forked from Archive/PX4-Autopilot
121 lines
4.0 KiB
C
121 lines
4.0 KiB
C
/****************************************************************************
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*
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* Copyright (C) 2012 PX4 Development Team. All rights reserved.
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* Author: Lorenz Meier <lm@inf.ethz.ch>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name PX4 nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/**
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* @file mavlink_log.h
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* MAVLink text logging.
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*
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* @author Lorenz Meier <lm@inf.ethz.ch>
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*/
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#ifndef MAVLINK_LOG
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#define MAVLINK_LOG
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/*
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* IOCTL interface for sending log messages.
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*/
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#include <sys/ioctl.h>
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/*
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* The mavlink log device node; must be opened before messages
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* can be logged.
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*/
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#define MAVLINK_LOG_DEVICE "/dev/mavlink"
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#define MAVLINK_IOC_SEND_TEXT_INFO _IOC(0x1100, 1)
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#define MAVLINK_IOC_SEND_TEXT_CRITICAL _IOC(0x1100, 2)
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#define MAVLINK_IOC_SEND_TEXT_EMERGENCY _IOC(0x1100, 3)
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/**
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* Send a mavlink emergency message.
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*
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* @param _fd A file descriptor returned from open(MAVLINK_LOG_DEVICE, 0);
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* @param _text The text to log;
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*/
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#ifdef __cplusplus
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#define mavlink_log_emergency(_fd, _text) ::ioctl(_fd, MAVLINK_IOC_SEND_TEXT_EMERGENCY, (unsigned long)_text);
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#else
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#define mavlink_log_emergency(_fd, _text) ioctl(_fd, MAVLINK_IOC_SEND_TEXT_EMERGENCY, (unsigned long)_text);
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#endif
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/**
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* Send a mavlink critical message.
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*
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* @param _fd A file descriptor returned from open(MAVLINK_LOG_DEVICE, 0);
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* @param _text The text to log;
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*/
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#ifdef __cplusplus
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#define mavlink_log_critical(_fd, _text) ::ioctl(_fd, MAVLINK_IOC_SEND_TEXT_CRITICAL, (unsigned long)_text);
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#else
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#define mavlink_log_critical(_fd, _text) ioctl(_fd, MAVLINK_IOC_SEND_TEXT_CRITICAL, (unsigned long)_text);
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#endif
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/**
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* Send a mavlink info message.
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*
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* @param _fd A file descriptor returned from open(MAVLINK_LOG_DEVICE, 0);
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* @param _text The text to log;
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*/
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#ifdef __cplusplus
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#define mavlink_log_info(_fd, _text) ::ioctl(_fd, MAVLINK_IOC_SEND_TEXT_INFO, (unsigned long)_text);
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#else
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#define mavlink_log_info(_fd, _text) ioctl(_fd, MAVLINK_IOC_SEND_TEXT_INFO, (unsigned long)_text);
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#endif
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struct mavlink_logmessage {
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char text[51];
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unsigned char severity;
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};
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struct mavlink_logbuffer {
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unsigned int start;
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// unsigned int end;
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unsigned int size;
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int count;
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struct mavlink_logmessage *elems;
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};
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void mavlink_logbuffer_init(struct mavlink_logbuffer *lb, int size);
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int mavlink_logbuffer_is_full(struct mavlink_logbuffer *lb);
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int mavlink_logbuffer_is_empty(struct mavlink_logbuffer *lb);
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void mavlink_logbuffer_write(struct mavlink_logbuffer *lb, const struct mavlink_logmessage *elem);
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int mavlink_logbuffer_read(struct mavlink_logbuffer *lb, struct mavlink_logmessage *elem);
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#endif
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