update qcloud sdk

1. iot-hub sdk update to 3.2.0
2. iot-explorer update to 3.1.1

components/connectivity/qcloud-iot-hub-sdk/3rdparty/sdk_src/services/system/system_mqtt.c

@@ -0,0 +1,200 @@
+/*
+ * Tencent is pleased to support the open source community by making IoT Hub available.
+ * Copyright (C) 2018-2020 THL A29 Limited, a Tencent company. All rights reserved.
+
+ * Licensed under the MIT License (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://opensource.org/licenses/MIT
+
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is
+ * distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "qcloud_iot_export.h"
+#include "qcloud_iot_import.h"
+
+#ifdef SYSTEM_COMM
+#include <string.h>
+
+#include "lite-utils.h"
+#include "mqtt_client.h"
+#include "qcloud_iot_device.h"
+#include "qcloud_iot_export_system.h"
+
+static void _system_mqtt_message_callback(void *pClient, MQTTMessage *message, void *pUserData)
+{
+#define MAX_RECV_LEN (512)
+
+    POINTER_SANITY_CHECK_RTN(message);
+
+    static char rcv_buf[MAX_RECV_LEN + 1];
+    size_t      len = (message->payload_len > MAX_RECV_LEN) ? MAX_RECV_LEN : (message->payload_len);
+
+    if (message->payload_len > MAX_RECV_LEN) {
+        Log_e("payload len oversize");
+    }
+    memcpy(rcv_buf, message->payload, len);
+    rcv_buf[len]        = '\0';  // jsmn_parse relies on a string
+    SysMQTTState *state = (SysMQTTState *)pUserData;
+
+    Log_d("Recv Msg Topic:%s, payload:%s", message->ptopic, rcv_buf);
+
+    char *value = LITE_json_value_of("time", rcv_buf);
+    if (value != NULL)
+        state->time = atol(value);
+
+    state->result_recv_ok = true;
+    HAL_Free(value);
+    return;
+}
+
+static void _system_mqtt_sub_event_handler(void *pclient, MQTTEventType event_type, void *pUserData)
+{
+    SysMQTTState *state = (SysMQTTState *)pUserData;
+
+    switch (event_type) {
+        case MQTT_EVENT_SUBCRIBE_SUCCESS:
+            Log_d("mqtt sys topic subscribe success");
+            state->topic_sub_ok = true;
+            break;
+
+        case MQTT_EVENT_SUBCRIBE_TIMEOUT:
+            Log_i("mqtt sys topic subscribe timeout");
+            state->topic_sub_ok = false;
+            break;
+
+        case MQTT_EVENT_SUBCRIBE_NACK:
+            Log_i("mqtt sys topic subscribe NACK");
+            state->topic_sub_ok = false;
+            break;
+        case MQTT_EVENT_UNSUBSCRIBE:
+            Log_i("mqtt sys topic has been unsubscribed");
+            state->topic_sub_ok = false;
+            ;
+            break;
+        case MQTT_EVENT_CLIENT_DESTROY:
+            Log_i("mqtt client has been destroyed");
+            state->topic_sub_ok = false;
+            ;
+            break;
+        default:
+            return;
+    }
+}
+
+static int _iot_system_info_get_publish(void *pClient)
+{
+    POINTER_SANITY_CHECK(pClient, QCLOUD_ERR_INVAL);
+
+    Qcloud_IoT_Client *mqtt_client = (Qcloud_IoT_Client *)pClient;
+    DeviceInfo *       dev_info    = &mqtt_client->device_info;
+    POINTER_SANITY_CHECK(dev_info, QCLOUD_ERR_INVAL);
+
+    char topic_name[128]      = {0};
+    char payload_content[128] = {0};
+
+    HAL_Snprintf(topic_name, sizeof(topic_name), "$sys/operation/%s/%s", dev_info->product_id, dev_info->device_name);
