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Merge pull request #2249 from Subv/sessions_v3

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Kernel/IPC: Use Ports and Sessions as the fundamental building block of Inter Process Communication.
This commit is contained in:
Yuri Kunde Schlesner
2016-12-14 20:35:33 -08:00
committed by GitHub
parent c96acc1941 016307ae65
commit 905fc92ce1
25 changed files with 591 additions and 171 deletions
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40
src/core/hle/service/fs/archive.cpp
View File

@@ -24,6 +24,7 @@
#include "core/file_sys/directory_backend.h"
#include "core/file_sys/file_backend.h"
#include "core/hle/hle.h"
#include "core/hle/kernel/client_session.h"
#include "core/hle/result.h"
#include "core/hle/service/fs/archive.h"
#include "core/hle/service/fs/fs_user.h"
@@ -93,7 +94,7 @@ File::File(std::unique_ptr<FileSys::FileBackend>&& backend, const FileSys::Path&
File::~File() {}
ResultVal<bool> File::SyncRequest() {
void File::HandleSyncRequest(Kernel::SharedPtr<Kernel::ServerSession> server_session) {
u32* cmd_buff = Kernel::GetCommandBuffer();
FileCommand cmd = static_cast<FileCommand>(cmd_buff[0]);
switch (cmd) {
@@ -116,7 +117,7 @@ ResultVal<bool> File::SyncRequest() {
ResultVal<size_t> read = backend->Read(offset, data.size(), data.data());
if (read.Failed()) {
cmd_buff[1] = read.Code().raw;
return read.Code();
return;
}
Memory::WriteBlock(address, data.data(), *read);
cmd_buff[2] = static_cast<u32>(*read);
@@ -137,7 +138,7 @@ ResultVal<bool> File::SyncRequest() {
ResultVal<size_t> written = backend->Write(offset, data.size(), flush != 0, data.data());
if (written.Failed()) {
cmd_buff[1] = written.Code().raw;
return written.Code();
return;
}
cmd_buff[2] = static_cast<u32>(*written);
break;
@@ -173,7 +174,11 @@ ResultVal<bool> File::SyncRequest() {
case FileCommand::OpenLinkFile: {
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());
ClientConnected(std::get<Kernel::SharedPtr<Kernel::ServerSession>>(sessions));
cmd_buff[3] = Kernel::g_handle_table
.Create(std::get<Kernel::SharedPtr<Kernel::ClientSession>>(sessions))
.ValueOr(INVALID_HANDLE);
break;
}
@@ -194,10 +199,9 @@ ResultVal<bool> File::SyncRequest() {
LOG_ERROR(Service_FS, "Unknown command=0x%08X!", cmd);
ResultCode error = UnimplementedFunction(ErrorModule::FS);
cmd_buff[1] = error.raw; // TODO(Link Mauve): use the correct error code for that.
return error;
return;
}
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
return MakeResult<bool>(false);
}
Directory::Directory(std::unique_ptr<FileSys::DirectoryBackend>&& backend,
@@ -206,11 +210,10 @@ Directory::Directory(std::unique_ptr<FileSys::DirectoryBackend>&& backend,
Directory::~Directory() {}
ResultVal<bool> Directory::SyncRequest() {
void Directory::HandleSyncRequest(Kernel::SharedPtr<Kernel::ServerSession> server_session) {
u32* cmd_buff = Kernel::GetCommandBuffer();
DirectoryCommand cmd = static_cast<DirectoryCommand>(cmd_buff[0]);
switch (cmd) {
// Read from directory...
case DirectoryCommand::Read: {
u32 count = cmd_buff[1];
@@ -237,10 +240,9 @@ ResultVal<bool> Directory::SyncRequest() {
LOG_ERROR(Service_FS, "Unknown command=0x%08X!", cmd);
ResultCode error = UnimplementedFunction(ErrorModule::FS);
cmd_buff[1] = error.raw; // TODO(Link Mauve): use the correct error code for that.
return MakeResult<bool>(false);
return;
}
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
return MakeResult<bool>(false);
}
////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -307,9 +309,9 @@ ResultCode RegisterArchiveType(std::unique_ptr<FileSys::ArchiveFactory>&& factor
return RESULT_SUCCESS;
}
ResultVal<Kernel::SharedPtr<File>> OpenFileFromArchive(ArchiveHandle archive_handle,
const FileSys::Path& path,
const FileSys::Mode mode) {
ResultVal<std::shared_ptr<File>> OpenFileFromArchive(ArchiveHandle archive_handle,
const FileSys::Path& path,
const FileSys::Mode mode) {
ArchiveBackend* archive = GetArchive(archive_handle);
if (archive == nullptr)
return ERR_INVALID_ARCHIVE_HANDLE;
@@ -318,8 +320,8 @@ ResultVal<Kernel::SharedPtr<File>> OpenFileFromArchive(ArchiveHandle archive_han
if (backend.Failed())
return backend.Code();
auto file = Kernel::SharedPtr<File>(new File(backend.MoveFrom(), path));
return MakeResult<Kernel::SharedPtr<File>>(std::move(file));
auto file = std::shared_ptr<File>(new File(backend.MoveFrom(), path));
return MakeResult<std::shared_ptr<File>>(std::move(file));
}
ResultCode DeleteFileFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path) {
@@ -398,8 +400,8 @@ ResultCode RenameDirectoryBetweenArchives(ArchiveHandle src_archive_handle,
}
}
ResultVal<Kernel::SharedPtr<Directory>> OpenDirectoryFromArchive(ArchiveHandle archive_handle,
const FileSys::Path& path) {
ResultVal<std::shared_ptr<Directory>> OpenDirectoryFromArchive(ArchiveHandle archive_handle,
const FileSys::Path& path) {
ArchiveBackend* archive = GetArchive(archive_handle);
if (archive == nullptr)
return ERR_INVALID_ARCHIVE_HANDLE;
@@ -408,8 +410,8 @@ ResultVal<Kernel::SharedPtr<Directory>> OpenDirectoryFromArchive(ArchiveHandle a
if (backend.Failed())
return backend.Code();
auto directory = Kernel::SharedPtr<Directory>(new Directory(backend.MoveFrom(), path));
return MakeResult<Kernel::SharedPtr<Directory>>(std::move(directory));
auto directory = std::shared_ptr<Directory>(new Directory(backend.MoveFrom(), path));
return MakeResult<std::shared_ptr<Directory>>(std::move(directory));
}
ResultVal<u64> GetFreeBytesInArchive(ArchiveHandle archive_handle) {

