OpenDDS::DCPS::Serializer::ScopedAlignmentContext Struct Reference

#include <Serializer.h>

Collaboration diagram for OpenDDS::DCPS::Serializer::ScopedAlignmentContext:

Public Member Functions
	ScopedAlignmentContext (Serializer &ser, size_t min_read=0)
virtual	~ScopedAlignmentContext ()
void	restore (Serializer &ser) const

Public Attributes
Serializer &	ser_
const size_t	max_align_
const size_t	start_rpos_
const size_t	rblock_
const size_t	min_read_
const size_t	start_wpos_
const size_t	wblock_

Detailed Description

Definition at line 752 of file Serializer.h.

Constructor & Destructor Documentation

ScopedAlignmentContext()

OpenDDS::DCPS::Serializer::ScopedAlignmentContext::ScopedAlignmentContext ( Serializer &  ser, size_t  min_read = 0  )

explicit

Definition at line 397 of file Serializer.cpp.

References OpenDDS::DCPS::Serializer::reset_alignment(), and ser_.

  : ser_(ser)
  , max_align_(ser.encoding().max_align())
  , start_rpos_(ser.rpos())
  , rblock_(max_align_ ? (ptrdiff_t(ser.current_->rd_ptr()) - ser.align_rshift_) % max_align_ : 0)
  , min_read_(min_read)
  , start_wpos_(ser.wpos())
  , wblock_(max_align_ ? (ptrdiff_t(ser.current_->wr_ptr()) - ser.align_wshift_) % max_align_ : 0)
{
  ser_.reset_alignment();
}

~ScopedAlignmentContext()

virtual OpenDDS::DCPS::Serializer::ScopedAlignmentContext::~ScopedAlignmentContext ( )

inlinevirtual

Definition at line 754 of file Serializer.h.

{ restore(ser_); }

Member Function Documentation

restore()

void OpenDDS::DCPS::Serializer::ScopedAlignmentContext::restore

(

Serializer &

ser

)

const

Definition at line 410 of file Serializer.cpp.

References OpenDDS::DCPS::Serializer::align_rshift_, OpenDDS::DCPS::Serializer::align_wshift_, OpenDDS::DCPS::Serializer::current_, max_align_, min_read_, OpenDDS::DCPS::Serializer::offset(), rblock_, ACE_Message_Block::rd_ptr(), OpenDDS::DCPS::Serializer::rpos(), OpenDDS::DCPS::Serializer::skip(), start_rpos_, start_wpos_, wblock_, OpenDDS::DCPS::Serializer::wpos(), and ACE_Message_Block::wr_ptr().

{
  if (min_read_ != 0 && (ser.rpos() - start_rpos_) < min_read_) {
    ser.skip(min_read_ - (ser.rpos() - start_rpos_));
  }

  if (ser.current_ && max_align_) {
    ser.align_rshift_ = offset(ser.current_->rd_ptr(), ser.rpos() - start_rpos_ + rblock_, max_align_);
    ser.align_wshift_ = offset(ser.current_->wr_ptr(), ser.wpos() - start_wpos_ + wblock_, max_align_);
  }
}

Member Data Documentation

max_align_

const size_t OpenDDS::DCPS::Serializer::ScopedAlignmentContext::max_align_

Definition at line 759 of file Serializer.h.

Referenced by restore().

min_read_

const size_t OpenDDS::DCPS::Serializer::ScopedAlignmentContext::min_read_

Definition at line 762 of file Serializer.h.

Referenced by restore().

rblock_

const size_t OpenDDS::DCPS::Serializer::ScopedAlignmentContext::rblock_

Definition at line 761 of file Serializer.h.

Referenced by restore().

ser_

Serializer& OpenDDS::DCPS::Serializer::ScopedAlignmentContext::ser_

Definition at line 758 of file Serializer.h.

Referenced by ScopedAlignmentContext().

start_rpos_

const size_t OpenDDS::DCPS::Serializer::ScopedAlignmentContext::start_rpos_

Definition at line 760 of file Serializer.h.

Referenced by restore().

start_wpos_

const size_t OpenDDS::DCPS::Serializer::ScopedAlignmentContext::start_wpos_

Definition at line 763 of file Serializer.h.

Referenced by restore().

wblock_

const size_t OpenDDS::DCPS::Serializer::ScopedAlignmentContext::wblock_

Definition at line 764 of file Serializer.h.

Referenced by restore().

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The documentation for this struct was generated from the following files:

• Serializer.h
• Serializer.cpp