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/* -*- C++ -*- */
//=============================================================================
/**
* @file SOCK_Acceptor.h
*
* $Id$
*
* @author Douglas C. Schmidt <schmidt@cs.wustl.edu>
*/
//=============================================================================
#ifndef ACE_SOCK_ACCEPTOR_H
#define ACE_SOCK_ACCEPTOR_H
#include "ace/pre.h"
#include "ace/SOCK_Stream.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/Time_Value.h"
/**
* @class ACE_SOCK_Acceptor
*
* @brief Defines a factory that creates new <ACE_Stream>s passively.
*
* The <ACE_SOCK_Acceptor> has its own "passive-mode" socket.
* This serves as a factory to create so-called "data-mode"
* sockets, which are what the <ACE_SOCK_Stream> encapsulates.
* Therefore, by inheriting from <ACE_SOCK>, <ACE_SOCK_Acceptor>
* gets its very own socket.
*/
class ACE_Export ACE_SOCK_Acceptor : public ACE_SOCK
{
public:
// = Initialization and termination methods.
/// Default constructor.
ACE_SOCK_Acceptor (void);
/**
* Initialize a passive-mode BSD-style acceptor socket (no QoS).
* <local_sap> is the address that we're going to listen for
* connections on. If <reuse_addr> is 1 then we'll use the
* <SO_REUSEADDR> to reuse this address.
*/
ACE_SOCK_Acceptor (const ACE_Addr &local_sap,
int reuse_addr = 0,
int protocol_family = PF_UNSPEC,
int backlog = ACE_DEFAULT_BACKLOG,
int protocol = 0);
/// Initialize a passive-mode QoS-enabled acceptor socket. Returns 0
/// on success and -1 on failure.
ACE_SOCK_Acceptor (const ACE_Addr &local_sap,
ACE_Protocol_Info *protocolinfo,
ACE_SOCK_GROUP g,
u_long flags,
int reuse_addr,
int protocol_family = PF_UNSPEC,
int backlog = ACE_DEFAULT_BACKLOG,
int protocol = 0);
/**
* Initialize a passive-mode BSD-style acceptor socket (no QoS).
* <local_sap> is the address that we're going to listen for
* connections on. If <reuse_addr> is 1 then we'll use the
* <SO_REUSEADDR> to reuse this address. Returns 0 on success and
* -1 on failure.
*/
int open (const ACE_Addr &local_sap,
int reuse_addr = 0,
int protocol_family = PF_UNSPEC,
int backlog = ACE_DEFAULT_BACKLOG,
int protocol = 0);
/// Initialize a passive-mode QoS-enabled acceptor socket. Returns 0
/// on success and -1 on failure.
int open (const ACE_Addr &local_sap,
ACE_Protocol_Info *protocolinfo,
ACE_SOCK_GROUP g,
u_long flags,
int reuse_addr,
int protocol_family = PF_UNSPEC,
int backlog = ACE_DEFAULT_BACKLOG,
int protocol = 0);
/// Close the socket. Returns 0 on success and -1 on failure.
int close (void);
/// Default dtor.
~ACE_SOCK_Acceptor (void);
// = Passive connection <accept> methods.
/**
* Accept a new <ACE_SOCK_Stream> connection. A <timeout> of 0
* means block forever, a <timeout> of {0, 0} means poll. <restart>
* == 1 means "restart if interrupted," i.e., if errno == EINTR.
* Note that <new_stream> inherits the "blocking mode" of <this>
* <ACE_SOCK_Acceptor>, i.e., if <this> acceptor factory is in
* non-blocking mode, the <net_stream> will be in non-blocking mode
* and vice versa.
*/
int accept (ACE_SOCK_Stream &new_stream,
ACE_Addr *remote_addr = 0,
ACE_Time_Value *timeout = 0,
int restart = 1,
int reset_new_handle = 0) const;
/**
* Accept a new <ACE_SOCK_Stream> connection using the QoS
* information in <qos_params>. A <timeout> of 0 means block
* forever, a <timeout> of {0, 0} means poll. <restart> == 1 means
* "restart if interrupted," i.e., if errno == EINTR. Note that
* <new_stream> inherits the "blocking mode" of <this>
* <ACE_SOCK_Acceptor>, i.e., if <this> acceptor factory is in
* non-blocking mode, the <net_stream> will be in non-blocking mode
* and vice versa.
*/
int accept (ACE_SOCK_Stream &new_stream,
ACE_Accept_QoS_Params qos_params,
ACE_Addr *remote_addr = 0,
ACE_Time_Value *timeout = 0,
int restart = 1,
int reset_new_handle = 0) const;
// = Meta-type info
typedef ACE_INET_Addr PEER_ADDR;
typedef ACE_SOCK_Stream PEER_STREAM;
/// Dump the state of an object.
void dump (void) const;
/// Declare the dynamic allocation hooks.
ACE_ALLOC_HOOK_DECLARE;
protected:
/// Perform operations that must occur before <ACE_OS::accept> is
/// called.
int shared_accept_start (ACE_Time_Value *timeout,
int restart,
int &in_blocking_mode) const;
/// Perform operations that must occur after <ACE_OS::accept> is
/// called.
int shared_accept_finish (ACE_SOCK_Stream new_stream,
int in_blocking_mode,
int reset_new_handle) const;
/**
* This method factors out the common <open> code and is called by
* both the QoS-enabled <open> method and the BSD-style <open>
* method.
*/
int shared_open (const ACE_Addr &local_sap,
int protocol_family,
int backlog);
private:
/// Do not allow this function to percolate up to this interface...
int get_remote_addr (ACE_Addr &) const;
};
#if !defined (ACE_LACKS_INLINE_FUNCTIONS)
#include "ace/SOCK_Acceptor.i"
#endif /* ACE_LACKS_INLINE_FUNCTIONS */
#include "ace/post.h"
#endif /* ACE_SOCK_ACCEPTOR_H */
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