mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-28 00:06:09 +03:00
49 lines
1.8 KiB
C++
49 lines
1.8 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#include "base/mac/dispatch_source_mach.h"
|
|
|
|
namespace base {
|
|
|
|
DispatchSourceMach::DispatchSourceMach(const char* name,
|
|
mach_port_t port,
|
|
void (^event_handler)())
|
|
// TODO(rsesek): Specify DISPATCH_QUEUE_SERIAL, in the 10.7 SDK. NULL
|
|
// means the same thing but is not symbolically clear.
|
|
: DispatchSourceMach(dispatch_queue_create(name, NULL),
|
|
port,
|
|
event_handler) {
|
|
// Since the queue was created above in the delegated constructor, and it was
|
|
// subsequently retained, release it here.
|
|
dispatch_release(queue_);
|
|
}
|
|
|
|
DispatchSourceMach::DispatchSourceMach(dispatch_queue_t queue,
|
|
mach_port_t port,
|
|
void (^event_handler)())
|
|
: queue_(queue, base::scoped_policy::RETAIN),
|
|
source_(dispatch_source_create(DISPATCH_SOURCE_TYPE_MACH_RECV,
|
|
port, 0, queue_)),
|
|
source_canceled_(dispatch_semaphore_create(0)) {
|
|
dispatch_source_set_event_handler(source_, event_handler);
|
|
dispatch_source_set_cancel_handler(source_, ^{
|
|
dispatch_semaphore_signal(source_canceled_);
|
|
});
|
|
}
|
|
|
|
DispatchSourceMach::~DispatchSourceMach() {
|
|
// Cancel the source and wait for the semaphore to be signaled. This will
|
|
// ensure the source managed by this class is not used after it is freed.
|
|
dispatch_source_cancel(source_);
|
|
source_.reset();
|
|
|
|
dispatch_semaphore_wait(source_canceled_, DISPATCH_TIME_FOREVER);
|
|
}
|
|
|
|
void DispatchSourceMach::Resume() {
|
|
dispatch_resume(source_);
|
|
}
|
|
|
|
} // namespace base
|