From 2c62d9255160b7302942d536c9c990b86c7fb907 Mon Sep 17 00:00:00 2001 From: bunnei Date: Fri, 4 Jul 2014 13:11:09 -0400 Subject: Loader: Updated read methods to be const - Required "file" handle to be made local and explicitly opened/closed as needed --- src/core/file_sys/archive_romfs.cpp | 2 +- src/core/file_sys/archive_romfs.h | 2 +- src/core/loader/loader.h | 10 +-- src/core/loader/ncch.cpp | 118 ++++++++++++++++++++---------------- src/core/loader/ncch.h | 15 +++-- 5 files changed, 79 insertions(+), 68 deletions(-) (limited to 'src/core') diff --git a/src/core/file_sys/archive_romfs.cpp b/src/core/file_sys/archive_romfs.cpp index 6fdb768d6..fd84b9c8c 100644 --- a/src/core/file_sys/archive_romfs.cpp +++ b/src/core/file_sys/archive_romfs.cpp @@ -11,7 +11,7 @@ namespace FileSys { -Archive_RomFS::Archive_RomFS(Loader::AppLoader& app_loader) { +Archive_RomFS::Archive_RomFS(const Loader::AppLoader& app_loader) { // Load the RomFS from the app if (Loader::ResultStatus::Success != app_loader.ReadRomFS(raw_data)) { WARN_LOG(FILESYS, "Unable to read RomFS!"); diff --git a/src/core/file_sys/archive_romfs.h b/src/core/file_sys/archive_romfs.h index 60af8ff0d..5ef4fed50 100644 --- a/src/core/file_sys/archive_romfs.h +++ b/src/core/file_sys/archive_romfs.h @@ -19,7 +19,7 @@ namespace FileSys { /// File system interface to the RomFS archive class Archive_RomFS : public Archive { public: - Archive_RomFS(Loader::AppLoader& app_loader); + Archive_RomFS(const Loader::AppLoader& app_loader); ~Archive_RomFS(); /** diff --git a/src/core/loader/loader.h b/src/core/loader/loader.h index 7891c1ed7..c27b5b4b6 100644 --- a/src/core/loader/loader.h +++ b/src/core/loader/loader.h @@ -51,7 +51,7 @@ public: * @param buffer Reference to buffer to store data * @return ResultStatus result of function */ - virtual ResultStatus ReadCode(std::vector& buffer) { + virtual ResultStatus ReadCode(std::vector& buffer) const { return ResultStatus::ErrorNotImplemented; } @@ -60,7 +60,7 @@ public: * @param buffer Reference to buffer to store data * @return ResultStatus result of function */ - virtual ResultStatus ReadIcon(std::vector& buffer) { + virtual ResultStatus ReadIcon(std::vector& buffer) const { return ResultStatus::ErrorNotImplemented; } @@ -69,7 +69,7 @@ public: * @param buffer Reference to buffer to store data * @return ResultStatus result of function */ - virtual ResultStatus ReadBanner(std::vector& buffer) { + virtual ResultStatus ReadBanner(std::vector& buffer) const { return ResultStatus::ErrorNotImplemented; } @@ -78,7 +78,7 @@ public: * @param buffer Reference to buffer to store data * @return ResultStatus result of function */ - virtual ResultStatus ReadLogo(std::vector& buffer) { + virtual ResultStatus ReadLogo(std::vector& buffer) const { return ResultStatus::ErrorNotImplemented; } @@ -87,7 +87,7 @@ public: * @param buffer Reference to buffer to store data * @return ResultStatus result of function */ - virtual ResultStatus ReadRomFS(std::vector& buffer) { + virtual ResultStatus ReadRomFS(std::vector& buffer) const { return ResultStatus::ErrorNotImplemented; } }; diff --git a/src/core/loader/ncch.cpp b/src/core/loader/ncch.cpp index 0e3f768ce..a82338904 100644 --- a/src/core/loader/ncch.cpp +++ b/src/core/loader/ncch.cpp @@ -113,15 +113,13 @@ AppLoader_NCCH::AppLoader_NCCH(const std::string& filename) { /// AppLoader_NCCH destructor AppLoader_NCCH::~AppLoader_NCCH() { - if (file.IsOpen()) - file.Close(); } /** * Loads .code section into memory for booting * @return ResultStatus result of function */ -ResultStatus AppLoader_NCCH::LoadExec() { +ResultStatus AppLoader_NCCH::LoadExec() const { if (!is_loaded) return ResultStatus::ErrorNotLoaded; @@ -140,41 +138,48 @@ ResultStatus AppLoader_NCCH::LoadExec() { * @param buffer Vector to read data into * @return ResultStatus result of function */ -ResultStatus AppLoader_NCCH::LoadSectionExeFS(const char* name, std::vector& buffer) { +ResultStatus AppLoader_NCCH::LoadSectionExeFS(const char* name, std::vector& buffer) const { // Iterate through the ExeFs archive until we find the .code file... - for (int i = 