electron/shell/common/node_bindings_linux.cc
Cheng Zhao 4e66b072da
chore: update libuv patch for event loop integration (#31647)
* chore: update libuv patch for loop integration

* chore: update patches

Co-authored-by: PatchUp <73610968+patchup[bot]@users.noreply.github.com>
2022-03-29 19:03:07 +09:00

60 lines
1.4 KiB
C++

// Copyright (c) 2014 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "shell/common/node_bindings_linux.h"
#include <sys/epoll.h>
namespace electron {
NodeBindingsLinux::NodeBindingsLinux(BrowserEnvironment browser_env)
: NodeBindings(browser_env), epoll_(epoll_create(1)) {
int backend_fd = uv_backend_fd(uv_loop_);
struct epoll_event ev = {0};
ev.events = EPOLLIN;
ev.data.fd = backend_fd;
epoll_ctl(epoll_, EPOLL_CTL_ADD, backend_fd, &ev);
}
NodeBindingsLinux::~NodeBindingsLinux() = default;
void NodeBindingsLinux::PrepareMessageLoop() {
int handle = uv_backend_fd(uv_loop_);
// If the backend fd hasn't changed, don't proceed.
if (handle == handle_)
return;
NodeBindings::PrepareMessageLoop();
}
void NodeBindingsLinux::RunMessageLoop() {
int handle = uv_backend_fd(uv_loop_);
// If the backend fd hasn't changed, don't proceed.
if (handle == handle_)
return;
handle_ = handle;
NodeBindings::RunMessageLoop();
}
void NodeBindingsLinux::PollEvents() {
int timeout = uv_backend_timeout(uv_loop_);
// Wait for new libuv events.
int r;
do {
struct epoll_event ev;
r = epoll_wait(epoll_, &ev, 1, timeout);
} while (r == -1 && errno == EINTR);
}
// static
NodeBindings* NodeBindings::Create(BrowserEnvironment browser_env) {
return new NodeBindingsLinux(browser_env);
}
} // namespace electron