Commit Graph

4296 Commits

Author SHA1 Message Date
Trustin Lee
337f5bbb8e Automatic diagnosis of resource leaks
Now that we are going to use buffer pooling by default, it is obvious
that a user will forget to call .free() and report memory leak. In this
case, we should have a tool to determine if it is a bug in our allocator
implementation or in the user's code.

This pull request adds a system property flag called
'io.netty.resourceLeakDetection'. If set, when a user forgets to call
.free(), the ResourceLeakDetector will detect it and log a message with
detailed stack trace to tell where the leaked buffer has been allocated.

Because obtaining stack trace is an expensive operation, I used sampling
technique. Allocation is recorded only for every 113th allocation. I
chose 113 because it's a prime number.

In production, a user might not want to enable this option due to
potential performance impact. If a user does not specify the
'-Dio.netty.resourceLeakDetection' option leak detection is disabled.

Even if the leak detection is enabled, the overhead should be less than
5% because only ~1% of allocations are monitored.

I also replaced SharedResourceMisuseDetector with ResourceLeakDetector.
2013-01-15 14:15:27 +09:00
Norman Maurer
201df99ee0 Rename from io.netty.transport.* to io.netty.channel.* 2013-01-14 21:34:58 +01:00
Jestan Nirojan
983a70805c Moved sctp transport classes from io.netty.channel.socket.sctp to it's own subpackage io.netty.channel.sctp 2013-01-14 21:27:49 +01:00
Jeff Pinner
c20d875817 Merge pull request #934 from jpinner/fix_spdy_regression_master
SPDY: fix regression in SpdyFrameDecoder.decodeHeaderBlock()
2013-01-14 10:59:54 -08:00
Jeff Pinner
f75b6b142c SPDY: fix regression in SpdyFrameDecoder.decodeHeaderBlock() 2013-01-14 10:58:03 -08:00
Trustin Lee
1354b4a1ac SPDY: allow empty header values in SPDY/3
Ported from 3
2013-01-14 22:59:11 +09:00
Trustin Lee
57153079a5 Chrome requires the :version: header in SPDY_SESSION_PUSHED_SYN_STREAM frames otherwise it issues a HTTP_TRANSACTION_SPDY_SEND_REQUEST_HEADERS and a SPDY_STREAM_ERROR saying "HEADERS incomplete headers, but pending data frames."
Ported from 3
2013-01-14 22:37:05 +09:00
Trustin Lee
573a723dc2 Fix a bug where ChannelPIpeline.remove/replace() fails when its channel is not registered yet 2013-01-14 21:50:08 +09:00
Trustin Lee
e263769a55 Fix a bug where the buffers are freed too early when a handler is removed or replaced 2013-01-14 21:43:45 +09:00
Trustin Lee
a03bc6ea1d Fix a bug where freeInbound/OutboundBuffer() is not called when a handler is removed from a pipeline. 2013-01-14 20:54:12 +09:00
Jestan Nirojan
49bf02ce09 [#929] Implemented multi-homing opertions in SctpServerChannels and SCTP Javadocs cleanup 2013-01-13 20:52:02 +01:00
Norman Maurer
eb91a6d4e6 [#924] [#914] Fix high CPU usage which was caused because the OP_CONNECT flag was not cleared after the connect was complete 2013-01-11 19:42:21 +01:00
Trustin Lee
04bae9bceb Use sun.misc.Unsafe to access a direct ByteBuffer
- Add PooledUnsafeDirectByteBuf, a variant of PooledDirectByteBuf, which
  accesses its underlying direct ByteBuffer using sun.misc.Unsafe.
- To decouple Netty from sun.misc.*, sun.misc.Unsafe is accessed via
  PlatformDependent.
- This change solely introduces about 8+% improvement in direct memory
  access according to the tests conducted as described in #918
2013-01-11 16:25:12 +09:00
Norman Maurer
e564157381 Fix one checkstyle and one compile error caused by the last commit 2013-01-11 07:45:22 +01:00
Norman Maurer
75b2dd592a Merge branch 'master' of github.com:netty/netty 2013-01-11 07:33:54 +01:00
Trustin Lee
