/* * David Leonard <d@openbsd.org>, 1999. Public Domain. * * $OpenBSD: uthread_msync.c,v 1.2 1999/06/09 07:16:17 d Exp $ * * $FreeBSD: src/lib/libc_r/uthread/uthread_msync.c,v 1.5 2001/04/10 04:19:20 deischen Exp $ */ #include <sys/types.h> #include <sys/mman.h> #include <pthread.h> #include "pthread_private.h" __weak_reference(__msync, msync); int _msync(void *addr, size_t len, int flags) { int ret; ret = __sys_msync(addr, len, flags); return (ret); } int __msync(void *addr, size_t len, int flags) { int ret; /* * XXX This is quite pointless unless we know how to get the * file descriptor associated with the memory, and lock it for * write. The only real use of this wrapper is to guarantee * a cancellation point, as per the standard. sigh. */ _thread_enter_cancellation_point(); ret = _msync(addr, len, flags); _thread_leave_cancellation_point(); return ret; }