diff options
| author | Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com> | 2007-12-06 12:32:27 +0000 |
|---|---|---|
| committer | Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com> | 2007-12-06 12:32:27 +0000 |
| commit | 68579bd2f4284ba9128cb972f8edaace03d466e5 (patch) | |
| tree | b1784b4bd10d6c04b78f68097374236442f09e7f /src/SingleFileAllocationIterator.cc | |
| parent | 30739b0763bb922d12e1616a2c8ce603bc80814d (diff) | |
2007-12-06 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com>
Changed Direct/IO enable/disable procesure in file allocation routine.
* src/SingleFileAllocationIterator.cc
(SingleFileAllocationIterator):
Disable directIO if offset is not multiple of 512.
(~SingleFileAllocationIterator): Removed a call to disableDirectIO.
* src/MultiFileAllocationIterator.cc (allocateChunk):
Enable created SingleFileAllocationIterator's directIO.
* src/FileAllocationEntry.cc
(FileAllocationEntry): Enable directIO here.
(~FileAllocationEntry): Disable directIO here.
Diffstat (limited to 'src/SingleFileAllocationIterator.cc')
| -rw-r--r-- | src/SingleFileAllocationIterator.cc | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/SingleFileAllocationIterator.cc b/src/SingleFileAllocationIterator.cc index ae6d513e..e71e16eb 100644 --- a/src/SingleFileAllocationIterator.cc +++ b/src/SingleFileAllocationIterator.cc @@ -38,24 +38,24 @@ #include "a2io.h" #define BUFSIZE (256*1024) +#define ALIGNMENT 512 SingleFileAllocationIterator::SingleFileAllocationIterator(BinaryStream* stream, int64_t offset, int64_t totalLength):_stream(stream), _offset(offset), _totalLength(totalLength), _buffer(0) { - if(_offset%512 == 0) { - _stream->enableDirectIO(); + if(_offset%ALIGNMENT != 0) { + _stream->disableDirectIO(); } } SingleFileAllocationIterator::~SingleFileAllocationIterator() { delete [] _buffer; - _stream->disableDirectIO(); } void SingleFileAllocationIterator::init() { #ifdef HAVE_POSIX_MEMALIGN - _buffer = (unsigned char*)Util::allocateAlignedMemory(512, BUFSIZE); + _buffer = (unsigned char*)Util::allocateAlignedMemory(ALIGNMENT, BUFSIZE); #else _buffer = new unsigned char[BUFSIZE]; #endif // HAVE_POSIX_MEMALIGN |