106 lines
1.8 KiB
C
106 lines
1.8 KiB
C
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/*
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* Copyright 2013, Michael Ellerman, IBM Corp.
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* Licensed under GPLv2.
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*/
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#include <errno.h>
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#include <signal.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include "subunit.h"
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#include "utils.h"
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#define TIMEOUT 120
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#define KILL_TIMEOUT 5
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int run_test(int (test_function)(void), char *name)
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{
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bool terminated;
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int rc, status;
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pid_t pid;
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/* Make sure output is flushed before forking */
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fflush(stdout);
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pid = fork();
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if (pid == 0) {
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exit(test_function());
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} else if (pid == -1) {
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perror("fork");
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return 1;
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}
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/* Wake us up in timeout seconds */
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alarm(TIMEOUT);
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terminated = false;
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wait:
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rc = waitpid(pid, &status, 0);
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if (rc == -1) {
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if (errno != EINTR) {
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printf("unknown error from waitpid\n");
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return 1;
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}
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if (terminated) {
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printf("!! force killing %s\n", name);
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kill(pid, SIGKILL);
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return 1;
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} else {
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printf("!! killing %s\n", name);
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kill(pid, SIGTERM);
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terminated = true;
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alarm(KILL_TIMEOUT);
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goto wait;
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}
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}
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if (WIFEXITED(status))
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status = WEXITSTATUS(status);
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else {
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if (WIFSIGNALED(status))
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printf("!! child died by signal %d\n", WTERMSIG(status));
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else
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printf("!! child died by unknown cause\n");
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status = 1; /* Signal or other */
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}
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return status;
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}
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static void alarm_handler(int signum)
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{
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/* Jut wake us up from waitpid */
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}
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static struct sigaction alarm_action = {
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.sa_handler = alarm_handler,
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};
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int test_harness(int (test_function)(void), char *name)
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{
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int rc;
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test_start(name);
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test_set_git_version(GIT_VERSION);
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if (sigaction(SIGALRM, &alarm_action, NULL)) {
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perror("sigaction");
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test_error(name);
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return 1;
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}
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rc = run_test(test_function, name);
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test_finish(name, rc);
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return rc;
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}
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