| 1 | /*************************************************************************** |
| 2 | * Copyright (C) 2006 by Gerd v. Egidy * |
| 3 | * gve@intra2net.com * |
| 4 | * * |
| 5 | * This library is free software; you can redistribute it and/or modify * |
| 6 | * it under the terms of the GNU Lesser General Public License version * |
| 7 | * 2.1 as published by the Free Software Foundation. * |
| 8 | * * |
| 9 | * This library is distributed in the hope that it will be useful, * |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
| 12 | * GNU Lesser General Public License for more details. * |
| 13 | * * |
| 14 | * You should have received a copy of the GNU Lesser General Public * |
| 15 | * License along with this program; if not, write to the * |
| 16 | * Free Software Foundation, Inc., * |
| 17 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
| 18 | ***************************************************************************/ |
| 19 | #ifndef __LIBT2N_SOCKET_HANDLER |
| 20 | #define __LIBT2N_SOCKET_HANDLER |
| 21 | |
| 22 | #include <iostream> |
| 23 | |
| 24 | #include "types.hxx" |
| 25 | |
| 26 | namespace libt2n |
| 27 | { |
| 28 | |
| 29 | /** @brief handles socket based communication. |
| 30 | Don't use directly, use socket_server or socket_client_connection instead. |
| 31 | */ |
| 32 | class socket_handler |
| 33 | { |
| 34 | private: |
| 35 | static const unsigned int default_recv_buffer_size=2048; |
| 36 | static const unsigned int default_write_block_size=4096; |
| 37 | static const long long default_write_timeout=30000000; |
| 38 | |
| 39 | socket_type_value socket_type; |
| 40 | |
| 41 | bool data_waiting(long long usec_timeout,long long *usec_timeout_remaining=NULL); |
| 42 | void wait_ready_to_write(int socket, long long write_block_timeout); |
| 43 | |
| 44 | protected: |
| 45 | int sock; |
| 46 | unsigned int recv_buffer_size; |
| 47 | unsigned int write_block_size; |
| 48 | long long write_timeout; |
| 49 | |
| 50 | socket_handler(int _sock, socket_type_value _socket_type); |
| 51 | |
| 52 | void set_socket_options(int sock); |
| 53 | |
| 54 | virtual std::ostream* get_logstream(log_level_values level) |
| 55 | { return NULL; } |
| 56 | |
| 57 | void socket_write(const std::string& data); |
| 58 | |
| 59 | virtual void close(); |
| 60 | |
| 61 | bool fill_buffer(std::string& buffer, long long usec_timeout, long long* usec_timeout_remaining=NULL); |
| 62 | bool fill_buffer(std::string& buffer); |
| 63 | |
| 64 | public: |
| 65 | /// is this a tcp or unix socket connection |
| 66 | socket_type_value get_type() |
| 67 | { return socket_type; } |
| 68 | |
| 69 | bool is_closed(); |
| 70 | |
| 71 | void set_recv_buffer_size(unsigned int new_recv_buffer_size); |
| 72 | void set_write_block_size(unsigned int new_write_block_size); |
| 73 | void set_write_timeout(long long new_write_timeout); |
| 74 | |
| 75 | unsigned int get_recv_buffer_size() const { return recv_buffer_size; } |
| 76 | unsigned int get_write_block_size() const { return write_block_size; } |
| 77 | long long get_write_timeout() const { return write_timeout; } |
| 78 | }; |
| 79 | |
| 80 | } |
| 81 | |
| 82 | #endif |