1#include "stdio_impl.h"
2#include <string.h>
3
4#define MIN(a,b) ((a)<(b) ? (a) : (b))
5
6size_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);
13
14	f->mode |= f->mode-1;
15
16	if (f->rend - f->rpos > 0) {
17		/* First exhaust the buffer. */
18		k = MIN(f->rend - f->rpos, l);
19		memcpy(dest, f->rpos, k);
20		f->rpos += k;
21		dest += k;
22		l -= k;
23	}
24
25	/* Read the remainder directly */
26	for (; l; l-=k, dest+=k) {
27		k = __toread(f) ? 0 : f->read(f, dest, l);
28		if (k+1<=1) {
29			FUNLOCK(f);
30			return (len-l)/size;
31		}
32	}
33
34	FUNLOCK(f);
35	return nmemb;
36}
37
38weak_alias(fread, fread_unlocked);
39