42a6c76e28
Idle events are dispatched everytime kmscon_eloop_dispatch() is called. To allow the callbacks to add/remove/modify all current idle events (including themself), we need to keep a pointer to the currently dispatched event. Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
101 lines
3.6 KiB
C
101 lines
3.6 KiB
C
/*
|
|
* kmscon - Event Loop
|
|
*
|
|
* Copyright (c) 2011 David Herrmann <dh.herrmann@googlemail.com>
|
|
* Copyright (c) 2011 University of Tuebingen
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files
|
|
* (the "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included
|
|
* in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
|
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
/*
|
|
* Event Loop
|
|
* This provides a basic event loop similar to those provided by glib etc.
|
|
* It uses linux specific features like signalfd so it may not be easy to port
|
|
* it to other platforms.
|
|
*/
|
|
|
|
#ifndef KMSCON_ELOOP_H
|
|
#define KMSCON_ELOOP_H
|
|
|
|
#include <stdlib.h>
|
|
|
|
struct kmscon_eloop;
|
|
struct kmscon_idle;
|
|
struct kmscon_fd;
|
|
struct kmscon_signal;
|
|
|
|
typedef void (*kmscon_idle_cb) (struct kmscon_idle *idle, void *data);
|
|
typedef void (*kmscon_fd_cb) (struct kmscon_fd *fd, void *data);
|
|
typedef void (*kmscon_signal_cb)
|
|
(struct kmscon_signal *sig, int signum, void *data);
|
|
|
|
enum kmscon_eloop_flags {
|
|
KMSCON_READABLE = 0x01,
|
|
KMSCON_WRITEABLE = 0x02,
|
|
KMSCON_HUP = 0x04,
|
|
};
|
|
|
|
int kmscon_eloop_new(struct kmscon_eloop **out);
|
|
void kmscon_eloop_ref(struct kmscon_eloop *loop);
|
|
void kmscon_eloop_unref(struct kmscon_eloop *loop);
|
|
|
|
int kmscon_eloop_get_fd(struct kmscon_eloop *loop);
|
|
int kmscon_eloop_dispatch(struct kmscon_eloop *loop, int timeout);
|
|
|
|
/* idle sources */
|
|
|
|
int kmscon_idle_new(struct kmscon_idle **out);
|
|
void kmscon_idle_ref(struct kmscon_idle *idle);
|
|
void kmscon_idle_unref(struct kmscon_idle *idle);
|
|
|
|
int kmscon_eloop_new_idle(struct kmscon_eloop *loop, struct kmscon_idle **out,
|
|
kmscon_idle_cb cb, void *data);
|
|
int kmscon_eloop_add_idle(struct kmscon_eloop *loop, struct kmscon_idle *idle,
|
|
kmscon_idle_cb cb, void *data);
|
|
void kmsocn_eloop_rm_idle(struct kmscon_idle *idle);
|
|
|
|
/* fd sources */
|
|
|
|
int kmscon_fd_new(struct kmscon_fd **out);
|
|
void kmscon_fd_ref(struct kmscon_fd *fd);
|
|
void kmscon_fd_unref(struct kmscon_fd *fd);
|
|
|
|
int kmscon_eloop_new_fd(struct kmscon_eloop *loop, struct kmscon_fd **out,
|
|
int rfd, int mask, kmscon_fd_cb cb, void *data);
|
|
int kmscon_eloop_add_fd(struct kmscon_eloop *loop, struct kmscon_fd *fd,
|
|
int rfd, int mask, kmscon_fd_cb cb, void *data);
|
|
void kmscon_eloop_rm_fd(struct kmscon_fd *fd);
|
|
int kmscon_eloop_update_fd(struct kmscon_fd *fd, int mask);
|
|
|
|
/* signal sources */
|
|
|
|
int kmscon_signal_new(struct kmscon_signal **out);
|
|
void kmscon_signal_ref(struct kmscon_signal *sig);
|
|
void kmscon_signal_unref(struct kmscon_signal *sig);
|
|
|
|
int kmscon_eloop_new_signal(struct kmscon_eloop *loop,
|
|
struct kmscon_signal **out, int signum, kmscon_signal_cb cb,
|
|
void *data);
|
|
int kmscon_eloop_add_signal(struct kmscon_eloop *loop,
|
|
struct kmscon_signal *sig, int signum, kmscon_signal_cb cb, void *data);
|
|
void kmscon_eloop_rm_signal(struct kmscon_signal *sig);
|
|
|
|
#endif /* KMSCON_ELOOP_H */
|