30 lines
440 B
C
30 lines
440 B
C
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/*
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* waiter.c
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*
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* Just sits there without doing anything. We use the read system call just to
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* provide a way to wait. Intended to test our ability to detect stuck
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* processes in userspace.
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*/
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#include <unistd.h>
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#include <err.h>
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int
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main(void)
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{
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char ch=0;
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int len;
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while (ch!='q') {
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len = read(STDIN_FILENO, &ch, 1);
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if (len < 0) {
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err(1, "stdin: read");
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}
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if (len==0) {
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/* EOF */
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break;
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}
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}
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return 0;
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}
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