f560c4e709
the _libc_*() entry points and add *() weak aliases. This will all change for the better when libc_r becomes libpthread.
43 lines
859 B
C
43 lines
859 B
C
/*
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* David Leonard <d@openbsd.org>, 1999. Public Domain.
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*
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* $OpenBSD: uthread_msync.c,v 1.2 1999/06/09 07:16:17 d Exp $
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*
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* $FreeBSD$
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*/
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#include <sys/types.h>
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#include <sys/mman.h>
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#ifdef _THREAD_SAFE
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#include <pthread.h>
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#include "pthread_private.h"
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int
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_libc_msync(addr, len, flags)
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void *addr;
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size_t len;
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int flags;
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{
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int ret;
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/*
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* XXX This is quite pointless unless we know how to get the
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* file descriptor associated with the memory, and lock it for
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* write. The only real use of this wrapper is to guarantee
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* a cancellation point, as per the standard. sigh.
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*/
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/* This is a cancellation point: */
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_thread_enter_cancellation_point();
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ret = _thread_sys_msync(addr, len, flags);
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/* No longer in a cancellation point: */
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_thread_leave_cancellation_point();
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return (ret);
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}
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__weak_reference(_libc_msync, msync);
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#endif
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