fsfw/src/fsfw_hal/host/HostFilesystem.cpp

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#include "HostFilesystem.h"
#include <filesystem>
#include <fstream>
#include "fsfw/serialize.h"
using namespace std::filesystem;
using namespace std;
HostFilesystem::HostFilesystem() = default;
ReturnValue_t HostFilesystem::writeToFile(FileOpParams params, const uint8_t *data) {
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if (params.path() == nullptr) {
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return HasReturnvaluesIF::RETURN_FAILED;
}
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path path(params.path());
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if (not exists(path)) {
return HasFileSystemIF::FILE_DOES_NOT_EXIST;
}
ofstream file(path, ios::binary | ios::out);
if (file.fail()) {
return HasFileSystemIF::GENERIC_FILE_ERROR;
}
file.seekp(static_cast<unsigned int>(params.offset));
file.write(reinterpret_cast<const char *>(data), static_cast<unsigned int>(params.size));
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t HostFilesystem::readFromFile(FileOpParams params, uint8_t **buffer, size_t &readSize,
size_t maxSize) {
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if (params.path() == nullptr) {
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return HasReturnvaluesIF::RETURN_FAILED;
}
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path path(params.path());
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if (not exists(path)) {
return HasFileSystemIF::FILE_DOES_NOT_EXIST;
}
ifstream file(path);
if (file.fail()) {
return HasFileSystemIF::GENERIC_FILE_ERROR;
}
auto readLen = static_cast<unsigned int>(params.offset);
file.seekg(readLen);
if (readSize + params.size > maxSize) {
return SerializeIF::BUFFER_TOO_SHORT;
}
file.read(reinterpret_cast<char *>(*buffer), readLen);
readSize += readLen;
*buffer += readLen;
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t HostFilesystem::createFile(FilesystemParams params, const uint8_t *data,
size_t size) {
if (params.path == nullptr) {
return HasReturnvaluesIF::RETURN_FAILED;
}
path path(params.path);
if (exists(path)) {
return HasFileSystemIF::FILE_ALREADY_EXISTS;
}
ofstream file(path);
if (file.fail()) {
return HasFileSystemIF::GENERIC_FILE_ERROR;
}
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t HostFilesystem::removeFile(const char *path_, FileSystemArgsIF *args) {
if (path_ == nullptr) {
return HasReturnvaluesIF::RETURN_FAILED;
}
path path(path_);
if (not exists(path)) {
return HasFileSystemIF::FILE_DOES_NOT_EXIST;
}
if (remove(path, errorCode)) {
return HasReturnvaluesIF::RETURN_OK;
}
return HasFileSystemIF::GENERIC_FILE_ERROR;
}
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ReturnValue_t HostFilesystem::createDirectory(FilesystemParams params, bool createParentDirs) {
if (params.path == nullptr) {
return HasReturnvaluesIF::RETURN_FAILED;
}
path dirPath(params.path);
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if (exists(dirPath)) {
return HasFileSystemIF::DIRECTORY_ALREADY_EXISTS;
}
if (is_regular_file(dirPath)) {
return HasFileSystemIF::NOT_A_DIRECTORY;
}
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if (createParentDirs) {
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if (create_directories(dirPath, errorCode)) {
return HasReturnvaluesIF::RETURN_OK;
}
return HasFileSystemIF::GENERIC_DIR_ERROR;
}
if (create_directory(dirPath, errorCode)) {
return HasReturnvaluesIF::RETURN_OK;
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}
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return HasFileSystemIF::GENERIC_DIR_ERROR;
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}
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ReturnValue_t HostFilesystem::removeDirectory(FilesystemParams params, bool deleteRecurively) {
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if (params.path == nullptr) {
return HasReturnvaluesIF::RETURN_FAILED;
}
path dirPath(params.path);
if (not exists(dirPath)) {
return HasFileSystemIF::DIRECTORY_DOES_NOT_EXIST;
}
if (is_regular_file(dirPath)) {
return HasFileSystemIF::NOT_A_DIRECTORY;
}
if (deleteRecurively) {
if (remove_all(dirPath, errorCode)) {
return HasReturnvaluesIF::RETURN_OK;
}
} else {
if (remove(dirPath, errorCode)) {
return HasReturnvaluesIF::RETURN_OK;
}
}
// Error handling
if (errorCode == std::errc::directory_not_empty) {
return HasFileSystemIF::DIRECTORY_NOT_EMPTY;
}
return HasFileSystemIF::GENERIC_DIR_ERROR;
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}
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ReturnValue_t HostFilesystem::rename(const char *oldPath_, const char *newPath_,
FileSystemArgsIF *args) {
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if (oldPath_ == nullptr or newPath_ == nullptr) {
return HasReturnvaluesIF::RETURN_FAILED;
}
path oldPath(oldPath_);
path newPath(newPath_);
errorCode.clear();
std::filesystem::rename(oldPath, newPath, errorCode);
if (errorCode) {
return HasFileSystemIF::GENERIC_RENAME_ERROR;
}
return HasReturnvaluesIF::RETURN_OK;
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}