42 lines
1018 B
C
42 lines
1018 B
C
#include <unistd.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/wait.h>
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#define LOOPS_PER_CHILD 2000
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#define CHILDS 30
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int main() {
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for (int start = 0; start < LOOPS_PER_CHILD * CHILDS; start += LOOPS_PER_CHILD) {
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pid_t pid = fork();
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if (pid == -1) {
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fprintf(stderr, "Error forking: %s\n", strerror(errno));
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return 1;
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} else if (pid == 0) {
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// I AM FORK!
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pid_t childPid = getpid();
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for (int i = start; i < start + LOOPS_PER_CHILD; i++) {
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fprintf(stdout, "%d: %d\n", childPid, i);
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fflush(stdout);
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}
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printf("Fork %d finished counting from %d\n", childPid, start);
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return 0;
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} else {
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printf("Fork %d successfull\n", pid);
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}
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}
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// wait for all childs to terminate
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while (wait(NULL) > -1);
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return 0;
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fork();
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fork();
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fork();
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printf("Hello World\n");
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}
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