109 lines
3.0 KiB
C++
109 lines
3.0 KiB
C++
/*
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* Copyright 2007-2017 Content Management AG
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* All rights reserved.
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*
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* author: Max Kellermann <mk@cm4all.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef ODBUS_PENDING_CALL_HXX
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#define ODBUS_PENDING_CALL_HXX
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#include <dbus/dbus.h>
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#include <algorithm>
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#include <stdexcept>
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namespace ODBus {
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class PendingCall {
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DBusPendingCall *pending = nullptr;
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explicit PendingCall(DBusPendingCall *_pending) noexcept
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:pending(_pending) {}
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public:
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PendingCall() noexcept = default;
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PendingCall(PendingCall &&src) noexcept
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:pending(std::exchange(src.pending, nullptr)) {}
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~PendingCall() noexcept {
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if (pending != nullptr)
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dbus_pending_call_unref(pending);
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}
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operator bool() const noexcept {
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return pending;
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}
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DBusPendingCall *Get() noexcept {
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return pending;
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}
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PendingCall &operator=(PendingCall &&src) noexcept {
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std::swap(pending, src.pending);
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return *this;
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}
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static PendingCall SendWithReply(DBusConnection *connection,
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DBusMessage *message,
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int timeout_milliseconds=-1) {
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DBusPendingCall *pending;
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if (!dbus_connection_send_with_reply(connection,
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message,
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&pending,
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timeout_milliseconds))
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throw std::runtime_error("dbus_connection_send_with_reply() failed");
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if (pending == nullptr)
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throw std::runtime_error("dbus_connection_send_with_reply() failed with pending=NULL");
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return PendingCall(pending);
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}
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bool SetNotify(DBusPendingCallNotifyFunction function,
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void *user_data,
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DBusFreeFunction free_user_data=nullptr) noexcept {
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return dbus_pending_call_set_notify(pending,
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function, user_data,
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free_user_data);
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}
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void Cancel() noexcept {
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dbus_pending_call_cancel(pending);
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}
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void Block() noexcept {
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dbus_pending_call_block(pending);
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}
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};
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} /* namespace ODBus */
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#endif
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