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2010-07-04 Tatsuhiro Tsujikawa <t-tujikawa@users.sourceforge.net>

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When allocating disk space, for Linux system with fallocate()
	system call, first check file system supports fallocate.  This
	just run fallocate with small chunk and see it succeeds or fails.
	If it succeeds, use fallocate() to allocate entire file otherwise
	fall back to traditional slower method: writing zeros. This
	behavior is enabled in --file-allocation=prealloc, so this is
	enabled by default for most modern Linux.
	* configure.ac
	* src/AbstractDiskWriter.cc
	* src/AbstractDiskWriter.h
	* src/AbstractSingleDiskAdaptor.cc
	* src/AdaptiveFileAllocationIterator.cc
	* src/AdaptiveFileAllocationIterator.h
	* src/DefaultPieceStorage.cc
	* src/DiskAdaptor.cc
	* src/DiskAdaptor.h
	* src/FallocFileAllocationIterator.cc
	* src/Makefile.am
	* src/MultiFileAllocationIterator.cc
	* src/OptionHandlerFactory.cc
	* test/FallocFileAllocationIteratorTest.cc
	* test/Makefile.am
This commit is contained in:
Tatsuhiro Tsujikawa 2010-07-04 15:03:35 +00:00
parent 8f10241e25
commit a5cc350dcf
20 changed files with 336 additions and 69 deletions
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4
test/FallocFileAllocationIteratorTest.cc
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@ -26,6 +26,9 @@ CPPUNIT_TEST_SUITE_REGISTRATION( FallocFileAllocationIteratorTest );
void FallocFileAllocationIteratorTest::testAllocate()
{
// When fallocate is used, test fails if file system does not
// support it. So skip it.
#ifndef HAVE_FALLOCATE
std::string dir = "./";
std::string fname = "aria2_FallocFileAllocationIteratorTest_testAllocate";
std::string fn = dir+"/"+fname;
@ -48,6 +51,7 @@ void FallocFileAllocationIteratorTest::testAllocate()
CPPUNIT_ASSERT(itr.finished());
CPPUNIT_ASSERT_EQUAL((uint64_t)40960, f.size());
#endif // !HAVE_FALLOCATE
}
} // namespace aria2