libcarla/include/carla/client/FIleTransfer.cpp

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2024-10-18 13:19:59 +08:00
// Copyright (c) 2021 Computer Vision Center (CVC) at the Universitat Autonoma
// de Barcelona (UAB).
//
// This work is licensed under the terms of the MIT license.
// For a copy, see <https://opensource.org/licenses/MIT>.
#include "FileTransfer.h"
#include "carla/Version.h"
namespace carla {
namespace client {
#ifdef _WIN32
std::string FileTransfer::_filesBaseFolder = std::string(getenv("USERPROFILE")) + "/carlaCache/";
#else
std::string FileTransfer::_filesBaseFolder = std::string(getenv("HOME")) + "/carlaCache/";
#endif
bool FileTransfer::SetFilesBaseFolder(const std::string &path) {
if (path.empty()) return false;
// Check that the path ends in a slash, add it otherwise
if (path[path.size() - 1] != '/' && path[path.size() - 1] != '\\') {
_filesBaseFolder = path + "/";
}
return true;
}
const std::string& FileTransfer::GetFilesBaseFolder() {
return _filesBaseFolder;
}
bool FileTransfer::FileExists(std::string file) {
// Check if the file exists or not
struct stat buffer;
std::string fullpath = _filesBaseFolder;
fullpath += "/";
fullpath += ::carla::version();
fullpath += "/";
fullpath += file;
return (stat(fullpath.c_str(), &buffer) == 0);
}
bool FileTransfer::WriteFile(std::string path, std::vector<uint8_t> content) {
std::string writePath = _filesBaseFolder;
writePath += "/";
writePath += ::carla::version();
writePath += "/";
writePath += path;
// Validate and create the file path
carla::FileSystem::ValidateFilePath(writePath);
// Open the file to truncate it in binary mode
std::ofstream out(writePath, std::ios::trunc | std::ios::binary);
if(!out.good()) return false;
// Write the content on and close it
for(auto file : content) {
out << file;
}
out.close();
return true;
}
std::vector<uint8_t> FileTransfer::ReadFile(std::string path) {
std::string fullpath = _filesBaseFolder;
fullpath += "/";
fullpath += ::carla::version();
fullpath += "/";
fullpath += path;
// Read the binary file from the base folder
std::ifstream file(fullpath, std::ios::binary);
std::vector<uint8_t> content(std::istreambuf_iterator<char>(file), {});
return content;
}
} // namespace client
} // namespace carla