libei/src/util-logger.h
Peter Hutterer f7a24b2fbd Add the minimal implementation for a UNIX socket libeis server
This is the minimum framework to support new clients, added devices and
pointer relative motion events. It's missing a bunch of checks and
verification, most of the server hooks aren't there yet, the only
implementation is a UNIX socket and the protocol is plain text (but at least
the last two makes it netcat-compatible).

Protocol is plain text for now and interaction is like this (S is server, C is client):
S: hello
C: connect myclientname
S: connected
C: add 2 4
S: accept 2
C: rel 2 -1 1
C: rel 2 5 4

Where the last two lines are: add device with id 2 and capability mask 0x4,
send a relative pointer motion event for device 2 with coordinates -1/1, then
5/4.

The implementation relies heavily on some abstraction and macros galore, see
the various util-* files. These are largely copied from libinput, with a few
parts removed and a few other parts added.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2020-07-28 19:33:34 +10:00

87 lines
2.5 KiB
C

/*
* Copyright © 2020 Red Hat, Inc.
*
* 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 (including the next
* paragraph) 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.
*/
#pragma once
#include "config.h"
#include <stdarg.h>
#include "util-macros.h"
struct logger;
enum logger_priority {
LOGGER_DEBUG = 20,
LOGGER_INFO = 30,
LOGGER_WARN = 40,
LOGGER_ERROR = 50,
};
typedef void (*logger_log_func_t)(struct logger *libinput,
enum logger_priority priority,
const char *format, va_list args);
void
log_msg(struct logger *logger,
enum logger_priority priority,
const char *format, ...);
void
log_msg_va(struct logger *logger,
enum logger_priority priority,
const char *format,
va_list args);
/* log helpers. The struct T_ needs to have a field called 'logger' */
#define log_debug(T_, ...) \
log_msg((T_)->logger, LOGGER_DEBUG, __VA_ARGS__)
#define log_info(T_, ...) \
log_msg((T_)->logger, LOGGER_INFO, __VA_ARGS__)
#define log_warn(T_, ...) \
log_msg((T_)->logger, LOGGER_WARN, __VA_ARGS__)
#define log_error(T_, ...) \
log_msg((T_)->logger, LOGGER_ERROR, __VA_ARGS__)
struct logger *
logger_new(void *user_data);
struct logger *
logger_unref(struct logger *logger);
void *
logger_get_user_data(struct logger *logger);
void
logger_set_user_data(struct logger *logger,
void *user_data);
enum logger_priority
logger_get_priority(struct logger *logger);
void
logger_set_priority(struct logger *logger,
enum logger_priority priority);
void
logger_set_handler(struct logger *logger,
logger_log_func_t handler);