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tdutils/td/utils/port/detail/EventFdWindows.cpp

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+/*
+    This file is part of TON Blockchain Library.
+
+    TON Blockchain Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 2 of the License, or
+    (at your option) any later version.
+
+    TON Blockchain Library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with TON Blockchain Library.  If not, see <http://www.gnu.org/licenses/>.
+
+    Copyright 2017-2019 Telegram Systems LLP
+*/
+#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