prosody
0e94f89d0e62
util-src/signal.c

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody

Annotate

util-src/signal.c @ 6412:0e94f89d0e62

util-src/*.c: Use the more concise lua_setfield
author Kim Alvefur <zash@zash.se>
date Wed, 17 Sep 2014 02:23:17 +0200
parent 6411:6c8f6364bc48
child 6413:a552f4170aed
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
988
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
1 /*
2405
88f73ee1c46f util.signal: Update header comment for new filename
Matthew Wild <mwild1@gmail.com>
parents: 2343
diff changeset
2 * signal.c -- Signal Handler Library for Lua
988
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
3 *
2431
c4d32b35fe60 util.signal: Update version in header, and author's email
Matthew Wild <mwild1@gmail.com>
parents: 2430
diff changeset
4 * Version: 1.000+changes
988
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
5 *
2431
c4d32b35fe60 util.signal: Update version in header, and author's email
Matthew Wild <mwild1@gmail.com>
parents: 2430
diff changeset
6 * Copyright (C) 2007 Patrick J. Donnelly (batrick@batbytes.com)
988
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
7 *
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
8 * This software is distributed under the same license as Lua 5.0:
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
9 *
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
10 * Permission is hereby granted, free of charge, to any person obtaining a
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
11 * copy of this software and associated documentation files (the "Software"),
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
12 * to deal in the Software without restriction, including without limitation
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
13 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
14 * and/or sell copies of the Software, and to permit persons to whom the
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
15 * Software is furnished to do so, subject to the following conditions:
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
16 *
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
17 * The above copyright notice and this permission notice shall be included
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
18 * in all copies or substantial portions of the Software.
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
19 *
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
21 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
23 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
24 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
25 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
26 * OTHER DEALINGS IN THE SOFTWARE.
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
27 */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
28
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
29 #include <signal.h>
2459
66f60e69567b util.signal: Using stdlib.h instead of malloc.h.
Tobias Markmann <tm@ayena.de>
parents: 2432
diff changeset
30 #include <stdlib.h>
988
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
31
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
32 #include "lua.h"
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
33 #include "lauxlib.h"
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
34
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
35 #ifndef lsig
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
36
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
37 #define lsig
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
38
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
39 struct lua_signal
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
40 {
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
41 char *name; /* name of the signal */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
42 int sig; /* the signal */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
43 };
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
44
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
45 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
46
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
47 #define LUA_SIGNAL "lua_signal"
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
48
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
49 static const struct lua_signal lua_signals[] = {
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
50 /* ANSI C signals */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
51 #ifdef SIGABRT
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
52 {"SIGABRT", SIGABRT},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
53 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
54 #ifdef SIGFPE
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
55 {"SIGFPE", SIGFPE},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
56 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
57 #ifdef SIGILL
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
58 {"SIGILL", SIGILL},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
59 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
60 #ifdef SIGINT
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
61 {"SIGINT", SIGINT},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
62 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
63 #ifdef SIGSEGV
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
64 {"SIGSEGV", SIGSEGV},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
65 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
66 #ifdef SIGTERM
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
67 {"SIGTERM", SIGTERM},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
68 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
69 /* posix signals */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
70 #ifdef SIGHUP
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
71 {"SIGHUP", SIGHUP},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
72 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
73 #ifdef SIGQUIT
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
74 {"SIGQUIT", SIGQUIT},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
75 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
76 #ifdef SIGTRAP
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
77 {"SIGTRAP", SIGTRAP},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
78 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
79 #ifdef SIGKILL
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
80 {"SIGKILL", SIGKILL},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
81 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
82 #ifdef SIGUSR1
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
83 {"SIGUSR1", SIGUSR1},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
84 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
85 #ifdef SIGUSR2
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
86 {"SIGUSR2", SIGUSR2},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
87 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
88 #ifdef SIGPIPE
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
89 {"SIGPIPE", SIGPIPE},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
90 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
91 #ifdef SIGALRM
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
92 {"SIGALRM", SIGALRM},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
93 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
94 #ifdef SIGCHLD
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
95 {"SIGCHLD", SIGCHLD},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
96 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
97 #ifdef SIGCONT
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
98 {"SIGCONT", SIGCONT},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
99 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
100 #ifdef SIGSTOP
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
101 {"SIGSTOP", SIGSTOP},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
102 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
103 #ifdef SIGTTIN
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
104 {"SIGTTIN", SIGTTIN},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
105 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
106 #ifdef SIGTTOU
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
107 {"SIGTTOU", SIGTTOU},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
108 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
109 /* some BSD signals */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
110 #ifdef SIGIOT
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
111 {"SIGIOT", SIGIOT},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
112 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
113 #ifdef SIGBUS
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
114 {"SIGBUS", SIGBUS},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
115 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
116 #ifdef SIGCLD
