On Sat, Feb 16, 2013 at 10:48:15AM +0800, Wenchao Xia wrote:
> +static int create_context(QBlockContext **p_context)
> +{
> + /*
> + * library init comes here, to make sure block_init is called before with
> + * flag __attribute__((constructor)).
> + */
> + if (pthread_mutex_lock(&libqb_global_data.mutex)) {
> + return QB_ERR_FATAL_ERR;
> + }
> + if (libqb_global_data.init_flag == 0) {
> + qemu_init_main_loop();
> + bdrv_init();
> + libqb_global_data.init_flag = 1;
> + }
> + if (pthread_mutex_unlock(&libqb_global_data.mutex)) {
> + return QB_ERR_FATAL_ERR;
> + }
http://developer.gnome.org/glib/2.34/glib-Threads.html#g-once
