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feat(runtime): 用基于 poll 的事件循环代替阻塞式事件等待

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Zedhugh Chen
2026-06-10 01:26:05 +08:00
parent 4e713682e4
commit dbbbbce379
6 changed files with 164 additions and 45 deletions
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81
src/backend/x11/event.c
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@@ -446,6 +446,55 @@ static bool handle_client_message(
return false;
}
static bool handle_event(
backend_t *backend,
xcb_generic_event_t *raw_event,
event_t *event
) {
uint8_t response_type = XCB_EVENT_RESPONSE_TYPE(raw_event);
bool handled = false;
auto label = xcb_event_get_label(response_type);
printf("xcb event type: %s[%u]\n", label, response_type);
switch (response_type) {
#define EVENT(type, handler) \
case type: \
event_reset(event); \
handled = handler(backend, event, (void *)raw_event); \
break
EVENT(XCB_MAP_REQUEST, handle_map_request);
EVENT(XCB_UNMAP_NOTIFY, handle_unmap_notify);
EVENT(XCB_DESTROY_NOTIFY, handle_destroy_notify);
EVENT(XCB_CONFIGURE_REQUEST, handle_configure_request);
EVENT(XCB_KEY_PRESS, handle_key_press);
EVENT(XCB_ENTER_NOTIFY, handle_enter_notify);
EVENT(XCB_PROPERTY_NOTIFY, handle_property_notify);
EVENT(XCB_CLIENT_MESSAGE, handle_client_message);
#undef EVENT
default:
break;
}
p_delete(&raw_event);
if (handled) return true;
event_reset(event);
return false;
}
bool backend_poll_event(backend_t *backend, event_t *event) {
if (!backend || !backend->conn || !event) return false;
auto raw_event = xcb_poll_for_event(backend->conn);
if (!raw_event) return false;
return handle_event(backend, raw_event, event);
}
bool backend_next_event(backend_t *backend, event_t *event) {
if (!backend || !backend->conn || !event) return false;
@@ -453,36 +502,6 @@ bool backend_next_event(backend_t *backend, event_t *event) {
xcb_generic_event_t *raw_event = xcb_wait_for_event(backend->conn);
if (!raw_event) return false;
uint8_t response_type = XCB_EVENT_RESPONSE_TYPE(raw_event);
bool handled = false;
auto label = xcb_event_get_label(response_type);
printf("xcb event type: %s[%u]\n", label, response_type);
switch (response_type) {
#define EVENT(type, handler) \
case type: \
event_reset(event); \
handled = handler(backend, event, (void *)raw_event); \
break
EVENT(XCB_MAP_REQUEST, handle_map_request);
EVENT(XCB_UNMAP_NOTIFY, handle_unmap_notify);
EVENT(XCB_DESTROY_NOTIFY, handle_destroy_notify);
EVENT(XCB_CONFIGURE_REQUEST, handle_configure_request);
EVENT(XCB_KEY_PRESS, handle_key_press);
EVENT(XCB_ENTER_NOTIFY, handle_enter_notify);
EVENT(XCB_PROPERTY_NOTIFY, handle_property_notify);
EVENT(XCB_CLIENT_MESSAGE, handle_client_message);
#undef EVENT
default:
break;
}
p_delete(&raw_event);
if (handled) return true;
event_reset(event);
if (handle_event(backend, raw_event, event)) return true;
}
}