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A bit of a redesign.

Browse source 
Sessions and Ports are now detached from each other.
HLE services are handled by means of a SessionRequestHandler class, Interface now inherits from this class.
The File and Directory classes are no longer kernel objects, but SessionRequestHandlers instead, bound to a ServerSession when requested.
File::OpenLinkFile now creates a new session pair and binds the File instance to it.
This commit is contained in:
Subv 2016-11-30 22:50:13 -05:00
parent c5e7e0fa26
commit 009b15b3aa
13 changed files with 266 additions and 263 deletions
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14
src/core/hle/kernel/client_port.cpp
View file

@ -14,21 +14,7 @@ namespace Kernel {
ClientPort::ClientPort() {} ClientPort::ClientPort() {}
ClientPort::~ClientPort() {} ClientPort::~ClientPort() {}
Kernel::SharedPtr<ClientPort> ClientPort::CreateForHLE(u32 max_sessions, std::shared_ptr<Service::Interface> hle_interface) {
SharedPtr<ClientPort> client_port(new ClientPort);
client_port->max_sessions = max_sessions;
client_port->active_sessions = 0;
client_port->name = hle_interface->GetPortName();
client_port->hle_interface = std::move(hle_interface);
return client_port;
}
void ClientPort::AddWaitingSession(SharedPtr<ServerSession> server_session) { void ClientPort::AddWaitingSession(SharedPtr<ServerSession> server_session) {
// A port that has an associated HLE interface doesn't have a server port.
if (hle_interface != nullptr)
return;
server_port->pending_sessions.push_back(server_session); server_port->pending_sessions.push_back(server_session);
// Wake the threads waiting on the ServerPort // Wake the threads waiting on the ServerPort
server_port->WakeupAllWaitingThreads(); server_port->WakeupAllWaitingThreads();

12
src/core/hle/kernel/client_port.h
View file

@ -22,14 +22,6 @@ class ClientPort final : public Object {
public: public:
friend class ServerPort; friend class ServerPort;
/**
* Creates a serverless ClientPort that represents a bridge between the HLE implementation of a service/port and the emulated application.
* @param max_sessions Maximum number of sessions that this port is able to handle concurrently.
* @param hle_interface Interface object that implements the commands of the service.
* @returns ClientPort for the given HLE interface.
*/
static Kernel::SharedPtr<ClientPort> CreateForHLE(u32 max_sessions, std::shared_ptr<Service::Interface> hle_interface);
/** /**
* Adds the specified server session to the queue of pending sessions of the associated ServerPort * Adds the specified server session to the queue of pending sessions of the associated ServerPort
* @param server_session Server session to add to the queue * @param server_session Server session to add to the queue
@ -44,12 +36,10 @@ public:
return HANDLE_TYPE; return HANDLE_TYPE;
} }
SharedPtr<ServerPort> server_port = nullptr; ///< ServerPort associated with this client port. SharedPtr<ServerPort> server_port; ///< ServerPort associated with this client port.
u32 max_sessions; ///< Maximum number of simultaneous sessions the port can have u32 max_sessions; ///< Maximum number of simultaneous sessions the port can have
u32 active_sessions; ///< Number of currently open sessions to this port u32 active_sessions; ///< Number of currently open sessions to this port
std::string name; ///< Name of client port (optional) std::string name; ///< Name of client port (optional)
std::shared_ptr<Service::Interface> hle_interface = nullptr; ///< HLE implementation of this port's request handler
private: private:
ClientPort(); ClientPort();
~ClientPort() override; ~ClientPort() override;

16
src/core/hle/kernel/client_session.cpp
View file

@ -15,29 +15,17 @@ namespace Kernel {
ClientSession::ClientSession() {} ClientSession::ClientSession() {}
ClientSession::~ClientSession() {} ClientSession::~ClientSession() {}
ResultVal<SharedPtr<ClientSession>> ClientSession::Create(SharedPtr<ServerSession> server_session, SharedPtr<ClientPort> client_port, std::string name) { ResultVal<SharedPtr<ClientSession>> ClientSession::Create(SharedPtr<ServerSession> server_session, std::string name) {
SharedPtr<ClientSession> client_session(new ClientSession); SharedPtr<ClientSession> client_session(new ClientSession);
client_session->name = std::move(name); client_session->name = std::move(name);
client_session->server_session = server_session; client_session->server_session = server_session;
client_session->client_port = client_port;
client_session->hle_helper = client_port->hle_interface;
return MakeResult<SharedPtr<ClientSession>>(std::move(client_session)); return MakeResult<SharedPtr<ClientSession>>(std::move(client_session));
} }
ResultCode ClientSession::HandleSyncRequest() { ResultCode ClientSession::HandleSyncRequest() {
// Signal the server session that new data is available // Signal the server session that new data is available
ResultCode result = server_session->HandleSyncRequest(); return server_session->HandleSyncRequest();
if (result.IsError())
return result;
// If this ClientSession has an associated HLE helper, forward the request to it.
if (hle_helper != nullptr)
result = hle_helper->HandleSyncRequest(server_session);
return result;
} }
} // namespace } // namespace

5
src/core/hle/kernel/client_session.h
View file

@ -25,11 +25,10 @@ public:
/** /**
* Creates a client session. * Creates a client session.
* @param server_session The server session associated with this client session * @param server_session The server session associated with this client session
* @param client_port The client port which this session is connected to
* @param name Optional name of client session * @param name Optional name of client session
* @return The created client session * @return The created client session
*/ */
static ResultVal<SharedPtr<ClientSession>> Create(SharedPtr<ServerSession> server_session, SharedPtr<ClientPort> client_port, std::string name = "Unknown"); static ResultVal<SharedPtr<ClientSession>> Create(SharedPtr<ServerSession> server_session, std::string name = "Unknown");
std::string GetTypeName() const override { return "ClientSession"; } std::string GetTypeName() const override { return "ClientSession"; }
std::string GetName() const override { return name; } std::string GetName() const override { return name; }
@ -45,8 +44,6 @@ public:
std::string name; ///< Name of client port (optional) std::string name; ///< Name of client port (optional)
SharedPtr<ServerSession> server_session; ///< The server session associated with this client session. SharedPtr<ServerSession> server_session; ///< The server session associated with this client session.
SharedPtr<ClientPort> client_port; ///< The client port which this session is connected to.
std::shared_ptr<Service::Interface> hle_helper = nullptr; ///< HLE implementation of this port's request handler
private: private:
ClientSession(); ClientSession();

