add: config loading

CMakeLists.txt

@@ -21,6 +21,8 @@ aux_source_directory(helpers HELPERS_SRC)
 aux_source_directory(handlers HANDLERS_SRC)
 aux_source_directory(drivers DRIVERS_SRC)
 
+configure_file("controller.ini" "controller.ini" COPYONLY)
+
 target_sources(controller PRIVATE ${SRC_DIR} ${MODELS_SRC} ${HELPERS_SRC} ${HANDLERS_SRC} ${DRIVERS_SRC})
 target_include_directories(controller PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/include)
 

controller.ini

@@ -0,0 +1,44 @@
+[controller]
+name = new emgauwa device
+discovery-port = 4421
+relay-count = 10
+
+[relay-0]
+driver = piface
+pin = 0
+
+[relay-1]
+driver = piface
+pin = 1
+
+[relay-2]
+driver = gpio
+pin = 11
+
+[relay-3]
+driver = gpio
+pin = 13
+
+[relay-4]
+driver = gpio
+pin = 15
+
+[relay-5]
+driver = gpio
+pin = 8
+
+[relay-6]
+driver = gpio
+pin = 10
+
+[relay-7]
+driver = gpio
+pin = 12
+
+[relay-8]
+driver = gpio
+pin = 16
+
+[relay-9]
+driver = gpio
+pin = 18

database.c

@@ -3,7 +3,7 @@
 #include <stdio.h>
 #include <lmdb.h>
 
-#include <config.h>
+#include <constants.h>
 
 void
 database_setup(MDB_env **mdb_env)

drivers/gpio.c

@@ -5,10 +5,10 @@
 #include <drivers.h>
 
 void
-driver_gpio_set(relay_t *relay, int value)
+driver_gpio_set(int pin, int value)
 {
     // disable "unused parameter" warning (happens when using wiring_debug)
-    (void)relay;
+    (void)pin;
     (void)value;
-    digitalWrite(relay->number, value);
+    digitalWrite(pin, value);
 }

drivers/piface.c

@@ -5,10 +5,10 @@
 #include <drivers.h>
 
 void
-driver_piface_set(relay_t *relay, int value)
+driver_piface_set(int pin, int value)
 {
     // disable "unused parameter" warning (happens when using wiring_debug)
-    (void)relay;
+    (void)pin;
     (void)value;
-    digitalWrite(DRIVER_PIFACE_GPIO_BASE + relay->number, value);
+    digitalWrite(DRIVER_PIFACE_GPIO_BASE + pin, value);
 }

handlers/loop.c

@@ -19,28 +19,22 @@ handler_loop(controller_t *controller)
     for(uint_fast8_t i = 0; i < controller->relay_count; ++i)
     {
         relay_t *relay = controller->relays[i];
+        int is_active = 0;
         if(relay_is_active(relay, time(NULL)))
         {
             LOG_DEBUG("relay %d is active", i);
-            if(relay->number >= 2)
+            is_active = 1;
+        }
+        switch(global_config.relay_configs[i].driver)
         {
-                driver_gpio_set(relay, HIGH);
+            case RELAY_DRIVER_GPIO:
-            }
+                driver_gpio_set(global_config.relay_configs[i].pin, is_active);
-            else
+                break;
-            {
+            case RELAY_DRIVER_PIFACE:
-                driver_piface_set(relay, HIGH);
+                driver_piface_set(global_config.relay_configs[i].pin, is_active);
-            }
+                break;
-        }
+            default:
-        else
+                LOG_WARN("relay %d is not using a driver", i);
-        {
-            if(relay->number >= 2)
-            {
-                driver_gpio_set(relay, LOW);
-            }
-            else
-            {
-                driver_piface_set(relay, LOW);
-            }
         }
     }
 }

