kaguya
47 lines
764 B
C
47 lines
764 B
C
#include <assert.h>
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#include <pthread.h>
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#include <signal.h>
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_Atomic int handler_ready = 0;
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_Atomic int thread_signal_ran = 0;
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static void sig_handler(int sig, siginfo_t *info, void *ctx) {
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(void)sig;
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(void)info;
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(void)ctx;
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thread_signal_ran = 1;
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}
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static void *worker(void *arg) {
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(void)arg;
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struct sigaction sa;
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sigemptyset(&sa.sa_mask);
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sa.sa_sigaction = sig_handler;
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sa.sa_flags = SA_SIGINFO;
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assert(!sigaction(SIGUSR1, &sa, NULL));
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handler_ready = 1;
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while (!thread_signal_ran)
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;
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return NULL;
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}
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int main() {
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pthread_t thread;
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assert(!pthread_create(&thread, NULL, &worker, NULL));
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while (!handler_ready)
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;
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assert(!pthread_kill(thread, SIGUSR1));
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assert(!pthread_join(thread, NULL));
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assert(thread_signal_ran);
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return 0;
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}
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