Dmitry V. Levin
cde9ef7183
* tests/wait.c: New file. * tests/wait.expected: Likewise. * tests/wait.test: New test. * tests/Makefile.am (check_PROGRAMS): Add wait. (TESTS): Add wait.test. (EXTRA_DIST): Add wait.expected. * tests/.gitignore: Add wait.
68 lines
1.3 KiB
C
68 lines
1.3 KiB
C
#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <assert.h>
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#include <signal.h>
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#include <unistd.h>
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#include <sys/wait.h>
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#include <sys/resource.h>
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int
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main(void)
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{
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int fds[2];
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int s;
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pid_t pid;
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struct rusage rusage = {};
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siginfo_t info = {};
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(void) close(0);
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(void) close(1);
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assert(!pipe(fds) && fds[0] == 0 && fds[1] == 1);
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pid = fork();
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assert(pid >= 0);
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if (!pid) {
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char c;
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(void) close(1);
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assert(read(0, &c, sizeof(c)) == 1);
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return 42;
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}
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(void) close(0);
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assert(wait4(pid, &s, WNOHANG | __WALL, NULL) == 0);
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assert(waitid(P_PID, pid, &info, WNOHANG | WEXITED) == 0);
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assert(write(1, "", 1) == 1);
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(void) close(1);
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assert(wait4(pid, &s, 0, &rusage) == pid);
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assert(WIFEXITED(s) && WEXITSTATUS(s) == 42);
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pid = fork();
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assert(pid >= 0);
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if (!pid) {
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(void) raise(SIGUSR1);
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return 77;
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}
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assert(wait4(pid, &s, __WALL, NULL) == pid);
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assert(WIFSIGNALED(s) && WTERMSIG(s) == SIGUSR1);
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pid = fork();
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assert(pid >= 0);
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if (!pid) {
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raise(SIGSTOP);
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return 0;
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}
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assert(wait4(pid, &s, WUNTRACED, NULL) == pid);
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assert(WIFSTOPPED(s) && WSTOPSIG(s) == SIGSTOP);
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assert(kill(pid, SIGCONT) == 0);
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assert(waitid(P_PID, pid, &info, WEXITED | WSTOPPED) == 0);
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assert(info.si_code == CLD_EXITED && info.si_status == 0);
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assert(wait4(-1, &s, WNOHANG | WUNTRACED | __WALL, &rusage) == -1);
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return 0;
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}
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