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https://git.eden-emu.dev/eden-emu/eden
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Add for windows and Android
This commit is contained in:
lizzie
crueter
parent
d29daabad5
commit
ae44a71fee
2 changed files with 355 additions and 324 deletions
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@ -18,6 +18,7 @@
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#ifdef _WIN32
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#include <io.h>
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#include <share.h>
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#include <windows.h>
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#else
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#include <unistd.h>
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#include <sys/mman.h>
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@ -40,13 +41,13 @@ namespace {
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#ifdef _WIN32
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/**
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* Converts the file access mode and file type enums to a file access mode wide string.
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*
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* @param mode File access mode
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* @param type File type
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*
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* @returns A pointer to a wide string representing the file access mode.
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*/
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* Converts the file access mode and file type enums to a file access mode wide string.
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*
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* @param mode File access mode
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* @param type File type
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*
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* @returns A pointer to a wide string representing the file access mode.
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*/
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[[nodiscard]] constexpr const wchar_t* AccessModeToWStr(FileAccessMode mode, FileType type) {
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switch (type) {
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case FileType::BinaryFile:
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@ -83,12 +84,12 @@ namespace {
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}
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/**
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* Converts the file-share access flag enum to a Windows defined file-share access flag.
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*
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* @param flag File-share access flag
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*
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* @returns Windows defined file-share access flag.
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*/
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* Converts the file-share access flag enum to a Windows defined file-share access flag.
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*
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* @param flag File-share access flag
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*
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* @returns Windows defined file-share access flag.
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*/
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[[nodiscard]] constexpr int ToWindowsFileShareFlag(FileShareFlag flag) {
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switch (flag) {
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case FileShareFlag::ShareNone:
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@ -106,13 +107,13 @@ namespace {
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#else
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/**
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* Converts the file access mode and file type enums to a file access mode string.
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*
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* @param mode File access mode
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* @param type File type
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*
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* @returns A pointer to a string representing the file access mode.
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*/
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* Converts the file access mode and file type enums to a file access mode string.
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*
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* @param mode File access mode
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* @param type File type
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*
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* @returns A pointer to a string representing the file access mode.
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*/
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[[nodiscard]] constexpr const char* AccessModeToStr(FileAccessMode mode, FileType type) {
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switch (type) {
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case FileType::BinaryFile:
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@ -151,12 +152,12 @@ namespace {
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#endif
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/**
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* Converts the seek origin enum to a seek origin integer.
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*
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* @param origin Seek origin
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*
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* @returns Seek origin integer.
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*/
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* Converts the seek origin enum to a seek origin integer.
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*
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* @param origin Seek origin
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*
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* @returns Seek origin integer.
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*/
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[[nodiscard]] constexpr int ToSeekOrigin(SeekOrigin origin) {
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switch (origin) {
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case SeekOrigin::SetOrigin:
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@ -182,7 +183,7 @@ std::string ReadStringFromFile(const std::filesystem::path& path, FileType type)
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}
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size_t WriteStringToFile(const std::filesystem::path& path, FileType type,
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std::string_view string) {
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std::string_view string) {
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if (Exists(path) && !IsFile(path)) {
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return 0;
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}
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@ -193,7 +194,7 @@ size_t WriteStringToFile(const std::filesystem::path& path, FileType type,
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}
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size_t AppendStringToFile(const std::filesystem::path& path, FileType type,
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std::string_view string) {
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std::string_view string) {
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if (Exists(path) && !IsFile(path)) {
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return 0;
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}
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@ -248,40 +249,13 @@ FileType IOFile::GetType() const {
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return file_type;
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}
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void IOFile::Open(const fs::path& path, FileAccessMode mode, FileType type, FileShareFlag flag) {
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Close();
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file_path = path;
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file_access_mode = mode;
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file_type = type;
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errno = 0;
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#ifdef _WIN32
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if (flag != FileShareFlag::ShareNone) {
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file = _wfsopen(path.c_str(), AccessModeToWStr(mode, type), ToWindowsFileShareFlag(flag));
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} else {
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_wfopen_s(&file, path.c_str(), AccessModeToWStr(mode, type));
