Ken Van Hoeylandt
78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
#include <Tactility/file/ObjectFile.h>
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#include <Tactility/file/ObjectFilePrivate.h>
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#include <cstring>
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#include <tactility/log.h>
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namespace tt::file {
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constexpr auto* TAG = "ObjectFileReader";
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bool ObjectFileReader::open() {
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auto opening_file = std::unique_ptr<FILE, FileCloser>(fopen(filePath.c_str(), "r"));
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if (opening_file == nullptr) {
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LOG_E(TAG, "Failed to open file %s", filePath.c_str());
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return false;
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}
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FileHeader file_header;
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if (fread(&file_header, sizeof(FileHeader), 1, opening_file.get()) != 1) {
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LOG_E(TAG, "Failed to read file header from %s", filePath.c_str());
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return false;
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}
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if (file_header.identifier != OBJECT_FILE_IDENTIFIER) {
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LOG_E(TAG, "Invalid file type for %s", filePath.c_str());
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return false;
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}
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if (file_header.version != OBJECT_FILE_VERSION) {
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LOG_E(TAG, "Unknown version for %s: %u", filePath.c_str(), (unsigned)file_header.identifier);
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return false;
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}
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ContentHeader content_header;
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if (fread(&content_header, sizeof(ContentHeader), 1, opening_file.get()) != 1) {
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LOG_E(TAG, "Failed to read content header from %s", filePath.c_str());
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return false;
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}
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if (recordSize != content_header.recordSize) {
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LOG_E(TAG, "Record size mismatch for %s: expected %u, got %u", filePath.c_str(), (unsigned)recordSize, (unsigned)content_header.recordSize);
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return false;
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}
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recordCount = content_header.recordCount;
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recordVersion = content_header.recordVersion;
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file = std::move(opening_file);
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LOG_D(TAG, "File version: %u", (unsigned)file_header.version);
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LOG_D(TAG, "Content: version = %u, size = %u bytes, count = %u", (unsigned)content_header.recordVersion, (unsigned)content_header.recordSize, (unsigned)content_header.recordCount);
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return true;
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}
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void ObjectFileReader::close() {
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recordCount = 0;
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recordVersion = 0;
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recordsRead = 0;
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file = nullptr;
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}
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bool ObjectFileReader::readNext(void* output) {
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if (file == nullptr) {
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LOG_E(TAG, "File not open");
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return false;
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}
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bool result = fread(output, recordSize, 1, file.get()) == 1;
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if (result) {
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recordsRead++;
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}
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return result;
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}
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} |