29 lines
580 B
C
29 lines
580 B
C
#include "libnazgul.h"
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#include "ids.h"
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void *msgQueueElemOpen(msgQueueElemId queueElemId)
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{
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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, queueElemFd, 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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