2020-03-03 22:42:59 +00:00
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#include <unistd.h> /* POSIX et al */
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#include <stdio.h>
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2004-02-16 21:25:11 +00:00
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#include <stdlib.h>
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2020-03-03 22:42:59 +00:00
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#include <string.h>
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#include <fcntl.h> /* pour O_RDWR */
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#include <sys/types.h>
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2019-09-16 14:54:52 +00:00
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#include <sys/mman.h> /* shm_open */
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2004-02-16 21:25:11 +00:00
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#include "nzg_iface.h"
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#include "nzg_proto.h"
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/*
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* spaceId : identifiant externe de l'espace de msg
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* queueNb : nombre de files de messages
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* poolNb : nombre de pool de buffers
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* queueNbCar : tableau de caracteristiques des different pool
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*/
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msgSpace * msgSpaceCreate(
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msgSpaceId spaceId, // identifiant externe de l'espace de msg
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int queueNb, // nombre de files de messages
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int poolNb, // nombre de pool de buffers
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msgPool * queueNbCar // tableau de caracteristiques des different pool
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){
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2019-09-16 14:54:52 +00:00
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int shmId;
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2020-03-03 22:42:59 +00:00
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printf("PAGESIZE : %d\n",(int)PAGESIZE);
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2019-09-16 14:43:39 +00:00
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// on cr<63>ee
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2019-09-16 14:54:52 +00:00
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msgSpaceId nzgId=msgSp2nzgId(spaceId);
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2020-03-03 22:42:59 +00:00
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if ((shmId=shm_open(nzgId,O_RDWR,MSGSPACE_DEFAULT_MODE)) < 0){
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perror("shm_open");
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return NULL;
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}
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2004-02-16 21:25:11 +00:00
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// on ajoute spaceId a la liste des msgSpace connus
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// on cr<63>e queueNb files de messages
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// on cr<63>er poolNb pool de buffers
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// on attache tout ce beau monde au spaceId
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// on renvoie un pointeur sur le bon spaceId
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msgSpace * result=NULL;
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return result;
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}
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2020-03-03 22:42:59 +00:00
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msgSpace * msgSpaceOpen(msgSpaceId spaceId){
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int shmId;
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2019-09-16 14:54:52 +00:00
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char * nzgId=msgSp2nzgId(spaceId);
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2020-03-03 22:42:59 +00:00
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if ((shmId=shm_open(nzgId,O_RDWR,MSGSPACE_DEFAULT_MODE)) < 0){
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perror("shm_open");
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return NULL;
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}
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2019-09-16 14:43:39 +00:00
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return NULL;
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}
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void msgSpaceDelete(msgSpaceId spaceId){
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2019-09-16 14:54:52 +00:00
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int shmId;
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msgSpaceId nzgId=msgSp2nzgId(spaceId);
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int er;
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if ((er=shm_unlink(nzgId))<0){
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perror("shm_unlink");
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};
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2019-09-16 14:43:39 +00:00
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}
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2019-09-16 14:54:52 +00:00
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msgSpaceId msgSp2nzgId(msgSpaceId spaceId){
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char * resNzgId;
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int slen;
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slen=strlen(spaceId);
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resNzgId = (char *)malloc(sizeof(char)*(slen+4));
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sprintf(resNzgId,"/NZG%s",(char *)spaceId);
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return ((msgSpaceId)resNzgId);
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}
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