X-Git-Url: https://git.sesse.net/?p=cubemap;a=blobdiff_plain;f=input.h;h=14537c85c6010900b8cb6c096cd8f48606ac648b;hp=508eb59ae68cac1ba029c88caae5f67bbff73000;hb=e1722a5c0341fd541ce57f1eed4dc76cbd3efe07;hpb=6d062eab70fd6528219545846e6c19c1cad35a3d diff --git a/input.h b/input.h index 508eb59..14537c8 100644 --- a/input.h +++ b/input.h @@ -4,37 +4,66 @@ #include #include -class Input { +#include "thread.h" + +class InputProto; + +class Input : public Thread { public: Input(const std::string &stream_id, const std::string &url); - // Connect to the given URL and start streaming. - void run(); + // Serialization/deserialization. + Input(const InputProto &serialized); + InputProto serialize() const; - // Stop streaming. NOTE: Does not currently work! - void stop(); + std::string get_url() const { return url; } private: - // Recovers the this pointer and calls do_work(). - static void *do_work_thunk(void *arg); - // Actually does the download. - void do_work(); + 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); - // Recovers the this pointer and calls curl_callback(). - static size_t curl_callback_thunk(char *ptr, size_t size, size_t nmemb, void *userdata); + // Parses a HTTP response. Returns false if it not a 200. + bool parse_response(const std::string &response); // 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); + void process_data(char *ptr, size_t bytes); // Drops bytes from the head of , // and outputs a warning. void drop_pending_data(size_t num_bytes); + enum State { + NOT_CONNECTED, + SENDING_REQUEST, + RECEIVING_HEADER, + RECEIVING_DATA, + CLOSING_SOCKET, // Due to error. + }; + State state; + std::string stream_id; + + // The URL and its parsed components. std::string url; + std::string host, port, path; + + // The HTTP request, with headers and all. + // Only relevant for SENDING_REQUEST. + std::string request; + + // How many bytes we've sent of the request so far. + // Only relevant for SENDING_REQUEST. + size_t request_bytes_sent; + + // 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. + std::string http_header; // Data we have received but not fully processed yet. std::vector pending_data; @@ -43,10 +72,8 @@ private: // this is true. bool has_metacube_header; - pthread_t worker_thread; - - // Whether we should stop or not. - volatile bool should_stop; + // The socket we are downloading on (or -1). + int sock; }; #endif // !defined(_INPUT_H)