blob: c1aaed323428b00c3bc20e174a94dc05f11ae8c9 (
plain)
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
|
/*
* !!! DO NOT EDIT DIRECTLY !!!
* This file was automatically generated from the following template:
*
* src/subsys/ngx_subsys_lua_exception.c.tt2
*/
/*
* Copyright (C) Xiaozhe Wang (chaoslawful)
* Copyright (C) Yichun Zhang (agentzh)
*/
#ifndef DDEBUG
#define DDEBUG 0
#endif
#include "ddebug.h"
#include "ngx_stream_lua_exception.h"
#include "ngx_stream_lua_util.h"
/* longjmp mark for restoring nginx execution after Lua VM crashing */
jmp_buf ngx_stream_lua_exception;
/**
* Override default Lua panic handler, output VM crash reason to nginx error
* log, and restore execution to the nearest jmp-mark.
*
* @param L Lua state pointer
* @retval Long jump to the nearest jmp-mark, never returns.
* @note nginx request pointer should be stored in Lua thread's globals table
* in order to make logging working.
* */
int
ngx_stream_lua_atpanic(lua_State *L)
{
#ifdef NGX_LUA_ABORT_AT_PANIC
abort();
#else
u_char *s = NULL;
size_t len = 0;
if (lua_type(L, -1) == LUA_TSTRING) {
s = (u_char *) lua_tolstring(L, -1, &len);
}
if (s == NULL) {
s = (u_char *) "unknown reason";
len = sizeof("unknown reason") - 1;
}
ngx_log_stderr(0, "lua atpanic: Lua VM crashed, reason: %*s", len, s);
ngx_quit = 1;
/* restore nginx execution */
NGX_LUA_EXCEPTION_THROW(1);
/* impossible to reach here */
#endif
}
/* vi:set ft=c ts=4 sw=4 et fdm=marker: */
|
