From 2850c16f8aff7637b3a2b602f98805c2e704ddc5 Mon Sep 17 00:00:00 2001
From: Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com>
Date: Wed, 5 Dec 2007 17:11:22 +0000
Subject: 2007-12-06  Tatsuhiro Tsujikawa  <tujikawa at rednoah dot com>

	Rewritten direct I/O support routine
	* src/SingleFileAllocationIterator.cc
	* src/MultiDiskAdaptor.{h, cc}
	* src/ByteArrayDiskWriter.h
	* src/AbstractSingleDiskAdaptor.h
	* src/AbstractDiskWriter.cc
	* src/DefaultPieceStorage.cc
	* src/DiskWriter.h
	* src/BinaryStream.h
	* src/IteratableChunkChecksumValidator.cc
	* src/IteratableChecksumValidator.cc
	* src/CheckIntegrityEntry.cc
	* src/FileAllocationEntry.cc
---
 src/SingleFileAllocationIterator.cc | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'src/SingleFileAllocationIterator.cc')

diff --git a/src/SingleFileAllocationIterator.cc b/src/SingleFileAllocationIterator.cc
index 620410fa..ae6d513e 100644
--- a/src/SingleFileAllocationIterator.cc
+++ b/src/SingleFileAllocationIterator.cc
@@ -40,11 +40,16 @@
 #define BUFSIZE (256*1024)
 
 SingleFileAllocationIterator::SingleFileAllocationIterator(BinaryStream* stream, int64_t offset, int64_t totalLength):_stream(stream), _offset(offset), _totalLength(totalLength), _buffer(0)
-{}
+{
+  if(_offset%512 == 0) {
+    _stream->enableDirectIO();
+  }
+}
 
 SingleFileAllocationIterator::~SingleFileAllocationIterator()
 {
   delete [] _buffer;
+  _stream->disableDirectIO();
 }
 
 void SingleFileAllocationIterator::init()
-- 
cgit