13 // Digested statistics for writing to logs etc.
17 // The number of bytes we have received so far, including any Metacube headers.
19 // Not reset across connections.
20 size_t bytes_received;
22 // The number of data bytes we have received so far (or more precisely,
23 // number of data bytes we have sent on to the stream). This excludes Metacube
24 // headers, metadata and corrupted data we've skipped.
26 // Not reset across connections.
27 size_t data_bytes_received;
29 // Same, except counts only Metacube metadata.
30 size_t metadata_bytes_received;
32 // When the current connection was initiated. -1 if we are not currently connected.
35 // Last latency measurement, HUGE_VAL if no measurement yet.
38 // TODO: Number of loss events might both be useful,
39 // similar to for clients. Also, per-connection byte counters.
42 class Input : public Thread {
44 // Must be in sync with StreamConfig::Encoding.
45 enum Encoding { INPUT_ENCODING_RAW = 0, INPUT_ENCODING_METACUBE };
48 virtual InputProto serialize() const = 0;
49 virtual std::string get_url() const = 0;
50 virtual void close_socket() = 0;
51 virtual void add_destination(int stream_index) = 0;
53 // Note: May be called from a different thread, so must be thread-safe.
54 virtual InputStats get_stats() const = 0;
57 // Extremely rudimentary URL parsing.
58 bool parse_url(const std::string &url, std::string *protocol, std::string *user, std::string *host, std::string *port, std::string *path);
60 // Figure out the right type of input based on the URL, and create a new Input of the right type.
61 // Will return NULL if unknown.
62 Input *create_input(const std::string &url, Input::Encoding encoding);
63 Input *create_input(const InputProto &serialized);
65 #endif // !defined(_INPUT_H)