106 lines
3.3 KiB
C
106 lines
3.3 KiB
C
/**
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* @file example.c
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* @brief 数据路由库使用示例
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*
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* 展示：
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* 1. 编译期声明报文类型 → 自动生成发送触发函数和接收回调声明
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* 2. 创建端口、设置报文类型
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* 3. 为一个端口注册多个外设 handler（一对多广播路由）
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* 4. 运行时增删 handler，切换路由
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* 5. 实现接收回调处理外设收到的数据
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*/
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#include "datarouter.h"
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#include <stdio.h>
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#include <string.h>
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/* ---- 外设发送 handler 实现 ---- */
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static void uart_send(uint32_t port_id, const void *data, size_t len)
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{
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printf("[UART] port %u: %.*s\n", port_id, (int)len, (const char *)data);
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}
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static void tcp_send(uint32_t port_id, const void *data, size_t len)
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{
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printf("[TCP] port %u: %.*s\n", port_id, (int)len, (const char *)data);
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}
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static void file_send(uint32_t port_id, const void *data, size_t len)
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{
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printf("[FILE] port %u: %.*s\n", port_id, (int)len, (const char *)data);
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}
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static void can_send(uint32_t port_id, const void *data, size_t len)
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{
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printf("[CAN] port %u: %.*s\n", port_id, (int)len, (const char *)data);
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}
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/* ---- 接收回调实现 ---- */
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void datarouter_on_recv_sensor(uint32_t port_id, const void *data, size_t len)
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{
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printf("[RX:sensor] port %u: %.*s\n", port_id, (int)len, (const char *)data);
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}
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void datarouter_on_recv_status(uint32_t port_id, const void *data, size_t len)
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{
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printf("[RX:status] port %u: %.*s\n", port_id, (int)len, (const char *)data);
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}
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/* ---- main ---- */
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int main(void)
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{
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datarouter_init();
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printf("Channels:\n");
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for (int i = 0; i < datarouter_channel_count(); i++)
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printf(" [%d] %s - %s\n", i,
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datarouter_channel_name(i),
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datarouter_channel_desc(i));
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/*
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* 创建一个 sensor 端口，注册多个 handler。
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* 一次 send_sensor() 调用同时路由到 UART + TCP + CAN。
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*/
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datarouter_port_t sensor_port = datarouter_port_create();
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datarouter_port_set_type(sensor_port, DATAROUTER_CHANNEL_sensor);
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datarouter_port_add_handler(sensor_port, uart_send);
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datarouter_port_add_handler(sensor_port, tcp_send);
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datarouter_port_add_handler(sensor_port, can_send);
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printf("\n--- send sensor (UART + TCP + CAN) ---\n");
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datarouter_send_sensor(sensor_port, "temperature:25.3", 16);
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/*
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* 运行时移除 TCP handler，只剩 UART + CAN。
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*/
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printf("\n--- remove TCP, keep UART + CAN ---\n");
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datarouter_port_remove_handler(sensor_port, tcp_send);
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datarouter_send_sensor(sensor_port, "temperature:26.1", 16);
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/*
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* 运行时再添加 FILE handler。
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*/
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printf("\n--- add FILE back, now UART + CAN + FILE ---\n");
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datarouter_port_add_handler(sensor_port, file_send);
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datarouter_send_sensor(sensor_port, "temperature:27.0", 16);
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/*
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* 清除所有 handler，不再输出到任何外设。
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*/
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printf("\n--- clear all handlers, nothing sent ---\n");
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datarouter_port_clear_handlers(sensor_port);
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int ret = datarouter_send_sensor(sensor_port, "lost", 4);
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printf("send_sensor after clear returned %d\n", ret);
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/* ---- 接收 ---- */
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printf("\n--- simulate peripheral receive ---\n");
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datarouter_on_recv_sensor(0, "temperature:24.8", 16);
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datarouter_on_recv_status(1, "status:ERROR", 12);
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datarouter_port_delete(sensor_port);
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return 0;
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}
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