25
src/core/hle/kernel/server_session.cpp
View file

@ -14,11 +14,12 @@ namespace Kernel {
ServerSession::ServerSession() {} ServerSession::ServerSession() {}
ServerSession::~ServerSession() {} ServerSession::~ServerSession() {}
ResultVal<SharedPtr<ServerSession>> ServerSession::Create(std::string name) { ResultVal<SharedPtr<ServerSession>> ServerSession::Create(std::string name, std::shared_ptr<Service::SessionRequestHandler> hle_handler) {
SharedPtr<ServerSession> server_session(new ServerSession); SharedPtr<ServerSession> server_session(new ServerSession);
server_session->name = std::move(name); server_session->name = std::move(name);
server_session->signaled = false; server_session->signaled = false;
server_session->hle_handler = hle_handler;
return MakeResult<SharedPtr<ServerSession>>(std::move(server_session)); return MakeResult<SharedPtr<ServerSession>>(std::move(server_session));
} }
@ -34,23 +35,21 @@ void ServerSession::Acquire() {
ResultCode ServerSession::HandleSyncRequest() { ResultCode ServerSession::HandleSyncRequest() {
// The ServerSession received a sync request, this means that there's new data available // The ServerSession received a sync request, this means that there's new data available
// from one of its ClientSessions, so wake up any threads that may be waiting on a svcReplyAndReceive or similar. // 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)
return hle_handler->HandleSyncRequest(SharedPtr<ServerSession>(this));
// If this ServerSession does not have an HLE implementation, just wake up the threads waiting on it.
signaled = true; signaled = true;
WakeupAllWaitingThreads(); WakeupAllWaitingThreads();
return RESULT_SUCCESS; return RESULT_SUCCESS;
} }
SharedPtr<ClientSession> ServerSession::CreateClientSession() { std::tuple<SharedPtr<ServerSession>, SharedPtr<ClientSession>> ServerSession::CreateSessionPair(const std::string& name, std::shared_ptr<Service::SessionRequestHandler> hle_handler) {
// In Citra, some types of ServerSessions (File and Directory sessions) are not created as a pair of Server-Client sessions, auto server_session = ServerSession::Create(name + "Server", hle_handler).MoveFrom();
// but are instead created as a single ServerSession, which then hands over a ClientSession on demand (When opening the File or Directory). auto client_session = ClientSession::Create(server_session, name + "Client").MoveFrom();
// The real kernel (Or more specifically, the real FS service) does create the pair of Sessions at the same time (via svcCreateSession), and simply
// stores the ClientSession until it is needed.
return ClientSession::Create(SharedPtr<ServerSession>(this), nullptr, name + "Client").MoveFrom();
}
std::tuple<SharedPtr<ServerSession>, SharedPtr<ClientSession>> ServerSession::CreateSessionPair(SharedPtr<ClientPort> client_port, const std::string& name) {
auto server_session = ServerSession::Create(name + "Server").MoveFrom();
auto client_session = ClientSession::Create(server_session, client_port, name + "Client").MoveFrom();
return std::make_tuple(server_session, client_session); return std::make_tuple(server_session, client_session);
} }

