30 lines
572 B
C
30 lines
572 B
C
#include "libnazgul.h"
|
|
#include "ids.h"
|
|
|
|
void * msgQueueElemOpen(msgQueueElemId queueElemId){
|
|
int queueElemFd;
|
|
void * queueElemAddr;
|
|
|
|
queueElemFd=shm_open(queueElemId,O_RDWR,SHM_DEFAULT_MODE);
|
|
if (queueElemFd == -1 ) {
|
|
NZG_ERROR("shm_open : msgQueue open",queueElemId);
|
|
goto ERROR;
|
|
}
|
|
|
|
queueElemAddr=mmap(NULL,
|
|
sizeof(msgQueueElem),
|
|
PROT_READ|PROT_WRITE,
|
|
MAP_SHARED,
|
|
queueElemFd,
|
|
0);
|
|
if( queueElemAddr == MAP_FAILED ) {
|
|
NZG_ERROR("mmap",queueElemId);
|
|
goto ERROR;
|
|
}
|
|
|
|
close(queueElemFd);
|
|
return queueElemAddr;
|
|
ERROR:
|
|
return NULL;
|
|
}
|