Feature/bacnet server client app example (#273)
* Create example server-client for R/W polling application example. Co-authored-by: Steve Karg <skarg@users.sourceforge.net>
This commit is contained in:
Steve Karg
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#Makefile to build BACnet Application using GCC compiler
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# Executable file name - BACnet Server-Client Polling Application
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TARGET = bacpoll
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# BACnet objects that are used with this app
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# BACnet objects that are used with this app
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BACNET_OBJECT_DIR = $(BACNET_SRC_DIR)/bacnet/basic/object
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BACNET_CLIENT_DIR = $(BACNET_SRC_DIR)/bacnet/basic/client
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SRC = main.c \
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$(BACNET_OBJECT_DIR)/client/device-client.c \
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$(BACNET_OBJECT_DIR)/netport.c \
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$(BACNET_CLIENT_DIR)/bac-data.c \
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$(BACNET_CLIENT_DIR)/bac-rw.c \
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$(BACNET_CLIENT_DIR)/bac-task.c
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# TARGET_EXT is defined in apps/Makefile as .exe or nothing
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TARGET_BIN = ${TARGET}$(TARGET_EXT)
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OBJS += ${SRC:.c=.o}
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all: ${BACNET_LIB_TARGET} Makefile ${TARGET_BIN}
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${TARGET_BIN}: ${OBJS} Makefile ${BACNET_LIB_TARGET}
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${CC} ${PFLAGS} ${OBJS} ${LFLAGS} -o $@
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size $@
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cp $@ ../../bin
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${BACNET_LIB_TARGET}:
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( cd ${BACNET_LIB_DIR} ; $(MAKE) clean ; $(MAKE) -s )
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.c.o:
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${CC} -c ${CFLAGS} $*.c -o $@
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.PHONY: depend
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depend:
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rm -f .depend
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${CC} -MM ${CFLAGS} *.c >> .depend
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.PHONY: clean
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clean:
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rm -f core ${TARGET_BIN} ${OBJS} $(TARGET).map ${BACNET_LIB_TARGET}
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.PHONY: include
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include: .depend
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@@ -0,0 +1,227 @@
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/**
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* @file
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* @author Steve Karg
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* @date 2022
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* @brief Application to acquire data from a target client
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*
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* SPDX-License-Identifier: MIT
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*/
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#include <stddef.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <string.h>
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#include "bacnet/config.h"
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#include "bacnet/bacdef.h"
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#include "bacnet/bacenum.h"
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#include "bacnet/bactext.h"
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#include "bacnet/version.h"
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#include "bacnet/basic/sys/filename.h"
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#include "bacnet/basic/sys/mstimer.h"
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#include "bacnet/basic/client/bac-task.h"
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#include "bacnet/basic/client/bac-data.h"
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#include "bacnet/basic/object/device.h"
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#include "bacnet/datalink/datalink.h"
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#include "bacnet/datalink/dlenv.h"
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/* print with flush by default */
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#define PRINTF(...) \
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fprintf(stderr, __VA_ARGS__); \
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fflush(stderr)
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/* current version of the BACnet stack */
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static const char *BACnet_Version = BACNET_VERSION_TEXT;
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static void print_usage(const char *filename)
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{
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PRINTF("Usage: %s [device-instance]\n", filename);
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PRINTF(" [object-type] [object-instance]\n");
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PRINTF(" [--device][--print-seconds]\n");
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PRINTF(" [--version][--help]\n");
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}
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static void print_help(const char *filename)
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{
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PRINTF("Simulate a BACnet server-client device.\n");
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PRINTF("device-instance:\n"
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"BACnet Device Object Instance number that you are\n"
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"trying to communicate to. This number will be used\n"
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"to try and bind with the device using Who-Is and\n"
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"I-Am services. For example, if you were reading\n"
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"Device Object 123, the device-instance would be 123.\n"
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"\nobject-type:\n"
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"The object type is object that you are reading. It\n"
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"can be defined either as the object-type name string\n"
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"as defined in the BACnet specification, or as the\n"
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"integer value of the enumeration BACNET_OBJECT_TYPE\n"
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"in bacenum.h. For example if you were reading Analog\n"
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"Output 2, the object-type would be analog-output or 1.\n"
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"\nobject-instance:\n"
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"This is the object instance number of the object that\n"
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"you are reading. For example, if you were reading\n"
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"Analog Output 2, the object-instance would be 2.\n");
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PRINTF("\n"
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"Example:\n"
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"If you want read the Present-Value of Analog Output 101\n"
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"in Device 123, you could send either of the following\n"
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"commands:\n"
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"%s 123 analog-output 101\n"
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"%s 123 1 101\n"
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"If you want read the Present-Value of Binary Input 1\n"
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"in Device 123, you could send either of the following\n"
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"commands:\n"
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"%s 123 binary-input 1\n"
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"%s 123 3 1\n",
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filename, filename, filename, filename);
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}
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/**
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* @brief Main function of server-client demo.
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* @param argc [in] Arg count.
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* @param argv [in] Takes one argument: the Device Instance #.
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* @return 0 on success.
