smart-sensor-example/sensor.proto

syntax = "proto3";

message Energy {
    uint32 mAh = 1;
}
message TimePoint {
    uint64 millis_since_epoch = 1;
}
message Duration {
    uint32 millis = 1;
}
message Temperature {
    double celsius = 1;
}

message StatusRequest {}
message SensorStatus {
    string name = 1;
    TimePoint online_since = 2;
    Energy battery_charge = 3;
    Energy battery_capacity = 4;
    Duration max_sampling_period = 5;
    Duration cur_sampling_period = 6;
    uint32 max_chunk_size = 7;
    uint32 cur_chunk_size = 8;
    uint32 n_chunk_capacity = 9;
    uint32 n_full_data_chunks = 10;
    uint32 n_empty_data_chunks = 11;
}

message DataChunkRequest {}
message DataChunk {
    TimePoint begin = 1;
    Duration period = 2;
    repeated Temperature data = 3;
}

enum SetSamplingPeriodResultEnum {
    OK = 0;
    OutOfRange = 1;
}

message SetSamplingPeriodResult {
    SetSamplingPeriodResultEnum result = 1;
}

service Sensor {
    rpc get_status (StatusRequest) returns (SensorStatus) {}
    rpc set_sampling_period (Duration) returns (SetSamplingPeriodResult) {}
    rpc pop_data_chunk (DataChunkRequest) returns (DataChunk) {}
}