X-Git-Url: https://git.sesse.net/?p=cubemap;a=blobdiff_plain;f=input.h;h=624ae33c6a3b10fac20577480df62f657dd9240d;hp=508eb59ae68cac1ba029c88caae5f67bbff73000;hb=50651c954803c1941e6ad1bb494712891c18f7d2;hpb=6d062eab70fd6528219545846e6c19c1cad35a3d

diff --git a/input.h b/input.h
index 508eb59..624ae33 100644
--- a/input.h
+++ b/input.h
@@ -1,52 +1,66 @@
 #ifndef _INPUT_H
 #define _INPUT_H 1
 
-#include <vector>
+#include <math.h>
+#include <stddef.h>
+#include <time.h>
 #include <string>
 
-class Input {
-public:
-	Input(const std::string &stream_id, const std::string &url);
-
-	// Connect to the given URL and start streaming.
-	void run();
+#include "thread.h"
 
-	// Stop streaming. NOTE: Does not currently work!
-	void stop();
+class Input;
+class InputProto;
 
-private:
-	// Recovers the this pointer and calls do_work().
-	static void *do_work_thunk(void *arg);
+// Digested statistics for writing to logs etc.
+struct InputStats {
+	std::string url;
 
-	// Actually does the download.
-	void do_work();
+	// The number of bytes we have received so far, including any Metacube headers.
+	//
+	// Not reset across connections.
+	size_t bytes_received = 0;
 
-	// Recovers the this pointer and calls curl_callback().
-	static size_t curl_callback_thunk(char *ptr, size_t size, size_t nmemb, void *userdata);
+	// 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;
 
-	// Stores the given data, looks for Metacube blocks (skipping data if needed),
-	// and calls process_block() for each one.
-	void curl_callback(char *ptr, size_t bytes);
-	void process_block(const char *data, uint32_t size, uint32_t flags);
+	// Same, except counts only Metacube metadata.
+	size_t metadata_bytes_received = 0;
 
-	// Drops <num_bytes> bytes from the head of <pending_data>,
-	// and outputs a warning.
-	void drop_pending_data(size_t num_bytes);
+	// When the current connection was initiated. -1 if we are not currently connected.
+	time_t connect_time = -1;
 
-	std::string stream_id;
-	std::string url;
+	// Last latency measurement, HUGE_VAL if no measurement yet.
+	double latency_sec = HUGE_VAL;
 
-	// Data we have received but not fully processed yet.
-	std::vector<char> pending_data;
+	// TODO: Number of loss events might both be useful,
+	// similar to for clients. Also, per-connection byte counters.
+};
 
-	// If <pending_data> starts with a Metacube header,
-	// this is true.
-	bool has_metacube_header;
+class Input : public Thread {
+public:
+	// Must be in sync with StreamConfig::Encoding.
+	enum Encoding { INPUT_ENCODING_RAW = 0, INPUT_ENCODING_METACUBE };
 
-	pthread_t worker_thread;
+	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;
 
-	// Whether we should stop or not.
-	volatile bool should_stop;
+	// 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)