167
src/core/hle/kernel/server_session.h
View file

@ -10,158 +10,11 @@
#include "core/hle/kernel/kernel.h" #include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/thread.h" #include "core/hle/kernel/thread.h"
#include "core/hle/result.h" #include "core/hle/result.h"
#include "core/hle/service/service.h"
#include "core/memory.h" #include "core/memory.h"
namespace IPC {
enum DescriptorType : u32 {
// Buffer related desciptors types (mask : 0x0F)
StaticBuffer = 0x02,
PXIBuffer = 0x04,
MappedBuffer = 0x08,
// Handle related descriptors types (mask : 0x30, but need to check for buffer related
// descriptors first )
CopyHandle = 0x00,
MoveHandle = 0x10,
CallingPid = 0x20,
};
/**
* @brief Creates a command header to be used for IPC
* @param command_id ID of the command to create a header for.
* @param normal_params Size of the normal parameters in words. Up to 63.
* @param translate_params_size Size of the translate parameters in words. Up to 63.
* @return The created IPC header.
*
* Normal parameters are sent directly to the process while the translate parameters might go
* through modifications and checks by the kernel.
* The translate parameters are described by headers generated with the IPC::*Desc functions.
*
* @note While #normal_params is equivalent to the number of normal parameters,
* #translate_params_size includes the size occupied by the translate parameters headers.
*/
constexpr u32 MakeHeader(u16 command_id, unsigned int normal_params,
unsigned int translate_params_size) {
return (u32(command_id) << 16) | ((u32(normal_params) & 0x3F) << 6) |
(u32(translate_params_size) & 0x3F);
}
union Header {
u32 raw;
BitField<0, 6, u32> translate_params_size;
BitField<6, 6, u32> normal_params;
BitField<16, 16, u32> command_id;
};
inline Header ParseHeader(u32 header) {
return {header};
}
constexpr u32 MoveHandleDesc(u32 num_handles = 1) {
return MoveHandle | ((num_handles - 1) << 26);
}
constexpr u32 CopyHandleDesc(u32 num_handles = 1) {
return CopyHandle | ((num_handles - 1) << 26);
}
constexpr u32 CallingPidDesc() {
return CallingPid;
}
constexpr bool isHandleDescriptor(u32 descriptor) {
return (descriptor & 0xF) == 0x0;
}
constexpr u32 HandleNumberFromDesc(u32 handle_descriptor) {
return (handle_descriptor >> 26) + 1;
}
constexpr u32 StaticBufferDesc(u32 size, u8 buffer_id) {
return StaticBuffer | (size << 14) | ((buffer_id & 0xF) << 10);
}
union StaticBufferDescInfo {
u32 raw;
BitField<10, 4, u32> buffer_id;
BitField<14, 18, u32> size;
};
inline StaticBufferDescInfo ParseStaticBufferDesc(const u32 desc) {
return {desc};
}
/**
* @brief Creates a header describing a buffer to be sent over PXI.
* @param size Size of the buffer. Max 0x00FFFFFF.
* @param buffer_id The Id of the buffer. Max 0xF.
* @param is_read_only true if the buffer is read-only. If false, the buffer is considered to have
* read-write access.
* @return The created PXI buffer header.
*
* The next value is a phys-address of a table located in the BASE memregion.
*/
inline u32 PXIBufferDesc(u32 size, unsigned buffer_id, bool is_read_only) {
u32 type = PXIBuffer;
if (is_read_only)
type |= 0x2;
return type | (size << 8) | ((buffer_id & 0xF) << 4);
}
enum MappedBufferPermissions {
R = 1,
W = 2,
RW = R | W,
};
constexpr u32 MappedBufferDesc(u32 size, MappedBufferPermissions perms) {
return MappedBuffer | (size << 4) | (u32(perms) << 1);
}
union MappedBufferDescInfo {
u32 raw;
BitField<4, 28, u32> size;
BitField<1, 2, MappedBufferPermissions> perms;
};
inline MappedBufferDescInfo ParseMappedBufferDesc(const u32 desc) {
return {desc};
}
inline DescriptorType GetDescriptorType(u32 descriptor) {
// Note: Those checks must be done in this order
if (isHandleDescriptor(descriptor))
return (DescriptorType)(descriptor & 0x30);
// handle the fact that the following descriptors can have rights
if (descriptor & MappedBuffer)
return MappedBuffer;
if (descriptor & PXIBuffer)
return PXIBuffer;
return StaticBuffer;
}
} // namespace IPC
namespace Kernel { namespace Kernel {
static const int kCommandHeaderOffset = 0x80; ///< Offset into command buffer of header
/**
* Returns a pointer to the command buffer in the current thread's TLS
* TODO(Subv): This is not entirely correct, the command buffer should be copied from
* the thread's TLS to an intermediate buffer in kernel memory, and then copied again to
* the service handler process' memory.
* @param offset Optional offset into command buffer
* @return Pointer to command buffer
*/
inline u32* GetCommandBuffer(const int offset = 0) {
return (u32*)Memory::GetPointer(GetCurrentThread()->GetTLSAddress() + kCommandHeaderOffset +
offset);
}
class ClientSession; class ClientSession;
class ClientPort; class ClientPort;
@ -183,11 +36,13 @@ public:
~ServerSession() override; ~ServerSession() override;
/** /**
* Creates a server session. * Creates a server session. The server session can have an optional HLE handler,
* @param name Optional name of the server session * which will be invoked to handle the IPC requests that this session receives.
* @param name Optional name of the server session.
* @param hle_handler Optional HLE handler for this server session.
* @return The created server session * @return The created server session
*/ */
static ResultVal<SharedPtr<ServerSession>> Create(std::string name = "Unknown"); static ResultVal<SharedPtr<ServerSession>> Create(std::string name = "Unknown", std::shared_ptr<Service::SessionRequestHandler> hle_handler = nullptr);
std::string GetTypeName() const override { return "ServerSession"; } std::string GetTypeName() const override { return "ServerSession"; }
@ -196,17 +51,10 @@ public:
/** /**
* Creates a pair of ServerSession and an associated ClientSession. * Creates a pair of ServerSession and an associated ClientSession.
* @param client_port ClientPort to which the sessions are connected
* @param name Optional name of the ports * @param name Optional name of the ports
* @return The created session tuple * @return The created session tuple
*/ */
static std::tuple<SharedPtr<ServerSession>, SharedPtr<ClientSession>> CreateSessionPair(SharedPtr<ClientPort> client_port, const std::string& name = "Unknown"); static std::tuple<SharedPtr<ServerSession>, SharedPtr<ClientSession>> CreateSessionPair(const std::string& name = "Unknown", std::shared_ptr<Service::SessionRequestHandler> hle_handler = nullptr);
/**
* Creates a portless ClientSession and associates it with this ServerSession.
* @returns ClientSession The newly created ClientSession.
*/
SharedPtr<ClientSession> CreateClientSession();
/** /**
* Handle a sync request from the emulated application. * Handle a sync request from the emulated application.
@ -221,5 +69,6 @@ public:
std::string name; ///< The name of this session (optional) std::string name; ///< The name of this session (optional)
bool signaled; ///< Whether there's new data available to this ServerSession bool signaled; ///< Whether there's new data available to this ServerSession
std::shared_ptr<Service::SessionRequestHandler> hle_handler; ///< This session's HLE request handler (optional)
}; };
} }