0; i < kMaxSections; i++) { - // Load the specified section... - if (strcmp((const char*)exefs_header.section[i].name, name) == 0) { - INFO_LOG(LOADER, "ExeFS section %d:", i); - INFO_LOG(LOADER, " name: %s", exefs_header.section[i].name); - INFO_LOG(LOADER, " offset: 0x%08X", exefs_header.section[i].offset); - INFO_LOG(LOADER, " size: 0x%08X", exefs_header.section[i].size); - - s64 section_offset = (exefs_header.section[i].offset + exefs_offset + - sizeof(ExeFs_Header) + ncch_offset); - file.Seek(section_offset, 0); - - // Section is compressed... - if (i == 0 && is_compressed) { - // Read compressed .code section... - std::unique_ptr temp_buffer(new u8[exefs_header.section[i].size]); - file.ReadBytes(&temp_buffer[0], exefs_header.section[i].size); - - // Decompress .code section... - u32 decompressed_size = LZSS_GetDecompressedSize(&temp_buffer[0], - exefs_header.section[i].size); - buffer.resize(decompressed_size); - if (!LZSS_Decompress(&temp_buffer[0], exefs_header.section[i].size, &buffer[0], - decompressed_size)) { - return ResultStatus::ErrorInvalidFormat; + File::IOFile file(filename, "rb"); + if (file.IsOpen()) { + for (int i = 0; i < kMaxSections; i++) { + // Load the specified section... + if (strcmp((const char*)exefs_header.section[i].name, name) == 0) { + INFO_LOG(LOADER, "ExeFS section %d:", i); + INFO_LOG(LOADER, " name: %s", exefs_header.section[i].name); + INFO_LOG(LOADER, " offset: 0x%08X", exefs_header.section[i].offset); + INFO_LOG(LOADER, " size: 0x%08X", exefs_header.section[i].size); + + s64 section_offset = (exefs_header.section[i].offset + exefs_offset + + sizeof(ExeFs_Header)+ncch_offset); + file.Seek(section_offset, 0); + + // Section is compressed... + if (i == 0 && is_compressed) { + // Read compressed .code section... + std::unique_ptr temp_buffer(new u8[exefs_header.section[i].size]); + file.ReadBytes(&temp_buffer[0], exefs_header.section[i].size); + + // Decompress .code section... + u32 decompressed_size = LZSS_GetDecompressedSize(&temp_buffer[0], + exefs_header.section[i].size); + buffer.resize(decompressed_size); + if (!LZSS_Decompress(&temp_buffer[0], exefs_header.section[i].size, &buffer[0], + decompressed_size)) { + return ResultStatus::ErrorInvalidFormat; + } + // Section is uncompressed... } - // Section is uncompressed... - } else { - buffer.resize(exefs_header.section[i].size); - file.ReadBytes(&buffer[0], exefs_header.section[i].size); + else { + buffer.resize(exefs_header.section[i].size); + file.ReadBytes(&buffer[0], exefs_header.section[i].size); + } + return ResultStatus::Success; } - return ResultStatus::Success; } + } else { + ERROR_LOG(LOADER, "Unable to read file %s!", filename.c_str()); + return ResultStatus::Error; } return ResultStatus::ErrorNotUsed; } @@ -191,8 +196,7 @@ ResultStatus AppLoader_NCCH::Load() { if (is_loaded) return ResultStatus::ErrorAlreadyLoaded; - file = File::IOFile(filename, "rb"); - + File::IOFile file(filename, "rb"); if (file.IsOpen()) { file.ReadBytes(&ncch_header, sizeof(NCCH_Header)); @@ -235,6 +239,8 @@ ResultStatus AppLoader_NCCH::Load() { LoadExec(); // Load the executable into memory for booting return ResultStatus::Success; + } else { + ERROR_LOG(LOADER, "Unable to read file %s!", filename.c_str()); } return ResultStatus::Error; } @@ -244,7 +250,7 @@ ResultStatus AppLoader_NCCH::Load() { * @param buffer Reference to buffer to store data * @return ResultStatus result of function */ -ResultStatus AppLoader_NCCH::ReadCode(std::vector& buffer) { +ResultStatus AppLoader_NCCH::ReadCode(std::vector& buffer) const { return LoadSectionExeFS(".code", buffer); } @@ -253,7 +259,7 @@ ResultStatus AppLoader_NCCH::ReadCode(std::vector& buffer) { * @param buffer Reference to buffer to store data * @return ResultStatus result of function */ -ResultStatus AppLoader_NCCH::ReadIcon(std::vector& buffer) { +ResultStatus AppLoader_NCCH::ReadIcon(std::vector& buffer) const { return LoadSectionExeFS("icon", buffer); } @@ -262,7 +268,7 @@ ResultStatus AppLoader_NCCH::ReadIcon(std::vector& buffer) { * @param buffer Reference to buffer to store data * @return ResultStatus