#include "libnazgul.h"

int msgBufferGetProcAttach(msgPoolData * poolDataTabAddr,
			   int poolNb,
			   int *poolIndex, int *bufferIndex, void *addr)
{
	msgBufferInfoTabId bufferInfoTabId;
	int bufferInfoTabFd;
	msgBufferInfo *bufferInfoTabAddr;
	int bufferInfoNb;

	bool found = false;
	int pIdx = 0;
	int bIdx;
	while ((!found) && (pIdx < poolNb)) {
		/* Pour chaque pool */
		//récuperer l'ID du BufferInfoTab;
		strcpy(bufferInfoTabId, poolDataTabAddr[pIdx].bufferInfoTabId);
		bufferInfoNb = poolDataTabAddr[pIdx].bufferNb;

		bufferInfoTabFd =
		    shm_open(bufferInfoTabId, O_RDWR, SHM_DEFAULT_MODE);
		if (bufferInfoTabFd < 0) {
			NZG_ERROR("shm_open", bufferInfoTabId);
			return -1;
		}

	/** on regarde dans le tableau d'infos de buffer **/
		bufferInfoTabAddr =
		    mmap(NULL, bufferInfoNb * sizeof(msgBufferInfo), PROT_READ,
			 MAP_SHARED, bufferInfoTabFd, (off_t) 0);

		/* on cherche dans chacun des buffers */
		bIdx = 0;
		while ((!found) && bIdx < bufferInfoNb) {
			if (bufferInfoTabAddr[bIdx].addr == addr) {
				found = true;
				(*bufferIndex) = bIdx;
			};
			bIdx++;
		}
		if (found) {
			(*poolIndex) = pIdx;
		}
		/* on détache le morceau de mémoire */
		if (munmap
		    (bufferInfoTabAddr,
		     bufferInfoNb * sizeof(msgBufferInfo)) < 0) {
			NZG_ERROR("munmap", bufferInfoTabId);
			return -1;
		}
		close(bufferInfoTabFd);
		pIdx++;
	}

	if (found) {
		return 0;
	} else {
		return -1;
	}
}