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FS: Allow multiple instances of the same archive type to be open at once

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This commit is contained in:
Yuri Kunde Schlesner 2015-02-06 11:53:14 -02:00
parent 4468625080
commit 3f1a3952d7
19 changed files with 199 additions and 159 deletions
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51
src/core/hle/service/fs/archive.cpp
View file

@ -5,6 +5,8 @@
#include <memory>
#include <unordered_map>
#include <boost/container/flat_map.hpp>
#include "common/common_types.h"
#include "common/file_util.h"
#include "common/make_unique.h"
@ -233,22 +235,23 @@ public:
////////////////////////////////////////////////////////////////////////////////////////////////////
using FileSys::ArchiveBackend;
using FileSys::ArchiveFactory;
/**
* Map of registered archives, identified by id code. Once an archive is registered here, it is
* never removed until the FS service is shut down.
*/
static std::unordered_map<ArchiveIdCode, std::unique_ptr<ArchiveBackend>> id_code_map;
static boost::container::flat_map<ArchiveIdCode, std::unique_ptr<ArchiveFactory>> id_code_map;
/**
* Map of active archive handles. Values are pointers to the archives in `idcode_map`.
*/
static std::unordered_map<ArchiveHandle, ArchiveBackend*> handle_map;
static std::unordered_map<ArchiveHandle, std::unique_ptr<ArchiveBackend>> handle_map;
static ArchiveHandle next_handle;
static ArchiveBackend* GetArchive(ArchiveHandle handle) {
auto itr = handle_map.find(handle);
return (itr == handle_map.end()) ? nullptr : itr->second;
return (itr == handle_map.end()) ? nullptr : itr->second.get();
}
ResultVal<ArchiveHandle> OpenArchive(ArchiveIdCode id_code, FileSys::Path& archive_path) {
@ -261,15 +264,13 @@ ResultVal<ArchiveHandle> OpenArchive(ArchiveIdCode id_code, FileSys::Path& archi
ErrorSummary::NotFound, ErrorLevel::Permanent);
}
ResultCode res = itr->second->Open(archive_path);
if (!res.IsSuccess())
return res;
CASCADE_RESULT(std::unique_ptr<ArchiveBackend> res, itr->second->Open(archive_path));
// This should never even happen in the first place with 64-bit handles,
while (handle_map.count(next_handle) != 0) {
++next_handle;
}
handle_map.emplace(next_handle, itr->second.get());
handle_map.emplace(next_handle, std::move(res));
return MakeResult<ArchiveHandle>(next_handle++);
}
@ -282,11 +283,11 @@ ResultCode CloseArchive(ArchiveHandle handle) {
// TODO(yuriks): This might be what the fs:REG service is for. See the Register/Unregister calls in
// http://3dbrew.org/wiki/Filesystem_services#ProgramRegistry_service_.22fs:REG.22
ResultCode CreateArchive(std::unique_ptr<FileSys::ArchiveBackend>&& backend, ArchiveIdCode id_code) {
auto result = id_code_map.emplace(id_code, std::move(backend));
ResultCode RegisterArchiveType(std::unique_ptr<FileSys::ArchiveFactory>&& factory, ArchiveIdCode id_code) {
auto result = id_code_map.emplace(id_code, std::move(factory));
bool inserted = result.second;
_dbg_assert_msg_(Service_FS, inserted, "Tried to register more than one archive with same id code");
_assert_msg_(Service_FS, inserted, "Tried to register more than one archive with same id code");
auto& archive = result.first->second;
LOG_DEBUG(Service_FS, "Registered archive %s with id code 0x%08X", archive->GetName().c_str(), id_code);
@ -450,32 +451,32 @@ void ArchiveInit() {
std::string sdmc_directory = FileUtil::GetUserPath(D_SDMC_IDX);