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
117 {"SIGCLD", SIGCLD},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
118 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
119 #ifdef SIGURG
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
120 {"SIGURG", SIGURG},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
121 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
122 #ifdef SIGXCPU
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
123 {"SIGXCPU", SIGXCPU},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
124 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
125 #ifdef SIGXFSZ
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
126 {"SIGXFSZ", SIGXFSZ},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
127 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
128 #ifdef SIGVTALRM
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
129 {"SIGVTALRM", SIGVTALRM},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
130 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
131 #ifdef SIGPROF
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
132 {"SIGPROF", SIGPROF},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
133 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
134 #ifdef SIGWINCH
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
135 {"SIGWINCH", SIGWINCH},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
136 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
137 #ifdef SIGPOLL
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
138 {"SIGPOLL", SIGPOLL},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
139 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
140 #ifdef SIGIO
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
141 {"SIGIO", SIGIO},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
142 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
143 /* add odd signals */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
144 #ifdef SIGSTKFLT
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
145 {"SIGSTKFLT", SIGSTKFLT}, /* stack fault */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
146 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
147 #ifdef SIGSYS
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
148 {"SIGSYS", SIGSYS},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
149 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
150 {NULL, 0}
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
151 };
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
152
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
153 static lua_State *Lsig = NULL;
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
154 static lua_Hook Hsig = NULL;
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
155 static int Hmask = 0;
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
156 static int Hcount = 0;
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
157
2430
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
158 static struct signal_event
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
159 {
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
160 int Nsig;
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
161 struct signal_event *next_event;
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
162 } *signal_queue = NULL;
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
163
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
164 static struct signal_event *last_event = NULL;
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
165
988
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
166 static void sighook(lua_State *L, lua_Debug *ar)
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
167 {
3284
867d6413fe0a util.signal: Moved a variable declaration to the top of a function, for ANSI C compliance.
Waqas Hussain <waqas20@gmail.com>
parents: 3283
diff changeset
168 struct signal_event *event;
2432
1e045b3e9dce util.signal: Restore the old debug hook earlier, just in case we receive another signal between clearing the signal queue and restoring it
Matthew Wild <mwild1@gmail.com>
parents: 2431
diff changeset
169 /* restore the old hook */
1e045b3e9dce util.signal: Restore the old debug hook earlier, just in case we receive another signal between clearing the signal queue and restoring it
Matthew Wild <mwild1@gmail.com>
parents: 2431
diff changeset
170 lua_sethook(L, Hsig, Hmask, Hcount);
1e045b3e9dce util.signal: Restore the old debug hook earlier, just in case we receive another signal between clearing the signal queue and restoring it
Matthew Wild <mwild1@gmail.com>
parents: 2431
diff changeset
171
988
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
172 lua_pushstring(L, LUA_SIGNAL);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
173 lua_gettable(L, LUA_REGISTRYINDEX);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
174
2430
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
175 while((event = signal_queue))
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
176 {
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
177 lua_pushnumber(L, event->Nsig);
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
178 lua_gettable(L, -2);
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
179 lua_call(L, 0, 0);
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
180 signal_queue = event->next_event;
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
181 free(event);
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
182 };
988
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
183
2430
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
184 lua_pop(L, 1); /* pop lua_signal table */
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
185
988
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
186 }
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
187
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
188 static void handle(int sig)
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
189 {
2430
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
190 if(!signal_queue)
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
191 {
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
192 /* Store the existing debug hook (if any) and its parameters */
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
193 Hsig = lua_gethook(Lsig);
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
194 Hmask = lua_gethookmask(Lsig);
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
195 Hcount = lua_gethookcount(Lsig);
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
196
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
197 signal_queue = malloc(sizeof(struct signal_event));
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
198 signal_queue->Nsig = sig;
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
199 signal_queue->next_event = NULL;
988
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
200
2430
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
201 last_event = signal_queue;
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
202
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
203 /* Set our new debug hook */
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
204 lua_sethook(Lsig, sighook, LUA_MASKCALL | LUA_MASKRET | LUA_MASKCOUNT, 1);
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
205 }
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
206 else
988
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
207 {
2430
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
208 last_event->next_event = malloc(sizeof(struct signal_event));
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
209 last_event->next_event->Nsig = sig;
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
210 last_event->next_event->next_event = NULL;
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
211
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
212 last_event = last_event->next_event;
69d377c84fe3 util.signal: Queue up multiple signals, instead of trampling on the previous debug hook (and never clearing our own)
Matthew Wild <mwild1@gmail.com>
parents: 2405
diff changeset
213 }
988
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
214 }
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
215
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
216 /*
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
217 * l_signal == signal(signal [, func [, chook]])
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
218 *
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
219 * signal = signal number or string
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
220 * func = Lua function to call
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
221 * chook = catch within C functions
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
222 * if caught, Lua function _must_
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
223 * exit, as the stack is most likely
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
224 * in an unstable state.
