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28 lines
530 B
28 lines
530 B
#include <stdio.h>
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#include <ulib.h>
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void
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sleepy(int pid) {
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int i, time = 100;
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for (i = 0; i < 10; i ++) {
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sleep(time);
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cprintf("sleep %d x %d slices.\n", i + 1, time);
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}
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exit(0);
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}
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int
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main(void) {
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unsigned int time = gettime_msec();
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int pid1, exit_code;
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if ((pid1 = fork()) == 0) {
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sleepy(pid1);
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}
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assert(waitpid(pid1, &exit_code) == 0 && exit_code == 0);
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cprintf("use %04d msecs.\n", gettime_msec() - time);
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cprintf("sleep pass.\n");
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return 0;
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}
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