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Move notif_queue and remote_async_get_pending_events_token to remote_state
This patch also removes notif_xfree, and don't pass it QUEUE_alloc, because we don't have to free notif_client when the remote_notif_state is freed. gdb: 2013-10-04 Yao Qi <yao@codesourcery.com> * remote-notif.c (DECLARE_QUEUE_P): Remove. (notif_queue): Remove. (remote_notif_process): Add one parameter 'notif_queue'. Update comments. Callers update. (remote_async_get_pending_events_token): Remove. (remote_notif_register_async_event_handler): Remove. (remote_notif_unregister_async_event_handler): Remove. (handle_notification): Add parameter 'notif_queue'. Update comments. Callers update. (notif_xfree): Remove. (remote_notif_state_allocate): New function. (remote_notif_state_xfree): New function. (_initialize_notif): Remove code to allocate queue. * remote-notif.h (DECLARE_QUEUE_P): Moved from remote-notif.c. (struct remote_notif_state): New. (handle_notification): Update declaration. (remote_notif_process): Likewise. (remote_notif_register_async_event_handler): Remove. (remote_notif_unregister_async_event_handler): Remove. (remote_notif_state_allocate): Declare. (remote_notif_state_xfree): Declare. * remote.c (struct remote_state) <notif_state>: New field. (remote_close): Don't call remote_notif_unregister_async_event_handler. Call remote_notif_state_xfree. (remote_open_1): Don't call remote_notif_register_async_event_handler. Call remote_notif_state_allocate.
This commit is contained in:
Yao Qi
parent
5e5ac9a570
commit
5965e02896
@ -1,3 +1,34 @@
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2013-10-04 Yao Qi <yao@codesourcery.com>
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* remote-notif.c (DECLARE_QUEUE_P): Remove.
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(notif_queue): Remove.
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(remote_notif_process): Add one parameter 'notif_queue'.
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Update comments. Callers update.
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(remote_async_get_pending_events_token): Remove.
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(remote_notif_register_async_event_handler): Remove.
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(remote_notif_unregister_async_event_handler): Remove.
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(handle_notification): Add parameter 'notif_queue'. Update
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comments. Callers update.
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(notif_xfree): Remove.
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(remote_notif_state_allocate): New function.
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(remote_notif_state_xfree): New function.
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(_initialize_notif): Remove code to allocate queue.
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* remote-notif.h (DECLARE_QUEUE_P): Moved from remote-notif.c.
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(struct remote_notif_state): New.
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(handle_notification): Update declaration.
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(remote_notif_process): Likewise.
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(remote_notif_register_async_event_handler): Remove.
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(remote_notif_unregister_async_event_handler): Remove.
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(remote_notif_state_allocate): Declare.
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(remote_notif_state_xfree): Declare.
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* remote.c (struct remote_state) <notif_state>: New field.
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(remote_close): Don't call
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remote_notif_unregister_async_event_handler. Call
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remote_notif_state_xfree.
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(remote_open_1): Don't call
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remote_notif_register_async_event_handler. Call
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remote_notif_state_allocate.
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2013-10-04 Yao Qi <yao@codesourcery.com>
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* varobj.c (create_child_with_value): Remove 'const' from the
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@ -91,21 +91,19 @@ remote_notif_parse (struct notif_client *nc, char *buf)
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return event;
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}
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DECLARE_QUEUE_P (notif_client_p);
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DEFINE_QUEUE_P (notif_client_p);
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static QUEUE(notif_client_p) *notif_queue;
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/* Process notifications one by one. EXCEPT is not expected in
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the queue. */
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/* Process notifications in STATE's notification queue one by one.
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EXCEPT is not expected in the queue. */
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void
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remote_notif_process (struct notif_client *except)
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remote_notif_process (struct remote_notif_state *state,
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struct notif_client *except)
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{
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while (!QUEUE_is_empty (notif_client_p, notif_queue))
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while (!QUEUE_is_empty (notif_client_p, state->notif_queue))
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{
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struct notif_client *nc = QUEUE_deque (notif_client_p,
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notif_queue);
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state->notif_queue);
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gdb_assert (nc != except);
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@ -118,39 +116,14 @@ static void
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remote_async_get_pending_events_handler (gdb_client_data data)
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{
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gdb_assert (non_stop);
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remote_notif_process (NULL);
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remote_notif_process (data, NULL);
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}
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/* Asynchronous signal handle registered as event loop source for when
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the remote sent us a notification. The registered callback
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will do a ACK sequence to pull the rest of the events out of
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the remote side into our event queue. */
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static struct async_event_handler *remote_async_get_pending_events_token;
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/* Register async_event_handler for notification. */
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/* Remote notification handler. Parse BUF, queue notification and
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update STATE. */
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void
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remote_notif_register_async_event_handler (void)
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{
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remote_async_get_pending_events_token
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= create_async_event_handler (remote_async_get_pending_events_handler,
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NULL);
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}
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/* Unregister async_event_handler for notification. */
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void
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remote_notif_unregister_async_event_handler (void)
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{
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if (remote_async_get_pending_events_token)
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delete_async_event_handler (&remote_async_get_pending_events_token);
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}
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/* Remote notification handler. */
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void
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handle_notification (char *buf)
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handle_notification (struct remote_notif_state *state, char *buf)
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{
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struct notif_client *nc = NULL;
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int i;
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@ -188,7 +161,7 @@ handle_notification (char *buf)
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/* Notify the event loop there's a stop reply to acknowledge
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and that there may be more events to fetch. */
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QUEUE_enque (notif_client_p, notif_queue, nc);
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QUEUE_enque (notif_client_p, state->notif_queue, nc);
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if (non_stop)
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{
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/* In non-stop, We mark REMOTE_ASYNC_GET_PENDING_EVENTS_TOKEN
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@ -227,7 +200,7 @@ handle_notification (char *buf)
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2.3) <-- T05 thread:2
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These pending notifications can be processed later. */
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mark_async_event_handler (remote_async_get_pending_events_token);
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mark_async_event_handler (state->get_pending_events_token);
