117 lines
3.4 KiB
C++
117 lines
3.4 KiB
C++
#include "providers/file_provider.hpp"
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#undef __STRICT_ANSI__
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#include <cstdio>
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#include <sys/stat.h>
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#include <time.h>
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#include "helpers/utils.hpp"
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#include "helpers/project_file_handler.hpp"
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#ifdef __APPLE__
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#define off64_t off_t
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#define fopen64 fopen
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#define fseeko64 fseek
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#define ftello64 ftell
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#endif
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namespace hex::prv {
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FileProvider::FileProvider(std::string_view path) : Provider(), m_path(path) {
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this->m_fileStatsValid = stat(path.data(), &this->m_fileStats) == 0;
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this->m_file = fopen64(path.data(), "r+b");
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this->m_readable = true;
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this->m_writable = true;
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if (this->m_file == nullptr) {
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this->m_file = fopen64(path.data(), "rb");
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this->m_writable = false;
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}
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if (this->m_file != nullptr)
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ProjectFile::setFilePath(path);
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}
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FileProvider::~FileProvider() {
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if (this->m_file != nullptr)
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fclose(this->m_file);
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}
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bool FileProvider::isAvailable() {
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return this->m_file != nullptr;
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}
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bool FileProvider::isReadable() {
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return isAvailable() && this->m_readable;
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}
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bool FileProvider::isWritable() {
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return isAvailable() && this->m_writable;
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}
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void FileProvider::read(u64 offset, void *buffer, size_t size) {
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if ((offset + size) > this->getSize() || buffer == nullptr || size == 0)
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return;
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fseeko64(this->m_file, this->getCurrentPage() * PageSize + offset, SEEK_SET);
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size_t readSize = fread(buffer, 1, size, this->m_file);
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for (u64 i = 0; i < readSize; i++)
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if (this->m_patches.back().contains(offset + i))
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reinterpret_cast<u8*>(buffer)[i] = this->m_patches.back()[offset + i];
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}
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void FileProvider::write(u64 offset, const void *buffer, size_t size) {
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if (buffer == nullptr || size == 0)
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return;
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this->m_patches.push_back(this->m_patches.back());
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for (u64 i = 0; i < size; i++)
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this->m_patches.back()[offset + i] = reinterpret_cast<const u8*>(buffer)[i];
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}
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void FileProvider::readRaw(u64 offset, void *buffer, size_t size) {
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if ((offset + size) > this->getSize() || buffer == nullptr || size == 0)
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return;
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fseeko64(this->m_file, this->getCurrentPage() * PageSize + offset, SEEK_SET);
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fread(buffer, 1, size, this->m_file);
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}
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void FileProvider::writeRaw(u64 offset, const void *buffer, size_t size) {
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if (buffer == nullptr || size == 0)
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return;
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fseeko64(this->m_file, offset, SEEK_SET);
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fwrite(buffer, 1, size, this->m_file);
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}
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size_t FileProvider::getActualSize() {
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fseeko64(this->m_file, 0, SEEK_END);
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return ftello64(this->m_file);
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}
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std::vector<std::pair<std::string, std::string>> FileProvider::getDataInformation() {
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std::vector<std::pair<std::string, std::string>> result;
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result.emplace_back("File path", this->m_path);
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result.emplace_back("Size", hex::toByteString(this->getActualSize()));
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if (this->m_fileStatsValid) {
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result.emplace_back("Creation time", ctime(&this->m_fileStats.st_ctime));
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result.emplace_back("Last access time", ctime(&this->m_fileStats.st_atime));
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result.emplace_back("Last modification time", ctime(&this->m_fileStats.st_mtime));
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}
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return result;
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}
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} |