libc/newlib/libc/sys/linux/mq_close.c
Jeff Johnston edba3282e8 2002-07-15 Jeff Johnston <jjohnstn@redhat.com>
* libc/sys/linux/Makefile.am: Add new files.
        * libc/sys/linux/Makefile.in: Regenerated.
        * libc/sys/linux/bp-sym.h: Moved to include directory.
        * libc/sys/linux/mmap.c: Add weak aliases: __mmap, __munmap, __mremap.
        * libc/sys/linux/inode.c: Set _LIBC to 1.
        * libc/sys/linux/mq_close.c: Ditto.
        * libc/sys/linux/mq_getattr.c: Ditto.
        * libc/sys/linux/mq_open.c: Ditto.
        * libc/sys/linux/mq_receive.c: Ditto.
        * libc/sys/linux/mq_send.c: Ditto.
        * libc/sys/linux/mq_setattr.c: Ditto.
        * libc/sys/linux/mq_unlink.c: Ditto.
        * libc/sys/linux/calloc.c: New file.
        * libc/sys/linux/callocr.c: Ditto.
        * libc/sys/linux/cfreer.c: Ditto.
        * libc/sys/linux/config.h: Ditto.
        * libc/sys/linux/free.c: Ditto.
        * libc/sys/linux/freer.c: Ditto.
        * libc/sys/linux/msize.c: Ditto.
        * libc/sys/linux/msizer.c: Ditto.
        * libc/sys/linux/mstats.c: Ditto.
        * libc/sys/linux/mtrim.c: Ditto.
        * libc/sys/linux/mtrimr.c: Ditto.
        * libc/sys/linux/pvallocr.c: Ditto.
        * libc/sys/linux/realloc.c: Ditto.
        * libc/sys/linux/reallocr.c: Ditto.
        * libc/sys/linux/thread-m.h: Ditto.
        * libc/sys/linux/vallocr.c: Ditto.
        * libc/sys/linux/bp-checks.h: Ditto.
        * libc/sys/linux/libc-symbols.h: Ditto.
        * libc/sys/linux/libc-tsd.h: Ditto.
        * libc/sys/linux/libintl.h: Ditto.
        * libc/sys/linux/malign.c: Ditto.
        * libc/sys/linux/malignr.c: Ditto.
        * libc/sys/linux/mallinfor.c: Ditto.
        * libc/sys/linux/malloc.c: Ditto.
        * libc/sys/linux/mallocr.c: Ditto.
        * libc/sys/linux/malloptr.c: Ditto.
        * libc/sys/linux/mallstatsr.c: Ditto.
        * libc/sys/linux/mcheck.c: Ditto.
        * libc/sys/linux/mhooks.h: Ditto.
        * libc/sys/linux/include/bp-sym.h: Ditto.
        * libc/sys/linux/include/malloc.h: Ditto.
        * libc/sys/linux/include/mcheck.h: Ditto.
        * libc/sys/linux/machine/i386/getpagesize.c: New file.
        * libc/sys/linux/machine/i386/Makefile.am: Add getpagesize.c.
        * libc/sys/linux/machine/i386/Makefile.in: Regenerated.
        * libc/sys/linux/machine/i386/sysdep.h: New file.
        * libc/sys/linux/machine/i386/weakalias.h: Add weak_function support.
        * libc/sys/linux/sys/dirent.h: Set _LIBC to 1.
	* libc/sys/linux/sys/types.h: Add new types.
2002-07-15 20:16:32 +00:00

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C

/* Copyright 2002, Red Hat Inc. */
#include <mqueue.h>
#include <errno.h>
#include <sys/sem.h>
#define _LIBC 1
#include <sys/lock.h>
#undef _LIBC
#include "mqlocal.h"
int
mq_close (mqd_t msgid)
{
struct libc_mq *info;
struct sembuf sb0 = {0, -1, 0};
int rc;
int semid;
info = __find_mq (msgid);
if (info == NULL)
{
errno = EBADF;
return -1;
}
/* lock message queue */
semid = info->semid;
rc = semop (semid, &sb0, 1);
if (rc == 0)
{
__cleanup_mq (msgid);
/* unlock message queue */
sb0.sem_op = 1;
semop (semid, &sb0, 1);
}
return rc;
}