104 lines
3.8 KiB
C++
104 lines
3.8 KiB
C++
// 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) {
|
|
SharedPtr<ServerSession> server_session(new ServerSession);
|
|
|
|
server_session->name = std::move(name);
|
|
server_session->parent = nullptr;
|
|
|
|
return MakeResult(std::move(server_session));
|
|
}
|
|
|
|
bool ServerSession::ShouldWait(Thread* thread) const {
|
|
// Closed sessions should never wait, an error will be returned from svcReplyAndReceive.
|
|
if (parent->client == nullptr)
|
|
return false;
|
|
// Wait if we have no pending requests, or if we're currently handling a request.
|
|
return pending_requesting_threads.empty() || currently_handling != nullptr;
|
|
}
|
|
|
|
void ServerSession::Acquire(Thread* thread) {
|
|
ASSERT_MSG(!ShouldWait(thread), "object unavailable!");
|
|
// We are now handling a request, pop it from the stack.
|
|
// TODO(Subv): What happens if the client endpoint is closed before any requests are made?
|
|
ASSERT(!pending_requesting_threads.empty());
|
|
currently_handling = pending_requesting_threads.back();
|
|
pending_requesting_threads.pop_back();
|
|
}
|
|
|
|
ResultCode ServerSession::HandleSyncRequest(SharedPtr<Thread> thread) {
|
|
// 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.
|
|
} else {
|
|
// Add the thread to the list of threads that have issued a sync request with this
|
|
// server.
|
|
pending_requesting_threads.push_back(std::move(thread));
|
|
}
|
|
|
|
// If this ServerSession does not have an HLE implementation, just wake up the threads waiting
|
|
// on it.
|
|
WakeupAllWaitingThreads();
|
|
return RESULT_SUCCESS;
|
|
}
|
|
|
|
ServerSession::SessionPair ServerSession::CreateSessionPair(const std::string& name,
|
|
SharedPtr<ClientPort> port) {
|
|
auto server_session = ServerSession::Create(name + "_Server").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;
|
|
}
|
|
} // namespace Kernel
|