| 0121106d9dc1ba713b53822886355e4d9339e852 |
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28-Feb-2013 |
Joel Dice <joel.dice@gmail.com> |
Use longs instead of ints to store pointers in NIO buffers.
This allows the code to be used on 64-bit VMs.
Change-Id: I4d01bfcd0ffea528c6179687771d047fdcb4d18a
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| fe5da19e0e366286cd4d95f7628fe9442b9062c8 |
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27-Mar-2013 |
Elliott Hughes <enh@google.com> |
Simplify the nio Buffer implementations, and fix MappedByteBuffer.
* Fix the reported bug caused by delegation in the MappedByteBuffer
implementation.
* Collapse the three classes (ReadOnly*, ReadWrite*, and *) used
to implement most buffer types into one class each.
* Rename HeapByteBuffer to ByteArrayBuffer to match its companions.
* Remove BaseByteBuffer.
* Give the classes used to implement asXBuffer sane names (their
existing names were backwards).
Bug: https://code.google.com/p/android/issues/detail?id=53637
Change-Id: I2a7ff4f1d502564389615384324afadabccb04f9
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| 3b5eb93b0dc1d1a0109451cca56a618635485a67 |
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27-Mar-2013 |
Elliott Hughes <enh@google.com> |
Improve java.nio.Buffer.toString.
Bug: https://code.google.com/p/android/issues/detail?id=53637
Change-Id: I823662b39cb48b5f4456f4c58269324dfcdc2fd1
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| 126ab1b546c71137a97cef68cc89267e7f7be634 |
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28-Aug-2012 |
Elliott Hughes <enh@google.com> |
Improve nio IllegalArgumentException detail messages.
Bug: 7005326
Change-Id: Ibab8b776865dbed5da062cc683f834a79f068b32
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| e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7 |
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10-Jun-2011 |
Elliott Hughes <enh@google.com> |
Expose pread and pwrite.
And fix FileChannel to use them.
Bug: 4183719
Bug: 3107501
Change-Id: I51114a16522b93bf959b5953bec658e6889054c6
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| a28bc96d63595a77fa918da8ccdda50e9eaae95e |
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21-May-2011 |
Elliott Hughes <enh@google.com> |
Fix read/write bugs in DatagramChannel and SocketChannel.
Also improve some exception detail messages for ease of debugging.
These bugs were found by external/apache-harmony tests.
Change-Id: I37a58c1d1f1c2150eb9171967f47ef9644e8ae15
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| a1603838fe9e865575c87982e32c6343740e464c |
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11-Dec-2010 |
Elliott Hughes <enh@google.com> |
Lots more bounds-checking/exception-throwing consistency.
Overflow-safe checks all round, plus better detail messages. This isn't
quite everything, but it's a large chunk of the work. Most notably, this
is all of io and nio.
There are numerous changes of exception priority here, and the harmony
tests noticed a subset of them in the nio code. I've modified our checked-out
copy of the tests to accept any of the throwable exceptions.
Change-Id: Id185f1228fb9a1d5fc9494e78375b5623fb0fe14
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| 43a9f774d075e0e441d8b996e3f6c81ea483ec89 |
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19-Oct-2010 |
Elliott Hughes <enh@google.com> |
BufferIterator support for byte[].
Bug: 3032515
Change-Id: I040a92c3ce241aa97719ff94e3cc31c62473bf46
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| 8fbc397fc09158bee0bc0cb231c609c4c6e9fc15 |
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18-Sep-2010 |
Elliott Hughes <enh@google.com> |
Optimize non-direct (heap) buffer bulk put.
I've also factored out the bounds checking, even though the JIT can't yet
inline it back. I'm unwilling to duplicate all that code again.
This patch also fixes bugs in the previous checkin relating to offsets
and positions. In real life (and, seemingly, in all our tests) these tend
to be 0, making it rare that anyone trips over these bugs. (The first nio
change I made was fixing just such a bug.) I've improved the test I added
last time so that it covers more of these cases.
Here are the "after" performance figures for heap buffer bulk copies:
CharBuffer_getCharArray 5797
CharBuffer_putCharArray 5818
DoubleBuffer_getDoubleArray 13053
DoubleBuffer_putDoubleArray 13026
FloatBuffer_getFloatArray 8216
FloatBuffer_putFloatArray 8283
IntBuffer_getIntArray 8253
IntBuffer_putIntArray 8371
LongBuffer_getLongArray 13053
LongBuffer_putLongArray 13020
ShortBuffer_getShortArray 5796
ShortBuffer_putShortArray 5864
This compares well with with direct buffer performance (just gets shown here):
CharBuffer_getCharArray 4412
DoubleBuffer_getDoubleArray 11594
FloatBuffer_getFloatArray 6787
IntBuffer_getIntArray 6791
LongBuffer_getLongArray 11672
ShortBuffer_getShortArray 4430
Bug: 2985452
Change-Id: I37307f9b304c87a87af5313790444dcdf6174ff1
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| 6944bea4a129dc2d4be687c72f2a9f228ec532bc |
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17-Sep-2010 |
Elliott Hughes <enh@google.com> |
Make nio heap (non-direct) buffer bulk get orders of magnitude faster.
