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parent
eb9c82b088
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2 changed files with 24 additions and 2 deletions
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@ -1,10 +1,11 @@
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#include "libnazgul.h"
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#include "libnazgul.h"
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#include "ids.h"
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int queueLock(msgSpaceId externId,int queueIdx){
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int queueLock(msgSpaceId externId,int queueIdx){
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sem_t * queueSemFd;
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sem_t * queueSemFd;
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msgQueueSemId queueSemId;
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msgQueueSemId queueSemId;
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msgQueueSemIdIntern(queueSemId,externId);
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msgQueueSemIdIntern(queueSemId,externId,queueIdx);
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queueSemFd=sem_open(queueSemId,O_CREAT|O_EXCL,SEM_DEFAULT_MODE,1);
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queueSemFd=sem_open(queueSemId,O_CREAT|O_EXCL,SEM_DEFAULT_MODE,1);
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if(queueSemFd==SEM_FAILED){
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if(queueSemFd==SEM_FAILED){
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NZG_ERROR("sem_open",queueSemId);
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NZG_ERROR("sem_open",queueSemId);
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@ -1,5 +1,26 @@
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#include "libnazgul.h"
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#include "libnazgul.h"
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#include "ids.h"
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int queueUnlock(msgSpaceId spaceid,int queueIdx){
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int queueUnlock(msgSpaceId externId,int queueIdx){
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sem_t * queueSemFd;
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msgQueueSemId queueSemId;
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msgQueueSemIdIntern(queueSemId,externId,queueIdx);
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queueSemFd=sem_open(queueSemId,O_CREAT|O_EXCL,SEM_DEFAULT_MODE,1);
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if(queueSemFd==SEM_FAILED){
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NZG_ERROR("sem_open",queueSemId);
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goto ERROR;
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}
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if(sem_post(queueSemFd)==-1){
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NZG_ERROR("sem_post",queueSemId);
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goto ERROR;
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}
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sem_close(queueSemFd);
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return 0;
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ERROR:
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return -1;
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return -1;
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}
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}
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