kaguya
55 lines
1.0 KiB
C
55 lines
1.0 KiB
C
#include <assert.h>
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#include <pthread.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <sys/wait.h>
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_Atomic int prepare_order = 0;
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_Atomic int parent_order = 0;
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_Atomic int child_order = 0;
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static void prepare1() { prepare_order = 1; }
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static void prepare2() { prepare_order = 2; }
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static void parent1() { parent_order = 1; }
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static void parent2() { parent_order = 2; }
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static void child1() { child_order = 1; }
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static void child2() { child_order = 2; }
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int main() {
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assert(!pthread_atfork(prepare1, parent1, child1));
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assert(!pthread_atfork(prepare2, parent2, child2));
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pid_t pid = fork();
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assert(pid >= 0);
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if (!pid) {
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assert(child_order == 2);
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exit(0);
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} else {
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assert(prepare_order == 1);
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assert(parent_order == 2);
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while (1) {
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int status = 0;
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int ret = waitpid(pid, &status, 0);
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if (ret == -1 && errno == EINTR)
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continue;
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assert(ret > 0);
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if (WIFSIGNALED(status) && WTERMSIG(status) == SIGABRT)
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return 1;
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return WEXITSTATUS(status);
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}
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}
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return 0;
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}
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