rifflet.
#
#-------------------------------------------------------------------%
#
# Projet de :
# Glenn ROLLAND,
# Sebastian SCHAWOHL,
# Rivka ZANA
#
# pour plus de détails au sujet du projet, voir le
# fichier README
#
#-------------------------------------------------------------------%
OS=$(shell uname -s)
CC=gcc
CFLAGS=-Wall -O2 -ggdb
#-O2 -ggdb
INCLUDES=-I /usr/include/ -I ../src/
LIBINC=-L /usr/lib -L ../src
BASELIBS=-lnazgul
LIBS=$(BASELIBS)
DEFS=
ifeq "HP-UX" "${OS}"
DEFS=-D_NZG_HPUX
LIBS=$(BASELIBS) -lpthread -lrt
endif
ifeq "SunOS" "${OS}"
DEFS=-D_NZG_SUNOS
LIBS=$(BASELIBS) -lrt
endif
ifeq "Linux" "${OS}"
DEFS=-D_NZG_LINUX
LIBS=$(BASELIBS) -lrt -lpthread
endif
PRJNAME=Libnazgul
GDATE := $(shell date +"-%Y-%m-%d_r%H")
GFILENAME := ../$(PRJNAME)$(GDATE).tar.bz2
LOCALDIR = $(shell pwd)
CFILES := $(shell ls *.c)
#OFILES := $(patsubst %.c,%.o,$(CFILES))
FILES := $(patsubst %.c,%,$(CFILES))
all: build
build : $(FILES)
clean:
@echo -e "Cleaning..."
@rm -f *.a
@rm -f *.o
@rm -f $(FILES)
% : %.c
$(CC) -o $* $< $(INCLUDES) $(LIBINC) $(LIBS) $(CFLAGS) $(DEFS)

View file

@ -1,66 +0,0 @@
#ifdef _NZG_HPUX
#include <sys/wait.h>
#else
#include <wait.h>
#endif
#include "libnazgul.h"
int main(void)
{
// msgSpace mS=0;
pid_t pid;
msgSpaceId testId;
msgSpace *mSPAC;
msgPool poolInfos[3];
char *montext;
poolInfos[0].bufferNb = 4;
poolInfos[0].bufferSize = 200;
poolInfos[1].bufferNb = 5;
poolInfos[1].bufferSize = 250;
poolInfos[2].bufferNb = 5;
poolInfos[2].bufferSize = 280;
sprintf(testId, "test%d", (int)getuid());
printf("RequestedId: %s\n", testId);
printf("Void size: %d\n", (int)sizeof(void));
mSPAC = msgSpaceCreate(testId, 0, 3, poolInfos);
if (mSPAC == NULL) {
NZG_ERROR("msgSpaceCreate", testId);
exit(0);
}
pid = fork();
if (pid == 0) {
mSPAC = msgSpaceOpen(testId);
sleep(5);
montext = msgAllocate(mSPAC, 2, 180, 0);
sleep(5);
montext = msgAllocate(mSPAC, 2, 170, 0);
sleep(5);
montext = msgAllocate(mSPAC, 2, 270, 0);
} else {
mSPAC = msgSpaceOpen(testId);
montext = msgAllocate(mSPAC, 2, 280, 0);
*montext = 42;
printf("### test Valeur0 %d ###\n", (int)*montext);
//sleep(2);
montext = msgAllocate(mSPAC, 2, 270, 0);
*montext = 17;
printf("### test Valeur1 %d ###\n", (int)*montext);
sleep(5);
montext = msgAllocate(mSPAC, 2, 270, 0);
msgFree(mSPAC, (void *)montext);
//msgFree(mSPAC,(void *)montext);
//msgFree(mSPAC,(void *)montext);
wait(NULL);
msgSpaceDelete(testId);
}
return 0;
}

