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33 lines
652 B
33 lines
652 B
2 years ago
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/*
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* The application of lab3_2.
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* parent and child processes intermittently give up their processors.
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*/
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#include "user/user_lib.h"
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#include "util/types.h"
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int main(void) {
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uint64 pid = fork();
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uint64 rounds = 0xffff;
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if (pid == 0) {
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printu("Child: Hello world! \n");
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for (uint64 i = 0; i < rounds; ++i) {
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if (i % 10000 == 0) {
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printu("Child running %ld \n", i);
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yield();
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}
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}
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} else {
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printu("Parent: Hello world! \n");
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for (uint64 i = 0; i < rounds; ++i) {
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if (i % 10000 == 0) {
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printu("Parent running %ld \n", i);
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yield();
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}
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}
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}
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exit(0);
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return 0;
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}
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