tdlight/tdutils/td/utils/port/detail/EventFdWindows.cpp
levlam 30ceb55fb4 Fix checking of return values.
GitOrigin-RevId: 81accbd062db24d031a3054ba5cc86ace38774ad
2018-09-11 20:31:53 +03:00

69 lines
1.5 KiB
C++

//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2018
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include "td/utils/port/detail/EventFdWindows.h"
char disable_linker_warning_about_empty_file_event_fd_windows_cpp TD_UNUSED;
#ifdef TD_EVENTFD_WINDOWS
#include "td/utils/logging.h"
namespace td {
namespace detail {
void EventFdWindows::init() {
auto handle = CreateEventW(nullptr, true, false, nullptr);
if (handle == nullptr) {
auto error = OS_ERROR("CreateEventW failed");
LOG(FATAL) << error;
}
event_ = NativeFd(handle);
}
bool EventFdWindows::empty() {
return !event_;
}
void EventFdWindows::close() {
event_.close();
}
Status EventFdWindows::get_pending_error() {
return Status::OK();
}
PollableFdInfo &EventFdWindows::get_poll_info() {
UNREACHABLE();
}
void EventFdWindows::release() {
if (SetEvent(event_.fd()) == 0) {
auto error = OS_ERROR("SetEvent failed");
LOG(FATAL) << error;
}
}
void EventFdWindows::acquire() {
if (ResetEvent(event_.fd()) == 0) {
auto error = OS_ERROR("ResetEvent failed");
LOG(FATAL) << error;
}
}
void EventFdWindows::wait(int timeout_ms) {
WaitForSingleObject(event_.fd(), timeout_ms);
if (ResetEvent(event_.fd()) == 0) {
auto error = OS_ERROR("ResetEvent failed");
LOG(FATAL) << error;
}
}
} // namespace detail
} // namespace td
#endif