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Collect events in the main thread

This commit is contained in:
Přemysl Eric Janouch 2020-09-25 06:45:27 +02:00
parent 3dd4e69235
commit 27a63e3414
Signed by: p
GPG Key ID: A0420B94F92B9493
1 changed files with 55 additions and 13 deletions
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68
wdmtg.c
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@ -243,6 +243,41 @@ x_text_property(xcb_window_t window, xcb_atom_t property)
return NULL;
}
// --- Async Queue Source ------------------------------------------------------
static gboolean
async_queue_source_prepare(G_GNUC_UNUSED GSource *source,
G_GNUC_UNUSED gint *timeout_)
{
return g_async_queue_length(g.queue) > 0;
}
static gboolean
async_queue_source_dispatch(G_GNUC_UNUSED GSource *source,
GSourceFunc callback, gpointer user_data)
{
// I don't want to call it once per message, prefer batch processing
if (callback)
return callback(user_data);
return G_SOURCE_CONTINUE;
}
static GSource *
async_queue_source_new(void)
{
static GSourceFuncs funcs = {
.prepare = async_queue_source_prepare,
.check = NULL,
.dispatch = async_queue_source_dispatch,
.finalize = NULL,
};
GSource *source = g_source_new(&funcs, sizeof *source);
g_source_set_name(source, "AsyncQueueSource");
return source;
}
// --- Generator ---------------------------------------------------------------
static void
@ -252,6 +287,9 @@ push_event(void) {
event->title = g_strdup(gen.current_title);
event->idle = gen.current_idle;
g_async_queue_push(g.queue, event);
// This is the best thing GLib exposes (GWakeUp is internal)
g_main_context_wakeup(g_main_context_default());
}
static char *
@ -309,11 +347,8 @@ update_current_window(void)
}
free(gpr);
if (update_window_title(new_title)) {
printf("Window changed: %s\n",
gen.current_title ? gen.current_title : "(none)");
if (update_window_title(new_title))
push_event();
}
}
static void
@ -324,11 +359,9 @@ on_x_property_notify(const xcb_property_notify_event_t *ev)
update_current_window();
} else if (ev->window == gen.current_window &&
ev->atom == gen.atom_net_wm_name) {
if (update_window_title(x_window_title(ev->window))) {
printf("Title changed: %s\n", gen.current_title);
if (update_window_title(x_window_title(ev->window)))
push_event();
}
}
}
static void
@ -357,7 +390,6 @@ static void
on_x_alarm_notify(const xcb_sync_alarm_notify_event_t *ev)
{
if (ev->alarm == gen.idle_alarm_inactive) {
printf("User is inactive\n");
gen.current_idle = true;
push_event();
@ -369,7 +401,6 @@ on_x_alarm_notify(const xcb_sync_alarm_notify_event_t *ev)
set_idle_alarm(&gen.idle_alarm_active,
XCB_SYNC_TESTTYPE_NEGATIVE_COMPARISON, minus_one);
} else if (ev->alarm == gen.idle_alarm_active) {
printf("User is active\n");
gen.current_idle = false;
push_event();
@ -508,6 +539,18 @@ generator_cleanup(void)
// --- Main --------------------------------------------------------------------
static gboolean
on_queue_incoming(G_GNUC_UNUSED gpointer user_data)
{
struct event *event = NULL;
while ((event = g_async_queue_try_pop(g.queue))) {
printf("Event: ts: %ld, title: %s, idle: %d\n",
event->timestamp, event->title ?: "(none)", event->idle);
event_free(event);
}
return G_SOURCE_CONTINUE;
}
static sqlite3 *
database_init(const gchar *db_path)
{
@ -642,10 +685,9 @@ main(int argc, char *argv[])
g.db = database_init(db_path);
g_free(db_path);
// TODO: somehow read events from the async queue
// TODO: how in the name of fuck would our custom source wake up a sleeping
// main loop? There is g_main_context_wakeup() but...
// - GWakeUp is internal, apparently
GSource *queue_source = async_queue_source_new();
g_source_set_callback(queue_source, on_queue_incoming, NULL, NULL);
g_source_attach(queue_source, g_main_context_default());
// TODO: listen for connections on the control socket