32
src/core/hle/service/fs/archive.h
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@@ -8,7 +8,7 @@
#include <string>
#include "common/common_types.h"
#include "core/file_sys/archive_backend.h"
#include "core/hle/kernel/session.h"
#include "core/hle/kernel/server_session.h"
#include "core/hle/result.h"
namespace FileSys {
@@ -43,33 +43,37 @@ enum class MediaType : u32 { NAND = 0, SDMC = 1, GameCard = 2 };
typedef u64 ArchiveHandle;
class File : public Kernel::Session {
class File final : public SessionRequestHandler, public std::enable_shared_from_this<File> {
public:
File(std::unique_ptr<FileSys::FileBackend>&& backend, const FileSys::Path& path);
~File();
std::string GetName() const override {
std::string GetName() const {
return "Path: " + path.DebugStr();
}
ResultVal<bool> SyncRequest() override;
FileSys::Path path; ///< Path of the file
u32 priority; ///< Priority of the file. TODO(Subv): Find out what this means
std::unique_ptr<FileSys::FileBackend> backend; ///< File backend interface
protected:
void HandleSyncRequest(Kernel::SharedPtr<Kernel::ServerSession> server_session) override;
};
class Directory : public Kernel::Session {
class Directory final : public SessionRequestHandler {
public:
Directory(std::unique_ptr<FileSys::DirectoryBackend>&& backend, const FileSys::Path& path);
~Directory();
std::string GetName() const override {
std::string GetName() const {
return "Directory: " + path.DebugStr();
}
ResultVal<bool> SyncRequest() override;
FileSys::Path path; ///< Path of the directory
std::unique_ptr<FileSys::DirectoryBackend> backend; ///< File backend interface
protected:
void HandleSyncRequest(Kernel::SharedPtr<Kernel::ServerSession> server_session) override;
};
/**
@@ -99,11 +103,11 @@ ResultCode RegisterArchiveType(std::unique_ptr<FileSys::ArchiveFactory>&& factor
* @param archive_handle Handle to an open Archive object
* @param path Path to the File inside of the Archive
* @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,
const FileSys::Path& path,
const FileSys::Mode mode);
ResultVal<std::shared_ptr<File>> OpenFileFromArchive(ArchiveHandle archive_handle,
const FileSys::Path& path,
const FileSys::Mode mode);
/**
* Delete a File from an Archive
@@ -178,10 +182,10 @@ ResultCode RenameDirectoryBetweenArchives(ArchiveHandle src_archive_handle,
* Open a Directory from an Archive
* @param archive_handle Handle to an open Archive object
* @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,
const FileSys::Path& path);
ResultVal<std::shared_ptr<Directory>> OpenDirectoryFromArchive(ArchiveHandle archive_handle,
const FileSys::Path& path);
/**
* Get the free space in an Archive