Bug: 2985452
Change-Id: I8bd210d1a623e434121f30eca6e2555e1aea11cd
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| 0c53cf8b2c46deb41e91db50ddc17d598cc64a10 |
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09-Sep-2010 |
Elliott Hughes <enh@google.com> |
Speed up MappedByteBuffer.
Make it possible to override limit(int) and position(int) internally, so I can
avoid updating MappedByteBufferAdapter's wrapped ByteBuffer's limit and
position on every get or put. I still need to do extra work with position if
you use the get/put overloads that don't take an index, but even that becomes
cheaper. The indexed overloads benefit the most, though. Before:
benchmark before after (both us)
ByteBuffer_getByte 830 757
ByteBuffer_getChar 940 875
ByteBuffer_getByte_indexed 800 509
ByteBuffer_getChar_indexed 936 643
Also factor out duplicated toString implementations.
Bug: 2935622
Change-Id: I4cfe206fde638bddb5a7b4a62223e2588f44b8ac
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| 934767b07d94041390785d8fe66c86b2379730bc |
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09-Sep-2010 |
Elliott Hughes <enh@google.com> |
Fix build (non-final _elementSizeShift).
Bug: 2935622
Change-Id: I5ff543b11e055a25676444d7ba9f0bb939544816
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| 0440837fd0013373ba3476283151299e7be9e5a3 |
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08-Sep-2010 |
Elliott Hughes <enh@google.com> |
Move the MemoryBlock up into java.nio.Buffer.
This lets me kill getBaseAddress and the (bogus) DirectBuffer interface.
Bug: 2935622
Change-Id: I51c758e7687a6cfa4a3a64ef089fb600b847b70f
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| 0f335c4ed1a0cb419c8ce82183fabb241d5dd032 |
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07-Sep-2010 |
Elliott Hughes <enh@google.com> |
Kill getEffectiveAddress.
Set the corresponding field in the constructors.
Requires a dalvikvm change: https://android-git.corp.google.com/g/64866
Bug: 2935622
Change-Id: I26663bfcdb80db75672be71395b861c1a79c24fc
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| 29dbfe19b113a13b712be2bc762ef1c81cd06c47 |
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03-Sep-2010 |
Elliott Hughes <enh@google.com> |
Use finalizers to free direct buffers.
Also switch to a cheaper scheme for avoiding double-frees (which could only
happen if library code is broken; at the moment the only caller is the
iovec-style stuff). This halves the cost of direct buffer access, at the
unimportant cost of not throwing an exception if we try to access a buffer
we freed while we still had a reference to it.
Also use named constants for the sizes of primitive types.
Also kill BufferFactory.
Bug: 2935622
Change-Id: I6021ce7531f49d8cff7635d6d2cc54851bacaf69
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| 162a12c1442641a95fe95859fa4e561b22db049f |
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25-May-2010 |
Elliott Hughes <enh@google.com> |
Remove @hide from Java 6 API.
I've left the two new spi packages @hidden, because I think we shouldn't
support them without convincing demand from developers (and I don't
believe there could be such a thing --- they just don't make sense, and
if we add anything, it should be the ability to provide extra ICU data).
Also fix a handful of javadoc syntax errors in Arrays.java and TreeMap.java.
Bug: 2497395
Change-Id: I4176b72daff0face4ed6c7ee1d1f4267d52006b4
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| f33eae7e84eb6d3b0f4e86b59605bb3de73009f3 |
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13-May-2010 |
Elliott Hughes <enh@google.com> |
Remove all trailing whitespace from the dalvik team-maintained parts of libcore.
Gentlemen, you may now set your editors to "strip trailing whitespace"...
Change-Id: I85b2f6c80e5fbef1af6cab11789790b078c11b1b
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| 3ff29eb11a241d58c54ecc84230bb0672f4aa148 |
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23-Apr-2010 |
Peter Hallam <peterhal@google.com> |
More merging of nio into luni
Change-Id: Ib4356b3cd57490df8ff246ea6a4bc1c269ba848b
|