gas/

[deliverable/binutils-gdb.git] / gdb / event-loop.h

diff --git a/gdb/event-loop.h b/gdb/event-loop.h
index bdf13e0fe78fab2664766d0d38177f62c3e8c213..16c228637c2fba3ca7f5c422d8e0ff76130c5bf8 100644 (file)
--- a/gdb/event-loop.h
+++ b/gdb/event-loop.h
@@ -1,6 +1,5 @@
 /* Definitions used by the GDB event loop.
 /* Definitions used by the GDB event loop.

-   Copyright (C) 1999, 2000, 2007, 2008, 2009, 2010
-   Free Software Foundation, Inc.
+   Copyright (C) 1999-2013 Free Software Foundation, Inc.

    Written by Elena Zannoni <ezannoni@cygnus.com> of Cygnus Solutions.
 
    This file is part of GDB.
    Written by Elena Zannoni <ezannoni@cygnus.com> of Cygnus Solutions.
 
    This file is part of GDB.


@@ -18,18 +17,18 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 

-/* An event loop listens for events from multiple event sources. When
+/* An event loop listens for events from multiple event sources.  When

    an event arrives, it is queued and processed by calling the
    an event arrives, it is queued and processed by calling the

-   appropriate event handler. The event loop then continues to listen
-   for more events. An event loop completes when there are no event
+   appropriate event handler.  The event loop then continues to listen
+   for more events.  An event loop completes when there are no event

    sources to listen on.  External event sources can be plugged into
    the loop.
 
    There are 4 main components:
    sources to listen on.  External event sources can be plugged into
    the loop.
 
    There are 4 main components:

-   - a list of file descriptors to be monitored, GDB_NOTIFIER.  
+   - a list of file descriptors to be monitored, GDB_NOTIFIER.

    - a list of asynchronous event sources to be monitored,
      ASYNC_EVENT_HANDLER_LIST.
    - a list of asynchronous event sources to be monitored,
      ASYNC_EVENT_HANDLER_LIST.

-   - a list of events that have occurred, EVENT_QUEUE.  
+   - a list of events that have occurred, EVENT_QUEUE.

    - a list of signal handling functions, SIGHANDLER_LIST.
 
    GDB_NOTIFIER keeps track of the file descriptor based event
    - a list of signal handling functions, SIGHANDLER_LIST.
 
    GDB_NOTIFIER keeps track of the file descriptor based event


@@ -64,9 +63,9 @@
    functions that are invoked through traditional signal handlers.
    The actions to be taken is response to such events will be executed
    when the SIGHANDLER_LIST is scanned, the next time through the
    functions that are invoked through traditional signal handlers.
    The actions to be taken is response to such events will be executed
    when the SIGHANDLER_LIST is scanned, the next time through the

-   infinite loop.  
+   infinite loop.

 
 

-   Corollary tasks are the creation and deletion of event sources. */
+   Corollary tasks are the creation and deletion of event sources.  */

 
 typedef void *gdb_client_data;
 struct async_signal_handler;
 
 typedef void *gdb_client_data;
 struct async_signal_handler;


@@ -76,35 +75,32 @@ typedef void (sig_handler_func) (gdb_client_data);
 typedef void (async_event_handler_func) (gdb_client_data);
 typedef void (timer_handler_func) (gdb_client_data);
 
 typedef void (async_event_handler_func) (gdb_client_data);
 typedef void (timer_handler_func) (gdb_client_data);
 

-/* Where to add an event onto the event queue, by queue_event. */
+/* Where to add an event onto the event queue, by queue_event.  */

 typedef enum
   {
 typedef enum
   {

-    /* Add at tail of queue. It will be processed in first in first
-       out order. */
+    /* Add at tail of queue.  It will be processed in first in first
+       out order.  */

     TAIL,
     TAIL,

-    /* Add at head of queue. It will be processed in last in first out
-       order. */
+    /* Add at head of queue.  It will be processed in last in first
+       out order.  */

     HEAD
   }
 queue_position;
 
     HEAD
   }
 queue_position;
 

-/* Tell create_file_handler what events we are interested in. 
-   This is used by the select version of the event loop. */
-
-#define GDB_READABLE   (1<<1)
-#define GDB_WRITABLE   (1<<2)
-#define GDB_EXCEPTION  (1<<3)
-

 /* Exported functions from event-loop.c */
 
 extern void start_event_loop (void);
 /* Exported functions from event-loop.c */
 
 extern void start_event_loop (void);

-extern int gdb_do_one_event (void *data);
+extern int gdb_do_one_event (void);

 extern void delete_file_handler (int fd);
 extern void delete_file_handler (int fd);

-extern void add_file_handler (int fd, handler_func * proc, gdb_client_data client_data);
+extern void add_file_handler (int fd, handler_func *proc, 
+                             gdb_client_data client_data);

 extern struct async_signal_handler *
 extern struct async_signal_handler *

-  create_async_signal_handler (sig_handler_func * proc, gdb_client_data client_data);
-extern void delete_async_signal_handler (struct async_signal_handler **async_handler_ptr);
-extern int create_timer (int milliseconds, timer_handler_func * proc, gdb_client_data client_data);
+  create_async_signal_handler (sig_handler_func *proc, 
+                              gdb_client_data client_data);
+extern void delete_async_signal_handler (struct async_signal_handler **);
+extern int create_timer (int milliseconds, 
+                        timer_handler_func *proc, 
+                        gdb_client_data client_data);

 extern void delete_timer (int id);
 
 /* Call the handler from HANDLER immediately.  This function
 extern void delete_timer (int id);
 
 /* Call the handler from HANDLER immediately.  This function