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/* -*- C++ -*- */
// $Id$
// ===========================================================================
//
// = LIBRARY
// ace
//
// = FILENAME
// SOCK_Dgram.h
//
// = AUTHOR
// Doug Schmidt
//
// ===========================================================================
#ifndef ACE_SOCK_DGRAM_H
#define ACE_SOCK_DGRAM_H
#include "ace/pre.h"
#include "ace/SOCK.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/Addr.h"
class ACE_Export ACE_SOCK_Dgram : public ACE_SOCK
{
// = TITLE
// Defines the member functions for the ACE_SOCK datagram
// abstraction.
public:
// = Initialization and termination methods.
ACE_SOCK_Dgram (void);
// Default constructor.
ACE_SOCK_Dgram (const ACE_Addr &local,
int protocol_family = PF_INET,
int protocol = 0,
int reuse_addr = 0);
// This is a BSD-style method (i.e., no QoS) for initiating a socket
// dgram that will accept datagrams at the <local> address.
ACE_SOCK_Dgram (const ACE_Addr &local,
int protocol_family,
int protocol,
ACE_Protocol_Info *protocolinfo,
ACE_SOCK_GROUP g = 0,
u_long flags = 0,
int reuse_addr = 0);
// This is a QoS-enabed method for initiating a socket dgram that
// will accept datagrams at the <local> address. The <qos_params>
// are passed to <ACE_OS::join_leaf>.
int open (const ACE_Addr &local,
int protocol_family = PF_INET,
int protocol = 0,
int reuse_addr = 0);
// This is a BSD-style method (i.e., no QoS) for initiating a socket
// dgram that will accept datagrams at the <local> address.
int open (const ACE_Addr &local,
int protocol_family,
int protocol,
ACE_Protocol_Info *protocolinfo,
ACE_SOCK_GROUP g = 0,
u_long flags = 0,
int reuse_addr = 0);
// This is a QoS-enabed method for initiating a socket dgram that
// will accept datagrams at the <local> address. The <qos_params>
// are passed to <ACE_OS::join_leaf>.
~ACE_SOCK_Dgram (void);
// Default dtor.
// = Data transfer routines.
ssize_t send (const void *buf,
size_t n,
const ACE_Addr &addr,
int flags = 0) const;
// Send an <n> byte <buf> to the datagram socket (uses <sendto(3)>).
ssize_t recv (void *buf,
size_t n,
ACE_Addr &addr,
int flags = 0) const;
// Receive an <n> byte <buf> from the datagram socket (uses
// <recvfrom(3)>).
ssize_t recv (iovec *io_vec,
ACE_Addr &addr,
int flags = 0,
const ACE_Time_Value *timeout = 0) const;
// Allows a client to read from a socket without having to provide a
// buffer to read. This method determines how much data is in the
// socket, allocates a buffer of this size, reads in the data, and
// returns the number of bytes read. The caller is responsible for
// deleting the member in the <iov_base> field of <io_vec> using the
// ``delete []'' syntax.
ssize_t send (const iovec iov[],
size_t n,
const ACE_Addr &addr,
int flags = 0) const;
// Send an <iovec> of size <n> to the datagram socket (uses
// <sendmsg(3)>).
ssize_t recv (iovec iov[],
size_t n,
ACE_Addr &addr,
int flags = 0) const;
// Recv an <iovec> of size <n> to the datagram socket (uses
// <recvmsg(3)>).
ssize_t recv (void *buf,
size_t n,
ACE_Addr &addr,
int flags,
const ACE_Time_Value *timeout) const;
// Wait up to <timeout> amount of time to receive a datagram into
// <buf>. The <ACE_Time_Value> indicates how long to blocking
// trying to receive. If <timeout> == 0, the caller will block
// until action is possible, else will wait until the relative time
// specified in *<timeout> elapses). If <recv> times out a -1 is
// returned with <errno == ETIME>. If it succeeds the number of
// bytes received is returned.
ssize_t send (const void *buf,
size_t n,
ACE_Addr &addr,
int flags,
const ACE_Time_Value *timeout) const;
// Wait up to <timeout> amount of time to receive a datagram into
// <buf>. The <ACE_Time_Value> indicates how long to blocking
// trying to receive. If <timeout> == 0, the caller will block
// until action is possible, else will wait until the relative time
// specified in *<timeout> elapses). If <send> times out a -1 is
// returned with <errno == ETIME>. If it succeeds the number of
// bytes received is returned.
ssize_t send (const iovec buffers[],
int buffer_count,
size_t &number_of_bytes_sent,
int flags,
const ACE_Addr &addr,
ACE_OVERLAPPED *overlapped,
ACE_OVERLAPPED_COMPLETION_FUNC func) const;
// Send <buffer_count> worth of <buffers> to <addr> using overlapped
// I/O (uses <WSASentTo>). Returns 0 on success.
ssize_t recv (iovec buffers[],
int buffer_count,
size_t &number_of_bytes_recvd,
int &flags,
ACE_Addr &addr,
ACE_OVERLAPPED *overlapped,
ACE_OVERLAPPED_COMPLETION_FUNC func) const;
// Recv <buffer_count> worth of <buffers> from <addr> using
// overlapped I/O (uses <WSARecvFrom>). Returns 0 on success.
ssize_t send (const void *buf,
size_t n,
const ACE_Addr &addr,
int flags,
ACE_OVERLAPPED *overlapped,
ACE_OVERLAPPED_COMPLETION_FUNC func) const;
// Send an <n> byte <buf> to the datagram socket (uses <WSASentTo>).
ssize_t recv (void *buf,
size_t n,
ACE_Addr &addr,
int flags,
ACE_OVERLAPPED *overlapped,
ACE_OVERLAPPED_COMPLETION_FUNC func) const;
// Receive an <n> byte <buf> from the datagram socket (uses
// <WSARecvFrom>).
void dump (void) const;
// Dump the state of an object.
ACE_ALLOC_HOOK_DECLARE;
// Declare the dynamic allocation hooks.
protected:
int shared_open (const ACE_Addr &local,
int protocol_family);
// Open is shared by this and by <LSOCK_Dgram>.
private:
int get_remote_addr (ACE_Addr &) const;
// Do not allow this function to percolate up to this interface...
};
#if !defined (ACE_LACKS_INLINE_FUNCTIONS)
#include "ace/SOCK_Dgram.i"
#endif
#include "ace/post.h"
#endif /* ACE_SOCK_DGRAM_H */
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