mirror of
https://github.com/fish-shell/fish-shell
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47 lines
1.1 KiB
C++
47 lines
1.1 KiB
C++
// The library for various signal related issues.
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#include "config.h" // IWYU pragma: keep
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#include <errno.h>
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#ifdef HAVE_SIGINFO_H
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#include <siginfo.h>
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#endif
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#include <unistd.h>
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#include <csignal>
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#include <cwchar>
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#include <mutex>
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#include "common.h"
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#include "event.h"
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#include "fallback.h" // IWYU pragma: keep
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#include "global_safety.h"
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#include "reader.h"
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#include "signals.h"
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#include "termsize.h"
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#include "topic_monitor.h"
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#include "wutil.h" // IWYU pragma: keep
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extern "C" {
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void get_signals_with_handlers_ffi(sigset_t *set);
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}
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void get_signals_with_handlers(sigset_t *set) { get_signals_with_handlers_ffi(set); }
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sigchecker_t::sigchecker_t(topic_t signal) : topic_(signal) {
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// Call check() to update our generation.
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check();
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}
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bool sigchecker_t::check() {
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auto &tm = topic_monitor_principal();
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generation_t gen = tm.generation_for_topic(topic_);
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bool changed = this->gen_ != gen;
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this->gen_ = gen;
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return changed;
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}
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void sigchecker_t::wait() const {
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auto &tm = topic_monitor_principal();
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generation_list_t gens = invalid_generations();
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gens.at_mut(topic_) = this->gen_;
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tm.check(&gens, true /* wait */);
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}
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