odboy
5f95415b0f
- SDK main.c: 添加条件编译 #ifndef/#define KENAITO_CONF_CLIENT_IMPL
- Demo main.c: 移除 #include SDK 源文件，改为 extern 声明函数
- 修复 demo 中访问 configs.count 的编译错误
编译方式：
gcc -o demo main.c ../kenaito-conf-c-client/main.c \
-I/usr/local/opt/cjson/include -L/usr/local/opt/cjson/lib \
-lcurl -lcjson -lpthread
138 lines
3.9 KiB
C
138 lines
3.9 KiB
C
/**
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* Kenaito Config Center C Client Demo
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*
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* 演示如何使用 C 客户端 SDK
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*
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* 编译：
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* gcc -o demo main.c ../kenaito-conf-c-client/main.c -I/usr/local/opt/cjson/include -L/usr/local/opt/cjson/lib -lcurl -lcjson -lpthread
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*
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* 运行：
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* ./demo
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <signal.h>
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#include <unistd.h>
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#include <time.h>
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/* 声明 SDK 类型和函数 */
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typedef struct {
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char baseUrl[512];
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char appName[128];
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char env[32];
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char version[32];
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char token[256];
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int syncInterval;
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int ignoreGlobal;
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char cacheDir[256];
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} Config;
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typedef struct {
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Config config;
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void *configs;
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long lastTime;
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void (*onChange)(const char *key, const char *value);
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void *curl;
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int running;
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void *syncThread;
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} ConfigClient;
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extern void config_client_init(ConfigClient *client, Config *config);
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extern const char *config_client_get(ConfigClient *client, const char *key);
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extern void config_client_start(ConfigClient *client);
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extern void config_client_stop(ConfigClient *client);
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/* 全局客户端实例，用于信号处理 */
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static ConfigClient *g_demo_client = NULL;
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static int g_running = 1;
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/**
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* 配置变更回调示例
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*/
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void on_config_change(const char *key, const char *value) {
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printf("\n[Callback] Config changed: %s = %s\n", key, value);
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if (strcmp(key, "log.level") == 0) {
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printf(" -> Log level changed to: %s\n", value);
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} else if (strcmp(key, "database.host") == 0) {
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printf(" -> Database host changed to: %s\n", value);
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} else if (strcmp(key, "database.port") == 0) {
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printf(" -> Database port changed to: %s\n", value);
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} else if (strcmp(key, "feature.enabled") == 0) {
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printf(" -> Feature flag changed: %s\n", value);
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}
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}
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/**
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* 信号处理 - 优雅退出
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*/
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static void signal_handler(int sig) {
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printf("\n[Signal] Received signal %d, shutting down...\n", sig);
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g_running = 0;
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if (g_demo_client) {
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g_demo_client->running = 0;
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}
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}
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int main() {
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printf("========================================\n");
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printf(" Kenaito Config Center C Client Demo\n");
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printf("========================================\n\n");
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/* 注册信号处理 */
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signal(SIGINT, signal_handler);
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signal(SIGTERM, signal_handler);
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/* 配置客户端 */
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Config config = {
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.baseUrl = "http://localhost:8080",
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.appName = "kenaito-springboot-demo",
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.env = "daily",
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.version = "latest",
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.token = "",
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.syncInterval = 10,
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.ignoreGlobal = 0,
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.cacheDir = "."
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};
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ConfigClient client;
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config_client_init(&client, &config);
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client.onChange = on_config_change;
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g_demo_client = &client;
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/* 启动客户端 */
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config_client_start(&client);
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/* 主循环：演示配置读取 */
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printf("\n[Demo] Running... Press Ctrl+C to stop\n\n");
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int iterations = 0;
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while (g_running && iterations < 10) {
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sleep(5);
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/* 演示：定期读取并打印配置 */
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const char *dbHost = config_client_get(&client, "database.host");
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const char *dbPort = config_client_get(&client, "database.port");
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const char *logLevel = config_client_get(&client, "log.level");
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const char *featureEnabled = config_client_get(&client, "feature.enabled");
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printf("\n[Current Configs @ %ld]\n", time(NULL));
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printf(" database.host = %s\n", dbHost ? dbHost : "(not set)");
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printf(" database.port = %s\n", dbPort ? dbPort : "(not set)");
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printf(" log.level = %s\n", logLevel ? logLevel : "(not set)");
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printf(" feature.enabled = %s\n", featureEnabled ? featureEnabled : "(not set)");
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printf("\n");
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iterations++;
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}
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/* 停止客户端 */
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config_client_stop(&client);
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printf("\n[Demo] Finished\n");
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return 0;
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}
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