helpers/load_config.c

@@ -0,0 +1,69 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include <helpers.h>
+#include <config.h>
+#include <logger.h>
+#include <confini.h>
+
+#define CONFINI_IS_KEY(SECTION, KEY) \
+    (ini_array_match(SECTION, disp->append_to, '.', disp->format) && \
+     ini_string_match_ii(KEY, disp->data, disp->format))
+
+int
+helper_load_config(IniDispatch *disp, void *config_void)
+{
+    config_t *config = (config_t*)config_void;
+    char relay_section_name[10]; // "relay-255\0" is longest name 
+
+    if(disp->type == INI_KEY)
+    {
+        if(CONFINI_IS_KEY("controller", "name"))
+        {
+            strncpy(config->name, disp->value, MAX_NAME_LENGTH);
+            config->name[MAX_NAME_LENGTH] = '\0';
+            return 0;
+        }
+        if(CONFINI_IS_KEY("controller", "discovery-port"))
+        {
+            config->discovery_port = atoi(disp->value);
+            return 0;
+        }
+        if(CONFINI_IS_KEY("controller", "relay-count"))
+        {
+            config->relay_count = atoi(disp->value);
+            config->relay_configs = malloc(sizeof(config_relay_t) * config->relay_count);
+            for(uint8_t i = 0; i < config->relay_count; ++i)
+            {
+                config->relay_configs[i].driver= RELAY_DRIVER_NONE;
+            }
+            LOG_TRACE("config relay-count set to %u", config->relay_count);
+            return 0;
+        }
+        for(uint8_t i = 0; i < config->relay_count; ++i)
+        {
+            sprintf(relay_section_name, "relay-%u", i);
+            if(CONFINI_IS_KEY(relay_section_name, "pin"))
+            {
+                config->relay_configs[i].pin = atoi(disp->value);
+                return 0;
+            }
+            if(CONFINI_IS_KEY(relay_section_name, "driver"))
+            {
+                if(strcasecmp(disp->value, "gpio") == 0)
+                {
+                    config->relay_configs[i].driver = RELAY_DRIVER_GPIO;
+                    return 0;
+                }
+                if(strcasecmp(disp->value, "piface") == 0)
+                {
+                    config->relay_configs[i].driver = RELAY_DRIVER_PIFACE;
+                    return 0;
+                }
+                LOG_WARN("invalid driver '%s' in section '%s'", disp->value, relay_section_name);
+                return 0;
+            }
+        }
+    }
+    return 0;
+}

include/config.h

@@ -1,32 +1,25 @@
 #ifndef CONTROLLER_CONFIG_H
 #define CONTROLLER_CONFIG_H
 
-#include <log_levels.h>
+#include <stdint.h>
 
-/**
+#include <constants.h>
- * @brief Limit the maximum length of a controller/relay/etc name
+#include <enums.h>
- *
- * The NULL terminator is not included. Arrays of length #MAX_NAME_LENGTH + 1 are required.
- */
-#define MAX_NAME_LENGTH 128
 
-/**
+typedef struct
- * @brief Maximum number of dbs for the databases for the MDB_env
+{
- *
+    uint8_t pin;
- * Used when calling mdb_env_set_maxdbs() in database_setup()
+    relay_driver_t driver;
- */
+} config_relay_t;
-#define MDB_MAXDBS 8
 
-/**
+typedef struct
- * @brief Indicates to which level to log
+{
- *
+    char name[MAX_NAME_LENGTH + 1];
- * @see include/log_levels.h
+    uint16_t discovery_port;
- */
+    uint8_t relay_count;
-#define LOG_LEVEL LOG_LEVEL_DEBUG
+    config_relay_t *relay_configs;
+} config_t;
 
-/**
+extern config_t global_config;
- * @brief How many milli seconds to wait until poll timeout in main loop
- */
-#define ACCEPT_TIMEOUT_MSECONDS 1000
 