33
src/core/hle/service/fs/fs_user.cpp
View File

@@ -8,6 +8,7 @@
#include "common/logging/log.h"
#include "common/scope_exit.h"
#include "common/string_util.h"
#include "core/hle/kernel/client_session.h"
#include "core/hle/result.h"
#include "core/hle/service/fs/archive.h"
#include "core/hle/service/fs/fs_user.h"
@@ -17,7 +18,7 @@
// Namespace FS_User
using Kernel::SharedPtr;
using Kernel::Session;
using Kernel::ServerSession;
namespace Service {
namespace FS {
@@ -67,10 +68,16 @@ static void OpenFile(Service::Interface* self) {
LOG_DEBUG(Service_FS, "path=%s, mode=%u attrs=%u", file_path.DebugStr().c_str(), mode.hex,
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;
if (file_res.Succeeded()) {
cmd_buff[3] = Kernel::g_handle_table.Create(*file_res).MoveFrom();
std::shared_ptr<File> file = *file_res;
auto sessions = ServerSession::CreateSessionPair(file->GetName(), file);
file->ClientConnected(std::get<Kernel::SharedPtr<Kernel::ServerSession>>(sessions));
cmd_buff[3] = Kernel::g_handle_table
.Create(std::get<Kernel::SharedPtr<Kernel::ClientSession>>(sessions))
.MoveFrom();
} else {
cmd_buff[3] = 0;
LOG_ERROR(Service_FS, "failed to get a handle for file %s", file_path.DebugStr().c_str());
@@ -127,10 +134,16 @@ static void OpenFileDirectly(Service::Interface* self) {
}
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;
if (file_res.Succeeded()) {
cmd_buff[3] = Kernel::g_handle_table.Create(*file_res).MoveFrom();
std::shared_ptr<File> file = *file_res;
auto sessions = ServerSession::CreateSessionPair(file->GetName(), file);
file->ClientConnected(std::get<Kernel::SharedPtr<Kernel::ServerSession>>(sessions));
cmd_buff[3] = Kernel::g_handle_table
.Create(std::get<Kernel::SharedPtr<Kernel::ClientSession>>(sessions))
.MoveFrom();
} else {
cmd_buff[3] = 0;
LOG_ERROR(Service_FS, "failed to get a handle for file %s mode=%u attributes=%u",
@@ -388,10 +401,16 @@ static void OpenDirectory(Service::Interface* self) {
LOG_DEBUG(Service_FS, "type=%u size=%u data=%s", static_cast<u32>(dirname_type), dirname_size,
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;
if (dir_res.Succeeded()) {
cmd_buff[3] = Kernel::g_handle_table.Create(*dir_res).MoveFrom();
std::shared_ptr<Directory> directory = *dir_res;
auto sessions = ServerSession::CreateSessionPair(directory->GetName(), directory);
directory->ClientConnected(std::get<Kernel::SharedPtr<Kernel::ServerSession>>(sessions));
cmd_buff[3] = Kernel::g_handle_table
.Create(std::get<Kernel::SharedPtr<Kernel::ClientSession>>(sessions))
.MoveFrom();
} else {
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());