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