 #endif //CONTROLLER_CONFIG_H

include/confini.h

@@ -0,0 +1,547 @@
+/*  -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 4; tab-width: 4 -*-  */
+
+/**
+
+    @file       confini.h
+    @brief      libconfini header
+    @author     Stefano Gioffré
+    @copyright  GNU General Public License, version 3 or any later version
+    @version    1.14.0
+    @date       2016-2020
+    @see        https://madmurphy.github.io/libconfini
+
+**/
+
+
+#ifndef _LIBCONFINI_HEADER_
+#define _LIBCONFINI_HEADER_
+
+
+
+#include <stdio.h>
+#include <stdbool.h>
+#include <stdint.h>
+
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+
+/*  PRIVATE (HEADER-SCOPED) MACROS  */
+
+
+#define __INIFORMAT_TABLE_CB_FIELDS__(NAME, OFFSET, SIZE, DEFVAL) \
+    unsigned char NAME:SIZE;
+#define __INIFORMAT_TABLE_CB_DEFAULT__(NAME, OFFSET, SIZE, DEFVAL) DEFVAL,
+#define __INIFORMAT_TABLE_CB_ZERO__(NAME, OFFSET, SIZE, DEFVAL) 0,
+#define _LIBCONFINI_INIFORMAT_TYPE_ \
+    struct IniFormat { INIFORMAT_TABLE_AS(__INIFORMAT_TABLE_CB_FIELDS__) }
+#define _LIBCONFINI_DEFAULT_FORMAT_ \
+    { INIFORMAT_TABLE_AS(__INIFORMAT_TABLE_CB_DEFAULT__) }
+#define _LIBCONFINI_UNIXLIKE_FORMAT_ \
+    { INIFORMAT_TABLE_AS(__INIFORMAT_TABLE_CB_ZERO__) }
+
+
+
+/*  PUBLIC MACROS  */
+
+
+/**
+    @brief  Calls a user-given macro (that accepts four arguments) for each row
+            of the table
+**/
+/*
+    NOTE: The following table and the order of its rows **define** (and link
+    together) both the #IniFormat and #IniFormatNum data types declared in this
+    header
+*/
+#define INIFORMAT_TABLE_AS(_____)                 /*  IniFormat table  *\
+
+        NAME                      BIT  SIZE DEFAULT
+                                                                      */\
+ _____( delimiter_symbol,         0,   7,   INI_EQUALS                ) \
+ _____( case_sensitive,           7,   1,   false                     )/*
+                                                                      */\
+ _____( semicolon_marker,         8,   2,   INI_DISABLED_OR_COMMENT   ) \
+ _____( hash_marker,              10,  2,   INI_DISABLED_OR_COMMENT   ) \
+ _____( section_paths,            12,  2,   INI_ABSOLUTE_AND_RELATIVE ) \
+ _____( multiline_nodes,          14,  2,   INI_MULTILINE_EVERYWHERE  )/*
+                                                                      */\
+ _____( no_single_quotes,         16,  1,   false                     ) \
+ _____( no_double_quotes,         17,  1,   false                     ) \
+ _____( no_spaces_in_names,       18,  1,   false                     ) \
+ _____( implicit_is_not_empty,    19,  1,   false                     ) \
+ _____( do_not_collapse_values,   20,  1,   false                     ) \
+ _____( preserve_empty_quotes,    21,  1,   false                     ) \
+ _____( disabled_after_space,     22,  1,   false                     ) \
+ _____( disabled_can_be_implicit, 23,  1,   false                     )
+
+
+
+/**
+    @brief  Checks whether a format does **not** support escape sequences
+**/
+#define INIFORMAT_HAS_NO_ESC(FORMAT) \
+    (FORMAT.multiline_nodes == INI_NO_MULTILINE && \
+    FORMAT.no_double_quotes && FORMAT.no_single_quotes)
+
+
+
+/*  PUBLIC TYPEDEFS  */
+
+
+/**
+    @brief  24-bit bitfield representing the format of an INI file (INI
+            dialect)
+**/
+typedef _LIBCONFINI_INIFORMAT_TYPE_ IniFormat;
+
+
+/**
+    @brief  Global statistics about an INI file
+**/
+typedef struct IniStatistics {
+    const IniFormat format;
+    const size_t bytes;
+    const size_t members;
+} IniStatistics;
+
+
+/**
+    @brief  Dispatch of a single INI node
+**/
+typedef struct IniDispatch {
+    const IniFormat format;
+    uint8_t type;
+    char * data;
+    char * value;
+    const char * append_to;
+    size_t d_len;
+    size_t v_len;
+    size_t at_len;