35
src/core/hle/service/fs/archive.cpp
View file

@ -23,10 +23,11 @@
#include "core/file_sys/directory_backend.h" #include "core/file_sys/directory_backend.h"
#include "core/file_sys/file_backend.h" #include "core/file_sys/file_backend.h"
#include "core/hle/hle.h" #include "core/hle/hle.h"
#include "core/hle/kernel/client_session.h"
#include "core/hle/result.h" #include "core/hle/result.h"
#include "core/hle/service/service.h"
#include "core/hle/service/fs/archive.h" #include "core/hle/service/fs/archive.h"
#include "core/hle/service/fs/fs_user.h" #include "core/hle/service/fs/fs_user.h"
#include "core/hle/service/service.h"
#include "core/memory.h" #include "core/memory.h"
// Specializes std::hash for ArchiveIdCode, so that we can use it in std::unordered_map. // Specializes std::hash for ArchiveIdCode, so that we can use it in std::unordered_map.
@ -92,11 +93,10 @@ File::File(std::unique_ptr<FileSys::FileBackend>&& backend, const FileSys::Path&
File::~File() {} File::~File() {}
ResultCode File::HandleSyncRequest() { ResultCode File::HandleSyncRequest(Kernel::SharedPtr<Kernel::ServerSession> server_session) {
u32* cmd_buff = Kernel::GetCommandBuffer(); u32* cmd_buff = Kernel::GetCommandBuffer();
FileCommand cmd = static_cast<FileCommand>(cmd_buff[0]); FileCommand cmd = static_cast<FileCommand>(cmd_buff[0]);
switch (cmd) { switch (cmd) {
// Read from file... // Read from file...
case FileCommand::Read: { case FileCommand::Read: {
u64 offset = cmd_buff[1] | ((u64)cmd_buff[2]) << 32; u64 offset = cmd_buff[1] | ((u64)cmd_buff[2]) << 32;
@ -170,9 +170,11 @@ ResultCode File::HandleSyncRequest() {
break; break;
} }
case FileCommand::OpenLinkFile: { case FileCommand::OpenLinkFile:
{
LOG_WARNING(Service_FS, "(STUBBED) File command OpenLinkFile %s", GetName().c_str()); LOG_WARNING(Service_FS, "(STUBBED) File command OpenLinkFile %s", GetName().c_str());
cmd_buff[3] = Kernel::g_handle_table.Create(this).ValueOr(INVALID_HANDLE); auto sessions = Kernel::ServerSession::CreateSessionPair(GetName(), shared_from_this());
cmd_buff[3] = Kernel::g_handle_table.Create(std::get<Kernel::SharedPtr<Kernel::ClientSession>>(sessions)).ValueOr(INVALID_HANDLE);
break; break;
} }
@ -193,10 +195,10 @@ ResultCode File::HandleSyncRequest() {
LOG_ERROR(Service_FS, "Unknown command=0x%08X!", cmd); LOG_ERROR(Service_FS, "Unknown command=0x%08X!", cmd);
ResultCode error = UnimplementedFunction(ErrorModule::FS); ResultCode error = UnimplementedFunction(ErrorModule::FS);
cmd_buff[1] = error.raw; // TODO(Link Mauve): use the correct error code for that. cmd_buff[1] = error.raw; // TODO(Link Mauve): use the correct error code for that.
return ServerSession::HandleSyncRequest(); return RESULT_SUCCESS;
} }
cmd_buff[1] = RESULT_SUCCESS.raw; // No error cmd_buff[1] = RESULT_SUCCESS.raw; // No error
return ServerSession::HandleSyncRequest(); return RESULT_SUCCESS;
} }
Directory::Directory(std::unique_ptr<FileSys::DirectoryBackend>&& backend, Directory::Directory(std::unique_ptr<FileSys::DirectoryBackend>&& backend,
@ -205,11 +207,10 @@ Directory::Directory(std::unique_ptr<FileSys::DirectoryBackend>&& backend,
Directory::~Directory() {} Directory::~Directory() {}
ResultCode Directory::HandleSyncRequest() { ResultCode Directory::HandleSyncRequest(Kernel::SharedPtr<Kernel::ServerSession> server_session) {
u32* cmd_buff = Kernel::GetCommandBuffer(); u32* cmd_buff = Kernel::GetCommandBuffer();
DirectoryCommand cmd = static_cast<DirectoryCommand>(cmd_buff[0]); DirectoryCommand cmd = static_cast<DirectoryCommand>(cmd_buff[0]);
switch (cmd) { switch (cmd) {
// Read from directory... // Read from directory...
case DirectoryCommand::Read: { case DirectoryCommand::Read: {
u32 count = cmd_buff[1]; u32 count = cmd_buff[1];
@ -236,10 +237,10 @@ ResultCode Directory::HandleSyncRequest() {
LOG_ERROR(Service_FS, "Unknown command=0x%08X!", cmd); LOG_ERROR(Service_FS, "Unknown command=0x%08X!", cmd);
ResultCode error = UnimplementedFunction(ErrorModule::FS); ResultCode error = UnimplementedFunction(ErrorModule::FS);
cmd_buff[1] = error.raw; // TODO(Link Mauve): use the correct error code for that. cmd_buff[1] = error.raw; // TODO(Link Mauve): use the correct error code for that.
return ServerSession::HandleSyncRequest(); return RESULT_SUCCESS;
} }
cmd_buff[1] = RESULT_SUCCESS.raw; // No error cmd_buff[1] = RESULT_SUCCESS.raw; // No error
return ServerSession::HandleSyncRequest(); return RESULT_SUCCESS;
} }
//////////////////////////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////////////////////////
@ -306,7 +307,7 @@ ResultCode RegisterArchiveType(std::unique_ptr<FileSys::ArchiveFactory>&& factor
return RESULT_SUCCESS; return RESULT_SUCCESS;
} }
ResultVal<Kernel::SharedPtr<File>> OpenFileFromArchive(ArchiveHandle archive_handle, ResultVal<std::shared_ptr<File>> OpenFileFromArchive(ArchiveHandle archive_handle,
const FileSys::Path& path, const FileSys::Path& path,
const FileSys::Mode mode) { const FileSys::Mode mode) {
ArchiveBackend* archive = GetArchive(archive_handle); ArchiveBackend* archive = GetArchive(archive_handle);
@ -317,8 +318,8 @@ ResultVal<Kernel::SharedPtr<File>> OpenFileFromArchive(ArchiveHandle archive_han
if (backend.Failed()) if (backend.Failed())
return backend.Code(); return backend.Code();
auto file = Kernel::SharedPtr<File>(new File(backend.MoveFrom(), path)); auto file = std::shared_ptr<File>(new File(backend.MoveFrom(), path));
return MakeResult<Kernel::SharedPtr<File>>(std::move(file)); return MakeResult<std::shared_ptr<File>>(std::move(file));
} }
ResultCode DeleteFileFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path) { ResultCode DeleteFileFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path) {
@ -397,7 +398,7 @@ ResultCode RenameDirectoryBetweenArchives(ArchiveHandle src_archive_handle,
} }
} }
ResultVal<Kernel::SharedPtr<Directory>> OpenDirectoryFromArchive(ArchiveHandle archive_handle, ResultVal<std::shared_ptr<Directory>> OpenDirectoryFromArchive(ArchiveHandle archive_handle,
const FileSys::Path& path) { const FileSys::Path& path) {
ArchiveBackend* archive = GetArchive(archive_handle); ArchiveBackend* archive = GetArchive(archive_handle);
if (archive == nullptr) if (archive == nullptr)
@ -407,8 +408,8 @@ ResultVal<Kernel::SharedPtr<Directory>> OpenDirectoryFromArchive(ArchiveHandle a
if (backend.Failed()) if (backend.Failed())
return backend.Code(); return backend.Code();
auto directory = Kernel::SharedPtr<Directory>(new Directory(backend.MoveFrom(), path)); auto directory = std::shared_ptr<Directory>(new Directory(backend.MoveFrom(), path));
return MakeResult<Kernel::SharedPtr<Directory>>(std::move(directory)); return MakeResult<std::shared_ptr<Directory>>(std::move(directory));
} }
ResultVal<u64> GetFreeBytesInArchive(ArchiveHandle archive_handle) { ResultVal<u64> GetFreeBytesInArchive(ArchiveHandle archive_handle) {