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}
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if (notif_debug)
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@ -250,15 +223,36 @@ do_notif_event_xfree (void *arg)
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xfree (event);
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}
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static void
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notif_xfree (struct notif_client *notif)
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{
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if (notif->pending_event != NULL
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&& notif->pending_event->dtr != NULL)
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notif->pending_event->dtr (notif->pending_event);
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/* Return an allocated remote_notif_state. */
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xfree (notif->pending_event);
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xfree (notif);
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struct remote_notif_state *
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remote_notif_state_allocate (void)
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{
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struct remote_notif_state *notif_state = xzalloc (sizeof (*notif_state));
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notif_state->notif_queue = QUEUE_alloc (notif_client_p, NULL);
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/* Register async_event_handler for notification. */
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notif_state->get_pending_events_token
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= create_async_event_handler (remote_async_get_pending_events_handler,
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notif_state);
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return notif_state;
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}
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/* Free STATE and its fields. */
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void
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remote_notif_state_xfree (struct remote_notif_state *state)
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{
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QUEUE_free (notif_client_p, state->notif_queue);
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/* Unregister async_event_handler for notification. */
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if (state->get_pending_events_token != NULL)
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delete_async_event_handler (&state->get_pending_events_token);
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xfree (state);
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}
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/* -Wmissing-prototypes */
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@ -267,8 +261,6 @@ extern initialize_file_ftype _initialize_notif;
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void
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_initialize_notif (void)
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{
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notif_queue = QUEUE_alloc (notif_client_p, notif_xfree);
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add_setshow_boolean_cmd ("notification", no_class, ¬if_debug,
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_("\
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Set debugging of async remote notification."), _("\
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@ -68,16 +68,36 @@ typedef struct notif_client
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struct notif_event *pending_event;
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} *notif_client_p;
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DECLARE_QUEUE_P (notif_client_p);
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/* State on remote async notification. */
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struct remote_notif_state
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{
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/* Notification queue. */
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QUEUE(notif_client_p) *notif_queue;
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/* Asynchronous signal handle registered as event loop source for when
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the remote sent us a notification. The registered callback
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will do a ACK sequence to pull the rest of the events out of
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the remote side into our event queue. */
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struct async_event_handler *get_pending_events_token;
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};
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void remote_notif_ack (struct notif_client *nc, char *buf);
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struct notif_event *remote_notif_parse (struct notif_client *nc,
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char *buf);
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void handle_notification (char *buf);
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void handle_notification (struct remote_notif_state *notif_state,
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char *buf);
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void remote_notif_register_async_event_handler (void);
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void remote_notif_unregister_async_event_handler (void);
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void remote_notif_process (struct remote_notif_state *state,
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struct notif_client *except);
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struct remote_notif_state *remote_notif_state_allocate (void);
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void remote_notif_state_xfree (struct remote_notif_state *state);
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void remote_notif_process (struct notif_client *except);
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extern struct notif_client notif_client_stop;
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extern int notif_debug;
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13
gdb/remote.c
13
gdb/remote.c
@ -425,6 +425,9 @@ struct remote_state
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threadref echo_nextthread;
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threadref nextthread;
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threadref resultthreadlist[MAXTHREADLISTRESULTS];
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/* The state of remote notification. */
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struct remote_notif_state *notif_state;
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};
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/* Private data that we'll store in (struct thread_info)->private. */
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@ -3073,7 +3076,7 @@ remote_close (void)
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if (remote_async_inferior_event_token)
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delete_async_event_handler (&remote_async_inferior_event_token);
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remote_notif_unregister_async_event_handler ();
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remote_notif_state_xfree (rs->notif_state);
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trace_reset_local_state ();
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}
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@ -4337,7 +4340,7 @@ remote_open_1 (char *name, int from_tty,
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remote_async_inferior_event_token
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= create_async_event_handler (remote_async_inferior_event_handler,
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NULL);
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remote_notif_register_async_event_handler ();
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rs->notif_state = remote_notif_state_allocate ();
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/* Reset the target state; these things will be queried either by
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remote_query_supported or as they are needed. */
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@ -4931,7 +4934,7 @@ remote_resume (struct target_ops *ops,
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before resuming inferior, because inferior was stopped and no RSP
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traffic at that moment. */
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if (!non_stop)
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remote_notif_process (¬if_client_stop);
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remote_notif_process (rs->notif_state, ¬if_client_stop);
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rs->last_sent_signal = siggnal;
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rs->last_sent_step = step;
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@ -7352,7 +7355,7 @@ putpkt_binary (char *buf, int cnt)
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str);
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do_cleanups (old_chain);
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}
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handle_notification (rs->buf);
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handle_notification (rs->notif_state, rs->buf);
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/* We're in sync now, rewait for the ack. */
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tcount = 0;
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}
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@ -7738,7 +7741,7 @@ getpkt_or_notif_sane_1 (char **buf, long *sizeof_buf, int forever,
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if (is_notif != NULL)
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*is_notif = 1;
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handle_notification (*buf);
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handle_notification (rs->notif_state, *buf);
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/* Notifications require no acknowledgement. */
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