Initial idea

anscloud-gateway/include/anscloud/gateway/gateway_agent_c.h

@@ -0,0 +1,57 @@
+#pragma once
+#ifndef ANSCLOUD_GATEWAY_AGENT_C_H
+#define ANSCLOUD_GATEWAY_AGENT_C_H
+
+#ifdef ANSCLOUD_GATEWAY_EXPORTS
+  #define ANSCLOUD_GATEWAY_CAPI __declspec(dllexport)
+#else
+  #define ANSCLOUD_GATEWAY_CAPI __declspec(dllimport)
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct AnsGatewayAgent* AnsGatewayAgentHandle;
+
+typedef struct {
+    const char* host;
+    int         port;
+    const char* username;
+    const char* password;
+    const char* vhost;
+    int         use_tls;
+} AnsGatewayBrokerConfig;
+
+typedef struct {
+    const char* username;
+    const char* password;
+    const char* vhost;
+} AnsGatewayCredentials;
+
+typedef struct {
+    AnsGatewayBrokerConfig broker;
+    AnsGatewayCredentials  credentials;
+    int device_timeout_seconds;
+    int default_command_timeout_seconds;
+    int max_pending_commands;
+} AnsGatewayConfig;
+
+// Callbacks - all receive JSON strings
+typedef void (*AnsGatewayTelemetryCallbackFn)(const char* telemetry_json, void* user_data);
+typedef void (*AnsGatewayHeartbeatCallbackFn)(const char* heartbeat_json, void* user_data);
+typedef void (*AnsGatewayEventCallbackFn)(const char* event_json, void* user_data);
+typedef void (*AnsGatewayDeviceStatusCallbackFn)(const char* device_id, const char* status, void* user_data);
+typedef void (*AnsGatewayConnectionCallbackFn)(int connected, void* user_data);
+typedef void (*AnsGatewayErrorCallbackFn)(const char* error, void* user_data);
+
+//=============================================================================
+// Lifecycle
+//=============================================================================
+ANSCLOUD_GATEWAY_CAPI AnsGatewayAgentHandle ansgateway_create(void);
+ANSCLOUD_GATEWAY_CAPI void                  ansgateway_destroy(AnsGatewayAgentHandle handle);
+ANSCLOUD_GATEWAY_CAPI int  ansgateway_configure(AnsGatewayAgentHandle handle, const AnsGatewayConfig* config);
+ANSCLOUD_GATEWAY_CAPI int  ansgateway_start(AnsGatewayAgentHandle handle);
+ANSCLOUD_GATEWAY_CAPI void ansgateway_stop(AnsGatewayAgentHandle handle);
+ANSCLOUD_GATEWAY_CAPI int  ansgateway_is_running(AnsGatewayAgentHandle handle);
+ANSCLOUD_GATEWAY_CAPI int  ansgateway_is_connected(AnsGatewayAgentHandle handle);