39 lines
678 B
C
39 lines
678 B
C
#include "signal_check.h"
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volatile sig_atomic_t __caught_signals[NSIG];
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static void __signal_handler(int sig)
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{
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__caught_signals[sig] = 1;
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}
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static void __set_signal_handler(int sig, void (* handler)(int))
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{
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struct sigaction act;
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act.sa_flags = 0;
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act.sa_handler = handler;
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sigaction(sig, &act, 0);
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}
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void signal_handle(int sig)
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{
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__set_signal_handler(sig, __signal_handler);
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}
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void signal_unhandle(int sig)
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{
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signal_clear(sig);
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__set_signal_handler(sig, SIG_DFL);
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}
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int signal_is_pending(int sig)
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{
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return __caught_signals[sig];
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}
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void signal_clear(int sig)
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{
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__caught_signals[sig] = 0;
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}
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