mirror of
https://github.com/hrydgard/ppsspp.git
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96 lines
2.4 KiB
C++
96 lines
2.4 KiB
C++
// Copyright (c) 2012- PPSSPP Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0 or later versions.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official git repository and contact information can be found at
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// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
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#include <cstdio>
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#include "file/file_util.h"
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#include "Common/FileUtil.h"
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#include "Core/FileLoaders/LocalFileLoader.h"
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LocalFileLoader::LocalFileLoader(const std::string &filename)
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: fd_(0), f_(nullptr), filesize_(0), filename_(filename) {
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f_ = File::OpenCFile(filename, "rb");
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if (!f_) {
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return;
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}
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#ifdef ANDROID
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// Android NDK does not support 64-bit file I/O using C streams
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// so we fall back onto syscalls
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fd_ = fileno(f_);
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off64_t off = lseek64(fd_, 0, SEEK_END);
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filesize_ = off;
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lseek64(fd_, 0, SEEK_SET);
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#else
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fseek(f_, 0, SEEK_END);
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filesize_ = ftello(f_);
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fseek(f_, 0, SEEK_SET);
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#endif
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}
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LocalFileLoader::~LocalFileLoader() {
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if (f_) {
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fclose(f_);
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}
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}
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bool LocalFileLoader::Exists() {
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// If we couldn't open it for reading, we say it does not exist.
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if (f_ || IsDirectory()) {
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FileInfo info;
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return getFileInfo(filename_.c_str(), &info);
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}
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return false;
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}
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bool LocalFileLoader::IsDirectory() {
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FileInfo info;
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if (getFileInfo(filename_.c_str(), &info)) {
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return info.isDirectory;
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}
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return false;
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}
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s64 LocalFileLoader::FileSize() {
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return filesize_;
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}
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std::string LocalFileLoader::Path() const {
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return filename_;
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}
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void LocalFileLoader::Seek(s64 absolutePos) {
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#ifdef ANDROID
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lseek64(fd_, absolutePos, SEEK_SET);
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#else
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fseeko(f_, absolutePos, SEEK_SET);
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#endif
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}
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size_t LocalFileLoader::Read(size_t bytes, size_t count, void *data) {
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#ifdef ANDROID
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return read(fd_, data, bytes * count) / bytes;
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#else
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return fread(data, bytes, count, f_);
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#endif
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}
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size_t LocalFileLoader::ReadAt(s64 absolutePos, size_t bytes, size_t count, void *data) {
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Seek(absolutePos);
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return Read(bytes, count, data);
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}
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