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/*
* Copyright (c) 2010-2011 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 <stdio.h>
#include <fcntl.h>
#include <stdlib.h>
#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
#include <unistd.h>
#endif
#include <dispatch/dispatch.h>
#include <bsdtests.h>
#include "dispatch_test.h"
#define ITERATIONS 1000
long iterations, notifications;
int
main(void)
{
dispatch_test_start("Dispatch VNODE RENAME");
char path1[] = "/tmp/dispatchtest_vnode.XXXXXX";
char path2[] = "/tmp/dispatchtest_vnode.XXXXXX";
int fd1 = mkstemp(path1);
if (fd1 == -1) {
test_errno("mkstemp", errno, 0);
test_stop();
}
close(fd1);
if (!mktemp(path2)) {
test_errno("mktemp", errno, 0);
test_stop();
}
char *currentName = path1;
char *renameDest = path2;
dispatch_semaphore_t renamedSemaphore = dispatch_semaphore_create(0);
dispatch_group_t g = dispatch_group_create();
while (iterations++ < ITERATIONS) {
int fd = open(currentName, O_EVTONLY);
if (fd == -1) {
test_errno("open", errno, 0);
test_stop();
}
dispatch_source_t monitorSource = dispatch_source_create(
DISPATCH_SOURCE_TYPE_VNODE, fd, DISPATCH_VNODE_RENAME,
dispatch_get_global_queue(0, 0));
dispatch_source_set_event_handler(monitorSource, ^{
dispatch_semaphore_signal(renamedSemaphore);
});
dispatch_source_set_cancel_handler(monitorSource, ^{
close(fd);
});
#if DISPATCH_API_VERSION >= 20100818 // <rdar://problem/7731284>
dispatch_group_enter(g);
dispatch_source_set_registration_handler(monitorSource, ^{
dispatch_group_leave(g);
});
#endif
dispatch_resume(monitorSource);
dispatch_group_wait(g, DISPATCH_TIME_FOREVER);
if(rename(currentName, renameDest)) {
test_errno("rename", errno, 0);
test_stop();
}
char *tmp = currentName;
currentName = renameDest;
renameDest = tmp;
if(!dispatch_semaphore_wait(renamedSemaphore,
dispatch_time(DISPATCH_TIME_NOW, 10 * 1000 * NSEC_PER_USEC))) {
fprintf(stderr, ".");
notifications++;
dispatch_source_cancel(monitorSource);
} else {
fprintf(stderr, "!");
dispatch_source_cancel(monitorSource);
dispatch_semaphore_signal(renamedSemaphore);
}
if (!(iterations % 80)) {
fprintf(stderr, "\n");
}
dispatch_release(monitorSource);
}
fprintf(stderr, "\n");
unlink(currentName);
dispatch_release(g);
dispatch_release(renamedSemaphore);
test_long("VNODE RENAME notifications", notifications, ITERATIONS);
test_stop();
return 0;
}
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