#include "libnazgul.h"

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

	//récuperer 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;
}