citra/src/core/hle/service/service.h
Yuri Kunde Schlesner e321decf98 Remove SyncRequest from K::Object and create a new K::Session type
This is a first step at fixing the conceptual insanity that is our
handling of service and IPC calls. For now, interfaces still directly
derived from Session because we don't have the infrastructure to do it
properly. (That is, Processes and scheduling them.)
2014-12-15 18:26:17 -02:00

151 lines
4 KiB
C++

// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2
// 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;
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) {
Handle handle = Kernel::g_object_pool.Create(obj);
m_handles.push_back(handle);
return handle;
}
/// Frees a handle from the service
template <class T>
void DeleteHandle(const Handle handle) {
Kernel::g_object_pool.Destroy<T>(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) {
// Number of params == bits 0-5 + bits 6-11
int num_params = (cmd_buff[0] & 0x3F) + ((cmd_buff[0] >> 6) & 0x3F);
std::string error = "unknown/unimplemented function '%s': port=%s";
for (int i = 1; i <= num_params; ++i) {
error += Common::StringFromFormat(", cmd_buff[%i]=%u", i, cmd_buff[i]);
}
std::string name = (itr == m_functions.end()) ? Common::StringFromFormat("0x%08X", cmd_buff[0]) : itr->second.name;
LOG_ERROR(Service, error.c_str(), name.c_str(), GetPortName().c_str());
// TODO(bunnei): Hack - ignore error
cmd_buff[1] = 0;
return MakeResult<bool>(false);
}
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:
Manager();
~Manager();
/// Add a service to the manager (does not create it though)
void AddService(Interface* service);
/// Removes a service from the manager (does not delete it though)
void DeleteService(const std::string& port_name);
/// Get a Service Interface from its UID
Interface* FetchFromHandle(u32 uid);
/// 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