SPIPE_Connector.h

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00001 // -*- C++ -*-
00002 
00003 //=============================================================================
00004 /**
00005  *  @file    SPIPE_Connector.h
00006  *
00007  *  SPIPE_Connector.h,v 4.22 2005/10/28 16:14:55 ossama Exp
00008  *
00009  *  @author Doug Schmidt <schmidt@cs.wustl.edu>
00010  *  @author Prashant Jain <pjain@cs.wustl.edu>
00011  */
00012 //=============================================================================
00013 
00014 #ifndef ACE_SPIPE_CONNECTOR_H
00015 #define ACE_SPIPE_CONNECTOR_H
00016 #include /**/ "ace/pre.h"
00017 
00018 #include "ace/SPIPE_Stream.h"
00019 #include "ace/os_include/os_fcntl.h"
00020 
00021 #if !defined (ACE_LACKS_PRAGMA_ONCE)
00022 # pragma once
00023 #endif /* ACE_LACKS_PRAGMA_ONCE */
00024 
00025 ACE_BEGIN_VERSIONED_NAMESPACE_DECL
00026 
00027 /**
00028  * @class ACE_SPIPE_Connector
00029  *
00030  * @brief Defines an active connection factory for <ACE_SPIPE_Stream>.
00031  * On Windows this is mapped to Named Pipes, whereas on UNIX it is
00032  * mapped to STREAM pipes.
00033  */
00034 class ACE_Export ACE_SPIPE_Connector
00035 {
00036 public:
00037   // = Initialization method.
00038   /// Default constructor.
00039   ACE_SPIPE_Connector (void);
00040 
00041   /**
00042    * Actively connect and produce a <new_stream> if things go well.
00043    * The <remote_sap> is the address that we are trying to connect
00044    * with.  The <timeout> is the amount of time to wait to connect.
00045    * If it's 0 then we block indefinitely.  If *timeout == {0, 0} then
00046    * the connection is done using non-blocking mode.  In this case, if
00047    * the connection can't be made immediately the value of -1 is
00048    * returned with <errno == EWOULDBLOCK>.  If *timeout > {0, 0} then
00049    * this is the maximum amount of time to wait before timing out.  If the
00050    * time expires before the connection is made <errno == ETIME>.  The
00051    * <local_sap> is the value of local address to bind to.  If it's
00052    * the default value of <ACE_Addr::sap_any> then the user is letting
00053    * the OS do the binding.  If <reuse_addr> == 1 then the
00054    * <local_addr> is reused, even if it hasn't been cleanedup yet.
00055    * The <flags> and <perms> arguments are passed down to the <open>
00056    * method.  The <pipe_mode> argument is only used in NT and is used to
00057    * establish the NT pipe mode.
00058    */
00059   ACE_SPIPE_Connector (ACE_SPIPE_Stream &new_io,
00060                        const ACE_SPIPE_Addr &remote_sap,
00061                        ACE_Time_Value *timeout = 0,
00062                        const ACE_Addr &local_sap = ACE_Addr::sap_any,
00063                        int reuse_addr = 0,
00064                        int flags = O_RDWR,
00065                        int perms = 0,
00066                        LPSECURITY_ATTRIBUTES sa = 0,
00067                        int pipe_mode = PIPE_READMODE_MESSAGE | PIPE_WAIT);
00068 
00069   /**
00070    * Actively connect and produce a <new_stream> if things go well.
00071    * The <remote_sap> is the address that we are trying to connect
00072    * with.  The <timeout> is the amount of time to wait to connect.
00073    * If it's 0 then we block indefinitely.  If *timeout == {0, 0} then
00074    * the connection is done using non-blocking mode.  In this case, if
00075    * the connection can't be made immediately the value of -1 is
00076    * returned with <errno == EWOULDBLOCK>.  If *timeout > {0, 0} then
00077    * this is the maximum amount of time to wait before timing out.  If the
00078    * time expires before the connection is made <errno == ETIME>.  The
00079    * <local_sap> is the value of local address to bind to.  If it's
00080    * the default value of <ACE_Addr::sap_any> then the user is letting
00081    * the OS do the binding.  If <reuse_addr> == 1 then the
00082    * <local_addr> is reused, even if it hasn't been cleanedup yet.
00083    * The <flags> and <perms> arguments are passed down to the <open>
00084    * method.  The <pipe_mode> argument is only used in NT and is used to
00085    * establish the NT pipe mode.
00086    */
00087   int connect (ACE_SPIPE_Stream &new_io,
00088                const ACE_SPIPE_Addr &remote_sap,
00089                ACE_Time_Value *timeout = 0,
00090                const ACE_Addr &local_sap = ACE_Addr::sap_any,
00091                int reuse_addr = 0,
00092                int flags = O_RDWR,
00093                int perms = 0,
00094                LPSECURITY_ATTRIBUTES sa = 0,
00095                int pipe_mode = PIPE_READMODE_MESSAGE | PIPE_WAIT);
00096 
00097   /// Resets any event associations on this handle
00098   int reset_new_handle (ACE_HANDLE handle);
00099 
00100   // = Meta-type info
00101   typedef ACE_SPIPE_Addr PEER_ADDR;
00102   typedef ACE_SPIPE_Stream PEER_STREAM;
00103 
00104   /// Dump the state of an object.
00105   void dump (void) const;
00106 
00107   /// Declare the dynamic allocation hooks.
00108   ACE_ALLOC_HOOK_DECLARE;
00109 };
00110 
00111 ACE_END_VERSIONED_NAMESPACE_DECL
00112 
00113 #if defined (__ACE_INLINE__)
00114 #include "ace/SPIPE_Connector.inl"
00115 #endif /* __ACE_INLINE__ */
00116 
00117 #include /**/ "ace/post.h"
00118 #endif /* ACE_SPIPE_CONNECTOR_H */

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