20
src/core/hle/service/fs/archive.h
View file

@ -41,32 +41,32 @@ enum class MediaType : u32 { NAND = 0, SDMC = 1 };
typedef u64 ArchiveHandle; typedef u64 ArchiveHandle;
class File : public Kernel::ServerSession { class File : public SessionRequestHandler, public std::enable_shared_from_this<File> {
public: public:
File(std::unique_ptr<FileSys::FileBackend>&& backend, const FileSys::Path& path); File(std::unique_ptr<FileSys::FileBackend>&& backend, const FileSys::Path& path);
~File(); ~File();
std::string GetName() const override { std::string GetName() const {
return "Path: " + path.DebugStr(); return "Path: " + path.DebugStr();
} }
ResultCode HandleSyncRequest() override; ResultCode HandleSyncRequest(Kernel::SharedPtr<Kernel::ServerSession> server_session) override;
FileSys::Path path; ///< Path of the file FileSys::Path path; ///< Path of the file
u32 priority; ///< Priority of the file. TODO(Subv): Find out what this means u32 priority; ///< Priority of the file. TODO(Subv): Find out what this means
std::unique_ptr<FileSys::FileBackend> backend; ///< File backend interface std::unique_ptr<FileSys::FileBackend> backend; ///< File backend interface
}; };
class Directory : public Kernel::ServerSession { class Directory : public SessionRequestHandler {
public: public:
Directory(std::unique_ptr<FileSys::DirectoryBackend>&& backend, const FileSys::Path& path); Directory(std::unique_ptr<FileSys::DirectoryBackend>&& backend, const FileSys::Path& path);
~Directory(); ~Directory();
std::string GetName() const override { std::string GetName() const {
return "Directory: " + path.DebugStr(); return "Directory: " + path.DebugStr();
} }
ResultCode HandleSyncRequest() override; ResultCode HandleSyncRequest(Kernel::SharedPtr<Kernel::ServerSession> server_session) override;
FileSys::Path path; ///< Path of the directory FileSys::Path path; ///< Path of the directory
std::unique_ptr<FileSys::DirectoryBackend> backend; ///< File backend interface std::unique_ptr<FileSys::DirectoryBackend> backend; ///< File backend interface
@ -99,9 +99,9 @@ ResultCode RegisterArchiveType(std::unique_ptr<FileSys::ArchiveFactory>&& factor
* @param archive_handle Handle to an open Archive object * @param archive_handle Handle to an open Archive object
* @param path Path to the File inside of the Archive * @param path Path to the File inside of the Archive
* @param mode Mode under which to open the File * @param mode Mode under which to open the File
* @return The opened File object as a Session * @return The opened File object
*/ */
ResultVal<Kernel::SharedPtr<File>> OpenFileFromArchive(ArchiveHandle archive_handle, ResultVal<std::shared_ptr<File>> OpenFileFromArchive(ArchiveHandle archive_handle,
const FileSys::Path& path, const FileSys::Path& path,
const FileSys::Mode mode); const FileSys::Mode mode);
@ -178,9 +178,9 @@ ResultCode RenameDirectoryBetweenArchives(ArchiveHandle src_archive_handle,
* Open a Directory from an Archive * Open a Directory from an Archive
* @param archive_handle Handle to an open Archive object * @param archive_handle Handle to an open Archive object
* @param path Path to the Directory inside of the Archive * @param path Path to the Directory inside of the Archive
* @return The opened Directory object as a Session * @return The opened Directory object
*/ */
ResultVal<Kernel::SharedPtr<Directory>> OpenDirectoryFromArchive(ArchiveHandle archive_handle, ResultVal<std::shared_ptr<Directory>> OpenDirectoryFromArchive(ArchiveHandle archive_handle,
const FileSys::Path& path); const FileSys::Path& path);
/** /**

