]>
Commit | Line | Data |
---|---|---|
1d09f67e TL |
1 | #include <stdio.h> |
2 | #include <stdlib.h> | |
3 | #include <sys/stat.h> | |
4 | ||
5 | #include "util.h" | |
6 | ||
7 | /* read file named FILENAME into an array of *len bytes, | |
8 | returning NULL on error */ | |
9 | uint8_t *readfile(const char *filename, size_t *len) | |
10 | { | |
11 | *len = 0; | |
12 | struct stat st; | |
13 | if (0 != stat(filename, &st)) return NULL; | |
14 | *len = st.st_size; | |
15 | FILE *f = fopen(filename, "r"); | |
16 | if (!f) return NULL; | |
17 | uint8_t *s = (uint8_t *) malloc(sizeof(uint8_t) * *len); | |
18 | if (!s) return NULL; | |
19 | if (fread(s, 1, *len, f) != *len) { | |
20 | free(s); | |
21 | s = NULL; | |
22 | } | |
23 | fclose(f); | |
24 | return s; | |
25 | } | |
26 | ||
27 | mytime gettime(void) { | |
28 | mytime t; | |
29 | gettimeofday(&t, NULL); | |
30 | return t; | |
31 | } | |
32 | ||
33 | /* time difference in seconds */ | |
34 | double elapsed(mytime t1, mytime t0) | |
35 | { | |
36 | return (double)(t1.tv_sec - t0.tv_sec) + | |
37 | (double)(t1.tv_usec - t0.tv_usec) * 1.0E-6; | |
38 | } | |
39 |