1 /* vi: set sw=4 ts=4: */
5 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
6 * Copyright (C) 2006 Rob Landley
7 * Copyright (C) 2006 Denys Vlasenko
9 * Licensed under GPLv2, see file LICENSE in this source tree.
13 /* All known arches use small ints for signals */
14 smallint bb_got_signal;
16 void record_signo(int signo)
18 bb_got_signal = signo;
21 /* Saves 2 bytes on x86! Oh my... */
22 int FAST_FUNC sigaction_set(int signum, const struct sigaction *act)
24 return sigaction(signum, act, NULL);
27 int FAST_FUNC sigprocmask_allsigs(int how)
31 return sigprocmask(how, &set, NULL);
34 int FAST_FUNC sigprocmask2(int how, sigset_t *set)
37 // "passing argument 3 to restrict-qualified parameter aliases with argument 2"
38 // dance around that...
39 sigset_t *oset FIX_ALIASING;
41 return sigprocmask(how, set, oset);
44 void FAST_FUNC bb_signals(int sigs, void (*f)(int))
59 void FAST_FUNC bb_signals_recursive_norestart(int sigs, void (*f)(int))
65 memset(&sa, 0, sizeof(sa));
68 /*sigemptyset(&sa.sa_mask); - hope memset did it*/
73 sigaction_set(sig_no, &sa);
80 void FAST_FUNC sig_block(int sig)
85 sigprocmask(SIG_BLOCK, &ss, NULL);
88 void FAST_FUNC sig_unblock(int sig)
93 sigprocmask(SIG_UNBLOCK, &ss, NULL);
96 void FAST_FUNC wait_for_any_sig(void)
103 /* Assuming the sig is fatal */
104 void FAST_FUNC kill_myself_with_sig(int sig)
106 signal(sig, SIG_DFL);
109 _exit(sig | 128); /* Should not reach it */
112 void FAST_FUNC signal_SA_RESTART_empty_mask(int sig, void (*handler)(int))
115 memset(&sa, 0, sizeof(sa));
116 /*sigemptyset(&sa.sa_mask);*/
117 sa.sa_flags = SA_RESTART;
118 sa.sa_handler = handler;
119 sigaction_set(sig, &sa);
122 void FAST_FUNC signal_no_SA_RESTART_empty_mask(int sig, void (*handler)(int))
125 memset(&sa, 0, sizeof(sa));
126 /*sigemptyset(&sa.sa_mask);*/
128 sa.sa_handler = handler;
129 sigaction_set(sig, &sa);