27 lines
682 B
C
27 lines
682 B
C
#include "libnazgul.h"
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#include "ids.h"
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/* prototypes des fonctions annexes à ne pas exporter */
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int msgSpaceIdIntern(msgSpaceId dest,const msgSpaceId src );
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int msgPoolDataIdIntern(msgSpaceId dest,const msgSpaceId src );
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msgSpace * msgSpaceOpen(msgSpaceId externId){
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int shmFd;
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msgSpaceId nzgId;
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msgSpace * mSAddr;
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if (msgSpaceIdIntern(nzgId,externId) < 0){
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return NULL;
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}
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if ((shmFd=shm_open(nzgId,O_RDWR,MSGSPACE_DEFAULT_MODE)) < 0){
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perror("shm_open");
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return NULL;
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}
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mSAddr=mmap(NULL,sizeof(msgSpace),PROT_READ|PROT_WRITE,MAP_SHARED,shmFd,(off_t)0);
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printf( "OPEN: msgSpace mapped to 0x%08x in %d\n", (int)mSAddr,(int)getpid());
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return mSAddr;
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}
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