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