result of function */ -ResultStatus AppLoader_NCCH::ReadBanner(std::vector& buffer) { +ResultStatus AppLoader_NCCH::ReadBanner(std::vector& buffer) const { return LoadSectionExeFS("banner", buffer); } @@ -271,7 +277,7 @@ ResultStatus AppLoader_NCCH::ReadBanner(std::vector& buffer) { * @param buffer Reference to buffer to store data * @return ResultStatus result of function */ -ResultStatus AppLoader_NCCH::ReadLogo(std::vector& buffer) { +ResultStatus AppLoader_NCCH::ReadLogo(std::vector& buffer) const { return LoadSectionExeFS("logo", buffer); } @@ -280,24 +286,30 @@ ResultStatus AppLoader_NCCH::ReadLogo(std::vector& buffer) { * @param buffer Reference to buffer to store data * @return ResultStatus result of function */ -ResultStatus AppLoader_NCCH::ReadRomFS(std::vector& buffer) { - // Check if the NCCH has a RomFS... - if (ncch_header.romfs_offset != 0 && ncch_header.romfs_size != 0) { - u32 romfs_offset = ncch_offset + (ncch_header.romfs_offset * kBlockSize) + 0x1000; - u32 romfs_size = (ncch_header.romfs_size * kBlockSize) - 0x1000; +ResultStatus AppLoader_NCCH::ReadRomFS(std::vector& buffer) const { + File::IOFile file(filename, "rb"); + if (file.IsOpen()) { + // Check if the NCCH has a RomFS... + if (ncch_header.romfs_offset != 0 && ncch_header.romfs_size != 0) { + u32 romfs_offset = ncch_offset + (ncch_header.romfs_offset * kBlockSize) + 0x1000; + u32 romfs_size = (ncch_header.romfs_size * kBlockSize) - 0x1000; - INFO_LOG(LOADER, "RomFS offset: 0x%08X", romfs_offset); - INFO_LOG(LOADER, "RomFS size: 0x%08X", romfs_size); + INFO_LOG(LOADER, "RomFS offset: 0x%08X", romfs_offset); + INFO_LOG(LOADER, "RomFS size: 0x%08X", romfs_size); - buffer.resize(romfs_size); + buffer.resize(romfs_size); - file.Seek(romfs_offset, 0); - file.ReadBytes(&buffer[0], romfs_size); + file.Seek(romfs_offset, 0); + file.ReadBytes(&buffer[0], romfs_size); - return ResultStatus::Success; + return ResultStatus::Success; + } + NOTICE_LOG(LOADER, "RomFS unused"); + return ResultStatus::ErrorNotUsed; + } else { + ERROR_LOG(LOADER, "Unable to read file %s!", filename.c_str()); } - NOTICE_LOG(LOADER, "RomFS unused"); - return ResultStatus::ErrorNotUsed; + return ResultStatus::Error; } } // namespace Loader diff --git a/src/core/loader/ncch.h b/src/core/loader/ncch.h index 99753b244..c9a35228e 100644 --- a/src/core/loader/ncch.h +++ b/src/core/loader/ncch.h @@ -161,35 +161,35 @@ public: * @param buffer Reference to buffer to store data * @return ResultStatus result of function */ - ResultStatus ReadCode(std::vector& buffer); + ResultStatus ReadCode(std::vector& buffer) const; /** * Get the icon (typically icon section) of the application * @param buffer Reference to buffer to store data * @return ResultStatus result of function */ - ResultStatus ReadIcon(std::vector& buffer); + ResultStatus ReadIcon(std::vector& buffer) const; /** * Get the banner (typically banner section) of the application * @param buffer Reference to buffer to store data * @return ResultStatus result of function */ - ResultStatus ReadBanner(std::vector& buffer); + ResultStatus ReadBanner(std::vector& buffer) const; /** * Get the logo (typically logo section) of the application * @param buffer Reference to buffer to store data * @return ResultStatus result of function */ - ResultStatus ReadLogo(std::vector& buffer); + ResultStatus ReadLogo(std::vector& buffer) const; /** * Get the RomFS of the application * @param buffer Reference to buffer to store data * @return ResultStatus result of function */ - ResultStatus ReadRomFS(std::vector& buffer); + ResultStatus ReadRomFS(std::vector& buffer) const; private: @@ -199,15 +199,14 @@ private: * @param buffer Vector to read data into * @return ResultStatus result of function */ - ResultStatus LoadSectionExeFS(const char* name, std::vector& buffer); + ResultStatus LoadSectionExeFS(const char* name, std::vector& buffer) const; /** * Loads .code section into memory for booting * @return ResultStatus result of function */ - ResultStatus LoadExec(); + ResultStatus LoadExec() const; - File::IOFile file; std::string filename; bool is_loaded; -- cgit v1.2.3