blob: cdbd39bc3ab1ef9ef2ccaa6a9eb0c310a6f338b3 (
plain) (
blame)
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
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
#include "stdio_impl.h"
static int __fflush_unlocked(FILE *f)
{
/* If writing, flush output */
if (f->wpos > f->wbase) {
f->write(f, 0, 0);
if (!f->wpos) return EOF;
}
/* If reading, sync position, per POSIX */
if (f->rpos < f->rend) f->seek(f, f->rpos-f->rend, SEEK_CUR);
/* Clear read and write modes */
f->wpos = f->wbase = f->wend = 0;
f->rpos = f->rend = 0;
/* Hook for special behavior on flush */
if (f->flush) f->flush(f);
return 0;
}
/* stdout.c will override this if linked */
static FILE *const __dummy = 0;
weak_alias(__dummy, __stdout_to_flush);
int fflush(FILE *f)
{
int r;
FILE *next;
if (f) {
FLOCK(f);
r = __fflush_unlocked(f);
FUNLOCK(f);
return r;
}
r = __stdout_to_flush ? fflush(__stdout_to_flush) : 0;
OFLLOCK();
for (f=ofl_head; f; f=next) {
FLOCK(f);
//OFLUNLOCK();
r |= __fflush_unlocked(f);
//OFLLOCK();
next = f->next;
FUNLOCK(f);
}
OFLUNLOCK();
return r;
}
weak_alias(__fflush_unlocked, fflush_unlocked);
|
