void ValueLatch<T>::set(T&& value)
{
std::unique_lock<std::mutex> lock(mMutex);
if (mValue) {
throw UtilsException("Cannot set value multiple times");
}
mValue.reset(new T(std::move(value)));
mCondition.notify_one();
}
std::string get_home_directory() throw (UtilsException) {
#ifdef __unix__
struct passwd *pw;
pw = getpwuid(geteuid());
if (!pw) {
throw UtilsException("Function getpwuid() failed.");
}
return std::string(pw->pw_dir);
#elif _WIN32
char path[MAX_PATH];
if (!(SHGetFolderPathA(NULL, CSIDL_PROFILE, NULL, 0, path) == S_OK)) {
throw UtilsException("Function SHGetFolderPathA() failed.");
}
return std::string(path);
#endif
}
T ValueLatch<T>::get(const unsigned int timeoutMs)
{
std::unique_lock<std::mutex> lock(mMutex);
if (mCondition.wait_for(lock, std::chrono::milliseconds(timeoutMs), [this]() {
return (bool)mValue;
}) ) {
std::unique_ptr<T> retValue(std::move(mValue));
return T(std::move(*retValue));
} else {
throw UtilsException("Timeout occured");
}
}
void create_directory(const std::string& directory, const std::string& in) throw (UtilsException) {
std::string dir;
dir = in + dir_separator + directory;
#ifdef __unix__
int rv = mkdir(dir.c_str(), S_IRWXU);
if (rv && errno != EEXIST) {
throw UtilsException(strerror(errno));
}
#elif _WIN32
CreateDirectoryA(dir.c_str(), 0);
#endif
}
