FSW_SESSION * get_session(const FSW_HANDLE handle)
{
if (sessions.find(handle) == sessions.end())
throw int(FSW_ERR_SESSION_UNKNOWN);
#ifdef HAVE_CXX_UNIQUE_PTR
return sessions[handle].get();
#else
return sessions[handle];
#endif
}
FSW_HANDLE fsw_init_session(const fsw_monitor_type type)
{
#ifdef HAVE_CXX_MUTEX
std::lock_guard<std::mutex> session_lock(session_mutex);
#endif
if (!srand_initialized)
{
srand(time(nullptr));
srand_initialized = true;
}
int handle;
do
{
handle = rand();
}
while (sessions.find(handle) != sessions.end());
FSW_SESSION *session = new FSW_SESSION{};
session->handle = handle;
session->type = type;
// Store the handle and a mutex to guard access to session instances.
#ifdef HAVE_CXX_UNIQUE_PTR
sessions[handle] = unique_ptr<FSW_SESSION>(session);
#else
sessions[handle] = session;
#endif
#ifdef HAVE_CXX_MUTEX
# ifdef HAVE_CXX_UNIQUE_PTR
session_mutexes[handle] = unique_ptr<mutex>(new mutex);
# else
session_mutexes[handle] = new mutex;
# endif
#endif
return handle;
}