+    size_t dispatch_id;
+} IniDispatch;
+
+
+/**
+    @brief  The unique ID of an INI format (24-bit maximum)
+**/
+typedef uint32_t IniFormatNum;
+
+
+/**
+    @brief  Callback function for handling an #IniStatistics structure
+**/
+typedef int (* IniStatsHandler) (
+    IniStatistics * statistics,
+    void * user_data
+);
+
+
+/**
+    @brief  Callback function for handling an #IniDispatch structure
+**/
+typedef int (* IniDispHandler) (
+    IniDispatch * dispatch,
+    void * user_data
+);
+
+
+/**
+    @brief  Callback function for handling an INI string belonging to a
+            sequence of INI strings
+**/
+typedef int (* IniStrHandler) (
+    char * ini_string,
+    size_t string_length,
+    size_t string_num,
+    IniFormat format,
+    void * user_data
+);
+
+
+/**
+    @brief  Callback function for handling a selected fragment of an INI string
+**/
+typedef int (* IniSubstrHandler) (
+    const char * ini_string,
+    size_t fragm_offset,
+    size_t fragm_length,
+    size_t fragm_num,
+    IniFormat format,
+    void * user_data
+);
+
+
+
+/*  PUBLIC FUNCTIONS  */
+
+
+extern int strip_ini_cache (
+    register char * const ini_source,
+    const size_t ini_length,
+    const IniFormat format,
+    const IniStatsHandler f_init,
+    const IniDispHandler f_foreach,
+    void * const user_data
+);
+
+
+extern int load_ini_file (
+    FILE * const ini_file,
+    const IniFormat format,
+    const IniStatsHandler f_init,
+    const IniDispHandler f_foreach,
+    void * const user_data
+);
+
+
+extern int load_ini_path (
+    const char * const path,
+    const IniFormat format,
+    const IniStatsHandler f_init,
+    const IniDispHandler f_foreach,
+    void * const user_data
+);
+
+
+extern bool ini_string_match_ss (
+    const char * const simple_string_a,
+    const char * const simple_string_b,
+    const IniFormat format
+);
+
+
+extern bool ini_string_match_si (
+    const char * const simple_string,
+    const char * const ini_string,
+    const IniFormat format
+);
+
+
+extern bool ini_string_match_ii (
+    const char * const ini_string_a,
+    const char * const ini_string_b,
+    const IniFormat format
+);
+
+
+extern bool ini_array_match (
+    const char * const ini_string_a,
+    const char * const ini_string_b,
+    const char delimiter,
+    const IniFormat format
+);
+
+
+extern size_t ini_unquote (
+    char * const ini_string,
+    const IniFormat format
+);
+
+
+extern size_t ini_string_parse (
+    char * const ini_string,
+    const IniFormat format
+);
+
+
+extern size_t ini_array_get_length (
+    const char * const ini_string,
+    const char delimiter,
+    const IniFormat format
+);
+
+
+extern int ini_array_foreach (
+    const char * const ini_string,
+    const char delimiter,
+    const IniFormat format,
+    const IniSubstrHandler f_foreach,
+    void * const user_data
+);
+
+
+extern size_t ini_array_shift (
+    const char ** const ini_strptr,
+    const char delimiter,
+    const IniFormat format
+);
+
+
+extern size_t ini_array_collapse (
+    char * const ini_string,
+    const char delimiter,
+    const IniFormat format
+);
+
+
+extern char * ini_array_break (
+    char * const ini_string,
+    const char delimiter,
+    const IniFormat format
+);
+
+
+extern char * ini_array_release (
+    char ** const ini_strptr,
+    const char delimiter,
+    const IniFormat format
+);
+
+
+extern int ini_array_split (
+    char * const ini_string,
+    const char delimiter,
+    const IniFormat format,
+    const IniStrHandler f_foreach,
+    void * const user_data
+);
+
+
+extern void ini_global_set_lowercase_mode (
+    const bool lowercase
+);
+
+
+extern void ini_global_set_implicit_value (
+    char * const implicit_value,
+    const size_t implicit_v_len
+);
+
+
+extern IniFormatNum ini_fton (
+    const IniFormat format
