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// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <algorithm>
#include <vector>
#include <map>
#include <string>
#include "common/common.h"
#include "common/string_util.h"
#include "core/mem_map.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/session.h"
#include "core/hle/svc.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// Namespace Service
namespace Service {
static const int kMaxPortSize = 8; ///< Maximum size of a port name (8 characters)
class Manager;
/// Interface to a CTROS service
class Interface : public Kernel::Session {
// 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.
friend class Manager;
/**
* Creates a function string for logging, complete with the name (or header code, depending
* on what's passed in) the port name, and all the cmd_buff arguments.
*/
std::string MakeFunctionString(const std::string& name, const std::string& port_name, const u32* cmd_buff) {
// Number of params == bits 0-5 + bits 6-11
int num_params = (cmd_buff[0] & 0x3F) + ((cmd_buff[0] >> 6) & 0x3F);
std::string function_string = Common::StringFromFormat("function '%s': port=%s", name.c_str(), port_name.c_str());
for (int i = 1; i <= num_params; ++i) {
function_string += Common::StringFromFormat(", cmd_buff[%i]=%u", i, cmd_buff[i]);
}
return function_string;
}
public:
std::string GetName() const override { return GetPortName(); }
typedef void (*Function)(Interface*);
struct FunctionInfo {
u32 id;
Function func;
std::string 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]";
}
/// Allocates a new handle for the service
Handle CreateHandle(Kernel::Object *obj) {
// TODO(yuriks): Fix error reporting
Handle handle = Kernel::g_handle_table.Create(obj).ValueOr(INVALID_HANDLE);
m_handles.push_back(handle);
return handle;
}
/// Frees a handle from the service
template <class T>
void DeleteHandle(const Handle handle) {
Kernel::g_handle_table.Close(handle);
m_handles.erase(std::remove(m_handles.begin(), m_handles.end(), handle), m_handles.end());
}
ResultVal<bool> SyncRequest() override {
u32* cmd_buff = Kernel::GetCommandBuffer();
auto itr = m_functions.find(cmd_buff[0]);
if (itr == m_functions.end() || itr->second.func == nullptr) {
std::string function_name = (itr == m_functions.end()) ? Common::StringFromFormat("0x%08X", cmd_buff[0]) : itr->second.name;
LOG_ERROR(Service, "%s %s", "unknown/unimplemented", MakeFunctionString(function_name, GetPortName(), cmd_buff).c_str());
// TODO(bunnei): Hack - ignore error
cmd_buff[1] = 0;
return MakeResult<bool>(false);
} else {
LOG_TRACE(Service, "%s", MakeFunctionString(itr->second.name, GetPortName(), cmd_buff).c_str());
}
itr->second.func(this);
return MakeResult<bool>(false); // TODO: Implement return from actual function
}
protected:
/**
* Registers the functions in the service
*/
void Register(const FunctionInfo* functions, int len) {
for (int i = 0; i < len; i++) {
m_functions[functions[i].id] = functions[i];
}
}
private:
std::vector<Handle> m_handles;
std::map<u32, FunctionInfo> m_functions;
};
/// Simple class to manage accessing services from ports and UID handles
class Manager {
public:
/// Add a service to the manager
void AddService(Interface* service);
/// Removes a service from the manager
void DeleteService(const std::string& port_name);
/// Get a Service Interface from its Handle
Interface* FetchFromHandle(Handle handle);
/// Get a Service Interface from its port
Interface* FetchFromPortName(const std::string& port_name);
private:
std::vector<Interface*> m_services;
std::map<std::string, u32> m_port_map;
};
/// Initialize ServiceManager
void Init();
/// Shutdown ServiceManager
void Shutdown();
extern Manager* g_manager; ///< Service manager
} // namespace
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