Change backtrace_command_1 calling to use flags

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

diff --git a/gdb/event-loop.h b/gdb/event-loop.h
index e519852e03085570fe710b5efc2fbf7243fddb0e..fee9daab6eefbce47d398e0ff890279699546ec0 100644 (file)
--- a/gdb/event-loop.h
+++ b/gdb/event-loop.h
@@ -1,6 +1,5 @@
 /* Definitions used by the GDB event loop.
-   Copyright (C) 1999, 2000, 2007, 2008, 2009, 2010, 2011
-   Free Software Foundation, Inc.
+   Copyright (C) 1999-2018 Free Software Foundation, Inc.
    Written by Elena Zannoni <ezannoni@cygnus.com> of Cygnus Solutions.
 
    This file is part of GDB.
@@ -76,18 +75,6 @@ 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);
 
-/* Where to add an event onto the event queue, by queue_event.  */
-typedef enum
-  {
-    /* Add at tail of queue.  It will be processed in first in first
-       out order.  */
-    TAIL,
-    /* Add at head of queue.  It will be processed in last in first
-       out order.  */
-    HEAD
-  }
-queue_position;
-
 /* Exported functions from event-loop.c */
 
 extern void start_event_loop (void);
@@ -104,27 +91,18 @@ extern int create_timer (int milliseconds,
                         gdb_client_data client_data);
 extern void delete_timer (int id);
 
-/* Call the handler from HANDLER immediately.  This function
-   runs signal handlers when returning to the event loop would be too
-   slow.  Do not call this directly; use gdb_call_async_signal_handler,
-   below, with IMMEDIATE_P == 1.  */
-void call_async_signal_handler (struct async_signal_handler *handler);
+/* Call the handler from HANDLER the next time through the event
+   loop.  */
+extern void mark_async_signal_handler (struct async_signal_handler *handler);
+
+/* Returns true if HANDLER is marked ready.  */
 
-/* Call the handler from HANDLER the next time through the event loop.
-   Do not call this directly; use gdb_call_async_signal_handler,
-   below, with IMMEDIATE_P == 0.  */
-void mark_async_signal_handler (struct async_signal_handler *handler);
+extern int
+  async_signal_handler_is_marked (struct async_signal_handler *handler);
 
-/* Wrapper for the body of signal handlers.  Call this function from
-   any SIGINT handler which needs to access GDB data structures or
-   escape via longjmp.  If IMMEDIATE_P is set, this triggers either
-   immediately (for POSIX platforms), or from gdb_select (for
-   MinGW).  If IMMEDIATE_P is clear, the handler will run the next
-   time we return to the event loop and any current select calls
-   will be interrupted.  */
+/* Mark HANDLER as NOT ready.  */
 
-void gdb_call_async_signal_handler (struct async_signal_handler *handler,
-                                   int immediate_p);
+extern void clear_async_signal_handler (struct async_signal_handler *handler);
 
 /* Create and register an asynchronous event source in the event loop,
    and set PROC as its callback.  CLIENT_DATA is passed as argument to
@@ -143,3 +121,9 @@ extern void
 /* Call the handler from HANDLER the next time through the event
    loop.  */
 extern void mark_async_event_handler (struct async_event_handler *handler);
+
+/* Mark the handler (ASYNC_HANDLER_PTR) as NOT ready.  */
+
+extern void clear_async_event_handler (struct async_event_handler *handler);
+
+extern void initialize_async_signal_handlers (void);