l3.libnazgul/src/nzg_create.c

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#include "nzg_global.h"
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#include "nzg_iface.h"
#include "nzg_proto.h"
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#include <sys/types.h>
#include <sys/mman.h>
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/*
* 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
){
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int shmId;
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printf("PAGESIZE : %d\n",(int)PAGESIZE);
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// on cr<63>ee
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msgSpaceId nzgId=msgSp2nzgId(spaceId);
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if ((shmId=shm_open(nzgId,O_RDWR,MSGSPACE_DEFAULT_MODE)) < 0){
perror("shm_open");
return NULL;
}
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// on ajoute spaceId a la liste des msgSpace connus
// on cr<63>e queueNb files de messages
// on cr<63>er 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;
}
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msgSpace * msgSpaceOpen(msgSpaceId spaceId){
int shmId;
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char * nzgId=msgSp2nzgId(spaceId);
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if ((shmId=shm_open(nzgId,O_RDWR,MSGSPACE_DEFAULT_MODE)) < 0){
perror("shm_open");
return NULL;
}
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return NULL;
}
void msgSpaceDelete(msgSpaceId spaceId){
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//int shmId;
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msgSpaceId nzgId=msgSp2nzgId(spaceId);
int er;
if ((er=shm_unlink(nzgId))<0){
perror("shm_unlink");
};
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}
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msgSpaceId msgSp2nzgId(msgSpaceId spaceId){
char * resNzgId;
int slen;
slen=strlen(spaceId);
resNzgId = (char *)malloc(sizeof(char)*(slen+4));
sprintf(resNzgId,"/NZG%s",(char *)spaceId);
return ((msgSpaceId)resNzgId);
}