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109 lines
4.0 KiB
C
109 lines
4.0 KiB
C
/*
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* This file is part of the weatherdaemon project.
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* Copyright 2025 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <pthread.h>
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#include <signal.h> // pthread_kill
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#include <stdint.h>
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#include <time.h>
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#include <usefull_macros.h>
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// length (in symbols) of key, value and comment
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#define KEY_LEN (8)
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#define VAL_LEN (31)
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#define COMMENT_LEN (63)
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// maximal full length of "KEY=val / comment" (as for sfitsio)
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#define FULL_LEN (81)
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// name of meteo-plugin
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#define NAME_LEN (127)
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// importance of values
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typedef enum{
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VAL_OBLIGATORY, // can't be omitted
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VAL_RECOMMENDED, // recommended to show
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VAL_UNNECESSARY, // may be shown by user request
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VAL_BROKEN // sensor is broken, omit it
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} valsense_t;
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// meaning of values
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typedef enum{
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IS_WIND, // wind, m/s
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IS_WINDDIR, // wind direction, degr
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IS_HUMIDITY, // humidity, percent
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IS_AMB_TEMP, // ambient temperature, degC
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IS_INNER_TEMP, // in-dome temperature, degC
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IS_HW_TEMP, // hardware (?) termperature, degC
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IS_PRESSURE, // atmospheric pressure, mmHg
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IS_PRECIP, // precipitation (1 - yes, 0 - no)
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IS_PRECIP_LEVEL, // precipitation level (mm)
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IS_MIST, // mist (1 - yes, 0 - no)
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IS_CLOUDS, // integral clouds value (bigger - better)
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IS_SKYTEMP, // mean sky temperatyre
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IS_OTHER // something other - read "name" and "comment"
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} valmeaning_t;
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typedef union{
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uint32_t u;
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int32_t i;
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float f;
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} num_t;
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// type of value
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typedef enum{
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VALT_UINT,
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VALT_INT,
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VALT_FLOAT,
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//VALT_STRING,
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} valtype_t;
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// value
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typedef struct{
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char name[KEY_LEN+1]; // max VAL_LEN symbols FITS header keyword name
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char comment[COMMENT_LEN+1];// max COMMENT_LEN symbols of comment to FITS header
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valsense_t sense; // importance
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valtype_t type; // type of given value
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valmeaning_t meaning; // what type of sensor is it
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num_t value; // value itself
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time_t time; // last changing time
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} val_t;
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// all sensor's data
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// all functions have `this` as first arg
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typedef struct sensordata_t{
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char name[NAME_LEN+1]; // max 31 symbol of sensor's name (e.g. "rain sensor")
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int Nvalues; // amount of values
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int PluginNo; // plugin number in array (if several)
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int (*init)(struct sensordata_t*, int, time_t, int); // init meteostation with given PluginNo, poll_interval and fd; return amount of parameters found or -1 if error
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int (*onrefresh)(struct sensordata_t*, void (*handler)(struct sensordata_t*)); // handler of new data; return TRUE if OK
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int (*get_value)(struct sensordata_t*, val_t*, int); // getter of Nth value
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void (*kill)(struct sensordata_t*); // close everything and remove sensor
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// private members:
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val_t *values; // array of values
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pthread_t thread; // main thread
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void (*freshdatahandler)(struct sensordata_t*); // handler of fresh data
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int fdes; // file descriptor of device/socket
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sl_ringbuffer_t *ringbuffer; // ringbuffer for device reading
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time_t tpoll; // forced polling time for sensor
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} sensordata_t;
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// library functions and other
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int common_onrefresh(sensordata_t*, void (*handler)(sensordata_t*));
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void common_kill(sensordata_t *s);
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int sensor_alive(sensordata_t *s);
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