File: util.c

package info (click to toggle)
mame 0.228%2Bdfsg.1-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 956,280 kB
  • sloc: cpp: 4,712,769; xml: 1,946,353; ansic: 829,986; sh: 49,187; lisp: 18,100; python: 17,897; makefile: 10,815; cs: 10,047; javascript: 8,196; yacc: 7,565; java: 7,151; objc: 5,791; asm: 4,639; perl: 2,850; ada: 1,681; lex: 1,174; pascal: 1,139; ruby: 317; awk: 35
file content (39 lines) | stat: -rw-r--r-- 806 bytes parent folder | download | duplicates (21) 
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
38
39
 
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>

#include "util.h"

/* read file named FILENAME into an array of *len bytes,
   returning NULL on error */
uint8_t *readfile(const char *filename, size_t *len)
{
	 *len = 0;
	 struct stat st;
	 if (0 != stat(filename, &st)) return NULL;
	 *len = st.st_size;
	 FILE *f = fopen(filename, "r");
	 if (!f) return NULL;
	 uint8_t *s = (uint8_t *) malloc(sizeof(uint8_t) * *len);
	 if (!s) return NULL;
	 if (fread(s, 1, *len, f) != *len) {
		  free(s);
		  s = NULL;
	 }
	 fclose(f);
	 return s;
}

mytime gettime(void) {
	 mytime t;
	 gettimeofday(&t, NULL);
	 return t;
}

/* time difference in seconds */
double elapsed(mytime t1, mytime t0)
{
     return (double)(t1.tv_sec - t0.tv_sec) +
          (double)(t1.tv_usec - t0.tv_usec) * 1.0E-6;
}