binutils-gdb/gdb/ser-event.h
Andrew Burgess 1d506c26d9 Update copyright year range in header of all files managed by GDB
This commit is the result of the following actions:

  - Running gdb/copyright.py to update all of the copyright headers to
    include 2024,

  - Manually updating a few files the copyright.py script told me to
    update, these files had copyright headers embedded within the
    file,

  - Regenerating gdbsupport/Makefile.in to refresh it's copyright
    date,

  - Using grep to find other files that still mentioned 2023.  If
    these files were updated last year from 2022 to 2023 then I've
    updated them this year to 2024.

I'm sure I've probably missed some dates.  Feel free to fix them up as
you spot them.
2024-01-12 15:49:57 +00:00

52 lines
2.0 KiB
C

/* Serial interface for a selectable event.
Copyright (C) 2016-2024 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef SER_EVENT_H
#define SER_EVENT_H
/* This is used to be able to signal the event loop (or any other
select/poll) of events, in a race-free manner.
For example, a signal handler can defer non-async-signal-safe work
to the event loop, by having the signal handler set a struct
serial_event object, and having the event loop wait for that same
object to the readable. Once readable, the event loop breaks out
of select/poll and calls a registered callback that does the
deferred work. */
struct serial_event;
/* Make a new serial_event object. */
struct serial_event *make_serial_event (void);
/* Return the FD that can be used by select/poll to wait for the
event. The only valid operation on this object is to wait until it
is readable. */
extern int serial_event_fd (struct serial_event *event);
/* Set the event. This signals the file descriptor returned by
serial_event_fd as readable. */
extern void serial_event_set (struct serial_event *event);
/* Clear the event. The file descriptor returned by serial_event_fd
is not longer readable after this, until a new serial_event_set
call is made. */
extern void serial_event_clear (struct serial_event *event);
#endif