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
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/*
* Copyright 2016 Garrett D'Amore <garrett@damore.org>
*
* This software is supplied under the terms of the MIT License, a
* copy of which should be located in the distribution where this
* file was obtained (LICENSE.txt). A copy of the license may also be
* found online at https://opensource.org/licenses/MIT.
*/
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#ifdef NNG_HAVE_BACKTRACE
#include <execinfo.h>
#endif
#include "core/nng_impl.h"
/*
* Panic handling.
*/
static void
show_backtrace(void)
{
#if NNG_HAVE_BACKTRACE
void *frames[50];
int nframes;
char **lines;
int i;
nframes = backtrace(frames, sizeof (frames) / sizeof (frames[0]));
if (nframes > 1) {
lines = backtrace_symbols(frames, nframes);
if (lines == NULL) {
return;
}
for (i = 1; i < nframes; i++) {
nni_println(lines[i]);
}
}
#endif
}
/*
* nni_panic shows a panic message, a possible stack bracktrace, then aborts
* the process/program. This should only be called when a condition arises
* that should not be possible, e.g. a programming assertion failure. It should
* not be called in situations such as ENOMEM, as nni_panic is fairly rude
* to any application it may be called from within.
*/
void
nni_panic(const char *fmt, ...)
{
char buf[128];
char fbuf[128];
va_list va;
va_start(va, fmt);
(void) nni_snprintf(fbuf, sizeof (buf), "panic: %s", fmt);
(void) nni_vsnprintf(buf, sizeof (buf), fbuf, va);
va_end(va);
nni_println(buf);
nni_println("This message is indicative of a BUG.");
nni_println("Report this at http://github.com/nanomsg/nanomsg");
show_backtrace();
nni_plat_abort();
}
void
nni_println(const char *msg)
{
/* TODO: support redirection of this later. */
nni_plat_println(msg);
}
|
