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Core: Add a new File class, obtainable from an Archive, and a stub implementation.
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parent
6b7b36a874
commit
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@ -23,6 +23,7 @@ set(SRCS
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arm/interpreter/armvirt.cpp
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arm/interpreter/thumbemu.cpp
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file_sys/archive_romfs.cpp
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file_sys/file_romfs.cpp
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hle/kernel/address_arbiter.cpp
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hle/kernel/archive.cpp
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hle/kernel/event.cpp
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@ -77,6 +78,8 @@ set(HEADERS
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arm/arm_interface.h
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file_sys/archive.h
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file_sys/archive_romfs.h
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file_sys/file.h
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file_sys/file_romfs.h
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hle/kernel/address_arbiter.h
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hle/kernel/archive.h
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hle/kernel/event.h
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@ -4,7 +4,12 @@
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#pragma once
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#include <memory>
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#include "common/common_types.h"
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#include "common/bit_field.h"
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#include "core/file_sys/file.h"
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#include "core/hle/kernel/kernel.h"
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@ -13,6 +18,13 @@
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namespace FileSys {
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union Mode {
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u32 hex;
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BitField<0, 1, u32> read_flag;
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BitField<1, 1, u32> write_flag;
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BitField<2, 1, u32> create_flag;
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};
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class Archive : NonCopyable {
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public:
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/// Supported archive types
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@ -35,6 +47,14 @@ public:
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*/
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virtual IdCode GetIdCode() const = 0;
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/**
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* Open a file specified by its path, using the specified mode
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* @param path Path relative to the archive
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* @param mode Mode to open the file with
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* @return Opened file, or nullptr
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*/
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virtual std::unique_ptr<File> OpenFile(const std::string& path, const Mode mode) const = 0;
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/**
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* Read data from the archive
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* @param offset Offset in bytes to start reading data from
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@ -5,6 +5,7 @@
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#include "common/common_types.h"
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#include "core/file_sys/archive_romfs.h"
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#include "core/file_sys/file_romfs.h"
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// FileSys namespace
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@ -21,6 +22,16 @@ Archive_RomFS::Archive_RomFS(const Loader::AppLoader& app_loader) {
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Archive_RomFS::~Archive_RomFS() {
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}
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/**
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* Open a file specified by its path, using the specified mode
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* @param path Path relative to the archive
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* @param mode Mode to open the file with
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* @return Opened file, or nullptr
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*/
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std::unique_ptr<File> Archive_RomFS::OpenFile(const std::string& path, const Mode mode) const {
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return std::unique_ptr<File>(new File_RomFS);
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}
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/**
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* Read data from the archive
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* @param offset Offset in bytes to start reading data from
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@ -28,6 +28,14 @@ public:
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*/
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IdCode GetIdCode() const override { return IdCode::RomFS; };
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/**
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* Open a file specified by its path, using the specified mode
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* @param path Path relative to the archive
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* @param mode Mode to open the file with
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* @return Opened file, or nullptr
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*/
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std::unique_ptr<File> OpenFile(const std::string& path, const Mode mode) const override;
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/**
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* Read data from the archive
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* @param offset Offset in bytes to start reading data from
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53
src/core/file_sys/file.h
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53
src/core/file_sys/file.h
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@ -0,0 +1,53 @@
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// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2
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// Refer to the license.txt file included.
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#pragma once
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#include "common/common_types.h"
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#include "core/hle/kernel/kernel.h"
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// FileSys namespace
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namespace FileSys {
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class File : NonCopyable {
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public:
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File() { }
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virtual ~File() { }
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/**
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* Read data from the file
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* @param offset Offset in bytes to start reading data from
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* @param length Length in bytes of data to read from file
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* @param buffer Buffer to read data into
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* @return Number of bytes read
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*/
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virtual size_t Read(const u64 offset, const u32 length, u8* buffer) const = 0;
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/**
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* Write data to the file
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* @param offset Offset in bytes to start writing data to
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* @param length Length in bytes of data to write to file
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* @param buffer Buffer to write data from
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* @param flush The flush parameters (0 == do not flush)
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* @return Number of bytes written
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*/
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virtual size_t Write(const u64 offset, const u32 length, const u32 flush, const u8* buffer) const = 0;
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/**
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* Get the size of the file in bytes
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* @return Size of the file in bytes
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*/
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virtual size_t GetSize() const = 0;
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/**
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* Close the file
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* @return true if the file closed correctly
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*/
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virtual bool Close() const = 0;
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};
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} // namespace FileSys
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59
src/core/file_sys/file_romfs.cpp
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59
src/core/file_sys/file_romfs.cpp
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@ -0,0 +1,59 @@
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// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2
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// Refer to the license.txt file included.
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#include "common/common_types.h"
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#include "core/file_sys/file_romfs.h"
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// FileSys namespace
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namespace FileSys {
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File_RomFS::File_RomFS() {
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}
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File_RomFS::~File_RomFS() {
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}
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/**
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* Read data from the file
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* @param offset Offset in bytes to start reading data from
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* @param length Length in bytes of data to read from file
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* @param buffer Buffer to read data into
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* @return Number of bytes read
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*/
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size_t File_RomFS::Read(const u64 offset, const u32 length, u8* buffer) const {
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return -1;
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}
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/**
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* Write data to the file
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* @param offset Offset in bytes to start writing data to
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* @param length Length in bytes of data to write to file
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* @param buffer Buffer to write data from
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* @param flush The flush parameters (0 == do not flush)
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* @return Number of bytes written
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*/
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size_t File_RomFS::Write(const u64 offset, const u32 length, const u32 flush, const u8* buffer) const {
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return -1;
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}
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/**
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* Get the size of the file in bytes
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* @return Size of the file in bytes
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*/
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size_t File_RomFS::GetSize() const {
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return -1;
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}
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/**
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* Close the file
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* @return true if the file closed correctly
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*/
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bool File_RomFS::Close() const {
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return false;
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}
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} // namespace FileSys
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src/core/file_sys/file_romfs.h
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54
src/core/file_sys/file_romfs.h
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@ -0,0 +1,54 @@
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// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2
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// Refer to the license.txt file included.
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#pragma once
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#include "common/common_types.h"
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#include "core/file_sys/file.h"
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#include "core/loader/loader.h"
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// FileSys namespace
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namespace FileSys {
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class File_RomFS final : public File {
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public:
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File_RomFS();
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~File_RomFS() override;
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/**
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* Read data from the file
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* @param offset Offset in bytes to start reading data from
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* @param length Length in bytes of data to read from file
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* @param buffer Buffer to read data into
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* @return Number of bytes read
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*/
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size_t Read(const u64 offset, const u32 length, u8* buffer) const override;
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/**
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* Write data to the file
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* @param offset Offset in bytes to start writing data to
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* @param length Length in bytes of data to write to file
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* @param buffer Buffer to write data from
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* @param flush The flush parameters (0 == do not flush)
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* @return Number of bytes written
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*/
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size_t Write(const u64 offset, const u32 length, const u32 flush, const u8* buffer) const override;
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/**
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* Get the size of the file in bytes
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* @return Size of the file in bytes
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*/
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size_t GetSize() const override;
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/**
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* Close the file
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* @return true if the file closed correctly
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*/
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bool Close() const override;
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};
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} // namespace FileSys
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