#ifndef _INPUT_H
#define _INPUT_H 1
+#include <math.h>
+#include <stddef.h>
+#include <time.h>
#include <string>
#include "thread.h"
class Input;
class InputProto;
-// Extremely rudimentary URL parsing.
-bool parse_url(const std::string &url, std::string *protocol, std::string *host, std::string *port, std::string *path);
+// Digested statistics for writing to logs etc.
+struct InputStats {
+ std::string url;
-// Figure out the right type of input based on the URL, and create a new Input of the right type.
-// Will return NULL if unknown.
-Input *create_input(const std::string &url);
-Input *create_input(const InputProto &serialized);
+ // The number of bytes we have received so far, including any Metacube headers.
+ //
+ // Not reset across connections.
+ size_t bytes_received = 0;
+
+ // The number of data bytes we have received so far (or more precisely,
+ // number of data bytes we have sent on to the stream). This excludes Metacube
+ // headers, metadata and corrupted data we've skipped.
+ //
+ // Not reset across connections.
+ size_t data_bytes_received = 0;
+
+ // Same, except counts only Metacube metadata.
+ size_t metadata_bytes_received = 0;
+
+ // When the current connection was initiated. -1 if we are not currently connected.
+ time_t connect_time = -1;
+
+ // Last latency measurement, HUGE_VAL if no measurement yet.
+ double latency_sec = HUGE_VAL;
+
+ // TODO: Number of loss events might both be useful,
+ // similar to for clients. Also, per-connection byte counters.
+};
class Input : public Thread {
public:
+ // Must be in sync with StreamConfig::Encoding.
+ enum Encoding { INPUT_ENCODING_RAW = 0, INPUT_ENCODING_METACUBE };
+
virtual ~Input();
virtual InputProto serialize() const = 0;
virtual std::string get_url() const = 0;
virtual void close_socket() = 0;
virtual void add_destination(int stream_index) = 0;
+
+ // Note: May be called from a different thread, so must be thread-safe.
+ virtual InputStats get_stats() const = 0;
};
+// Extremely rudimentary URL parsing.
+bool parse_url(const std::string &url, std::string *protocol, std::string *user, std::string *host, std::string *port, std::string *path);
+
+// Figure out the right type of input based on the URL, and create a new Input of the right type.
+// Will return nullptr if unknown.
+Input *create_input(const std::string &url, Input::Encoding encoding);
+Input *create_input(const InputProto &serialized);
+
#endif // !defined(_INPUT_H)