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
225 */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
226
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
227 static int l_signal(lua_State *L)
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
228 {
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
229 int args = lua_gettop(L);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
230 int t, sig; /* type, signal */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
231
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
232 /* get type of signal */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
233 luaL_checkany(L, 1);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
234 t = lua_type(L, 1);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
235 if (t == LUA_TNUMBER)
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
236 sig = (int) lua_tonumber(L, 1);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
237 else if (t == LUA_TSTRING)
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
238 {
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
239 lua_pushstring(L, LUA_SIGNAL);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
240 lua_gettable(L, LUA_REGISTRYINDEX);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
241 lua_pushvalue(L, 1);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
242 lua_gettable(L, -2);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
243 if (!lua_isnumber(L, -1))
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
244 luaL_error(L, "invalid signal string");
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
245 sig = (int) lua_tonumber(L, -1);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
246 lua_pop(L, 1); /* get rid of number we pushed */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
247 } else
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
248 luaL_checknumber(L, 1); /* will always error, with good error msg */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
249
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
250 /* set handler */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
251 if (args == 1 || lua_isnil(L, 2)) /* clear handler */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
252 {
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
253 lua_pushstring(L, LUA_SIGNAL);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
254 lua_gettable(L, LUA_REGISTRYINDEX);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
255 lua_pushnumber(L, sig);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
256 lua_gettable(L, -2); /* return old handler */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
257 lua_pushnumber(L, sig);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
258 lua_pushnil(L);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
259 lua_settable(L, -4);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
260 lua_remove(L, -2); /* remove LUA_SIGNAL table */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
261 signal(sig, SIG_DFL);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
262 } else
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
263 {
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
264 luaL_checktype(L, 2, LUA_TFUNCTION);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
265
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
266 lua_pushstring(L, LUA_SIGNAL);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
267 lua_gettable(L, LUA_REGISTRYINDEX);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
268
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
269 lua_pushnumber(L, sig);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
270 lua_pushvalue(L, 2);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
271 lua_settable(L, -3);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
272
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
273 /* Set the state for the handler */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
274 Lsig = L;
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
275
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
276 if (lua_toboolean(L, 3)) /* c hook? */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
277 {
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
278 if (signal(sig, handle) == SIG_ERR)
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
279 lua_pushboolean(L, 0);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
280 else
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
281 lua_pushboolean(L, 1);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
282 } else /* lua_hook */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
283 {
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
284 if (signal(sig, handle) == SIG_ERR)
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
285 lua_pushboolean(L, 0);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
286 else
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
287 lua_pushboolean(L, 1);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
288 }
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
289 }
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
290 return 1;
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
291 }
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
292
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
293 /*
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
294 * l_raise == raise(signal)
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
295 *
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
296 * signal = signal number or string
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
297 */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
298
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
299 static int l_raise(lua_State *L)
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
300 {
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
301 /* int args = lua_gettop(L); */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
302 int t = 0; /* type */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
303 lua_Number ret;
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
304
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
305 luaL_checkany(L, 1);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
306
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
307 t = lua_type(L, 1);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
308 if (t == LUA_TNUMBER)
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
309 {
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
310 ret = (lua_Number) raise((int) lua_tonumber(L, 1));
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
311 lua_pushnumber(L, ret);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
312 } else if (t == LUA_TSTRING)
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
313 {
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
314 lua_pushstring(L, LUA_SIGNAL);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
315 lua_gettable(L, LUA_REGISTRYINDEX);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
316 lua_pushvalue(L, 1);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
317 lua_gettable(L, -2);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
318 if (!lua_isnumber(L, -1))
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
319 luaL_error(L, "invalid signal string");
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
320 ret = (lua_Number) raise((int) lua_tonumber(L, -1));
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
321 lua_pop(L, 1); /* get rid of number we pushed */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
322 lua_pushnumber(L, ret);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
323 } else
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
324 luaL_checknumber(L, 1); /* will always error, with good error msg */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
325
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
326 return 1;
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
327 }
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
328
3282
8ef3beed0779 util.signal: Make kill() available on OS X (thanks darkrain).
