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34 行
595 B
34 行
595 B
#include <ulib.h>
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#include <stdio.h>
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const int max_child = 32;
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int
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main(void) {
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int n, pid;
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for (n = 0; n < max_child; n ++) {
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if ((pid = fork()) == 0) {
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cprintf("I am child %d\n", n);
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exit(0);
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}
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assert(pid > 0);
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}
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if (n > max_child) {
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panic("fork claimed to work %d times!\n", n);
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}
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for (; n > 0; n --) {
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if (wait() != 0) {
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panic("wait stopped early\n");
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}
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}
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if (wait() == 0) {
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panic("wait got too many\n");
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}
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cprintf("forktest pass.\n");
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return 0;
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}
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