l3.libnazgul/src/nzg_bufferInfoTabInit.c

#include "libnazgul.h"

int msgBufferInfoTabInit(msgPoolData * poolDataTabAddr,int poolIndex){
  msgBufferInfoTabId bufferInfoTabId;
int bufferInfoTabFd;
msgBufferInfo * bufferInfoTabAddr;
int bufferInfoNb;
int i;  

  //r<>cuperer 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;
}