summary.c revision 7dd291227d81d3bc32c67e90fb7f7c51c76f39dd 
1#if HAVE_CONFIG_H
2#include "config.h"
3#endif
4
5#include <stdio.h>
6#include <stdlib.h>
7#include <sys/time.h>
8
9#include "ltrace.h"
10#include "options.h"
11
12#ifdef USE_DEMANGLE
13#include "demangle.h"
14#endif
15
16static int num_entries = 0;
17static struct entry_st {
18	char *name;
19	int count;
20	struct timeval tv;
21} *entries = NULL;
22
23static int tot_count = 0;
24static unsigned long int tot_usecs = 0;
25
26static void fill_struct(void *key, void *value, void *data)
27{
28	struct opt_c_struct *st = (struct opt_c_struct *)value;
29
30	entries = realloc(entries, (num_entries + 1) * sizeof(struct entry_st));
31	if (!entries) {
32		perror("realloc()");
33		exit(1);
34	}
35	entries[num_entries].name = (char *)key;
36	entries[num_entries].count = st->count;
37	entries[num_entries].tv = st->tv;
38
39	tot_count += st->count;
40	tot_usecs += 1000000 * st->tv.tv_sec;
41	tot_usecs += st->tv.tv_usec;
42
43	num_entries++;
44}
45
46static int compar(const void *a, const void *b)
47{
48	struct entry_st *en1, *en2;
49
50	en1 = (struct entry_st *)a;
51	en2 = (struct entry_st *)b;
52
53	if (en2->tv.tv_sec - en1->tv.tv_sec) {
54		return (en2->tv.tv_sec - en1->tv.tv_sec);
55	} else {
56		return (en2->tv.tv_usec - en1->tv.tv_usec);
57	}
58}
59
60void show_summary(void)
61{
62	int i;
63
64	num_entries = 0;
65	entries = NULL;
66
67	dict_apply_to_all(dict_opt_c, fill_struct, NULL);
68
69	qsort(entries, num_entries, sizeof(*entries), compar);
70
71	fprintf(output, "%% time     seconds  usecs/call     calls      function\n");
72	fprintf(output, "------ ----------- ----------- --------- --------------------\n");
73	for (i = 0; i < num_entries; i++) {
74		unsigned long long int c;
75		unsigned long long int p;
76		c = 1000000 * (int)entries[i].tv.tv_sec +
77		    (int)entries[i].tv.tv_usec;
78		p = 100000 * c / tot_usecs + 5;
79		fprintf(output, "%3lu.%02lu %4d.%06d %11lu %9d %s\n",
80		       (unsigned long int)(p / 1000),
81		       (unsigned long int)((p / 10) % 100),
82		       (int)entries[i].tv.tv_sec, (int)entries[i].tv.tv_usec,
83		       (unsigned long int)(c / entries[i].count),
84		       entries[i].count,
85#ifdef USE_DEMANGLE
86		       opt_C ? my_demangle(entries[i].name) :
87#endif
88		       entries[i].name);
89	}
90	fprintf(output, "------ ----------- ----------- --------- --------------------\n");
91	fprintf(output, "100.00 %4lu.%06lu             %9d total\n", tot_usecs / 1000000,
92	       tot_usecs % 1000000, tot_count);
93}
94