l3.libnazgul/src/poolDataTabOpen.c
2020-03-03 23:46:32 +01:00

31 lines
622 B
C

#include "libnazgul.h"
#include "ids.h"
void * msgPoolDataTabOpen(msgSpace * space){
int poolDataTabFd;
void * poolDataTabAddr;
poolDataTabFd=shm_open(space->poolDataTabId,
O_RDWR,
MSGSPACE_DEFAULT_MODE);
if (poolDataTabFd == -1 ) {
NZG_ERROR("shm_open",space->poolDataTabId);
goto ERROR;
}
poolDataTabAddr = mmap( NULL, (space->poolNb) * sizeof( msgPoolData ),
PROT_READ | PROT_WRITE,
MAP_SHARED, poolDataTabFd, 0 );
if( poolDataTabAddr == MAP_FAILED) {
NZG_ERROR("mmap",space->poolDataTabId);
goto ERROR;
}
close(poolDataTabFd);
return poolDataTabAddr;
ERROR:
return NULL;
}