mirror of
https://github.com/troglobit/libuev.git
synced 2026-10-13 10:04:41 +00:00
Joachim Nilsson
9b5be13e62
Split libuev.c into one file per watcher type, mostly to give a better
overview and ease of maintenance, but also to help the linker.
Unfortunately this steals a few bytes when linking a full blown app, but
for apps that, e.g., only need I/O watchers and no timers the resulting
binary will be smaller. This applies to static binaries that are more
common in embedded systems.
$ size libuev.a libuev.so.1
text data bss dec hex filename
999 0 0 999 3e7 main.o (ex libuev.a)
90 0 0 90 5a io.o (ex libuev.a)
490 0 0 490 1ea timer.o (ex libuev.a)
4380 696 8 5084 13dc libuev.so.1
Also, move uev.h back to top from include/libuev/uev.h since a separate
namespace is not needed after the removal of the OpenBSD queue.h copy.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
105 lines
3.3 KiB
C
105 lines
3.3 KiB
C
/* libuev - Micro event loop library
|
|
*
|
|
* Copyright (c) 2012 Flemming Madsen <flemming!madsen()madsensoft!dk>
|
|
* Copyright (c) 2013 Joachim Nilsson <troglobit()gmail!com>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef LIBUEV_UEV_H_
|
|
#define LIBUEV_UEV_H_
|
|
|
|
#include <sys/queue.h>
|
|
|
|
/* Max. number of simulateneous events */
|
|
#define UEV_MAX_EVENTS 10
|
|
|
|
/* Forward declare due to dependencys, don't try this at home. */
|
|
struct uev;
|
|
|
|
/* I/O direction */
|
|
typedef enum {
|
|
UEV_DIR_INBOUND = 0,
|
|
UEV_DIR_OUTBOUND = 1
|
|
} uev_dir_t;
|
|
|
|
/* File, Timer, ... */
|
|
typedef enum {
|
|
UEV_FILE_TYPE = 1,
|
|
UEV_TIMER_TYPE,
|
|
} uev_type_t;
|
|
|
|
/* I/O event watcher */
|
|
typedef struct uev_io {
|
|
LIST_ENTRY(uev_io) link;
|
|
|
|
uev_type_t type;
|
|
|
|
int fd; ///< File descriptor
|
|
uev_dir_t dir; ///< Direction: in or out
|
|
|
|
int timeout; ///< Timeout in milliseconds
|
|
int period; ///< Period time, in milliseconds
|
|
|
|
void (*handler)(struct uev *, struct uev_io *, void *);
|
|
void *data;
|
|
} uev_io_t;
|
|
|
|
/* Main libuev context type */
|
|
typedef struct {
|
|
int running;
|
|
|
|
int efd; /* For epoll() */
|
|
struct epoll_event *events;
|
|
|
|
LIST_HEAD(, uev_io) watchers;
|
|
} uev_t;
|
|
|
|
/* Generic callback for watchers */
|
|
typedef void (uev_cb_t) (uev_t *ctx, uev_io_t *w, void *data);
|
|
|
|
/* Private methods, do not use directly! */
|
|
uev_io_t *uev_watcher_create(uev_t *ctx, uev_type_t type, int fd, uev_dir_t dir, uev_cb_t *handler, void *data);
|
|
int uev_watcher_delete(uev_t *ctx, uev_io_t *w);
|
|
|
|
/* Public interface */
|
|
uev_io_t *uev_io_create (uev_t *ctx, uev_cb_t *cb, void *data, int fd, uev_dir_t dir);
|
|
int uev_io_delete (uev_t *ctx, uev_io_t *w);
|
|
|
|
int uev_timer_set (uev_t *ctx, uev_io_t *w, int timeout, int period);
|
|
uev_io_t *uev_timer_create (uev_t *ctx, uev_cb_t *cb, void *data, int timeout, int period);
|
|
int uev_timer_delete (uev_t *ctx, uev_io_t *w);
|
|
|
|
uev_t *uev_ctx_create (void);
|
|
void uev_ctx_delete (uev_t *uev);
|
|
|
|
int uev_run (uev_t *ctx);
|
|
void uev_exit (uev_t *ctx);
|
|
|
|
#endif /* LIBUEV_UEV_H_ */
|
|
|
|
/**
|
|
* Local Variables:
|
|
* version-control: t
|
|
* indent-tabs-mode: t
|
|
* c-file-style: "linux"
|
|
* End:
|
|
*/
|