Waqas Hussain <waqas20@gmail.com>
parents: 3274
diff changeset
329 #if defined(__unix__) || defined(__APPLE__)
988
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
330
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
331 /* define some posix only functions */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
332
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
333 /*
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
334 * l_kill == kill(pid, signal)
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
335 *
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
336 * pid = process id
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
337 * signal = signal number or string
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
338 */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
339
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
340 static int l_kill(lua_State *L)
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
341 {
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
342 int t; /* type */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
343 lua_Number ret; /* return value */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
344
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
345 luaL_checknumber(L, 1); /* must be int for pid */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
346 luaL_checkany(L, 2); /* check for a second arg */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
347
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
348 t = lua_type(L, 2);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
349 if (t == LUA_TNUMBER)
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
350 {
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
351 ret = (lua_Number) kill((int) lua_tonumber(L, 1),
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
352 (int) lua_tonumber(L, 2));
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
353 lua_pushnumber(L, ret);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
354 } else if (t == LUA_TSTRING)
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
355 {
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
356 lua_pushstring(L, LUA_SIGNAL);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
357 lua_gettable(L, LUA_REGISTRYINDEX);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
358 lua_pushvalue(L, 2);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
359 lua_gettable(L, -2);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
360 if (!lua_isnumber(L, -1))
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
361 luaL_error(L, "invalid signal string");
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
362 ret = (lua_Number) kill((int) lua_tonumber(L, 1),
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
363 (int) lua_tonumber(L, -1));
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
364 lua_pop(L, 1); /* get rid of number we pushed */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
365 lua_pushnumber(L, ret);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
366 } else
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
367 luaL_checknumber(L, 2); /* will always error, with good error msg */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
368 return 1;
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
369 }
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
370
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
371 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
372
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
373 static const struct luaL_Reg lsignal_lib[] = {
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
374 {"signal", l_signal},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
375 {"raise", l_raise},
3282
8ef3beed0779 util.signal: Make kill() available on OS X (thanks darkrain).
Waqas Hussain <waqas20@gmail.com>
parents: 3274
diff changeset
376 #if defined(__unix__) || defined(__APPLE__)
988
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
377 {"kill", l_kill},
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
378 #endif
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
379 {NULL, NULL}
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
380 };
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
381
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
382 int luaopen_util_signal(lua_State *L)
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
383 {
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
384 int i = 0;
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
385
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
386 /* add the library */
6411
6c8f6364bc48 util-src/*.c: Don't create globals when loaded
Kim Alvefur <zash@zash.se>
parents: 3284
diff changeset
387 lua_newtable(L);
6c8f6364bc48 util-src/*.c: Don't create globals when loaded
Kim Alvefur <zash@zash.se>
parents: 3284
diff changeset
388 luaL_register(L, NULL, lsignal_lib);
988
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
389
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
390 /* push lua_signals table into the registry */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
391 /* put the signals inside the library table too,
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
392 * they are only a reference */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
393 lua_pushstring(L, LUA_SIGNAL);
6412
0e94f89d0e62 util-src/*.c: Use the more concise lua_setfield
Kim Alvefur <zash@zash.se>
parents: 6411
diff changeset
394 lua_newtable(L);
988
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
395
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
396 while (lua_signals[i].name != NULL)
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
397 {
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
398 /* registry table */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
399 lua_pushstring(L, lua_signals[i].name);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
400 lua_pushnumber(L, lua_signals[i].sig);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
401 lua_settable(L, -3);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
402 /* signal table */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
403 lua_pushstring(L, lua_signals[i].name);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
404 lua_pushnumber(L, lua_signals[i].sig);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
405 lua_settable(L, -5);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
406 i++;
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
407 }
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
408
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
409 /* add newtable to the registry */
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
410 lua_settable(L, LUA_REGISTRYINDEX);
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
411
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
412 return 1;
8cb9a0d59e78 util.lsignal: Add lsignal library for catching POSIX signals
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
413 }