diff options
| author | Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com> | 2007-11-28 14:22:28 +0000 |
|---|---|---|
| committer | Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com> | 2007-11-28 14:22:28 +0000 |
| commit | 5a2f398eca68b2b0330ddcec2b222bf76875f82f (patch) | |
| tree | eb916885f04126e7e48b56fe02de6b44f0493c17 /src/version_usage.cc | |
| parent | a022a1826bb573028f264bc6edbc564c0d488bbc (diff) | |
2007-11-28 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com>
Added direct I/O support. The current implementation uses O_DIRECT,
which is not posix standard and is tested on linux 2.6.21.
Currently only file allocation uses direct I/O.
* src/SingleFileAllocationIterator.{h, cc}
* test/SingleFileAllocationIteratorTest.cc
* src/MultiFileAllocationIterator.{h, cc}
* test/MultiFileAllocationIteratorTest.cc
* src/BinaryStream.h
* src/DiskWriter.h
* src/AbstractDiskWriter.{h, cc}
* src/ByteArrayDiskWriter.h
* src/DiskAdaptor.h
* src/AbstractSingleDiskAdaptor.{h, cc}
* src/MultiDiskAdaptor.{h, cc}
* src/FileAllocationEntry.cc
* src/Util.{h, cc}
* src/OptionHandlerFactory.cc
* src/prefs.h
* src/version_usage.cc
* src/option_processing.cc
Moved FileAllocationMan::markCurrentFileAllocationEntryDone() to
handleException.
* src/MultiFileAllocationIterator.cc
Added EINTR handling
* src/SocketCore.cc
Diffstat (limited to 'src/version_usage.cc')
| -rw-r--r-- | src/version_usage.cc | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/src/version_usage.cc b/src/version_usage.cc index 4a30a268..0775a846 100644 --- a/src/version_usage.cc +++ b/src/version_usage.cc @@ -33,6 +33,7 @@ */ /* copyright --> */ #include "common.h" +#include "a2io.h" #include "FeatureConfig.h" #ifdef ENABLE_MESSAGE_DIGEST # include "messageDigest.h" @@ -161,9 +162,15 @@ void showUsage() { " Default: prealloc") << endl; cout << _(" --no-file-allocation-limit=SIZE No file allocation is made for files whose\n" " size is smaller than SIZE.\n" - " You can append K or M(1K = 1024, 1M = 1024K).\n" - " BitTorrent downloads ignore this option.\n" - " Default: 5M") << endl; + " You can append K or M(1K = 1024, 1M = 1024K).") << "\n" + << DEFAULT_MSG << "5M" << "\n"; +#ifdef ENABLE_DIRECT_IO + cout << _(" --enable-direct-io[=true|false] Enable directI/O, which lowers cpu usage while\n" + " allocating files.\n" + " Turn off if you encounter any error") << "\n" + " Tested in Linux 2.6.21" << "\n" + << DEFAULT_MSG << "false" << "\n"; +#endif // ENABLE_DIRECT_IO cout << _(" --allow-overwrite=true|false If false, aria2 doesn't download a file which\n" " already exists but the corresponding .aria2 file\n" " doesn't exist.\n" |