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*/
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int main(int argc, char *argv[])
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{
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int argi = 0;
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unsigned int target_args = 0;
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const char *filename = NULL;
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uint32_t device_id = BACNET_MAX_INSTANCE;
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struct mstimer print_value_timer = { 0 };
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float float_value = 0.0;
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bool bool_value = false;
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uint32_t unsigned_value = 0;
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/* data from the command line */
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unsigned long print_seconds = 10;
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uint32_t target_device_object_instance = BACNET_MAX_INSTANCE;
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uint32_t target_object_instance = BACNET_MAX_INSTANCE;
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BACNET_OBJECT_TYPE target_object_type = OBJECT_ANALOG_INPUT;
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filename = filename_remove_path(argv[0]);
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for (argi = 1; argi < argc; argi++) {
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if (strcmp(argv[argi], "--help") == 0) {
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print_usage(filename);
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print_help(filename);
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return 0;
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}
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if (strcmp(argv[argi], "--version") == 0) {
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PRINTF("%s %s\n", filename, BACNET_VERSION_TEXT);
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PRINTF("Copyright (C) 2022 by Steve Karg and others.\n"
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"This is free software; see the source for copying "
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"conditions.\n"
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"There is NO warranty; not even for MERCHANTABILITY or\n"
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"FITNESS FOR A PARTICULAR PURPOSE.\n");
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return 0;
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}
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if (strcmp(argv[argi], "--device") == 0) {
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if (++argi < argc) {
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device_id = strtol(argv[argi], NULL, 0);
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if (device_id > BACNET_MAX_INSTANCE) {
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fprintf(stderr, "device=%u - it must be less than %u\n",
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device_id, BACNET_MAX_INSTANCE);
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return 1;
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}
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}
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} else if (strcmp(argv[argi], "--print-seconds") == 0) {
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if (++argi < argc) {
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print_seconds = strtol(argv[argi], NULL, 0);
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}
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} else {
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if (target_args == 0) {
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target_device_object_instance = strtol(argv[argi], NULL, 0);
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target_args++;
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} else if (target_args == 1) {
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if (bactext_object_type_strtol(
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argv[argi], &target_object_type) == false) {
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fprintf(stderr, "object-type=%s invalid\n", argv[argi]);
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return 1;
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}
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target_args++;
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} else if (target_args == 2) {
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target_object_instance = strtol(argv[argi], NULL, 0);
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target_args++;
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} else {
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print_usage(filename);
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return 1;
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}
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}
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}
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if (target_args < 2) {
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print_usage(filename);
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return 0;
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}
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Device_Set_Object_Instance_Number(device_id);
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if (target_device_object_instance > BACNET_MAX_INSTANCE) {
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fprintf(stderr, "device-instance=%u - it must be less than %u\n",
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target_device_object_instance, BACNET_MAX_INSTANCE);
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return 1;
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}
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PRINTF("BACnet Server-Client Demo\n"
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"BACnet Stack Version %s\n"
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"BACnet Device ID: %u\n"
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"Max APDU: %d\n",
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BACnet_Version, Device_Object_Instance_Number(), MAX_APDU);
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fflush(stdout);
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dlenv_init();
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atexit(datalink_cleanup);
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bacnet_task_init();
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bacnet_data_poll_seconds_set(print_seconds);
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if (!bacnet_data_object_add(target_device_object_instance,
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target_object_type, target_object_instance)) {
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return 1;
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}
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mstimer_set(&print_value_timer, print_seconds * 1000);
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/* loop forever */
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for (;;) {
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bacnet_task();
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if (mstimer_expired(&print_value_timer)) {
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mstimer_reset(&print_value_timer);
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switch (target_object_type) {
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case OBJECT_ANALOG_INPUT:
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case OBJECT_ANALOG_OUTPUT:
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case OBJECT_ANALOG_VALUE:
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if (bacnet_data_analog_present_value(
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target_device_object_instance, target_object_type,
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target_object_instance, &float_value)) {
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PRINTF("Device %u %s-%u=%f\n",
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(unsigned)target_device_object_instance,
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bactext_object_type_name(target_object_type),
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(unsigned)target_object_instance, float_value);
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}
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break;
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case OBJECT_BINARY_INPUT:
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case OBJECT_BINARY_OUTPUT:
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case OBJECT_BINARY_VALUE:
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if (bacnet_data_binary_present_value(
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target_device_object_instance, target_object_type,
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target_object_instance, &bool_value)) {
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PRINTF("Device %u %s-%u=%s\n",
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(unsigned)target_device_object_instance,
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bactext_object_type_name(target_object_type),
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(unsigned)target_object_instance,
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bool_value ? "active" : "inactive");
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}
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break;
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case OBJECT_MULTI_STATE_INPUT:
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case OBJECT_MULTI_STATE_OUTPUT:
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case OBJECT_MULTI_STATE_VALUE:
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if (bacnet_data_multistate_present_value(
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target_device_object_instance, target_object_type,
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target_object_instance, &unsigned_value)) {
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PRINTF("Device %u %s-%u=%u\n",
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(unsigned)target_device_object_instance,
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bactext_object_type_name(target_object_type),
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(unsigned)target_object_instance,
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(unsigned)unsigned_value);
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}
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break;
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default:
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return 1;
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break;
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}
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}
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}
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return 0;
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}
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