18
src/core/hle/service/fs/fs_user.cpp
View file

@ -68,10 +68,12 @@ static void OpenFile(Service::Interface* self) {
LOG_DEBUG(Service_FS, "path=%s, mode=%u attrs=%u", file_path.DebugStr().c_str(), mode.hex, LOG_DEBUG(Service_FS, "path=%s, mode=%u attrs=%u", file_path.DebugStr().c_str(), mode.hex,
attributes); attributes);
ResultVal<SharedPtr<File>> file_res = OpenFileFromArchive(archive_handle, file_path, mode); ResultVal<std::shared_ptr<File>> file_res = OpenFileFromArchive(archive_handle, file_path, mode);
cmd_buff[1] = file_res.Code().raw; cmd_buff[1] = file_res.Code().raw;
if (file_res.Succeeded()) { if (file_res.Succeeded()) {
cmd_buff[3] = Kernel::g_handle_table.Create((*file_res)->CreateClientSession()).MoveFrom(); std::shared_ptr<File> file = *file_res;
auto sessions = ServerSession::CreateSessionPair(file->GetName(), file);
cmd_buff[3] = Kernel::g_handle_table.Create(std::get<Kernel::SharedPtr<Kernel::ClientSession>>(sessions)).MoveFrom();
} else { } else {
cmd_buff[3] = 0; cmd_buff[3] = 0;
LOG_ERROR(Service_FS, "failed to get a handle for file %s", file_path.DebugStr().c_str()); LOG_ERROR(Service_FS, "failed to get a handle for file %s", file_path.DebugStr().c_str());
@ -128,10 +130,12 @@ static void OpenFileDirectly(Service::Interface* self) {
} }
SCOPE_EXIT({ CloseArchive(*archive_handle); }); SCOPE_EXIT({ CloseArchive(*archive_handle); });
ResultVal<SharedPtr<File>> file_res = OpenFileFromArchive(*archive_handle, file_path, mode); ResultVal<std::shared_ptr<File>> file_res = OpenFileFromArchive(*archive_handle, file_path, mode);
cmd_buff[1] = file_res.Code().raw; cmd_buff[1] = file_res.Code().raw;
if (file_res.Succeeded()) { if (file_res.Succeeded()) {
cmd_buff[3] = Kernel::g_handle_table.Create((*file_res)->CreateClientSession()).MoveFrom(); std::shared_ptr<File> file = *file_res;
auto sessions = ServerSession::CreateSessionPair(file->GetName(), file);
cmd_buff[3] = Kernel::g_handle_table.Create(std::get<Kernel::SharedPtr<Kernel::ClientSession>>(sessions)).MoveFrom();
} else { } else {
cmd_buff[3] = 0; cmd_buff[3] = 0;
LOG_ERROR(Service_FS, "failed to get a handle for file %s mode=%u attributes=%u", LOG_ERROR(Service_FS, "failed to get a handle for file %s mode=%u attributes=%u",
@ -389,10 +393,12 @@ static void OpenDirectory(Service::Interface* self) {
LOG_DEBUG(Service_FS, "type=%u size=%u data=%s", static_cast<u32>(dirname_type), dirname_size, LOG_DEBUG(Service_FS, "type=%u size=%u data=%s", static_cast<u32>(dirname_type), dirname_size,
dir_path.DebugStr().c_str()); dir_path.DebugStr().c_str());
ResultVal<SharedPtr<Directory>> dir_res = OpenDirectoryFromArchive(archive_handle, dir_path); ResultVal<std::shared_ptr<Directory>> dir_res = OpenDirectoryFromArchive(archive_handle, dir_path);
cmd_buff[1] = dir_res.Code().raw; cmd_buff[1] = dir_res.Code().raw;
if (dir_res.Succeeded()) { if (dir_res.Succeeded()) {
cmd_buff[3] = Kernel::g_handle_table.Create((*dir_res)->CreateClientSession()).MoveFrom(); std::shared_ptr<Directory> directory = *dir_res;
auto sessions = ServerSession::CreateSessionPair(directory->GetName(), directory);
cmd_buff[3] = Kernel::g_handle_table.Create(std::get<Kernel::SharedPtr<Kernel::ClientSession>>(sessions)).MoveFrom();
} else { } else {
LOG_ERROR(Service_FS, "failed to get a handle for directory type=%d size=%d data=%s", LOG_ERROR(Service_FS, "failed to get a handle for directory type=%d size=%d data=%s",
dirname_type, dirname_size, dir_path.DebugStr().c_str()); dirname_type, dirname_size, dir_path.DebugStr().c_str());

17
src/core/hle/service/service.cpp
View file

@ -4,6 +4,9 @@
#include "common/logging/log.h" #include "common/logging/log.h"
#include "common/string_util.h" #include "common/string_util.h"
#include "core/hle/kernel/server_port.h"
#include "core/hle/service/service.h"
#include "core/hle/service/ac_u.h" #include "core/hle/service/ac_u.h"
#include "core/hle/service/act_a.h" #include "core/hle/service/act_a.h"
#include "core/hle/service/act_u.h" #include "core/hle/service/act_u.h"
@ -41,8 +44,8 @@
namespace Service { namespace Service {
std::unordered_map<std::string, Kernel::SharedPtr<Kernel::ClientPort>> g_kernel_named_ports; std::unordered_map<std::string, std::tuple<Kernel::SharedPtr<Kernel::ClientPort>, std::shared_ptr<Interface>>> g_kernel_named_ports;
std::unordered_map<std::string, Kernel::SharedPtr<Kernel::ClientPort>> g_srv_services; std::unordered_map<std::string, std::tuple<Kernel::SharedPtr<Kernel::ClientPort>, std::shared_ptr<Interface>>> g_srv_services;
/** /**
* Creates a function string for logging, complete with the name (or header code, depending * Creates a function string for logging, complete with the name (or header code, depending
@ -99,13 +102,15 @@ void Interface::Register(const FunctionInfo* functions, size_t n) {
// Module interface // Module interface
static void AddNamedPort(Interface* interface_) { static void AddNamedPort(Interface* interface_) {
auto client_port = Kernel::ClientPort::CreateForHLE(interface_->GetMaxSessions(), std::shared_ptr<Interface>(interface_)); auto ports = Kernel::ServerPort::CreatePortPair(interface_->GetMaxSessions(), interface_->GetPortName());
g_kernel_named_ports.emplace(interface_->GetPortName(), client_port); auto client_port = std::get<Kernel::SharedPtr<Kernel::ClientPort>>(ports);
g_kernel_named_ports.emplace(interface_->GetPortName(), std::make_tuple(client_port, std::shared_ptr<Interface>(interface_)));
} }
void AddService(Interface* interface_) { void AddService(Interface* interface_) {
auto client_port = Kernel::ClientPort::CreateForHLE(interface_->GetMaxSessions(), std::shared_ptr<Interface>(interface_)); auto ports = Kernel::ServerPort::CreatePortPair(interface_->GetMaxSessions(), interface_->GetPortName());
g_srv_services.emplace(interface_->GetPortName(), client_port); auto client_port = std::get<Kernel::SharedPtr<Kernel::ClientPort>>(ports);
g_srv_services.emplace(interface_->GetPortName(), std::make_tuple(client_port, std::shared_ptr<Interface>(interface_)));
} }
/// Initialize ServiceManager /// Initialize ServiceManager

