44 lines
707 B
C
44 lines
707 B
C
#define _SYSTEM 1
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#include <sys/cdefs.h>
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#include <lib.h>
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#include "namespace.h"
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#include <minix/rs.h>
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#include <sys/types.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <stdlib.h>
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#include <errno.h>
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#ifdef __weak_alias
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__weak_alias(shmget, _shmget)
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#endif
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static int get_ipc_endpt(endpoint_t *pt)
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{
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return minix_rs_lookup("ipc", pt);
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}
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/* Get shared memory segment. */
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int shmget(key_t key, size_t size, int shmflg)
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{
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message m;
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endpoint_t ipc_pt;
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int r;
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if (get_ipc_endpt(&ipc_pt) != OK) {
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errno = ENOSYS;
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return -1;
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}
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m.SHMGET_KEY = key;
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m.SHMGET_SIZE = size;
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m.SHMGET_FLAG = shmflg;
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r = _syscall(ipc_pt, IPC_SHMGET, &m);
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if (r != OK)
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return r;
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return m.SHMGET_RETID;
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}
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