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w32sock.h

00001 //-< W32SOCK.H >-----------------------------------------------------*--------*
00002 // FastDB                    Version 1.0         (c) 1997  GARRET    *     ?  *
00003 // (Main Memory Database Management System)                          *   /\|  *
00004 //                                                                   *  /  \  *
00005 //                          Created:      8-May-97    K.A. Knizhnik  * / [] \ *
00006 //                          Last update:  8-May-97    K.A. Knizhnik  * GARRET *
00007 //-------------------------------------------------------------------*--------*
00008 // Windows sockets  
00009 //-------------------------------------------------------------------*--------*
00010 
00011 #ifndef __W32SOCK_H__
00012 #define __W32SOCK_H__
00013 
00014 #include "sockio.h"
00015 
00016 BEGIN_FASTDB_NAMESPACE
00017 
00018 class win_socket : public socket_t { 
00019   protected: 
00020     SOCKET        s; 
00021     int           errcode;  // error code of last failed operation 
00022     char*         address;  // host address
00023 
00024     enum error_codes { 
00025         ok = 0,
00026         not_opened = -1,
00027         bad_address = -2,
00028         connection_failed = -3,
00029         broken_pipe = -4, 
00030         invalid_access_mode = -5
00031     };
00032 
00033   public: 
00034     bool      open(int listen_queue_size);
00035     bool      connect(int max_attempts, time_t timeout);
00036 
00037     int       read(void* buf, size_t min_size, size_t max_size,time_t timeout);
00038     bool      write(void const* buf, size_t size);
00039 
00040     bool      is_ok(); 
00041     bool      close(); 
00042     char*     get_peer_name();
00043     bool      shutdown();
00044     void      get_error_text(char* buf, size_t buf_size);
00045 
00046     socket_t* accept();
00047     bool      cancel_accept();
00048 
00049     int get_handle();
00050 
00051     win_socket(const char* address); 
00052     win_socket(SOCKET new_sock);
00053 
00054     ~win_socket();
00055 };
00056 
00057 #define SOCKET_BUF_SIZE (8*1024) 
00058 #define ACCEPT_TIMEOUT  (30*1000)
00059 
00060 class local_win_socket : public socket_t { 
00061   protected: 
00062     enum error_codes { 
00063         ok = 0,
00064         not_opened = -1,
00065         broken_pipe = -2,
00066         timeout_expired = -3
00067     };
00068     enum socket_signals {
00069         RD,  // receive data
00070         RTR, // ready to receive
00071         TD,  // transfer data
00072         RTT  // ready to transfer
00073     };
00074     //------------------------------------------------------
00075     // Mapping between signals at opposite ends of socket:
00076     // TD  ---> RD
00077     // RTR ---> RTT
00078     //------------------------------------------------------
00079 
00080     struct socket_buf { 
00081         volatile int RcvWaitFlag;
00082         volatile int SndWaitFlag;
00083         volatile int DataEnd;
00084         volatile int DataBeg;
00085         char Data[SOCKET_BUF_SIZE - 4*sizeof(int)];  
00086     };
00087     struct accept_data { 
00088         HANDLE Signal[4];
00089         HANDLE BufHnd;
00090     };
00091     struct connect_data { 
00092         HANDLE Mutex;
00093         int    Pid;
00094     };
00095     socket_buf* RcvBuf;
00096     socket_buf* SndBuf;
00097     HANDLE      Signal[4];         
00098     HANDLE      Mutex;
00099     HANDLE      BufHnd;
00100     int         Error;
00101     char*       Name;
00102 
00103   public: 
00104     bool      open(int listen_queue_size);
00105     bool      connect(int max_attempts, time_t timeout);
00106 
00107     int       read(void* buf, size_t min_size, size_t max_size,time_t timeout);
00108     bool      write(void const* buf, size_t size);
00109 
00110     char*     get_peer_name();
00111     bool      is_ok(); 
00112     bool      close();
00113     bool      shutdown();
00114     void      get_error_text(char* buf, size_t buf_size);
00115 
00116     socket_t* accept();
00117     bool      cancel_accept();
00118     
00119     int       get_handle();
00120 
00121     local_win_socket(const char* address); 
00122     local_win_socket(); 
00123 
00124     ~local_win_socket();
00125 };
00126 
00127 END_FASTDB_NAMESPACE
00128            
00129 #endif
00130 
00131 
00132 
00133 
00134 

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