Google Cloud IoT device SDK for embedded C  1.0.2
Files
Here is a list of all files with brief descriptions:
 iotc.hConnects to and communicates with Cloud IoT Core
 iotc_connection_data.hDefines connection states
 iotc_error.hDefines state messages and their numeric codes
 iotc_jwt.hCreates JSON Web Tokens for authenticating to Cloud IoT Core
 iotc_mqtt.hThe MQTT header flags
 iotc_time.hDefines the time storage type
 iotc_types.hDefines custom data formats