76 lines
1.2 KiB
C
76 lines
1.2 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <signal.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <time.h>
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#include <sys/time.h>
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#include <sys/wait.h>
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#define FILESIZE (2L * 1024 * 1024 * 1024)
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pid_t pid;
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void
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sig(int s)
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{
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fprintf(stderr, "kill SIGURG\n");
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kill(pid, SIGURG);
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}
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void
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child()
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{
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char *buf;
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long rc;
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long l;
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long r;
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int fd;
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buf = malloc(FILESIZE);
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fd = open("testfile", O_RDONLY);
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if (fd == -1) {
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fprintf(stderr, "Could not open file\n");
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unlink("testfile");
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exit(1);
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}
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rc = read(fd, buf, FILESIZE);
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}
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int
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main(int argc, char **argv)
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{
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int st;
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int rc;
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pid = fork();
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if (pid == 0) {
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child();
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exit(99);
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}
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signal(SIGALRM, sig);
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alarm(2);
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while ((rc = waitpid(pid, &st, 0)) == -1 && errno == EINTR);
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if (rc != pid) {
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fprintf(stderr, "CT2006 NG BAD wait rc=%d errno=%d\n", rc, errno);
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exit(1);
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}
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if (WIFSIGNALED(st)) {
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fprintf(stderr, "CT2006 NG BAD signal st=%08x\n", st);
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exit(1);
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}
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if (!WIFEXITED(st)) {
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fprintf(stderr, "CT2006 NG BAD terminated st=%08x\n", st);
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exit(1);
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}
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if (WEXITSTATUS(st) != 99) {
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fprintf(stderr, "CT2006 NG BAD exit status st=%08x\n", st);
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exit(1);
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}
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fprintf(stderr, "CT2006 OK\n");
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exit(0);
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}
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