+);
+
+
+extern IniFormat ini_ntof (
+    const IniFormatNum format_id
+);
+
+
+extern int ini_get_bool (
+    const char * const ini_string,
+    const int when_fail
+);
+
+
+
+/*  PUBLIC LINKS  */
+
+
+extern int (* const ini_get_int) (
+    const char * ini_string
+);
+
+
+extern long int (* const ini_get_lint) (
+    const char * ini_string
+);
+
+
+extern long long int (* const ini_get_llint) (
+    const char * ini_string
+);
+
+
+extern double (* const ini_get_double) (
+    const char * ini_string
+);
+
+
+/**
+    @brief  Legacy support, soon to be replaced with a `float` data type --
+            please **do not use `ini_get_float()`!**
+**/
+#define ini_get_float \
+    _Pragma("GCC warning \"function `ini_get_float()` is deprecated for parsing a `double` data type; use `ini_get_double()` instead\"") \
+    ini_get_double
+
+
+
+/*  PUBLIC CONSTANTS AND VARIABLES  */
+
+
+/**
+    @brief  Error mask (flags not present in user-generated interruptions)
+**/
+#define CONFINI_ERROR 252
+
+
+/**
+    @brief  Error codes
+**/
+enum ConfiniInterruptNo {
+    CONFINI_SUCCESS = 0,    /**< There have been no interruptions, everything
+                                 went well [value=0] **/
+    CONFINI_IINTR = 1,      /**< Interrupted by the user during `f_init()`
+                                 [value=1] **/
+    CONFINI_FEINTR = 2,     /**< Interrupted by the user during `f_foreach()`
+                                 [value=2] **/
+    CONFINI_ENOENT = 4,     /**< File inaccessible [value=4] **/
+    CONFINI_ENOMEM = 5,     /**< Error allocating virtual memory [value=5] **/
+    CONFINI_EIO = 6,        /**< Error reading the file [value=6] **/
+    CONFINI_EOOR = 7,       /**< Out-of-range error: callbacks are more than
+                                 expected [value=7] **/
+    CONFINI_EBADF = 8,      /**< The stream specified is not a seekable stream
+                                 [value=8] **/
+    CONFINI_EFBIG = 9,      /**< File too large [value=9] **/
+    CONFINI_EROADDR = 10    /**< Address is read-only [value=10] **/
+};
+
+
+/**
+    @brief  INI node types
+**/
+enum IniNodeType {
+    INI_UNKNOWN = 0,            /**< This is a node impossible to categorize
+                                     [value=0] **/
+    INI_VALUE = 1,              /**< Not used by **libconfini** (values are
+                                     dispatched together with keys) -- but
+                                     available for user's implementations
+                                     [value=1] **/
+    INI_KEY = 2,                /**< This is a key [value=2] **/
+    INI_SECTION = 3,            /**< This is a section or a section path
+                                     [value=3] **/
+    INI_COMMENT = 4,            /**< This is a comment [value=4] **/
+    INI_INLINE_COMMENT = 5,     /**< This is an inline comment [value=5] **/
+    INI_DISABLED_KEY = 6,       /**< This is a disabled key [value=6] **/
+    INI_DISABLED_SECTION = 7    /**< This is a disabled section path
+                                     [value=7] **/
+};
+
+
+/**
+    @brief  Common array and key-value delimiters (but a delimiter may also be
+            any other ASCII character not present in this list)
+**/
+enum IniDelimiters {
+    INI_ANY_SPACE = 0,  /**< In multi-line INIs:
+                             `/(?:\\(?:\n\r?|\r\n?)|[\t \v\f])+/`, in
+                             non-multi-line INIs: `/[\t \v\f])+/` **/
+    INI_EQUALS = '=',   /**< Equals character (`=`) **/
+    INI_COLON = ':',    /**< Colon character (`:`) **/
+    INI_DOT = '.',      /**< Dot character (`.`) **/
+    INI_COMMA = ','     /**< Comma character (`,`) **/
+};
+
+
+/**
+    @brief  Possible values of #IniFormat::semicolon_marker and
+            #IniFormat::hash_marker (i.e., meaning of `/\s+;/` and `/\s+#/` in
