summary.c revision 504a385858a49352bcfceca444ba4f1a7bfd20cd 
1#include <stdio.h>
2#include <stdlib.h>
3#include <sys/time.h>
4
5#include "ltrace.h"
6
7static int num_entries = 0;
8static struct entry_st {
9	char *name;
10	int count;
11	struct timeval tv;
12} * entries = NULL;
13
14static int tot_count = 0;
15static unsigned long int tot_usecs = 0;
16
17static void
18fill_struct(void * key, void * value, void * data) {
19	struct opt_c_struct * st = (struct opt_c_struct *)value;
20
21	entries = realloc(entries, (num_entries+1)*sizeof(struct entry_st));
22	if (!entries) {
23		perror("realloc()");
24		exit(1);
25	}
26	entries[num_entries].name = (char *)key;
27	entries[num_entries].count = st->count;
28	entries[num_entries].tv = st->tv;
29
30	tot_count += st->count;
31	tot_usecs += 1000000*st->tv.tv_sec;
32	tot_usecs += st->tv.tv_usec;
33
34	num_entries++;
35}
36
37static int
38compar(const void *a, const void *b) {
39	struct entry_st *en1, *en2;
40
41	en1 = (struct entry_st *)a;
42	en2 = (struct entry_st *)b;
43
44	if (en2->tv.tv_sec - en1->tv.tv_sec) {
45		return (en2->tv.tv_sec - en1->tv.tv_sec);
46	} else {
47		return (en2->tv.tv_usec - en1->tv.tv_usec);
48	}
49}
50
51void
52show_summary(void) {
53	int i;
54
55	num_entries = 0;
56	entries = NULL;
57
58	dict_apply_to_all(dict_opt_c, fill_struct, NULL);
59
60	qsort(entries, num_entries, sizeof(*entries), compar);
61
62	printf("%% time     seconds  usecs/call     calls      function\n");
63	printf( "------ ----------- ----------- --------- --------------------\n");
64	for(i=0; i<num_entries; i++) {
65		unsigned long long int c;
66		unsigned long long int p;
67		c = 1000000 * (int)entries[i].tv.tv_sec + (int)entries[i].tv.tv_usec;
68		p = 100000 * c / tot_usecs + 5;
69		printf("%3lu.%02lu %4d.%06d %11lu %9d %s\n",
70				(unsigned long int)(p / 1000),
71				(unsigned long int)((p / 10) % 100),
72				(int)entries[i].tv.tv_sec, (int)entries[i].tv.tv_usec,
73				(unsigned long int)(c / entries[i].count),
74				entries[i].count, entries[i].name);
75	}
76	printf("------ ----------- ----------- --------- --------------------\n");
77	printf("100.00 %4lu.%06lu             %9d total\n",
78			tot_usecs / 1000000, tot_usecs % 1000000, tot_count);
79}
80