/* to be sure to avoid multiple creation */
var_Create( p_this->p_libvlc, "httpd_mutex", VLC_VAR_MUTEX );
var_Get( p_this->p_libvlc, "httpd_mutex", &lockval );
vlc_mutex_lock( lockval.p_address );
/* to be sure to avoid multiple creation */
var_Create( p_this->p_libvlc, "httpd_mutex", VLC_VAR_MUTEX );
var_Get( p_this->p_libvlc, "httpd_mutex", &lockval );
vlc_mutex_lock( lockval.p_address );