+            respect to a format)
+**/
+enum IniCommentMarker {
+    INI_DISABLED_OR_COMMENT = 0,    /**< This marker opens a comment or a
+                                         disabled entry **/
+    INI_ONLY_COMMENT = 1,           /**< This marker opens a comment **/
+    INI_IGNORE = 2,                 /**< This marker opens a comment that has
+                                         been marked for deletion and must not
+                                         be dispatched or counted **/
+    INI_IS_NOT_A_MARKER = 3         /**< This is not a marker at all, but a
+                                         normal character instead **/
+};
+
+
+/**
+    @brief  Possible values of #IniFormat::section_paths
+**/
+enum IniSectionPaths {
+    INI_ABSOLUTE_AND_RELATIVE = 0,  /**< Section paths starting with a dot
+                                         express nesting to the current parent,
+                                         to root otherwise **/
+    INI_ABSOLUTE_ONLY = 1,          /**< Section paths starting with a dot will
+                                         be cleaned of their leading dot and
+                                         appended to root **/
+    INI_ONE_LEVEL_ONLY = 2,         /**< Format supports sections, but the dot
+                                         does not express nesting and is not a
+                                         meta-character **/
+    INI_NO_SECTIONS = 3             /**< Format does *not* support sections --
+                                         `/\[[^\]]*\]/g`, if any, will be
+                                         treated as keys! **/
+};
+
+
+/**
+    @brief  Possible values of #IniFormat::multiline_nodes
+**/
+enum IniMultiline {
+    INI_MULTILINE_EVERYWHERE = 0,       /**< Comments, section paths and keys
+                                             -- disabled or not -- are allowed
+                                             to be multi-line **/
+    INI_BUT_COMMENTS = 1,               /**< Only section paths and keys --
+                                             disabled or not -- are allowed to
+                                             be multi-line **/
+    INI_BUT_DISABLED_AND_COMMENTS = 2,  /**< Only active section paths and
+                                             active keys are allowed to be
+                                             multi-line **/
+    INI_NO_MULTILINE = 3                /**< Multi-line escape sequences are
+                                             disabled **/
+};
+
+
+/**
+    @brief  A model format for standard INI files
+**/
+static const IniFormat INI_DEFAULT_FORMAT = _LIBCONFINI_DEFAULT_FORMAT_;
+
+
+/**
+    @brief  A model format for Unix-like .conf files (where space characters
+            are delimiters between keys and values)
+**/
+/*  All fields are set to `0` here.  */
+static const IniFormat INI_UNIXLIKE_FORMAT = _LIBCONFINI_UNIXLIKE_FORMAT_;
+
+
+/**
+    @brief  If set to `true`, key and section names in case-insensitive INI
+            formats will be dispatched lowercase, verbatim otherwise (default
+            value: `false`)
+**/
+extern bool INI_GLOBAL_LOWERCASE_MODE;
+
+
+/**
+    @brief  Value to be assigned to implicit keys (default value: `NULL`)
+**/
+extern char * INI_GLOBAL_IMPLICIT_VALUE;
+
+
+/**
+    @brief  Length of the value assigned to implicit keys (default value: `0`)
+**/
+extern size_t INI_GLOBAL_IMPLICIT_V_LEN;
+
+
+
+/*  CLEAN THE PRIVATE ENVIRONMENT  */
+
+
+#undef _LIBCONFINI_UNIXLIKE_FORMAT_
+#undef _LIBCONFINI_DEFAULT_FORMAT_
+#undef _LIBCONFINI_INIFORMAT_TYPE_
+#undef __INIFORMAT_TABLE_CB_ZERO__
+#undef __INIFORMAT_TABLE_CB_DEFAULT__
+#undef __INIFORMAT_TABLE_CB_FIELDS__
+
+
+
+/*  END OF `_LIBCONFINI_HEADER_`  */
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif
+
+
+
+/*  EOF  */
+

