Red Bear OS
1b3e94a20d
From release 0.1.0 pre-patched archive. This includes all Red Bear modifications previously maintained as patches in local/patches/relibc/.
59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
#include <stdio.h>
|
|
#include <assert.h>
|
|
#include <sys/wait.h>
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "test_helpers.h"
|
|
|
|
int main(void) {
|
|
// Spawn three childrens, one with same pgid and two with pgid set to its own
|
|
// pid, so the exit order is two different pgid, then followed with same pgid
|
|
|
|
pid_t pid_samepgid = fork();
|
|
ERROR_IF(fork, pid_samepgid, == -1);
|
|
|
|
if (pid_samepgid == 0) {
|
|
// child
|
|
usleep(300000);
|
|
_Exit(2);
|
|
}
|
|
pid_t pid_diffpgids[2];
|
|
for (int i = 0; i < 2; i++) {
|
|
pid_diffpgids[i] = fork();
|
|
ERROR_IF(fork, pid_diffpgids[i], == -1);
|
|
|
|
if (pid_diffpgids[i] == 0) {
|
|
int ret = setpgid(0, 0);
|
|
ERROR_IF(setpgid, ret, == -1);
|
|
|
|
// child
|
|
usleep((i + 1) * 100000);
|
|
_Exit(i);
|
|
}
|
|
}
|
|
int status;
|
|
pid_t wid;
|
|
|
|
// First, check that the first different-pgid proc is recognized.
|
|
wid = waitpid(-1, &status, 0);
|
|
ERROR_IF(waitpid, wid, == -1);
|
|
assert(wid == pid_diffpgids[0]);
|
|
assert(WIFEXITED(status));
|
|
assert(WEXITSTATUS(status) == 0);
|
|
|
|
// Then, check that the longest-waiting proc with the same pgid is properly matched.
|
|
wid = waitpid(0, &status, 0);
|
|
ERROR_IF(waitpid, wid, == -1);
|
|
assert(wid == pid_samepgid);
|
|
assert(WIFEXITED(status));
|
|
assert(WEXITSTATUS(status) == 2);
|
|
|
|
// Finally, the last different-pgid must have completed.
|
|
wid = waitpid(-1, &status, WNOHANG);
|
|
ERROR_IF(waitpid, wid, == -1);
|
|
assert(wid == pid_diffpgids[1]);
|
|
assert(WIFEXITED(status));
|
|
assert(WEXITSTATUS(status) == 1);
|
|
}
|