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// "$Id$"
#include "Synch_Queued_Message.h"
#include "debug.h"
#include "ace/Malloc_T.h"
#include "ace/Log_Msg.h"
#include "ace/Message_Block.h"
ACE_RCSID (tao,
Synch_Queued_Message,
"$Id$")
TAO_Synch_Queued_Message::
TAO_Synch_Queued_Message (const ACE_Message_Block *contents,
ACE_Allocator *alloc,
int is_heap_allocated)
: TAO_Queued_Message (alloc, is_heap_allocated)
, contents_ (ACE_const_cast (ACE_Message_Block*,contents))
, current_block_ (contents_)
{
}
TAO_Synch_Queued_Message::~TAO_Synch_Queued_Message (void)
{
}
const ACE_Message_Block *
TAO_Synch_Queued_Message::current_block (void) const
{
return this->current_block_;
}
size_t
TAO_Synch_Queued_Message::message_length (void) const
{
if (this->current_block_ == 0)
return 0;
return this->current_block_->total_length ();
}
int
TAO_Synch_Queued_Message::all_data_sent (void) const
{
return this->current_block_ == 0;
}
void
TAO_Synch_Queued_Message::fill_iov (int iovcnt_max,
int &iovcnt,
iovec iov[]) const
{
ACE_ASSERT (iovcnt_max > iovcnt);
for (const ACE_Message_Block *message_block = this->current_block_;
message_block != 0 && iovcnt < iovcnt_max;
message_block = message_block->cont ())
{
size_t message_block_length = message_block->length ();
// Check if this block has any data to be sent.
if (message_block_length > 0)
{
// Collect the data in the iovec.
iov[iovcnt].iov_base = message_block->rd_ptr ();
iov[iovcnt].iov_len = ACE_static_cast (u_long, message_block_length);
// Increment iovec counter.
iovcnt++;
}
}
}
void
TAO_Synch_Queued_Message::bytes_transferred (size_t &byte_count)
{
this->state_changed_i (TAO_LF_Event::LFS_ACTIVE);
while (this->current_block_ != 0 && byte_count > 0)
{
size_t l = this->current_block_->length ();
if (byte_count < l)
{
this->current_block_->rd_ptr (byte_count);
byte_count = 0;
return;
}
byte_count -= l;
this->current_block_->rd_ptr (l);
this->current_block_ = this->current_block_->cont ();
while (this->current_block_ != 0
&& this->current_block_->length () == 0)
{
this->current_block_ = this->current_block_->cont ();
}
}
if (this->current_block_ == 0)
this->state_changed (TAO_LF_Event::LFS_SUCCESS);
}
TAO_Queued_Message *
TAO_Synch_Queued_Message::clone (ACE_Allocator *alloc)
{
TAO_Synch_Queued_Message *qm = 0;
// Clone the message block.
// NOTE: We wantedly do the cloning from <current_block_> instead of
// starting from <contents_> since we dont want to clone blocks that
// have already been sent on the wire. Waste of memory and
// associated copying.
ACE_Message_Block *mb =
this->current_block_->clone ();
if (alloc)
{
ACE_NEW_MALLOC_RETURN (qm,
ACE_static_cast (TAO_Synch_Queued_Message *,
alloc->malloc (sizeof (TAO_Synch_Queued_Message))),
TAO_Synch_Queued_Message (mb,
alloc),
0);
}
else
{
// No allocator, so use the common heap!
if (TAO_debug_level == 4)
{
// This debug is for testing purposes!
ACE_DEBUG ((LM_DEBUG,
"TAO (%P|%t) - Synch_Queued_Message::clone\n",
"Using global pool for allocation \n"));
}
ACE_NEW_RETURN (qm,
TAO_Synch_Queued_Message (mb),
0);
}
// Set the flag to indicate that <qm> is created on the heap.
if (qm)
qm->is_heap_created_ = 1;
return qm;
}
void
TAO_Synch_Queued_Message::destroy (void)
{
if (this->is_heap_created_)
{
ACE_Message_Block::release (this->contents_);
this->current_block_ = 0;
// If we have an allocator release the memory to the allocator
// pool.
if (this->allocator_)
{
ACE_DES_FREE (this,
this->allocator_->free,
TAO_Synch_Queued_Message);
}
else // global release..
{
delete this;
}
}
}
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