include/constants.h

@@ -1,5 +1,38 @@
+#ifndef CONTROLLER_CONTANTS_H
+#define CONTROLLER_CONTANTS_H
+
+#include <log_levels.h>
+
 #define SECONDS_PER_DAY 86400 // 60 * 60 * 24
 
 #define SECONDS_PER_MINUTE 60
 
 #define POLL_FDS_COUNT 2
+
+/**
+ * @brief Limit the maximum length of a controller/relay/etc name
+ *
+ * The NULL terminator is not included. Arrays of length #MAX_NAME_LENGTH + 1 are required.
+ */
+#define MAX_NAME_LENGTH 128
+
+/**
+ * @brief Maximum number of dbs for the databases for the MDB_env
+ *
+ * Used when calling mdb_env_set_maxdbs() in database_setup()
+ */
+#define MDB_MAXDBS 8
+
+/**
+ * @brief Indicates to which level to log
+ *
+ * @see include/log_levels.h
+ */
+#define LOG_LEVEL LOG_LEVEL_DEBUG
+
+/**
+ * @brief How many milli seconds to wait until poll timeout in main loop
+ */
+#define ACCEPT_TIMEOUT_MSECONDS 1000
+
+#endif /* CONTROLLER_CONTANTS_H */

include/drivers.h

@@ -2,13 +2,14 @@
 #define CONTROLLER_DRIVERS_H
 
 #include <models/relay.h>
+#include <enums.h>
 
 #define DRIVER_PIFACE_GPIO_BASE 200
 
 void
-driver_piface_set(relay_t *relay, int value);
+driver_piface_set(int pin, int value);
 
 void
-driver_gpio_set(relay_t *relay, int value);
+driver_gpio_set(int pin, int value);
 
 #endif /* CONTROLLER_DRIVERS_H */

include/enums.h

@@ -1,21 +1,21 @@
 #ifndef CONTROLLER_ENUMS_H
 #define CONTROLLER_ENUMS_H
 
-enum poll_fgs
+typedef enum
 {
     POLL_FDS_DISCOVERY,
     POLL_FDS_COMMAND
-};
+} poll_fds_t;
 
-enum discovery_mapping
+typedef enum
 {
     DISCOVERY_MAPPING_ID = 0,
     DISCOVERY_MAPPING_NAME = 1,
     DISCOVERY_MAPPING_COMMAND_PORT = 2,
     DISCOVERY_MAPPING_RELAY_COUNT = 3,
-};
+} discovery_mapping_t;
 
-enum control_mapping
+typedef enum
 {
     COMMAND_MAPPING_CODE = 0,
     COMMAND_MAPPING_NAME = 1,
@@ -23,9 +23,9 @@ enum control_mapping
     COMMAND_MAPPING_SCHEDULE_ID = 3,
     COMMAND_MAPPING_PERIODS_COUNT = 4,
     COMMAND_MAPPING_PERIODS_BLOB = 5,
-};
+} control_mapping_t;
 
-enum command_code
+typedef enum
 {
     COMMAND_CODE_GET_TIME = 1,
     COMMAND_CODE_GET_ID = 2,
@@ -35,6 +35,13 @@ enum command_code
     COMMAND_CODE_GET_SCHEDULE = 103,
     COMMAND_CODE_SET_RELAY_NAME = 104,
     COMMAND_CODE_GET_RELAY_NAME = 105,
-};
+} command_code_t;
+
+typedef enum
+{
+    RELAY_DRIVER_NONE = 0,
+    RELAY_DRIVER_GPIO = 1,
+    RELAY_DRIVER_PIFACE = 2,
+} relay_driver_t;
 
 #endif /* CONTROLLER_ENUMS_H */

include/helpers.h

@@ -1,6 +1,8 @@
 #ifndef CONTROLLER_HELPERS_H
 #define CONTROLLER_HELPERS_H
 
+#include <confini.h>
+
 int
 helper_connect_tcp_server(char* host, uint16_t port);
 
@@ -22,4 +24,7 @@ helper_get_port(int sock);
 int
 helper_open_discovery_socket(uint16_t discovery_port);
 
+int
+helper_load_config(IniDispatch *disp, void *config_void);
+
 #endif /* CONTROLLER_HELPERS_H */

include/logger.h

@@ -21,7 +21,7 @@ char _LOGGER_TIMESTAMP[_LOGGER_TIMESTAMP_SIZE];
 char*
 logger_get_timestamp();
 
-#define _LOGGER_MESSAGE(msg) COLOR_NONE " %s %s:%d:%s: " msg "\n", logger_get_timestamp(), __FILENAME__, __LINE__, __func__
+#define _LOGGER_MESSAGE(msg) " %s %s:%d:%s: " COLOR_NONE msg "\n", logger_get_timestamp(), __FILENAME__, __LINE__, __func__
 
 #if LOG_LEVEL >= LOG_LEVEL_TRACE
     #define LOG_TRACE(msg, ...) fprintf(stdout, COLOR_TRACE "[TRACE]" _LOGGER_MESSAGE(msg), ##__VA_ARGS__)

include/models/controller.h

@@ -48,8 +48,7 @@ typedef enum
     DB_KEY_CONTROLLER_NAME = 1,
     DB_KEY_CONTROLLER_COMMAND_PORT = 2,
     DB_KEY_CONTROLLER_DISCOVERY_PORT = 3,
-    DB_KEY_CONTROLLER_RELAY_COUNT = 4,
+    DB_KEY_CONTROLLER_RELAYS = 4,
-    DB_KEY_CONTROLLER_RELAYS = 5,
 } db_key_controller_e;
 
