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TAO_AV_UDP_Transport Class Reference

A transport abstraction for udp sockets. Uses the ACE_SOCK_Dgram to send the data. More...

#include <UDP.h>

Inheritance diagram for TAO_AV_UDP_Transport:

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Collaboration diagram for TAO_AV_UDP_Transport:

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List of all members.

Public Member Functions

 TAO_AV_UDP_Transport (void)
 TAO_AV_UDP_Transport (TAO_AV_UDP_Flow_Handler *handler)
virtual ~TAO_AV_UDP_Transport (void)
virtual int open (ACE_Addr *addr)
virtual int close (void)
virtual int mtu (void)
 Write the complete Message_Block chain to the connection.

virtual ACE_Addr * get_peer_addr (void)
virtual int set_remote_address (const ACE_INET_Addr &address)
virtual ssize_t send (const ACE_Message_Block *mblk, ACE_Time_Value *s=0)
 Write the complete Message_Block chain to the connection.

virtual ssize_t send (const char *buf, size_t len, ACE_Time_Value *s=0)
 Write the contents of the buffer of length len to the connection.

virtual ssize_t send (const iovec *iov, int iovcnt, ACE_Time_Value *s=0)
 Write the contents of iovcnt iovec's to the connection.

virtual ssize_t recv (char *buf, size_t len, ACE_Time_Value *s=0)
 Read len bytes from into buf.

virtual ssize_t recv (char *buf, size_t len, int flags, ACE_Time_Value *s=0)
 Read len bytes from into buf using flags.

virtual ssize_t recv (iovec *iov, int iovcnt, ACE_Time_Value *s=0)
 Read received data into the iovec buffers.

TAO_AV_UDP_Flow_Handler * handler (void)

Protected Attributes

TAO_AV_UDP_Flow_Handler * handler_
ACE_Addr * addr_
ACE_INET_Addr peer_addr_

Detailed Description

A transport abstraction for udp sockets. Uses the ACE_SOCK_Dgram to send the data.

Definition at line 48 of file UDP.h.

Constructor & Destructor Documentation

TAO_AV_UDP_Transport::TAO_AV_UDP_Transport (  void   ) 
 

Definition at line 162 of file UDP.cpp. 

00163   :handler_ (0)
00164 {
00165 }

TAO_AV_UDP_Transport::TAO_AV_UDP_Transport (  TAO_AV_UDP_Flow_Handler *  handler  ) 
 

Definition at line 167 of file UDP.cpp. 

00168   :handler_ (handler),
00169    addr_ (0)
00170 {
00171 }

TAO_AV_UDP_Transport::~TAO_AV_UDP_Transport (  void   )  [virtual]
 

Definition at line 173 of file UDP.cpp. 

00174 {
00175 }

Member Function Documentation

int TAO_AV_UDP_Transport::close (  void   )  [virtual]
 

Implements TAO_AV_Transport.

Definition at line 191 of file UDP.cpp. 

00192 {
00193   return 0;
00194 }

ACE_Addr * TAO_AV_UDP_Transport::get_peer_addr (  void   )  [virtual]
 

Implements TAO_AV_Transport.

Definition at line 203 of file UDP.cpp. 

00204 {
00205   return &this->peer_addr_;
00206 }

TAO_AV_UDP_Flow_Handler* TAO_AV_UDP_Transport::handler (  void   )  [inline]
 

Definition at line 98 of file UDP.h. 

00098 { return this->handler_; }

int TAO_AV_UDP_Transport::mtu (  void   )  [virtual]
 

Write the complete Message_Block chain to the connection.

Implements TAO_AV_Transport.

Definition at line 197 of file UDP.cpp. 

00198 {
00199   return 65535;
00200 }

int TAO_AV_UDP_Transport::open (  ACE_Addr *  addr  )  [virtual]
 

Implements TAO_AV_Transport.

Definition at line 185 of file UDP.cpp. 

00186 {
00187   return 0;
00188 }

ssize_t TAO_AV_UDP_Transport::recv (  iovec *  iov,
int  iovcnt,
ACE_Time_Value *  s = 0
)  [virtual]
 

Read received data into the iovec buffers.

Implements TAO_AV_Transport.

Definition at line 313 of file UDP.cpp.

References TAO_AV_UDP_Flow_Handler::get_socket(), and ACE_SOCK_Dgram::recv(). 

00316 {
00317   return handler_->get_socket ()->recv (iov,this->peer_addr_,0,timeout);
00318 }

ssize_t TAO_AV_UDP_Transport::recv (  char *  buf,
size_t  len,
int  flags,
ACE_Time_Value *  s = 0
)  [virtual]
 

Read len bytes from into buf using flags.

Implements TAO_AV_Transport.

Definition at line 300 of file UDP.cpp.

References TAO_AV_UDP_Flow_Handler::get_socket(), and ACE_SOCK_Dgram::recv(). 

00304 {
00305   return this->handler_->get_socket ()->recv (buf,
00306                                               len,
00307                                               this->peer_addr_,
00308                                               flags,
00309                                               timeout);
00310 }

ssize_t TAO_AV_UDP_Transport::recv (  char *  buf,
size_t  len,
ACE_Time_Value *  s = 0
)  [virtual]
 

Read len bytes from into buf.

Implements TAO_AV_Transport.

