#ifndef _HTTPINPUT_H
#define _HTTPINPUT_H 1
-#include <vector>
+#include <stddef.h>
+#include <sys/types.h>
+#include <mutex>
#include <string>
+#include <vector>
#include "input.h"
+#include "metacube2.h"
+#include "stream.h"
class InputProto;
+// Despite the name, covers input over both HTTP and pipes, both typically
+// wrapped in Metacube.
class HTTPInput : public Input {
public:
- HTTPInput(const std::string &stream_id, const std::string &url);
+ HTTPInput(const std::string &url, Input::Encoding encoding);
// Serialization/deserialization.
HTTPInput(const InputProto &serialized);
virtual std::string get_url() const { return url; }
+ virtual void add_destination(int stream_index);
+
+ virtual InputStats get_stats() const;
+
private:
// Actually does the download.
virtual void do_work();
// Open a socket that connects to the given host and port. Does DNS resolving.
int lookup_and_connect(const std::string &host, const std::string &port);
+ // Open a child process with the given command line (given to /bin/sh).
+ // Returns a pipe to its standard output.
+ int open_child_process(const std::string &cmdline);
+
// Parses a HTTP response. Returns false if it not a 200.
bool parse_response(const std::string &response);
// and outputs a warning.
void drop_pending_data(size_t num_bytes);
+ void process_metacube_metadata_block(const metacube2_block_header &hdr, const char *payload, uint32_t payload_size);
+
enum State {
NOT_CONNECTED,
SENDING_REQUEST,
};
State state;
- std::string stream_id;
+ std::vector<int> stream_indices;
// The URL and its parsed components.
std::string url;
std::string host, port, path;
+ // What the input stream is to be interpreted as (normally Metacube).
+ Input::Encoding encoding;
+
// The HTTP request, with headers and all.
// Only relevant for SENDING_REQUEST.
std::string request;
// The HTTP response we've received so far. Only relevant for RECEIVING_HEADER.
std::string response;
- // The HTTP respones headers we want to give clients for this input.
+ // The HTTP response headers we want to give clients for this input.
std::string http_header;
+ // The stream heder we want to give clients for this input.
+ std::string stream_header;
+
// Data we have received but not fully processed yet.
std::vector<char> pending_data;
// If <pending_data> starts with a Metacube header,
// this is true.
- bool has_metacube_header;
+ bool has_metacube_header = false;
// The socket we are downloading on (or -1).
- int sock;
+ int sock = -1;
+
+ // pid of the child process (or -1).
+ pid_t child_pid = -1;
+
+ // Mutex protecting <stats>.
+ mutable std::mutex stats_mutex;
+
+ // The current statistics for this connection. Protected by <stats_mutex>.
+ InputStats stats;
+
+ // Number of (started) connection attempts since last data byte was successfully read.
+ unsigned num_connection_attempts = 0;
+
+ // If set, don't log anything related to connections.
+ // (Only set if we've had enough unsuccessful connection attempts.)
+ bool suppress_logging = false;
+
+ // Last time we made a connection with logging enabled.
+ // (Initially at some point before the epoch.)
+ timespec last_verbose_connection { -3600, 0 };
+
+ // If we've received a Metacube2 PTS metadata block, it belongs to the
+ // next regular block we receive, and is stored here in the meantime.
+ // If we haven't received one yet (or we've already received the
+ // corresponding data block), this is empty, ie., timebase_num == 0.
+ RationalPTS next_block_pts;
};
#endif // !defined(_HTTPINPUT_H)