Mercurial > projects > pwm
view cmd.h @ 19:5c6155c8e9b6
Handle signals
Handled signals are generally blocked and only unblocked when doing blocking
I/O, i.e. either when reading commands or printing results. A (possibly
queued) signal will then interrupt I/O and can be dealt with in the main loop.
author | Guido Berhoerster <guido+pwm@berhoerster.name> |
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date | Fri, 01 Sep 2017 22:33:41 +0200 |
parents | a07665727c19 |
children |
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/* * Copyright (C) 2017 Guido Berhoerster <guido+pwm@berhoerster.name> * * 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 CMD_H #define CMD_H #include "pwm.h" enum cmd_return { CMD_OK, CMD_STATUS, CMD_ERR, CMD_USAGE, CMD_SIGNAL, CMD_QUIT }; struct cmd { const char *abbrev_cmd; const char *full_cmd; const char *usage; const char *description; enum cmd_return (*cmd_func)(struct pwm_ctx *, int argc, char *argv[]); }; struct cmd * cmd_match(const char *); #endif /* CMD_H */