+#include "abort.h"
#include "event.h"
#include <glib.h>
#include <gtk/gtk.h>
#include "chimara-glk-private.h"
+#include "window.h"
-extern ChimaraGlkPrivate *glk_data;
+extern GPrivate *glk_data_key;
/**
* glk_set_interrupt_handler:
* @func: A pointer to an interrupt handler function.
*
- * Sets @func to be the interrupt handler. @func should be a pointer to a
+ * Sets @func to be the interrupt handler. @func should be a pointer to a
* function which takes no argument and returns no result. If Glk receives an
- * interrupt, and you have set an interrupt handler, your handler will be
+ * interrupt, and you have set an interrupt handler, your handler will be
* called, before the process is shut down.
- *
+ *
* Initially there is no interrupt handler. You can reset to not having any by
* calling <code>#glk_set_interrupt_handler(%NULL)</code>.
- *
+ *
* If you call glk_set_interrupt_handler() with a new handler function while an
* older one is set, the new one replaces the old one. Glk does not try to queue
* interrupt handlers.
*
* You should not try to interact with the player in your interrupt handler. Do
* not call glk_select() or glk_select_poll(). Anything you print to a window
- * may not be visible to the player.
+ * may not be visible to the player.
*/
void
glk_set_interrupt_handler(void (*func)(void))
{
+ ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
glk_data->interrupt_handler = func;
}
/* Internal function: abort this Glk program, freeing resources and calling the
user's interrupt handler. */
static void
-abort_glk()
+abort_glk(void)
{
+ ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
if(glk_data->interrupt_handler)
(*(glk_data->interrupt_handler))();
- g_signal_emit_by_name(glk_data->self, "stopped");
+ shutdown_glk_pre();
+ shutdown_glk_post();
+ /* If program is terminated by g_thread_exit() instead of returning from the
+ glk_main() function, then the line in glk_exit() where the "stopped"
+ signal is emitted will not be reached. So we have to emit it here. */
+ if(!glk_data->in_startup)
+ g_signal_emit_by_name(glk_data->self, "stopped");
g_thread_exit(NULL);
}
-/* Internal function: Signal this Glk thread to abort. Does nothing if the abort
-mutex has already been freed. (That means the thread already ended.) */
+/* Internal function: check if the Glk program has been interrupted. */
void
-signal_abort()
+check_for_abort(void)
{
- if(glk_data && glk_data->abort_lock) {
- g_mutex_lock(glk_data->abort_lock);
- glk_data->abort_signalled = TRUE;
- g_mutex_unlock(glk_data->abort_lock);
- /* Stop blocking on the event queue condition */
- event_throw(evtype_Abort, NULL, 0, 0);
+ ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
+ g_mutex_lock(&glk_data->abort_lock);
+ if(glk_data->abort_signalled)
+ {
+ g_mutex_unlock(&glk_data->abort_lock);
+ abort_glk();
}
+ g_mutex_unlock(&glk_data->abort_lock);
}
-/* Internal function: check if the Glk program has been interrupted. */
+/* Internal function: shut down all requests and anything not necessary while
+ showing the last displayed configuration of windows. */
void
-check_for_abort()
+shutdown_glk_pre(void)
{
- g_mutex_lock(glk_data->abort_lock);
- if(glk_data->abort_signalled)
+ ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
+
+ /* Stop any timers */
+ glk_request_timer_events(0);
+
+ /* Cancel any pending input requests and flush all window buffers */
+ winid_t win;
+ for(win = glk_window_iterate(NULL, NULL); win; win = glk_window_iterate(win, NULL))
{
- g_mutex_unlock(glk_data->abort_lock);
- abort_glk();
+ switch(win->input_request_type)
+ {
+ case INPUT_REQUEST_CHARACTER:
+ case INPUT_REQUEST_CHARACTER_UNICODE:
+ glk_cancel_char_event(win);
+ break;
+ case INPUT_REQUEST_LINE:
+ case INPUT_REQUEST_LINE_UNICODE:
+ glk_cancel_line_event(win, NULL);
+ break;
+ case INPUT_REQUEST_NONE:
+ default:
+ ; /* TODO: Handle mouse and hyperlink requests */
+ }
+
+ flush_window_buffer(win);
}
- g_mutex_unlock(glk_data->abort_lock);
+
+ /* Close any open resource files */
+ if(glk_data->resource_map != NULL) {
+ giblorb_destroy_map(glk_data->resource_map);
+ glk_data->resource_map = NULL;
+ glk_stream_close(glk_data->resource_file, NULL);
+ }
+
+ /* Empty the input queues */
+ while(g_async_queue_try_pop(glk_data->char_input_queue))
+ ;
+ while(g_async_queue_try_pop(glk_data->line_input_queue))
+ ;
+
+ /* Wait for any pending window rearrange */
+ g_mutex_lock(&glk_data->arrange_lock);
+ if(glk_data->needs_rearrange)
+ g_cond_wait(&glk_data->rearranged, &glk_data->arrange_lock);
+ g_mutex_unlock(&glk_data->arrange_lock);
+}
+
+/* Internal function: do any Glk-thread cleanup for shutting down the Glk library. */
+void
+shutdown_glk_post(void)
+{
+ ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
+
+ /* Free all opaque objects; can't iterate normally, because the objects are
+ being removed from the global iteration lists */
+ if(glk_data->root_window)
+ glk_window_close(glk_data->root_window->data, NULL);
+ g_assert(glk_data->root_window == NULL);
+ strid_t str;
+ while( (str = glk_stream_iterate(NULL, NULL)) )
+ glk_stream_close(str, NULL);
+ frefid_t fref;
+ while( (fref = glk_fileref_iterate(NULL, NULL)) )
+ glk_fileref_destroy(fref);
+ schanid_t sch;
+ while( (sch = glk_schannel_iterate(NULL, NULL)) )
+ glk_schannel_destroy(sch);
+
+ /* Empty the event queue */
+ g_mutex_lock(&glk_data->event_lock);
+ g_queue_foreach(glk_data->event_queue, (GFunc)g_free, NULL);
+
+ /* COMPAT: g_queue_clear could be used here, but only appeared in 2.14 */
+ // g_queue_clear(glk_data->event_queue);
+ g_list_free(glk_data->event_queue->head);
+ glk_data->event_queue->head = glk_data->event_queue->tail = NULL;
+ glk_data->event_queue->length = 0;
+
+ g_mutex_unlock(&glk_data->event_lock);
+
+ /* Reset the abort signaling mechanism */
+ g_mutex_lock(&glk_data->abort_lock);
+ glk_data->abort_signalled = FALSE;
+ g_mutex_unlock(&glk_data->abort_lock);
+
+ /* Reset arrangement mechanism */
+ g_mutex_lock(&glk_data->arrange_lock);
+ glk_data->needs_rearrange = FALSE;
+ glk_data->ignore_next_arrange_event = FALSE;
+ g_mutex_unlock(&glk_data->arrange_lock);
+
+ /* Unref input queues (they are not destroyed because the main thread stil holds a ref */
+ g_async_queue_unref(glk_data->char_input_queue);
+ g_async_queue_unref(glk_data->line_input_queue);
+
+ /* Reset other stuff */
+ glk_data->interrupt_handler = NULL;
+ g_free(glk_data->current_dir);
+ glk_data->current_dir = NULL;
+ /* Remove the dispatch callbacks */
+ glk_data->register_obj = NULL;
+ glk_data->unregister_obj = NULL;
+ glk_data->register_arr = NULL;
+ glk_data->unregister_arr = NULL;
}
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