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}
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#elif ANDROID
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if (Android::IsContentUri(path)) {
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ASSERT_MSG(mode == FileAccessMode::Read, "Content URI file access is for read-only!");
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auto const fd = Android::OpenContentUri(path, Android::OpenMode::Read);
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if (fd != -1) {
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file = fdopen(fd, "r");
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if (errno != 0 && file == nullptr)
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LOG_ERROR(Common_Filesystem, "Error opening file: {}, error: {}", path.c_str(), strerror(errno));
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} else {
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LOG_ERROR(Common_Filesystem, "Error opening file: {}", path.c_str());
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}
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} else {
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file = std::fopen(path.c_str(), AccessModeToStr(mode, type));
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}
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#elif defined(__HAIKU__) || defined(__managarm__) || defined(__OPENORBIS__) || defined(__APPLE__)
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file = std::fopen(path.c_str(), AccessModeToStr(mode, type));
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#elif defined(__unix__)
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if (type == FileType::BinaryFile && mode == FileAccessMode::Read) {
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#ifdef __unix__
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int PlatformMapReadOnly(IOFile& io, const char* path) {
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io.mmap_fd = open(path., O_RDONLY);
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if (io.mmap_fd > 0) {
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struct stat st;
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mmap_fd = open(path.c_str(), O_RDONLY);
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fstat(mmap_fd, &st);
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mmap_size = st.st_size;
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fstat(io.mmap_fd, &st);
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io.mmap_size = st.st_size;
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int map_flags = MAP_PRIVATE;
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#ifdef MAP_PREFAULT_READ
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@ -315,18 +289,97 @@ void IOFile::Open(const fs::path& path, FileAccessMode mode, FileType type, File
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u64 big_file_threshold = 512_MiB;
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map_flags |= u64(st.st_size) >= big_file_threshold ? MAP_ALIGNED_SUPER : 0;
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#endif
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mmap_base = (u8*)mmap(nullptr, mmap_size, PROT_READ, map_flags, mmap_fd, 0);
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if (mmap_base == MAP_FAILED) {
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close(mmap_fd);
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mmap_fd = -1;
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io.mmap_base = (u8*)mmap(nullptr, io.mmap_size, PROT_READ, map_flags, io.mmap_fd, 0);
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if (io.mmap_base == MAP_FAILED) {
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close(io.mmap_fd);
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io.mmap_fd = -1;
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} else {
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posix_madvise(mmap_base, mmap_size, POSIX_MADV_WILLNEED);
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posix_madvise(mmap_base, io.mmap_size, POSIX_MADV_WILLNEED);
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}
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}
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// mmap(2) failed or simply we can't use it
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if (mmap_fd == -1) {
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return io.mmap_fd;
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}
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void PlatformUnmap(IOFile& io) {
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if (io.mmap_fd != -1) {
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munmap(io.mmap_base, io.mmap_size);
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close(io.mmap_fd);
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io.mmap_fd = -1;
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}
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}
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#else
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int PlatformMapReadOnly(IOFile& io, const char* path) {
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io.file_handle = CreateFileA(path, GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN, nullptr);
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if (HANDLE(io.file_handle) != INVALID_HANDLE_VALUE) {
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io.mapping_handle = CreateFileMappingW(file_handle, nullptr, PAGE_READONLY, 0, 0, nullptr);
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if (io.mapping_handle) {
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io.mmap_base = (char const*)MapViewOfFile(HANDLE(io.mapping_handle), FILE_MAP_READ, 0, 0, 0);
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if (io.mmap_base) {
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_LARGE_INTEGER pvalue;
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GetFileSizeEx(file_handle, &pvalue);
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io.mmap_size = uint32_t(pvalue.QuadPart);
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} else {
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CloseHandle(io.mapping_handle);
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CloseHandle(io.file_handle);
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return -1;
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}
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} else {
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CloseHandle(io.file_handle);
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return -1;
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}
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}
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return 0;
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}
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void PlatformUnmap(IOFile& io) {
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if(io.mapping_handle) {
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if(io.mmap_base)
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UnmapViewOfFile(HANDLE(io.mmap_base));
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CloseHandle(HANDLE(io.mapping_handle));
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}
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if(io.file_handle != INVALID_HANDLE_VALUE)
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CloseHandle(HANDLE(io.file_handle));
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}
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#endif
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void IOFile::Open(const fs::path& path, FileAccessMode mode, FileType type, FileShareFlag flag) {
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Close();
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file_path = path;
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file_access_mode = mode;
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file_type = type;
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errno = 0;
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#ifdef _WIN32
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if (flag != FileShareFlag::ShareNone) {
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file = _wfsopen(path.c_str(), AccessModeToWStr(mode, type), ToWindowsFileShareFlag(flag));
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} else {
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_wfopen_s(&file, path.c_str(), AccessModeToWStr(mode, type));
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}
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#elif ANDROID
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if (Android::IsContentUri(path)) {
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ASSERT_MSG(mode == FileAccessMode::Read, "Content URI file access is for read-only!");
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if (PlatformMapReadOnly(*this, path.c_str()) == -1) {
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LOG_ERROR(Common_Filesystem, "Error mmap'ing file: {}", path.c_str());
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int const fd = Android::OpenContentUri(path, Android::OpenMode::Read);
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if (fd != -1) {
