ACE/ace/TLI_Acceptor.h

   1 // -*- C++ -*-
   2
   3 //=============================================================================
   4 /**
   5  *  @file    TLI_Acceptor.h
   6  *
   7  *  @author Doug Schmidt
   8  */
   9 //=============================================================================
  10
  11
  12 #ifndef ACE_TLI_ACCEPTOR_H
  13 #define ACE_TLI_ACCEPTOR_H
  14 #include /**/ "ace/pre.h"
  15
  16 #include "ace/TLI.h"
  17
  18 #if !defined (ACE_LACKS_PRAGMA_ONCE)
  19 # pragma once
  20 #endif /* ACE_LACKS_PRAGMA_ONCE */
  21
  22 #include "ace/TLI_Stream.h"
  23 #include "ace/Default_Constants.h"
  24
  25 #if defined (ACE_HAS_TLI)
  26
  27 ACE_BEGIN_VERSIONED_NAMESPACE_DECL
  28
  29 // Forward reference...
  30 class ACE_TLI_Request_Queue;
  31 class ACE_Time_Value;
  32
  33 /**
  34  * @class ACE_TLI_Acceptor
  35  *
  36  * @brief Defines the member functions for ACE_TLI_Acceptor abstraction.
  37  *
  38  * This class implements the algorithm described in Steve Rago's
  39  * book on System V UNIX network programming.  It basically
  40  * makes TLI look like the C++ SOCK_SAP socket wrappers with
  41  * respect to establishing passive-mode listener endpoints.
  42  */
  43 class ACE_Export ACE_TLI_Acceptor : public ACE_TLI
  44 {
  45 public:
  46   friend class ACE_Request_Queue;
  47
  48   /// Default constructor.
  49   ACE_TLI_Acceptor ();
  50
  51   /// Initiate a passive mode socket.
  52   ACE_TLI_Acceptor (const ACE_Addr &remote_sap,
  53                     int reuse_addr = 0,
  54                     int oflag = O_RDWR,
  55                     struct t_info *info = 0,
  56                     int backlog = ACE_DEFAULT_BACKLOG,
  57                     const char device[] = ACE_TLI_TCP_DEVICE);
  58
  59   /// Initiate a passive mode socket.
  60   ACE_HANDLE open (const ACE_Addr &remote_sap,
  61                    int reuse_addr = 0,
  62                    int oflag = O_RDWR,
  63                    struct t_info *info = 0,
  64                    int backlog = ACE_DEFAULT_BACKLOG,
  65                    const char device[] = ACE_TLI_TCP_DEVICE);
  66
  67   /// Close down the acceptor and release resources.
  68   int close ();
  69
  70   // = Passive connection acceptance method.
  71
  72   /**
  73    * Accept a new data transfer connection.  A @a timeout of 0 means
  74    * block forever, a @a timeout of {0, 0} means poll.  <restart> == 1
  75    * means "restart if interrupted."
  76    */
  77   int accept (ACE_TLI_Stream &new_tli_sap,
  78               ACE_Addr *remote_addr = 0,
  79               ACE_Time_Value *timeout = 0,
  80               bool restart = true,
  81               bool reset_new_handle = false,
  82               int rwflag = 1,
  83               netbuf *udata = 0,
  84               netbuf *opt = 0);
  85
  86   // = Meta-type info
  87   typedef ACE_INET_Addr PEER_ADDR;
  88   typedef ACE_TLI_Stream PEER_STREAM;
  89
  90   /// Dump the state of an object.
  91   void dump () const;
  92
  93   /// Declare the dynamic allocation hooks.
  94   ACE_ALLOC_HOOK_DECLARE;
  95
  96 private:
  97   /// Network "device" we are using.
  98   const char *device_;
  99
 100   /// Number of connections to queue.
 101   int backlog_;
 102
 103   /// Are we using "tirdwr" mod?
 104   int rwflag_;
 105
 106   /// Handle TLI accept insanity...
 107   int handle_async_event (bool restart, int rwflag);
 108
 109   /// Used for queueing up pending requests.
 110   ACE_TLI_Request_Queue *queue_;
 111
 112   /// Used for handling disconnects
 113   struct t_discon *disp_;
 114 };
 115
 116 ACE_END_VERSIONED_NAMESPACE_DECL
 117
 118 #endif /* ACE_HAS_TLI */
 119 #include /**/ "ace/post.h"
 120 #endif /* ACE_TLI_ACCEPTOR_H */