162 lines
4.4 KiB
C++
162 lines
4.4 KiB
C++
// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2
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// Refer to the license.txt file included.
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#pragma once
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#include <algorithm>
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#include <vector>
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#include <map>
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#include <string>
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#include "common/common.h"
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#include "common/string_util.h"
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#include "core/mem_map.h"
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#include "core/hle/kernel/kernel.h"
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#include "core/hle/svc.h"
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// Namespace Service
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namespace Service {
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static const int kMaxPortSize = 0x08; ///< Maximum size of a port name (8 characters)
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static const int kCommandHeaderOffset = 0x80; ///< Offset into command buffer of header
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/**
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* Returns a pointer to the command buffer in kernel memory
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* @param offset Optional offset into command buffer
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* @return Pointer to command buffer
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*/
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inline static u32* GetCommandBuffer(const int offset=0) {
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return (u32*)Memory::GetPointer(Memory::KERNEL_MEMORY_VADDR + kCommandHeaderOffset + offset);
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}
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class Manager;
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/// Interface to a CTROS service
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class Interface : public Kernel::Object {
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friend class Manager;
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public:
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std::string GetName() const override { return GetPortName(); }
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std::string GetTypeName() const override { return GetPortName(); }
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static Kernel::HandleType GetStaticHandleType() { return Kernel::HandleType::Service; }
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Kernel::HandleType GetHandleType() const override { return Kernel::HandleType::Service; }
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typedef void (*Function)(Interface*);
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struct FunctionInfo {
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u32 id;
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Function func;
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std::string name;
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};
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/**
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* Gets the string name used by CTROS for a service
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* @return Port name of service
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*/
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virtual std::string GetPortName() const {
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return "[UNKNOWN SERVICE PORT]";
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}
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/// Allocates a new handle for the service
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Handle CreateHandle(Kernel::Object *obj) {
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Handle handle = Kernel::g_object_pool.Create(obj);
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m_handles.push_back(handle);
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return handle;
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}
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/// Frees a handle from the service
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template <class T>
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void DeleteHandle(const Handle handle) {
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Kernel::g_object_pool.Destroy<T>(handle);
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m_handles.erase(std::remove(m_handles.begin(), m_handles.end(), handle), m_handles.end());
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}
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ResultVal<bool> SyncRequest() override {
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u32* cmd_buff = GetCommandBuffer();
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auto itr = m_functions.find(cmd_buff[0]);
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if (itr == m_functions.end() || itr->second.func == nullptr) {
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// Number of params == bits 0-5 + bits 6-11
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int num_params = (cmd_buff[0] & 0x3F) + ((cmd_buff[0] >> 6) & 0x3F);
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std::string error = "unknown/unimplemented function '%s': port=%s";
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for (int i = 1; i <= num_params; ++i) {
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error += Common::StringFromFormat(", cmd_buff[%i]=%u", i, cmd_buff[i]);
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}
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std::string name = (itr == m_functions.end()) ? Common::StringFromFormat("0x%08X", cmd_buff[0]) : itr->second.name;
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LOG_ERROR(Service, error.c_str(), name.c_str(), GetPortName().c_str());
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// TODO(bunnei): Hack - ignore error
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cmd_buff[1] = 0;
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return MakeResult<bool>(false);
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}
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itr->second.func(this);
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return MakeResult<bool>(false); // TODO: Implement return from actual function
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}
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protected:
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/**
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* Registers the functions in the service
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*/
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void Register(const FunctionInfo* functions, int len) {
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for (int i = 0; i < len; i++) {
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m_functions[functions[i].id] = functions[i];
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}
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}
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private:
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std::vector<Handle> m_handles;
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std::map<u32, FunctionInfo> m_functions;
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};
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/// Simple class to manage accessing services from ports and UID handles
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class Manager {
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public:
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Manager();
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~Manager();
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/// Add a service to the manager (does not create it though)
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void AddService(Interface* service);
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/// Removes a service from the manager (does not delete it though)
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void DeleteService(const std::string& port_name);
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/// Get a Service Interface from its UID
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Interface* FetchFromHandle(u32 uid);
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/// Get a Service Interface from its port
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Interface* FetchFromPortName(const std::string& port_name);
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private:
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std::vector<Interface*> m_services;
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std::map<std::string, u32> m_port_map;
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};
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/// Initialize ServiceManager
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void Init();
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/// Shutdown ServiceManager
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void Shutdown();
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extern Manager* g_manager; ///< Service manager
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} // namespace
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