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