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/*
* Copyright (c) 2008-2011 Apple Inc. All rights reserved.
*
* @APPLE_APACHE_LICENSE_HEADER_START@
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* @APPLE_APACHE_LICENSE_HEADER_END@
*/
#include <dispatch/dispatch.h>
#include <stdio.h>
#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
#include <unistd.h>
#endif
#include <stdlib.h>
#include <assert.h>
#include <spawn.h>
#include <signal.h>
#ifdef __APPLE__
#include <libkern/OSAtomic.h>
#endif
#include <bsdtests.h>
#include "dispatch_test.h"
#define PID_CNT 5
static long event_cnt;
void
test_proc(pid_t bad_pid)
{
dispatch_source_t proc_s[PID_CNT], proc;
int res;
pid_t pid, monitor_pid;
event_cnt = 0;
// Creates a process and register multiple observers. Send a signal,
// exit the process, etc., and verify all observers were notified.
posix_spawnattr_t attr;
res = posix_spawnattr_init(&attr);
assert(res == 0);
res = posix_spawnattr_setflags(&attr, POSIX_SPAWN_START_SUSPENDED);
assert(res == 0);
char* args[] = {
"/bin/sleep", "2", NULL
};
res = posix_spawnp(&pid, args[0], NULL, &attr, args, NULL);
if (res < 0) {
perror(args[0]);
exit(127);
}
res = posix_spawnattr_destroy(&attr);
assert(res == 0);
dispatch_group_t group = dispatch_group_create();
assert(pid > 0);
monitor_pid = bad_pid ? bad_pid : pid; // rdar://problem/8090801
int i;
for (i = 0; i < PID_CNT; ++i) {
dispatch_group_enter(group);
proc = proc_s[i] = dispatch_source_create(DISPATCH_SOURCE_TYPE_PROC,
monitor_pid, DISPATCH_PROC_EXIT, dispatch_get_global_queue(0, 0));
test_ptr_notnull("dispatch_source_proc_create", proc);
dispatch_source_set_event_handler(proc, ^{
long flags = dispatch_source_get_data(proc);
test_long("DISPATCH_PROC_EXIT", flags, DISPATCH_PROC_EXIT);
event_cnt++;
dispatch_source_cancel(proc);
});
dispatch_source_set_cancel_handler(proc, ^{
dispatch_group_leave(group);
});
dispatch_resume(proc);
}
kill(pid, SIGCONT);
if (dispatch_group_wait(group, dispatch_time(DISPATCH_TIME_NOW, 10*NSEC_PER_SEC))) {
for (i = 0; i < PID_CNT; ++i) {
dispatch_source_cancel(proc_s[i]);
}
dispatch_group_wait(group, DISPATCH_TIME_FOREVER);
}
for (i = 0; i < PID_CNT; ++i) {
dispatch_release(proc_s[i]);
}
dispatch_release(group);
// delay 5 seconds to give a chance for any bugs that
// result in too many events to be noticed
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 5*NSEC_PER_SEC), dispatch_get_main_queue(), ^{
int status;
int res2 = waitpid(pid, &status, 0);
assert(res2 != -1);
//int passed = (WIFEXITED(status) && WEXITSTATUS(status) == 0);
test_long("Sub-process exited", WEXITSTATUS(status) | WTERMSIG(status), 0);
test_long("Event count", event_cnt, PID_CNT);
if (bad_pid) {
test_stop();
} else {
dispatch_async(dispatch_get_main_queue(), ^{
test_proc(pid);
});
}
});
}
int
main(void)
{
dispatch_test_start("Dispatch Proc");
test_proc(0);
dispatch_main();
return 0;
}
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