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28 lines
568 B
C
28 lines
568 B
C
#include <stdio.h>
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#include <assert.h>
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#include <errno.h>
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#include <unistd.h>
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#include <sys/wait.h>
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#include "toku_portability.h"
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int main(void) {
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int fd = toku_os_lock_file(__FILE__);
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assert(fd != -1);
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pid_t pid = fork();
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assert(pid != -1);
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if (pid == 0) {
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int fd2 = toku_os_lock_file(__FILE__);
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assert(fd2 == -1);
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return 0;
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} else {
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int status;
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pid_t wpid = waitpid(-1, &status, 0);
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assert(wpid == pid);
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assert(status == 0);
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}
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int r = toku_os_unlock_file(fd);
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assert(r == 0);
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return 0;
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}
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