l3.libnazgul/src/nzg_bufferAttachProc.c

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#include "libnazgul.h"
int msgBufferAttachProc(
msgPoolData * poolDataTabAddr,
int poolIndex,
int bufferIndex,
void * addr)
{
msgBufferInfoTabId bufferInfoTabId;
int bufferInfoTabFd;
msgBufferInfo * bufferInfoTabAddr;
int bufferInfoNb;
//r<>cuperer l'ID du BufferInfoTab;
strcpy(bufferInfoTabId, poolDataTabAddr[poolIndex].bufferInfoTabId);
bufferInfoTabFd=shm_open(bufferInfoTabId,O_RDWR,SHM_DEFAULT_MODE);
if (bufferInfoTabFd<0){
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NZG_ERROR("sem_open",bufferInfoTabId);
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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);
bufferInfoTabAddr[bufferIndex].ownerPid = getpid();
bufferInfoTabAddr[bufferIndex].addr = addr;
if (munmap(bufferInfoTabAddr,bufferInfoNb*sizeof(msgBufferInfo))< 0)
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{
NZG_ERROR("munmap",bufferInfoTabId);
return -1; }
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return 0;
}