source:
EcnlProtoTool/trunk/musl-1.1.18/src/stdio/fwrite.c
Last change on this file was 444, checked in by , 4 years ago | |
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File size: 732 bytes |
Rev | Line | |
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[444] | 1 | #include "stdio_impl.h" |
2 | #include <string.h> | |
3 | ||
4 | size_t __fwritex(const unsigned char *restrict s, size_t l, FILE *restrict f) | |
5 | { | |
6 | size_t i=0; | |
7 | ||
8 | if (!f->wend && __towrite(f)) return 0; | |
9 | ||
10 | if (l > f->wend - f->wpos) return f->write(f, s, l); | |
11 | ||
12 | if (f->lbf >= 0) { | |
13 | /* Match /^(.*\n|)/ */ | |
14 | for (i=l; i && s[i-1] != '\n'; i--); | |
15 | if (i) { | |
16 | size_t n = f->write(f, s, i); | |
17 | if (n < i) return n; | |
18 | s += i; | |
19 | l -= i; | |
20 | } | |
21 | } | |
22 | ||
23 | memcpy(f->wpos, s, l); | |
24 | f->wpos += l; | |
25 | return l+i; | |
26 | } | |
27 | ||
28 | size_t fwrite(const void *restrict src, size_t size, size_t nmemb, FILE *restrict f) | |
29 | { | |
30 | size_t k, l = size*nmemb; | |
31 | if (!size) nmemb = 0; | |
32 | FLOCK(f); | |
33 | k = __fwritex(src, l, f); | |
34 | FUNLOCK(f); | |
35 | return k==l ? nmemb : k/size; | |
36 | } | |
37 | ||
38 | weak_alias(fwrite, fwrite_unlocked); |
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