6354d08359
This allows attaching a HLE handle to a ServerPort at any point after it is created, allowing port/session creation to be generic between HLE and regular services.
93 lines
3.1 KiB
C++
93 lines
3.1 KiB
C++
// Copyright 2016 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <tuple>
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#include "core/hle/kernel/client_port.h"
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#include "core/hle/kernel/client_session.h"
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#include "core/hle/kernel/hle_ipc.h"
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#include "core/hle/kernel/server_session.h"
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#include "core/hle/kernel/session.h"
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#include "core/hle/kernel/thread.h"
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namespace Kernel {
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ServerSession::ServerSession() = default;
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ServerSession::~ServerSession() {
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// This destructor will be called automatically when the last ServerSession handle is closed by
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// the emulated application.
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// Decrease the port's connection count.
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if (parent->port)
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parent->port->active_sessions--;
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// TODO(Subv): Wake up all the ClientSession's waiting threads and set
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// the SendSyncRequest result to 0xC920181A.
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parent->server = nullptr;
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}
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ResultVal<SharedPtr<ServerSession>> ServerSession::Create(std::string name) {
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SharedPtr<ServerSession> server_session(new ServerSession);
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server_session->name = std::move(name);
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server_session->signaled = false;
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server_session->parent = nullptr;
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return MakeResult(std::move(server_session));
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}
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bool ServerSession::ShouldWait(Thread* thread) const {
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return !signaled;
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}
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void ServerSession::Acquire(Thread* thread) {
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ASSERT_MSG(!ShouldWait(thread), "object unavailable!");
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signaled = false;
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}
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ResultCode ServerSession::HandleSyncRequest() {
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// The ServerSession received a sync request, this means that there's new data available
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// from its ClientSession, so wake up any threads that may be waiting on a svcReplyAndReceive or
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// similar.
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// If this ServerSession has an associated HLE handler, forward the request to it.
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if (hle_handler != nullptr) {
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// Attempt to translate the incoming request's command buffer.
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ResultCode result = TranslateHLERequest(this);
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if (result.IsError())
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return result;
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hle_handler->HandleSyncRequest(SharedPtr<ServerSession>(this));
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// TODO(Subv): Translate the response command buffer.
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}
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// If this ServerSession does not have an HLE implementation, just wake up the threads waiting
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// on it.
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signaled = true;
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WakeupAllWaitingThreads();
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return RESULT_SUCCESS;
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}
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ServerSession::SessionPair ServerSession::CreateSessionPair(const std::string& name,
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SharedPtr<ClientPort> port) {
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auto server_session = ServerSession::Create(name + "_Server").MoveFrom();
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SharedPtr<ClientSession> client_session(new ClientSession);
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client_session->name = name + "_Client";
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std::shared_ptr<Session> parent(new Session);
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parent->client = client_session.get();
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parent->server = server_session.get();
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parent->port = port;
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client_session->parent = parent;
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server_session->parent = parent;
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return std::make_tuple(std::move(server_session), std::move(client_session));
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}
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ResultCode TranslateHLERequest(ServerSession* server_session) {
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// TODO(Subv): Implement this function once multiple concurrent processes are supported.
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return RESULT_SUCCESS;
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}
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}
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