// support recursive locks like Win32, i.e. a thread can lock a mutex which
// it had itself already locked
+ //
+ // but initialization of recursive mutexes is non portable <sigh>, so try
+ // several methods
+#ifdef HAVE_PTHREAD_MUTEXATTR_T
pthread_mutexattr_t attr;
pthread_mutexattr_init(&attr);
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+
pthread_mutex_init(&(m_internal->m_mutex), &attr);
+#elif defined(HAVE_PTHREAD_RECURSIVE_MUTEX_INITIALIZER)
+ // we can use this only as initializer so we have to assign it first to a
+ // temp var - assigning directly to m_mutex wouldn't even compile
+ pthread_mutex_t mutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
+ m_internal->m_mutex = mutex;
+#else // no recursive mutexes
+ pthread_mutex_init(&(m_internal->m_mutex), NULL);
+#endif // HAVE_PTHREAD_MUTEXATTR_T/...
m_locked = 0;
}