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https://gitee.com/mirrors_PX4/PX4-Autopilot.git
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a475d71ca9
- Astyle chokes on the module description strings, so for now we can keep them near the bottom of each file.
96 lines
2.8 KiB
C++
96 lines
2.8 KiB
C++
/****************************************************************************
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*
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* Copyright (c) 2019 PX4 Development Team. All rights reserved.
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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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#include <px4_platform_common/px4_config.h>
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#include <px4_platform_common/console_buffer.h>
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#include <px4_platform_common/module.h>
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#include <px4_platform_common/getopt.h>
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#ifndef BOARD_ENABLE_CONSOLE_BUFFER
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#error "This module can only be used on boards that enable BOARD_ENABLE_CONSOLE_BUFFER"
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#endif
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static void usage();
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extern "C" {
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__EXPORT int dmesg_main(int argc, char *argv[]);
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}
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int
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dmesg_main(int argc, char *argv[])
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{
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int myoptind = 1;
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int ch;
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const char *myoptarg = nullptr;
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bool follow = false;
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while ((ch = px4_getopt(argc, argv, "f", &myoptind, &myoptarg)) != EOF) {
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switch (ch) {
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case 'f':
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follow = true;
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break;
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default:
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usage();
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return -1;
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break;
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}
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}
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px4_console_buffer_print(follow);
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return 0;
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}
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static void
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usage()
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{
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PRINT_MODULE_DESCRIPTION(
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R"DESCR_STR(
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### Description
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Command-line tool to show bootup console messages.
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Note that output from NuttX's work queues and syslog are not captured.
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### Examples
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Keep printing all messages in the background:
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$ dmesg -f &
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)DESCR_STR");
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PRINT_MODULE_USAGE_NAME("dmesg", "system");
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PRINT_MODULE_USAGE_PARAM_FLAG('f', "Follow: wait for new messages", true);
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}
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