+    HAL_Snprintf(payload_content, sizeof(payload_content), "{\"type\": \"get\", \"resource\": [\"time\"]}");
+
+    PublishParams pub_params = DEFAULT_PUB_PARAMS;
+    pub_params.qos           = QOS0;
+    pub_params.payload       = payload_content;
+    pub_params.payload_len   = strlen(payload_content);
+
+    return IOT_MQTT_Publish(mqtt_client, topic_name, &pub_params);
+}
+
+static int _iot_system_info_result_subscribe(void *pClient)
+{
+    POINTER_SANITY_CHECK(pClient, QCLOUD_ERR_INVAL);
+
+    Qcloud_IoT_Client *mqtt_client = (Qcloud_IoT_Client *)pClient;
+    DeviceInfo *       dev_info    = &mqtt_client->device_info;
+    SysMQTTState *     sys_state   = &mqtt_client->sys_state;
+
+    char topic_name[128] = {0};
+    int  size = HAL_Snprintf(topic_name, sizeof(topic_name), "$sys/operation/result/%s/%s", dev_info->product_id,
+                            dev_info->device_name);
+    if (size < 0 || size > sizeof(topic_name) - 1) {
+        Log_e("topic content length not enough! content size:%d  buf size:%d", size, (int)sizeof(topic_name));
+        return QCLOUD_ERR_FAILURE;
+    }
+    SubscribeParams sub_params      = DEFAULT_SUB_PARAMS;
+    sub_params.on_message_handler   = _system_mqtt_message_callback;
+    sub_params.on_sub_event_handler = _system_mqtt_sub_event_handler;
+    sub_params.user_data            = (void *)sys_state;
+    sub_params.qos                  = QOS0;
+
+    return IOT_MQTT_Subscribe(pClient, topic_name, &sub_params);
+}
+
+int IOT_Get_SysTime(void *pClient, long *time)
+{
+    int ret    = 0;
+    int cntSub = 0;
+    int cntRev = 0;
+
+    POINTER_SANITY_CHECK(pClient, QCLOUD_ERR_INVAL);
+    Qcloud_IoT_Client *mqtt_client = (Qcloud_IoT_Client *)pClient;
+
+    SysMQTTState *sys_state = &mqtt_client->sys_state;
+    // subscribe sys topic: $sys/operation/get/${productid}/${devicename}
+    // skip this if the subscription is done and valid
+    if (!sys_state->topic_sub_ok) {
+        for (cntSub = 0; cntSub < 3; cntSub++) {
+            ret = _iot_system_info_result_subscribe(mqtt_client);
+            if (ret < 0) {
+                Log_w("_iot_system_info_result_subscribe failed: %d, cnt: %d", ret, cntSub);
+                continue;
+            }
+
+            /* wait for sub ack */
+            ret = qcloud_iot_mqtt_yield_mt((Qcloud_IoT_Client *)pClient, 100);
+            if (ret || sys_state->topic_sub_ok) {
+                break;
+            }
+        }
+    }
+
+    // return failure if subscribe failed
+    if (!sys_state->topic_sub_ok) {
+        Log_e("Subscribe sys topic failed!");
+        return QCLOUD_ERR_FAILURE;
+    }
+
+    sys_state->result_recv_ok = false;
+    // publish msg to get system timestamp
+    ret = _iot_system_info_get_publish(mqtt_client);
+    if (ret < 0) {
+        Log_e("client publish sys topic failed :%d.", ret);
+        return ret;
+    }
+
+    do {
+        ret = qcloud_iot_mqtt_yield_mt((Qcloud_IoT_Client *)pClient, 100);
+        cntRev++;
+    } while (!ret && !sys_state->result_recv_ok && cntRev < 20);
+
+    if (sys_state->result_recv_ok) {
+        *time = sys_state->time;
+        ret   = QCLOUD_RET_SUCCESS;
+    } else {
+        *time = 0;
+        ret   = QCLOUD_ERR_FAILURE;
+    }
+
+    return ret;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif