glenux-school/l3.libnazgul
glenux-school/l3.libnazgul
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glenux 2004-02-23 20:00:06 +00:00 committed by Glenn Y. Rolland
parent 2eadee7153
commit 764eaa5e21
2 changed files with 24 additions and 2 deletions
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3
src/queueLock.c
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@ -1,10 +1,11 @@
#include "libnazgul.h"
#include "ids.h"
int queueLock(msgSpaceId externId,int queueIdx){
sem_t * queueSemFd;
msgQueueSemId queueSemId;
msgQueueSemIdIntern(queueSemId,externId);
msgQueueSemIdIntern(queueSemId,externId,queueIdx);
queueSemFd=sem_open(queueSemId,O_CREAT|O_EXCL,SEM_DEFAULT_MODE,1);
if(queueSemFd==SEM_FAILED){
NZG_ERROR("sem_open",queueSemId);

23
src/queueUnlock.c
View file

@ -1,5 +1,26 @@
#include "libnazgul.h"
#include "ids.h"
int queueUnlock(msgSpaceId spaceid,int queueIdx){
int queueUnlock(msgSpaceId externId,int queueIdx){
sem_t * queueSemFd;
msgQueueSemId queueSemId;
msgQueueSemIdIntern(queueSemId,externId,queueIdx);
queueSemFd=sem_open(queueSemId,O_CREAT|O_EXCL,SEM_DEFAULT_MODE,1);
if(queueSemFd==SEM_FAILED){
NZG_ERROR("sem_open",queueSemId);
goto ERROR;
}
if(sem_post(queueSemFd)==-1){
NZG_ERROR("sem_post",queueSemId);
goto ERROR;
}
sem_close(queueSemFd);
return 0;
ERROR:
return -1;
}