mirror of
https://github.com/RGBCube/serenity
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94ddb07e58
This avoids getting into the awkward situation where the socket is still part-owned by main() in multi-instance service. Also it just reads nicer.
103 lines
4.2 KiB
C++
103 lines
4.2 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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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 are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/Badge.h>
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#include <AK/SharedBuffer.h>
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#include <Clipboard/ClientConnection.h>
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#include <Clipboard/ClipboardClientEndpoint.h>
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#include <Clipboard/Storage.h>
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namespace Clipboard {
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static HashMap<int, RefPtr<ClientConnection>> s_connections;
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void ClientConnection::for_each_client(Function<void(ClientConnection&)> callback)
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{
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for (auto& it : s_connections) {
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callback(*it.value);
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}
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}
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ClientConnection::ClientConnection(NonnullRefPtr<Core::LocalSocket> socket, int client_id)
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: IPC::ClientConnection<ClipboardServerEndpoint>(*this, move(socket), client_id)
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{
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s_connections.set(client_id, *this);
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}
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ClientConnection::~ClientConnection()
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{
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}
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void ClientConnection::die()
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{
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s_connections.remove(client_id());
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}
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OwnPtr<Messages::ClipboardServer::GreetResponse> ClientConnection::handle(const Messages::ClipboardServer::Greet&)
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{
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return make<Messages::ClipboardServer::GreetResponse>(client_id());
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}
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OwnPtr<Messages::ClipboardServer::SetClipboardDataResponse> ClientConnection::handle(const Messages::ClipboardServer::SetClipboardData& message)
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{
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auto shared_buffer = SharedBuffer::create_from_shbuf_id(message.shbuf_id());
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if (!shared_buffer) {
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did_misbehave("SetClipboardData: Bad shared buffer ID");
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return nullptr;
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}
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Storage::the().set_data(*shared_buffer, message.data_size(), message.mime_type());
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return make<Messages::ClipboardServer::SetClipboardDataResponse>();
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}
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OwnPtr<Messages::ClipboardServer::GetClipboardDataResponse> ClientConnection::handle(const Messages::ClipboardServer::GetClipboardData&)
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{
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auto& storage = Storage::the();
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i32 shbuf_id = -1;
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if (storage.data_size()) {
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// FIXME: Optimize case where an app is copy/pasting within itself.
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// We can just reuse the SharedBuffer then, since it will have the same peer PID.
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// It would be even nicer if a SharedBuffer could have an arbitrary number of clients..
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RefPtr<SharedBuffer> shared_buffer = SharedBuffer::create_with_size(storage.data_size());
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ASSERT(shared_buffer);
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memcpy(shared_buffer->data(), storage.data(), storage.data_size());
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shared_buffer->seal();
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shared_buffer->share_with(client_pid());
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shbuf_id = shared_buffer->shbuf_id();
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// FIXME: This is a workaround for the fact that SharedBuffers will go away if neither side is retaining them.
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// After we respond to GetClipboardData, we have to wait for the client to ref the buffer on his side.
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m_last_sent_buffer = move(shared_buffer);
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}
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return make<Messages::ClipboardServer::GetClipboardDataResponse>(shbuf_id, storage.data_size(), storage.mime_type());
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}
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void ClientConnection::notify_about_clipboard_change()
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{
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post_message(Messages::ClipboardClient::ClipboardDataChanged(Storage::the().mime_type()));
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}
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}
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