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Replay: make use of sigaction instead of signal API

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It's a more proper and portable way to set up signal handlers.
This commit is contained in:
Staroselskii Georgii 2016-07-13 15:55:18 +03:00 committed by Andrew Tridgell
parent 9576be3a21
commit bd8c61542d
1 changed files with 11 additions and 2 deletions
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13
Tools/Replay/Replay.cpp
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@ -581,11 +581,16 @@ void Replay::set_user_parameters(void)
void Replay::set_signal_handlers(void)
{
struct sigaction sa;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
if (generate_fpe) {
// SITL_State::_parse_command_line sets up an FPE handler. We
// can do better:
feenableexcept(FE_INVALID | FE_OVERFLOW);
signal(SIGFPE, _replay_sig_fpe);
sa.sa_handler = _replay_sig_fpe;
} else {
// disable floating point exception generation:
int exceptions = FE_OVERFLOW | FE_DIVBYZERO;
@ -596,7 +601,11 @@ void Replay::set_signal_handlers(void)
if (feclearexcept(exceptions)) {
::fprintf(stderr, "Failed to disable floating point exceptions: %s", strerror(errno));
}
signal(SIGFPE, SIG_IGN);
sa.sa_handler = SIG_IGN;
}
if (sigaction(SIGFPE, &sa, nullptr) < 0) {
::fprintf(stderr, "Failed to set floating point exceptions' handler: %s", strerror(errno));
}
}