Josh Williams
66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
#define _XOPEN_SOURCE 600
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "signals_list.h"
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#include "../test_helpers.h"
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#define NUMSIGNALS 26
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int is_empty(sigset_t *set) {
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int i;
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int siglist[] = {SIGABRT, SIGALRM, SIGBUS, SIGCHLD,
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SIGCONT, SIGFPE, SIGHUP, SIGILL, SIGINT,
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SIGPIPE, SIGQUIT, SIGSEGV,
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SIGTERM, SIGTSTP, SIGTTIN, SIGTTOU,
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SIGUSR1, SIGUSR2, SIGPROF, SIGSYS,
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SIGTRAP, SIGURG, SIGVTALRM, SIGXCPU, SIGXFSZ };
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for (i=0; i<NUMSIGNALS; i++) {
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if (sigismember(set, siglist[i]) != 0)
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return 0;
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}
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return 1;
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}
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void sig_handler(int signo)
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{
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printf("%d called. Inside handler\n", signo);
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}
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int sigset_test5(int signum)
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{
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sigset_t mask;
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sigemptyset(&mask);
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sigprocmask(SIG_SETMASK, &mask, NULL);
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if (sigset(signum, sig_handler) == SIG_ERR) {
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perror("Unexpected error while using sigset()");
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exit(EXIT_FAILURE);
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}
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raise(signum);
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sigprocmask(SIG_SETMASK, NULL, &mask);
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if (is_empty(&mask) != 1) {
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printf("Test FAILED: signal mask should be empty\n");
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exit(EXIT_FAILURE);
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}
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printf("sig %d was successfully removed from the mask when handler returned\n", signum);
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return EXIT_SUCCESS;
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}
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int main(){
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for (int i=1; i<N_SIGNALS; i++){
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if (i == SIGKILL || i == SIGSTOP){
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continue;
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}
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sigset_test5(i);
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}
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return 0;
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}
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