View file

@ -1,111 +0,0 @@
#ifdef _NZG_HPUX
#include <sys/wait.h>
#else
#include <wait.h>
#endif
#include "libnazgul.h"
void usage(char *myname)
{
printf("Usage: %s [--all | msgSpaceId1 msgSpaceId2 ... ]\n", myname);
}
int about(char *spaceId)
{
msgPoolDataTabSemId ressourceSemId;
sem_t *ressourceSemFd;
int i;
msgPoolData *poolDataTab;
msgSpace *space;
int ressourceSemVal;
if (strlen(spaceId) > MSGSPACE_ID_LEN) {
//verif de la longueur
fprintf(stderr, "Too long ident : %s\n", spaceId);
goto ERROR;
} else {
int err;
msgSpaceListLock();
err = msgSpaceListFindId(spaceId);
msgSpaceListUnlock();
if (err < 1) {
if (err == 0) {
// le msgSpace existe
space = msgSpaceOpen(spaceId);
// on lit les informations sur le msgSpace
// les pool
for (i = 0; i < space->poolNb; i++) {
msgPoolSemIdIntern(ressourceSemId,
space->externId, i);
ressourceSemFd =
sem_open(ressourceSemId, O_CREAT,
SEM_DEFAULT_MODE, 0);
if (ressourceSemFd == SEM_FAILED) {
NZG_ERROR("sem_open",
ressourceSemId);
goto ERROR;
}
if (sem_getvalue
(ressourceSemFd,
&ressourceSemVal) < 0) {
NZG_ERROR("sem_getvalue",
ressourceSemId);
goto ERROR;
}
msgPoolDataTabLock(space);
poolDataTab = msgPoolDataTabOpen(space);
// donner le nombre de buffer disponibles
printf
("- %d/%d free buffers in pool #%d\n",
ressourceSemVal,
poolDataTab[i].bufferNb, i);
msgPoolDataTabClose(space, poolDataTab);
msgPoolDataTabUnlock(space);
if (sem_close(ressourceSemFd) < 0) {
NZG_ERROR("sem_getvalue",
ressourceSemId);
goto ERROR;
}
// pour chaque buffer, dire s'il est libre ou pas
// et le processus/addresse associé
}
msgSpaceClose(space);
} else {
// zut, il y a soit une erreur
NZG_ERROR("spaceListFindId : error ", spaceId);
}
} else {
// on quitte : l'element n'existe
fprintf(stderr, "Ident %s does not exist.\n", spaceId);
}
}
return 0;
ERROR:
return -1;
}
int main(int argc, char **argv)
{
printf("Args %d\n", argc);
if (argc < 2) {
usage(argv[0]);
} else {
if (argc == 2) {
if (strcmp("--all", argv[1]) == 0) {
// listing
printf("[ Listing of msgSpaces ]\n");
} else {
// only one msgSpaceId
printf("[ About %s ]\n", argv[1]);
about(argv[1]);
}
} else {
int i;
for (i = 1; i < argc; i++) {
printf("[ About %s ]\n", argv[i]);
about(argv[i]);
}
}
}
return 0;
}

View file

@ -1,56 +0,0 @@
#ifdef _NZG_HPUX
#include <sys/wait.h>
#else
#include <wait.h>
#endif
#include "libnazgul.h"
int main(void)
{
// msgSpace mS=0;
msgSpaceId testId;
msgSpace *mSPAC;
msgPool poolInfos[3];
char *montext;
poolInfos[0].bufferNb = 4;
poolInfos[0].bufferSize = 200;
poolInfos[1].bufferNb = 5;
poolInfos[1].bufferSize = 250;
sprintf(testId, "test%d", (int)getuid());
printf("RequestedId: %s\n", testId);
printf("Void size: %d\n", (int)sizeof(void));
//creation de l'espace de messages
mSPAC = msgSpaceCreate(testId, 1, 2, poolInfos);
if (mSPAC == NULL) {
NZG_ERROR("msgSpaceCreate", testId);
exit(0);
}
printf("CREATION ------------------ ok\n");
mSPAC = msgSpaceOpen(testId);
/***** TEST 1 *****/
montext = msgAllocate(mSPAC, 1, 280, 0);
*montext = 42;
printf("### test Valeur0 %d ###\n", (int)*montext);
printf("Put...");
fflush(stdout);
msgPut(mSPAC, 0, montext);
printf("put-ok\n");
printf("Get...");
fflush(stdout);
montext = msgGet(mSPAC, 0, 0);
printf("get-ok\n");
printf("### test Reception %d ###\n", (int)*montext);
msgFree(mSPAC, montext);
/***** TEST 1 *****/
msgSpaceDelete(testId);
return 0;
}

View file

@ -1,58 +0,0 @@
#ifdef _NZG_HPUX
#include <sys/wait.h>
#else
#include <wait.h>
#endif
#include "libnazgul.h"
int main(void)
{
// msgSpace mS=0;
msgSpaceId testId;
msgSpace *mSPAC;
msgPool poolInfos[3];
char *montext;
poolInfos[0].bufferNb = 4;
poolInfos[0].bufferSize = 200;
poolInfos[1].bufferNb = 5;
poolInfos[1].bufferSize = 250;
sprintf(testId, "test%d", (int)getuid());
printf("RequestedId: %s\n", testId);
printf("Void size: %d\n", (int)sizeof(void));
//creation de l'espace de messages
mSPAC = msgSpaceCreate(testId, 1, 2, poolInfos);
if (mSPAC == NULL) {
NZG_ERROR("msgSpaceCreate", testId);
exit(0);
}
printf("CREATION ------------------ ok\n");
pid_t pid = fork();
if (pid == 0) {
sleep(2);
mSPAC = msgSpaceOpen(testId);
montext = msgAllocate(mSPAC, 1, 280, 0);
*montext = 42;
printf("### test Valeur0 %d ###\n", (int)*montext);
printf("Put1...");
fflush(stdout);
msgPut(mSPAC, 0, montext);
printf("put1-ok\n");
} else {
mSPAC = msgSpaceOpen(testId);
printf("Get...");
fflush(stdout);
montext = msgGet(mSPAC, 0, 0);
printf("get-ok\n");
printf("### test Reception %d ###\n", (int)*montext);
msgFree(mSPAC, montext);
wait(NULL);
msgSpaceDelete(testId);
}
return 0;
}