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file = fdopen(fd, "r");
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if (errno != 0 && file == nullptr)
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LOG_ERROR(Common_Filesystem, "Error opening file: {}, error: {}", path.c_str(), strerror(errno));
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} else {
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LOG_ERROR(Common_Filesystem, "Error opening file: {}", path.c_str());
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}
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}
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} else {
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file = std::fopen(path.c_str(), AccessModeToStr(mode, type));
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}
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#elif defined(__HAIKU__) || defined(__managarm__) || defined(__OPENORBIS__) || defined(__APPLE__)
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file = std::fopen(path.c_str(), AccessModeToStr(mode, type));
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#elif defined(__unix__)
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if (type == FileType::BinaryFile && mode == FileAccessMode::Read) {
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if (PlatformMapReadOnly(*this, path.c_str()) == -1) {
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LOG_ERROR(Common_Filesystem, "Error mmap'ing file: {}", path.c_str());
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}
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}
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if (mmap_fd == -1) {
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file = std::fopen(path.c_str(), AccessModeToStr(mode, type)); // mmap(2) failed or simply we can't use it
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}
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#else
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// Some other fancy OS (ahem fucking Darwin/Mac OSX)
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file = std::fopen(path.c_str(), AccessModeToStr(mode, type));
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@ -339,13 +392,7 @@ void IOFile::Open(const fs::path& path, FileAccessMode mode, FileType type, File
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}
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void IOFile::Close() {
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#ifdef __unix__
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if (mmap_fd != -1) {
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munmap(mmap_base, mmap_size);
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close(mmap_fd);
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mmap_fd = -1;
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}
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#endif
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PlatformUnmap(*this);
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if (file) {
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errno = 0;
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const auto close_result = std::fclose(file) == 0;
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@ -359,11 +406,7 @@ void IOFile::Close() {
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}
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bool IOFile::IsOpen() const {
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#ifdef __unix__
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return file != nullptr || mmap_fd != -1;
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#else
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return file != nullptr;
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#endif
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return file != nullptr || IsMappedFile();
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}
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std::string IOFile::ReadString(size_t length) const {
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@ -380,9 +423,7 @@ size_t IOFile::WriteString(std::span<const char> string) const {
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}
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bool IOFile::Flush() const {
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#ifdef __unix__
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ASSERT(mmap_fd == -1);
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#endif
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ASSERT(!IsMappedFile());
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if (file) {
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errno = 0;
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auto const flush_result = std::fflush(file) == 0;
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@ -397,9 +438,7 @@ bool IOFile::Flush() const {
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}
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bool IOFile::Commit() const {
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#ifdef __unix__
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ASSERT(mmap_fd == -1);
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#endif
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ASSERT(!IsMappedFile());
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if (file) {
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errno = 0;
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#ifdef _WIN32
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@ -418,9 +457,7 @@ bool IOFile::Commit() const {
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}
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bool IOFile::SetSize(u64 size) const {
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#ifdef __unix__
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ASSERT(mmap_fd == -1);
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#endif
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ASSERT(!IsMappedFile());
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if (file) {
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errno = 0;
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#ifdef _WIN32
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@ -439,10 +476,8 @@ bool IOFile::SetSize(u64 size) const {
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}
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u64 IOFile::GetSize() const {
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#ifdef __unix__
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if (mmap_fd != -1)
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if (IsMappedFile())
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return mmap_size;
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#endif
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if (file) {
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// Flush any unwritten buffered data into the file prior to retrieving the file mmap_size.
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std::fflush(file);
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@ -476,8 +511,7 @@ u64 IOFile::GetSize() const {
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}
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bool IOFile::Seek(s64 offset, SeekOrigin origin) const {
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#ifdef __unix__
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if (mmap_fd != -1) {
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if (IsMappedFile()) {
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// fuck you to whoever made this method const
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switch (origin) {
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case SeekOrigin::SetOrigin:
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@ -492,7 +526,6 @@ bool IOFile::Seek(s64 offset, SeekOrigin origin) const {
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}
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return true;
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}
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#endif
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if (file) {
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errno = 0;
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const auto seek_result = fseeko(file, offset, ToSeekOrigin(origin)) == 0;
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@ -507,12 +540,10 @@ bool IOFile::Seek(s64 offset, SeekOrigin origin) const {
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}
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s64 IOFile::Tell() const {
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#ifdef __unix__
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if (mmap_fd != -1) {
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if (IsMappedFile()) {
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errno = 0;
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return s64(mmap_offset);
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}
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#endif
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if (file) {
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errno = 0;
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return ftello(file);
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