179
src/core/hle/service/service.h
View file

@ -10,8 +10,163 @@
#include <boost/container/flat_map.hpp> #include <boost/container/flat_map.hpp>
#include "common/common_types.h" #include "common/common_types.h"
#include "core/hle/kernel/client_port.h" #include "core/hle/kernel/client_port.h"
#include "core/hle/kernel/server_session.h" #include "core/hle/kernel/thread.h"
#include "core/hle/result.h" #include "core/hle/result.h"
#include "core/memory.h"
namespace Kernel {
class ServerSession;
// TODO(Subv): Move these declarations out of here
static const int kCommandHeaderOffset = 0x80; ///< Offset into command buffer of header
/**
* Returns a pointer to the command buffer in the current thread's TLS
* TODO(Subv): This is not entirely correct, the command buffer should be copied from
* the thread's TLS to an intermediate buffer in kernel memory, and then copied again to
* the service handler process' memory.
* @param offset Optional offset into command buffer
* @return Pointer to command buffer
*/
inline u32* GetCommandBuffer(const int offset = 0) {
return (u32*)Memory::GetPointer(GetCurrentThread()->GetTLSAddress() + kCommandHeaderOffset +
offset);
}
}
// TODO(Subv): Move this namespace out of here
namespace IPC {
enum DescriptorType : u32 {
// Buffer related desciptors types (mask : 0x0F)
StaticBuffer = 0x02,
PXIBuffer = 0x04,
MappedBuffer = 0x08,
// Handle related descriptors types (mask : 0x30, but need to check for buffer related
// descriptors first )
CopyHandle = 0x00,
MoveHandle = 0x10,
CallingPid = 0x20,
};
/**
* @brief Creates a command header to be used for IPC
* @param command_id ID of the command to create a header for.
* @param normal_params Size of the normal parameters in words. Up to 63.
* @param translate_params_size Size of the translate parameters in words. Up to 63.
* @return The created IPC header.
*
* Normal parameters are sent directly to the process while the translate parameters might go
* through modifications and checks by the kernel.
* The translate parameters are described by headers generated with the IPC::*Desc functions.
*
* @note While #normal_params is equivalent to the number of normal parameters,
* #translate_params_size includes the size occupied by the translate parameters headers.
*/
constexpr u32 MakeHeader(u16 command_id, unsigned int normal_params,
unsigned int translate_params_size) {
return (u32(command_id) << 16) | ((u32(normal_params) & 0x3F) << 6) |
(u32(translate_params_size) & 0x3F);
}
union Header {
u32 raw;
BitField<0, 6, u32> translate_params_size;
BitField<6, 6, u32> normal_params;
BitField<16, 16, u32> command_id;
};
inline Header ParseHeader(u32 header) {
return{ header };
}
constexpr u32 MoveHandleDesc(u32 num_handles = 1) {
return MoveHandle | ((num_handles - 1) << 26);
}
constexpr u32 CopyHandleDesc(u32 num_handles = 1) {
return CopyHandle | ((num_handles - 1) << 26);
}
constexpr u32 CallingPidDesc() {
return CallingPid;
}
constexpr bool isHandleDescriptor(u32 descriptor) {
return (descriptor & 0xF) == 0x0;
}
constexpr u32 HandleNumberFromDesc(u32 handle_descriptor) {
return (handle_descriptor >> 26) + 1;
}
constexpr u32 StaticBufferDesc(u32 size, u8 buffer_id) {
return StaticBuffer | (size << 14) | ((buffer_id & 0xF) << 10);
}
union StaticBufferDescInfo {
u32 raw;
BitField<10, 4, u32> buffer_id;
BitField<14, 18, u32> size;
};
inline StaticBufferDescInfo ParseStaticBufferDesc(const u32 desc) {
return{ desc };
}
/**
* @brief Creates a header describing a buffer to be sent over PXI.
* @param size Size of the buffer. Max 0x00FFFFFF.
* @param buffer_id The Id of the buffer. Max 0xF.
* @param is_read_only true if the buffer is read-only. If false, the buffer is considered to have
* read-write access.
* @return The created PXI buffer header.
*
* The next value is a phys-address of a table located in the BASE memregion.
*/
inline u32 PXIBufferDesc(u32 size, unsigned buffer_id, bool is_read_only) {
u32 type = PXIBuffer;
if (is_read_only)
type |= 0x2;
return type | (size << 8) | ((buffer_id & 0xF) << 4);
}
enum MappedBufferPermissions {
R = 1,
W = 2,
RW = R | W,
};
constexpr u32 MappedBufferDesc(u32 size, MappedBufferPermissions perms) {
return MappedBuffer | (size << 4) | (u32(perms) << 1);
}
union MappedBufferDescInfo {
u32 raw;
BitField<4, 28, u32> size;
BitField<1, 2, MappedBufferPermissions> perms;
};
inline MappedBufferDescInfo ParseMappedBufferDesc(const u32 desc) {
return{ desc };
}
inline DescriptorType GetDescriptorType(u32 descriptor) {
// Note: Those checks must be done in this order
if (isHandleDescriptor(descriptor))
return (DescriptorType)(descriptor & 0x30);
// handle the fact that the following descriptors can have rights
if (descriptor & MappedBuffer)
return MappedBuffer;
if (descriptor & PXIBuffer)
return PXIBuffer;
return StaticBuffer;
}
} // namespace IPC
//////////////////////////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////////////////////////
// Namespace Service // Namespace Service
@ -21,8 +176,22 @@ namespace Service {
static const int kMaxPortSize = 8; ///< Maximum size of a port name (8 characters) 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 static const u32 DefaultMaxSessions = 10; ///< Arbitrary default number of maximum connections to an HLE port
/// TODO(Subv): Write documentation for this class
class SessionRequestHandler {
public:
/**
* Dispatches and handles a sync request from the emulated application.
* @param server_session The ServerSession that was triggered for this sync request,
* it should be used to differentiate which client (As in ClientSession) we're answering to.
* TODO(Subv): Make a HandleSyncRequestParent function that is called from the outside and does { ReturnIfError(Translate()); HandleSyncRequest(); }
* The Translate() function would copy the command buffer from the ServerSession thread's TLS into a temporary buffer, and pass it to HandleSyncRequest.
* TODO(Subv): HandleSyncRequest's return type should be void.
*/
virtual ResultCode HandleSyncRequest(Kernel::SharedPtr<Kernel::ServerSession> server_session) = 0;
};
/// Interface to a CTROS service /// Interface to a CTROS service
class Interface { class Interface : public SessionRequestHandler {
public: public:
std::string GetName() const { std::string GetName() const {
return GetPortName(); return GetPortName();
@ -56,7 +225,7 @@ public:
return "[UNKNOWN SERVICE PORT]"; return "[UNKNOWN SERVICE PORT]";
} }
ResultCode HandleSyncRequest(Kernel::SharedPtr<Kernel::ServerSession> server_session); ResultCode HandleSyncRequest(Kernel::SharedPtr<Kernel::ServerSession> server_session) override;
protected: protected:
/** /**
@ -88,9 +257,9 @@ void Init();
void Shutdown(); void Shutdown();
/// Map of named ports managed by the kernel, which can be retrieved using the ConnectToPort SVC. /// 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; extern std::unordered_map<std::string, std::tuple<Kernel::SharedPtr<Kernel::ClientPort>, std::shared_ptr<Interface>>> g_kernel_named_ports;
/// Map of services registered with the "srv:" service, retrieved using GetServiceHandle. /// Map of services registered with the "srv:" service, retrieved using GetServiceHandle.
extern std::unordered_map<std::string, Kernel::SharedPtr<Kernel::ClientPort>> g_srv_services; extern std::unordered_map<std::string, std::tuple<Kernel::SharedPtr<Kernel::ClientPort>, std::shared_ptr<Interface>>> g_srv_services;
/// Adds a service to the services table /// Adds a service to the services table
void AddService(Interface* interface_); void AddService(Interface* interface_);

