mirror of
https://github.com/ioacademy-jikim/debugging
synced 2025-06-08 00:16:11 +00:00
40 lines
852 B
C
40 lines
852 B
C
#include <time.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <errno.h>
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#include <signal.h>
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#include "../memcheck.h"
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/* Check that a syscall's POST function gets called if it completes
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due to being interrupted. nanosleep is used here, because it
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writes a result even if it fails. wait*() could also be used,
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because they successfully complete if interrupted by SIGCHLD.
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*/
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static void handler(int s)
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{
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}
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int main()
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{
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struct timespec req, rem;
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int ret;
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req.tv_sec = 2;
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req.tv_nsec = 0;
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signal(SIGALRM, handler);
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alarm(1);
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ret = nanosleep(&req, &rem);
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if (ret != -1 || errno != EINTR) {
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fprintf(stderr, "FAILED: expected nanosleep to be interrupted\n");
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} else {
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(void) VALGRIND_CHECK_VALUE_IS_DEFINED(rem);
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fprintf(stderr, "PASSED\n"); /* assuming CHECK_VALUE_IS_DEFINED doesn't print anything */
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}
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return 0;
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}
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