Definition at line 292 of file UDP.cpp.

References TAO_AV_UDP_Flow_Handler::get_socket(), and ACE_SOCK_Dgram::recv(). 

00295 {
00296   return this->handler_->get_socket ()->recv (buf, len,this->peer_addr_);
00297 }

ssize_t TAO_AV_UDP_Transport::send (  const iovec *  iov,
int  iovcnt,
ACE_Time_Value *  s = 0
)  [virtual]
 

Write the contents of iovcnt iovec's to the connection.

Implements TAO_AV_Transport.

Definition at line 281 of file UDP.cpp.

References TAO_AV_UDP_Flow_Handler::get_socket(), and ACE_SOCK_Dgram::send(). 

00284 {
00285   return this->handler_->get_socket ()->send ((const iovec *) iov,
00286                                               iovcnt,
00287                                               this->peer_addr_);
00288 
00289 }

ssize_t TAO_AV_UDP_Transport::send (  const char *  buf,
size_t  len,
ACE_Time_Value *  s = 0
)  [virtual]
 

Write the contents of the buffer of length len to the connection.

Implements TAO_AV_Transport.

Definition at line 268 of file UDP.cpp.

References ACE_DEBUG, ACE_INET_Addr::addr_to_string(), TAO_AV_UDP_Flow_Handler::get_socket(), LM_DEBUG, ACE_SOCK_Dgram::send(), and TAO_debug_level. 

00271 {
00272   if (TAO_debug_level > 0) ACE_DEBUG ((LM_DEBUG,"TAO_AV_UDP_Transport::send "));
00273   char addr [BUFSIZ];
00274   this->peer_addr_.addr_to_string (addr,BUFSIZ);
00275   if (TAO_debug_level > 0) ACE_DEBUG ((LM_DEBUG,"to %s\n",addr));
00276 
00277   return this->handler_->get_socket ()->send (buf, len,this->peer_addr_);
00278 }

ssize_t TAO_AV_UDP_Transport::send (  const ACE_Message_Block *  mblk,
ACE_Time_Value *  s = 0
)  [virtual]
 

Write the complete Message_Block chain to the connection.

Implements TAO_AV_Transport.

Definition at line 209 of file UDP.cpp.

References ACE_IOV_MAX, ACE_Message_Block::cont(), TAO_AV_UDP_Flow_Handler::get_socket(), iovec::iov_base, iovec::iov_len, ACE_Message_Block::length(), ACE_Message_Block::rd_ptr(), ACE_SOCK_Dgram::send(), and ssize_t. 

00210 {
00211   // For the most part this was copied from GIOP::send_request and
00212   // friends.
00213 
00214   iovec iov[ACE_IOV_MAX];
00215   int iovcnt = 0;
00216   ssize_t n = 0;
00217   ssize_t nbytes = 0;
00218 
00219   for (const ACE_Message_Block *i = mblk;
00220        i != 0;
00221        i = i->cont ())
00222     {
00223       // Make sure there is something to send!
00224       if (i->length () > 0)
00225         {
00226           iov[iovcnt].iov_base = i->rd_ptr ();
00227           iov[iovcnt].iov_len  = static_cast<u_long> (i->length ());
00228           iovcnt++;
00229 
00230           // The buffer is full make a OS call.  @@ TODO this should
00231           // be optimized on a per-platform basis, for instance, some
00232           // platforms do not implement writev() there we should copy
00233           // the data into a buffer and call send_n(). In other cases
00234           // there may be some limits on the size of the iovec, there
00235           // we should set ACE_IOV_MAX to that limit.
00236           if (iovcnt == ACE_IOV_MAX)
00237             {
00238                n = this->handler_->get_socket ()->send ((const iovec *) iov,
00239                                                         iovcnt,
00240                                                         this->peer_addr_);
00241 
00242               if (n < 1)
00243                 return n;
00244 
00245               nbytes += n;
00246               iovcnt = 0;
00247             }
00248         }
00249     }
00250 
00251   // Check for remaining buffers to be sent!
00252   if (iovcnt != 0)
00253     {
00254       n = this->handler_->get_socket ()->send ((const iovec *) iov,
00255                                                iovcnt,
00256                                                this->peer_addr_);
00257 
00258       if (n < 1)
00259         return n;
00260 
00261       nbytes += n;
00262     }
00263 
00264   return nbytes;
00265 }

int TAO_AV_UDP_Transport::set_remote_address (  const ACE_INET_Addr &  address  )  [virtual]
 

Definition at line 178 of file UDP.cpp.

Referenced by TAO_AV_UDP_Flow_Handler::set_remote_address(). 

00179 {
00180   this->peer_addr_ = address;
00181   return 0;
00182 }

Member Data Documentation

ACE_Addr* TAO_AV_UDP_Transport::addr_ [protected]
 

Definition at line 102 of file UDP.h.

TAO_AV_UDP_Flow_Handler* TAO_AV_UDP_Transport::handler_ [protected]
 

Definition at line 101 of file UDP.h.

ACE_INET_Addr TAO_AV_UDP_Transport::peer_addr_ [protected]
 

Definition at line 103 of file UDP.h.

The documentation for this class was generated from the following files:
Generated on Thu Nov 9 13:48:25 2006 for TAO_AV by doxygen 1.3.6