yuzu/src/core/hle/service/service.h
Subv 073653e858 Kernel/IPC: Use Ports and Sessions as the fundamental building block of Inter Process Communication.
All handles obtained via srv::GetServiceHandle or svcConnectToPort are references to ClientSessions.
Service modules will wait on the counterpart of those ClientSessions (Called ServerSessions) using svcReplyAndReceive or svcWaitSynchronization[1|N], and will be awoken when a SyncRequest is performed.

HLE Interfaces are now ClientPorts which override the HandleSyncRequest virtual member function to perform command handling immediately.
2016-11-30 23:02:05 -05:00

103 lines
3.1 KiB
C++

// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <cstddef>
#include <string>
#include <unordered_map>
#include <boost/container/flat_map.hpp>
#include "common/common_types.h"
#include "core/hle/kernel/client_port.h"
#include "core/hle/kernel/server_session.h"
#include "core/hle/result.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// Namespace Service
namespace Service {
static const int kMaxPortSize = 8; ///< Maximum size of a port name (8 characters)
static const u32 DefaultMaxSessions = 10; ///< Arbitrary default number of maximum connections to an HLE port
/// Interface to a CTROS service
class Interface : public Kernel::ClientPort {
// TODO(yuriks): An "Interface" being a Kernel::Object is mostly non-sense. Interface should be
// just something that encapsulates a session and acts as a helper to implement service
// processes.
public:
std::string GetName() const override {
return GetPortName();
}
virtual void SetVersion(u32 raw_version) {
version.raw = raw_version;
}
/**
* Gets the maximum allowed number of sessions that can be connected to this port at the same time.
* It should be overwritten by each service implementation for more fine-grained control.
* @returns The maximum number of connections allowed.
*/
virtual u32 GetMaxSessions() { return DefaultMaxSessions; }
void AddWaitingSession(Kernel::SharedPtr<Kernel::ServerSession> server_session) override { }
typedef void (*Function)(Interface*);
struct FunctionInfo {
u32 id;
Function func;
const char* name;
};
/**
* Gets the string name used by CTROS for a service
* @return Port name of service
*/
virtual std::string GetPortName() const {
return "[UNKNOWN SERVICE PORT]";
}
ResultCode HandleSyncRequest() override;
protected:
/**
* Registers the functions in the service
*/
template <size_t N>
inline void Register(const FunctionInfo (&functions)[N]) {
Register(functions, N);
}
void Register(const FunctionInfo* functions, size_t n);
union {
u32 raw;
BitField<0, 8, u32> major;
BitField<8, 8, u32> minor;
BitField<16, 8, u32> build;
BitField<24, 8, u32> revision;
} version = {};
private:
boost::container::flat_map<u32, FunctionInfo> m_functions;
};
/// Initialize ServiceManager
void Init();
/// Shutdown ServiceManager
void Shutdown();
/// Map of named ports managed by the kernel, which can be retrieved using the ConnectToPort SVC.
extern std::unordered_map<std::string, Kernel::SharedPtr<Kernel::ClientPort>> g_kernel_named_ports;
/// Map of services registered with the "srv:" service, retrieved using GetServiceHandle.
extern std::unordered_map<std::string, Kernel::SharedPtr<Kernel::ClientPort>> g_srv_services;
/// Adds a service to the services table
void AddService(Interface* interface_);
} // namespace