1 | #include "stdio_impl.h" |
2 | #include <string.h> |
3 | |
4 | #define MIN(a,b)((a)<(b) ? (a) : (b)) ((a)<(b) ? (a) : (b)) |
5 | |
6 | size_t fread(void *restrict destv, size_t size, size_t nmemb, FILE *restrict f) |
7 | { |
8 | unsigned char *dest = destv; |
9 | size_t len = size*nmemb, l = len, k; |
10 | if (!size) nmemb = 0; |
| |
| |
11 | |
12 | FLOCK(f)int __need_unlock = ((f)->lock>=0 ? __lockfile((f)) : 0 ); |
13 | |
14 | f->mode |= f->mode-1; |
15 | |
16 | if (f->rend - f->rpos > 0) { |
| |
17 | |
18 | k = MIN(f->rend - f->rpos, l)((f->rend - f->rpos)<(l) ? (f->rend - f->rpos) : (l)); |
19 | memcpy(dest, f->rpos, k); |
20 | f->rpos += k; |
21 | dest += k; |
22 | l -= k; |
23 | } |
24 | |
25 | |
26 | for (; l; l-=k, dest+=k) { |
| 4 | | Loop condition is true. Entering loop body | |
|
27 | k = __toread(f) ? 0 : f->read(f, dest, l); |
| |
28 | if (k+1<=1) { |
| |
29 | FUNLOCK(f)if (__need_unlock) __unlockfile((f)); else; |
30 | return (len-l)/size; |
| |
31 | } |
32 | } |
33 | |
34 | FUNLOCK(f)if (__need_unlock) __unlockfile((f)); else; |
35 | return nmemb; |
36 | } |
37 | |
38 | weak_alias(fread, fread_unlocked)extern __typeof(fread) fread_unlocked __attribute__((weak, alias ("fread"))); |