10
src/core/hle/service/srv.cpp
View file

@ -10,6 +10,7 @@
#include "core/hle/kernel/client_session.h" #include "core/hle/kernel/client_session.h"
#include "core/hle/kernel/event.h" #include "core/hle/kernel/event.h"
#include "core/hle/service/srv.h" #include "core/hle/service/srv.h"
#include "core/hle/kernel/server_session.h"
//////////////////////////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////////////////////////
// Namespace SRV // Namespace SRV
@ -85,13 +86,18 @@ static void GetServiceHandle(Service::Interface* self) {
auto it = Service::g_srv_services.find(port_name); auto it = Service::g_srv_services.find(port_name);
if (it != Service::g_srv_services.end()) { if (it != Service::g_srv_services.end()) {
auto client_port = it->second; auto client_port = std::get<Kernel::SharedPtr<Kernel::ClientPort>>(it->second);
// The hle_handler will be nullptr if this port was registered by the emulated
// application by means of srv:RegisterService.
auto hle_handler = std::get<std::shared_ptr<Service::Interface>>(it->second);
// Create a new session pair // Create a new session pair
auto sessions = Kernel::ServerSession::CreateSessionPair(client_port, port_name); auto sessions = Kernel::ServerSession::CreateSessionPair(port_name, hle_handler);
auto client_session = std::get<Kernel::SharedPtr<Kernel::ClientSession>>(sessions); auto client_session = std::get<Kernel::SharedPtr<Kernel::ClientSession>>(sessions);
auto server_session = std::get<Kernel::SharedPtr<Kernel::ServerSession>>(sessions); auto server_session = std::get<Kernel::SharedPtr<Kernel::ServerSession>>(sessions);
// TODO(Subv): Wait the current thread until the ServerPort calls AcceptSession.
// Add the server session to the port's queue // Add the server session to the port's queue
client_port->AddWaitingSession(server_session); client_port->AddWaitingSession(server_session);

11
src/core/hle/svc.cpp
View file

@ -21,6 +21,7 @@
#include "core/hle/kernel/resource_limit.h" #include "core/hle/kernel/resource_limit.h"
#include "core/hle/kernel/semaphore.h" #include "core/hle/kernel/semaphore.h"
#include "core/hle/kernel/server_port.h" #include "core/hle/kernel/server_port.h"
#include "core/hle/kernel/server_session.h"
#include "core/hle/kernel/shared_memory.h" #include "core/hle/kernel/shared_memory.h"
#include "core/hle/kernel/thread.h" #include "core/hle/kernel/thread.h"
#include "core/hle/kernel/timer.h" #include "core/hle/kernel/timer.h"
@ -223,13 +224,18 @@ static ResultCode ConnectToPort(Handle* out_handle, const char* port_name) {
return ERR_NOT_FOUND; return ERR_NOT_FOUND;
} }
auto client_port = it->second; auto client_port = std::get<Kernel::SharedPtr<Kernel::ClientPort>>(it->second);
// The hle_handler will be nullptr if this port was registered by the emulated
// application by means of svcCreatePort with a defined name.
auto hle_handler = std::get<std::shared_ptr<Service::Interface>>(it->second);
// Create a new session pair // Create a new session pair
auto sessions = Kernel::ServerSession::CreateSessionPair(client_port, port_name); auto sessions = Kernel::ServerSession::CreateSessionPair(port_name, hle_handler);
auto client_session = std::get<Kernel::SharedPtr<Kernel::ClientSession>>(sessions); auto client_session = std::get<Kernel::SharedPtr<Kernel::ClientSession>>(sessions);
auto server_session = std::get<Kernel::SharedPtr<Kernel::ServerSession>>(sessions); auto server_session = std::get<Kernel::SharedPtr<Kernel::ServerSession>>(sessions);
// TODO(Subv): Wait the current thread until the ServerPort calls AcceptSession.
// Add the server session to the port's queue // Add the server session to the port's queue
client_port->AddWaitingSession(server_session); client_port->AddWaitingSession(server_session);
@ -247,6 +253,7 @@ static ResultCode SendSyncRequest(Handle handle) {
LOG_TRACE(Kernel_SVC, "called handle=0x%08X(%s)", handle, session->GetName().c_str()); LOG_TRACE(Kernel_SVC, "called handle=0x%08X(%s)", handle, session->GetName().c_str());
// TODO(Subv): Wait the current thread and reschedule if this request is not going to be handled by HLE code.
return session->HandleSyncRequest(); return session->HandleSyncRequest();
} }