8abe2a2d86
just use _foo() <-- foo(). In the case of a libpthread that doesn't do call conversion (such as linuxthreads and our upcoming libpthread), this is adequate. In the case of libc_r, we still need three names, which are now _thread_sys_foo() <-- _foo() <-- foo(). Convert all internal libc usage of: aio_suspend(), close(), fsync(), msync(), nanosleep(), open(), fcntl(), read(), and write() to _foo() instead of foo(). Remove all internal libc usage of: creat(), pause(), sleep(), system(), tcdrain(), wait(), and waitpid(). Make thread cancellation fully POSIX-compliant. Suggested by: deischen
43 lines
820 B
C
43 lines
820 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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_msync(void *addr, size_t len, int flags)
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{
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int ret;
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ret = _thread_sys_msync(addr, len, flags);
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return (ret);
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}
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int
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msync(void *addr, size_t len, 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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_thread_enter_cancellation_point();
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ret = _msync(addr, len, flags);
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_thread_leave_cancellation_point();
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return ret;
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}
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#endif
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