electron/common/node_bindings_mac.cc
Cheng Zhao 409a431892 Huge commit to use new V8 and Content APIs.
Still got a lots of linking errors!
2013-12-11 15:48:19 +08:00

68 lines
1.7 KiB
C++

// Copyright (c) 2013 GitHub, Inc. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "common/node_bindings_mac.h"
#include <errno.h>
#include <sys/sysctl.h>
#include <sys/time.h>
#include <sys/types.h>
#include "common/v8/node_common.h"
namespace atom {
NodeBindingsMac::NodeBindingsMac(bool is_browser)
: NodeBindings(is_browser),
kqueue_(kqueue()) {
// Add uv's backend fd to kqueue.
struct kevent ev;
EV_SET(&ev, uv_backend_fd(uv_loop_), EVFILT_READ, EV_ADD | EV_ENABLE,
0, 0, 0);
kevent(kqueue_, &ev, 1, NULL, 0, NULL);
}
NodeBindingsMac::~NodeBindingsMac() {
}
void NodeBindingsMac::RunMessageLoop() {
// Get notified when libuv's watcher queue changes.
uv_loop_->data = this;
uv_loop_->on_watcher_queue_updated = OnWatcherQueueChanged;
NodeBindings::RunMessageLoop();
}
// static
void NodeBindingsMac::OnWatcherQueueChanged(uv_loop_t* loop) {
NodeBindingsMac* self = static_cast<NodeBindingsMac*>(loop->data);
// We need to break the io polling in the kqueue thread when loop's watcher
// queue changes, otherwise new events cannot be notified.
self->WakeupEmbedThread();
}
void NodeBindingsMac::PollEvents() {
struct timespec spec;
int timeout = uv_backend_timeout(uv_loop_);
if (timeout != -1) {
spec.tv_sec = timeout / 1000;
spec.tv_nsec = (timeout % 1000) * 1000000;
}
// Wait for new libuv events.
int r;
do {
struct kevent ev;
r = ::kevent(kqueue_, NULL, 0, &ev, 1,
timeout == -1 ? NULL : &spec);
} while (r == -1 && errno == EINTR);
}
// static
NodeBindings* NodeBindings::Create(bool is_browser) {
return new NodeBindingsMac(is_browser);
}
} // namespace atom