64ae8b6a37 Replace and merge DetectionUtil and DirectByteBufUtil into PlatformDependent and PlatformDependent0
PlatformDependent delegates the operations requires sun.misc.* to PlatformDependent0 to avoid runtime errors due to missing sun.misc.* classes.
2013-01-11 14:03:27 +09:00
Trustin Lee
896bbb67b6 Use sun.misc.Unsafe to access a direct buffer if possible 2013-01-10 21:30:11 +01:00
Norman Maurer
5b5b39a606 [#916] Only access Cleaner if it is really present to prevent errors on android 2013-01-10 20:03:54 +01:00
Trustin Lee
bfa3445bb3 Remove netty-metrics-yammer from example dependencies
.. because it pulls SLF4J as a runtime dependency
2013-01-11 00:38:36 +09:00
Trustin Lee
f7a076e0ea Clean up netty-metrics-yammer pom.xml 2013-01-11 00:16:06 +09:00
Trustin Lee
366c6c86dc Remove redundant dependency version 2013-01-11 00:14:21 +09:00
Trustin Lee
8975406b86 Ensure the outbound buffer is not freed on write completion
- Fixes #919
2013-01-10 21:05:51 +09:00
Norman Maurer
ec5ad7b22c [#921] Fix NPE which can be thrown on bad-timing when using WebSocketClientHandshaker07 2013-01-10 12:40:27 +01:00
Trustin Lee
5bd8b41a58 Use Number.reverseBytes() instead of custom impl 2013-01-10 18:47:21 +09:00
Trustin Lee
340da3e97b Fix infinite recursion 2013-01-10 18:43:20 +09:00
Trustin Lee
753d0bfbae Remove the memory option previously added to avoid OOME
We don't see OOME anymore
2013-01-10 16:25:41 +09:00
Trustin Lee
665d022e82 Use a heap buffer from the allocator because it doesn't seem to cause OOME anymore 2013-01-10 16:23:40 +09:00
Trustin Lee
3fe9a58f41 Fix checkstyle 2013-01-10 15:35:36 +09:00
Trustin Lee
eb337ff5a7 Fix various inspection warnings 2013-01-10 15:23:58 +09:00
Trustin Lee
3c9d912355 Use InetSocketAddress wherever possible / Tighten the return type of Channel.parent() 2013-01-10 14:17:54 +09:00
Trustin Lee
793a571465 Fix a runtime type cast exception when calling RxtxChannel.local/remoteAddress() 2013-01-10 14:01:17 +09:00
Trustin Lee
b5e6350bcb Fix compiler warning 2013-01-10 13:55:15 +09:00
Trustin Lee
8cba765463 Indentation 2013-01-10 13:28:09 +09:00
Trustin Lee
4528c793ba Fix naming issues in RxtxChannelConfig / Format cleanup 2013-01-10 13:24:36 +09:00
Trustin Lee
0c3732cad5 Fix invalid module name format 2013-01-10 13:14:36 +09:00
Luke Wood
c094abad7b [#561] [#912] Add Rxtx transport 2013-01-09 21:32:51 +01:00
Trustin Lee
d5a7057c3f Fix inconsistent module name 2013-01-09 23:37:10 +09:00
Trustin Lee
7755a82674 Revert mistakenly committed test change 2013-01-09 21:29:41 +09:00
Trustin Lee
137f29ba65 Do not read if a channel is inactive 2013-01-09 21:28:31 +09:00
Trustin Lee
46e364e7b7 Remove unnecessary parameters 2013-01-09 20:36:16 +09:00
Trustin Lee
b9352ded13 Fix a bug where prev/next context is not always set 2013-01-09 20:34:22 +09:00
Trustin Lee
8586d43b23 Fix DefaultChannelPipeline.toString() / Remove unnecessary conditions 2013-01-09 19:16:09 +09:00
Trustin Lee
b6fcf3acc4 Simplify DefaultChannelPipeline 2013-01-09 19:13:43 +09:00
Norman Maurer
b742dcc209 [#902] Remove usage of generics for output of Encoder/Decoder to make them more flexible again 2013-01-09 07:13:31 +01:00
Trustin Lee
5d2e0688ab Fix checkstyle 2013-01-09 15:12:25 +09:00
Trustin Lee
5c2be33cae Delegate to the actual encoder/decoder if possible 2013-01-09 15:09:20 +09:00
Trustin Lee
102563ec8f No need to override ByteToMessageCodec.decoder.discardInboundReadBytes() 2013-01-09 15:05:03 +09:00
Trustin Lee
ef692b0c38 Add missing decodeLast() 2013-01-09 14:58:44 +09:00
Trustin Lee
b58a8f0106 Add missing codec operations in ByteToMessageCodec 2013-01-09 14:56:07 +09:00
Trustin Lee
4a3d73724f Make all encoder/decoder methods overridable in MessageToMessageCodec 2013-01-09 14:44:19 +09:00