blob: fb7d5a7e86e418e5d59b87f9ff48c4c3edaf1535 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
/*
* David Leonard <d@openbsd.org>, 1999. Public Domain.
*
* $OpenBSD: uthread_msync.c,v 1.2 1999/06/09 07:16:17 d Exp $
*/
#include <sys/types.h>
#include <sys/mman.h>
#ifdef _THREAD_SAFE
#include <pthread.h>
#include "pthread_private.h"
int
msync(addr, len, flags)
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.
*/
/* This is a cancellation point: */
_thread_enter_cancellation_point();
ret = _thread_sys_msync(addr, len, flags);
/* No longer in a cancellation point: */
_thread_leave_cancellation_point();
return (ret);
}
#endif
|