std::string nand_directory = FileUtil::GetUserPath(D_NAND_IDX);
auto sdmc_archive = Common::make_unique<FileSys::Archive_SDMC>(sdmc_directory);
if (sdmc_archive->Initialize())
CreateArchive(std::move(sdmc_archive), ArchiveIdCode::SDMC);
auto sdmc_factory = Common::make_unique<FileSys::ArchiveFactory_SDMC>(sdmc_directory);
if (sdmc_factory->Initialize())
RegisterArchiveType(std::move(sdmc_factory), ArchiveIdCode::SDMC);
else
LOG_ERROR(Service_FS, "Can't instantiate SDMC archive with path %s", sdmc_directory.c_str());
// Create the SaveData archive
auto savedata_archive = Common::make_unique<FileSys::Archive_SaveData>(sdmc_directory);
CreateArchive(std::move(savedata_archive), ArchiveIdCode::SaveData);
auto savedata_factory = Common::make_unique<FileSys::ArchiveFactory_SaveData>(sdmc_directory);
RegisterArchiveType(std::move(savedata_factory), ArchiveIdCode::SaveData);
auto extsavedata_archive = Common::make_unique<FileSys::Archive_ExtSaveData>(sdmc_directory, false);
if (extsavedata_archive->Initialize())
CreateArchive(std::move(extsavedata_archive), ArchiveIdCode::ExtSaveData);
auto extsavedata_factory = Common::make_unique<FileSys::ArchiveFactory_ExtSaveData>(sdmc_directory, false);
if (extsavedata_factory->Initialize())
RegisterArchiveType(std::move(extsavedata_factory), ArchiveIdCode::ExtSaveData);
else
LOG_ERROR(Service_FS, "Can't instantiate ExtSaveData archive with path %s", extsavedata_archive->GetMountPoint().c_str());
LOG_ERROR(Service_FS, "Can't instantiate ExtSaveData archive with path %s", extsavedata_factory->GetMountPoint().c_str());
auto sharedextsavedata_archive = Common::make_unique<FileSys::Archive_ExtSaveData>(nand_directory, true);
if (sharedextsavedata_archive->Initialize())
CreateArchive(std::move(sharedextsavedata_archive), ArchiveIdCode::SharedExtSaveData);
auto sharedextsavedata_factory = Common::make_unique<FileSys::ArchiveFactory_ExtSaveData>(nand_directory, true);
if (sharedextsavedata_factory->Initialize())
RegisterArchiveType(std::move(sharedextsavedata_factory), ArchiveIdCode::SharedExtSaveData);
else
LOG_ERROR(Service_FS, "Can't instantiate SharedExtSaveData archive with path %s",
sharedextsavedata_archive->GetMountPoint().c_str());
sharedextsavedata_factory->GetMountPoint().c_str());
// Create the SaveDataCheck archive, basically a small variation of the RomFS archive
auto savedatacheck_archive = Common::make_unique<FileSys::Archive_SaveDataCheck>(nand_directory);
CreateArchive(std::move(savedatacheck_archive), ArchiveIdCode::SaveDataCheck);
auto savedatacheck_factory = Common::make_unique<FileSys::ArchiveFactory_SaveDataCheck>(nand_directory);
RegisterArchiveType(std::move(savedatacheck_factory), ArchiveIdCode::SaveDataCheck);
}
/// Shutdown archives

4
src/core/hle/service/fs/archive.h
View file

@ -51,11 +51,11 @@ ResultVal<ArchiveHandle> OpenArchive(ArchiveIdCode id_code, FileSys::Path& archi
ResultCode CloseArchive(ArchiveHandle handle);
/**
* Creates an Archive
* Registers an Archive type, instances of which can later be opened using its IdCode.
* @param backend File system backend interface to the archive
* @param id_code Id code used to access this type of archive
*/
ResultCode CreateArchive(std::unique_ptr<FileSys::ArchiveBackend>&& backend, ArchiveIdCode id_code);
ResultCode RegisterArchiveType(std::unique_ptr<FileSys::ArchiveFactory>&& factory, ArchiveIdCode id_code);
/**
* Open a File from an Archive