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
|
#include "stdio_impl.h"
size_t __fwritex(const unsigned char *restrict s, size_t l, FILE *restrict f)
{
size_t i=0;
if (!f->wend && __towrite(f)) return 0;
if (l > f->wend - f->wpos) return f->write(f, s, l);
if (f->lbf >= 0) {
/* Match /^(.*\n|)/ */
for (i=l; i && s[i-1] != '\n'; i--);
if (i) {
if (f->write(f, s, i) < i)
return i;
s += i;
l -= i;
}
}
memcpy(f->wpos, s, l);
f->wpos += l;
return l+i;
}
size_t fwrite(const void *restrict src, size_t size, size_t nmemb, FILE *restrict f)
{
size_t k, l = size*nmemb;
if (!l) return l;
FLOCK(f);
k = __fwritex(src, l, f);
FUNLOCK(f);
return k==l ? nmemb : k/size;
}
weak_alias(fwrite, fwrite_unlocked);
|