36 lines
658 B
C
36 lines
658 B
C
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#include <sched.h>
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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 <sys/wait.h>
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#include <unistd.h>
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const int calls = 10;
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volatile int ret = calls;
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void save_on_terminate()
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{
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ret--;
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}
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int main(int argc, char** argv)
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{
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int pid = fork();
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if (pid) {
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for (int i = 0; i < 4; i++) {
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// Waiting until child setup its sigaction.
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sched_yield();
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}
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for (int i = 0; i < calls; i++) {
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kill(pid, 3);
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sched_yield();
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}
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waitpid(pid, (int*)&ret, 0);
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} else {
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sigaction(3, save_on_terminate);
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while (ret) { }
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}
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return ret;
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}
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