 /**

include/models/relay.h

@@ -5,7 +5,7 @@
 #include <time.h>
 #include <lmdb.h>
 
-#include <config.h>
+#include <constants.h>
 #include <models/schedule.h>
 
 typedef struct

main.c

@@ -20,6 +20,9 @@
 #include <wiringPi.h>
 #include <piFace.h>
 #include <wiring_debug.h>
+#include <confini.h>
+
+config_t global_config;
 
 static MDB_env *mdb_env;
 static controller_t *this_controller;
@@ -39,6 +42,8 @@ terminate(int signum)
 
     controller_free(this_controller);
 
+    free(global_config.relay_configs);
+
     exit(signum);
 }
 
@@ -60,6 +65,23 @@ main(int argc, char** argv)
     signal(SIGABRT, terminate);
     signal(SIGTERM, terminate);
 
+    /******************** LOAD CONFIG ********************/
+
+    char ini_file_name[] = "controller.ini";
+    FILE * const ini_file = fopen(ini_file_name, "rb");
+    if(ini_file == NULL)
+    {
+        LOG_ERROR("%s file was not found", ini_file_name);
+        exit(1);
+    }
+    if(load_ini_file( ini_file, INI_DEFAULT_FORMAT, NULL, helper_load_config, &global_config))
+    {
+        LOG_ERROR("unable to parse ini file");
+        exit(1);
+    }
+ 
+    fclose(ini_file);
+
     if(sizeof(time_t) < 8)
     {
         LOG_WARN("this system is not using 8-bit time");

models/controller.c

@@ -6,6 +6,8 @@
 
 #include <models/controller.h>
 #include <macros.h>
+#include <config.h>
+#include <constants.h>
 
 controller_t*
 controller_create(void)
@@ -13,10 +15,12 @@ controller_create(void)
     controller_t *new_controller = malloc(sizeof(*new_controller));
     uuid_generate(new_controller->id);
 
-    strcpy(new_controller->name, "new emgauwa device");
+    strncpy(new_controller->name, global_config.name, MAX_NAME_LENGTH);
+    new_controller->name[MAX_NAME_LENGTH] = '\0';
+
     new_controller->command_port = 0;
-    new_controller->discovery_port = 4421;
+    new_controller->discovery_port = global_config.discovery_port;
-    new_controller->relay_count = 10;
+    new_controller->relay_count = global_config.relay_count;
 
     new_controller->relays = malloc(sizeof(relay_t) * new_controller->relay_count);
     uint8_t i;

models/controller_load.c

@@ -70,8 +70,7 @@ controller_load(MDB_env *mdb_env)
     controller_load_single(mdb_txn, mdb_dbi, DB_KEY_CONTROLLER_DISCOVERY_PORT, &value);
     new_controller->discovery_port = ((uint16_t*)value.mv_data)[0];
 
-    controller_load_single(mdb_txn, mdb_dbi, DB_KEY_CONTROLLER_RELAY_COUNT, &value);
+    new_controller->relay_count = global_config.relay_count;
-    new_controller->relay_count = ((uint8_t*)value.mv_data)[0];
 
     mdb_txn_abort(mdb_txn); // transaction is read only
 

models/controller_save.c

@@ -78,14 +78,6 @@ controller_save(controller_t *controller, MDB_env *mdb_env)
         return 1;
     }
 
-    value.mv_size = sizeof(controller->relay_count);
-    value.mv_data = &controller->relay_count;
-    if(controller_save_single(mdb_txn, mdb_dbi, DB_KEY_CONTROLLER_RELAY_COUNT, value))
-    {
-        LOG_ERROR("failed to save relay count");
-        return 1;
-    }
-
     mdb_txn_commit(mdb_txn);
 
     for(uint8_t i = 0; i < controller->relay_count; ++i)

models/relay.c

@@ -2,7 +2,6 @@
 #include <string.h>
 #include <uuid/uuid.h>
 
-#include <constants.h>
 #include <logger.h>
 #include <models/relay.h>