Commit Graph

8275 Commits

Author SHA1 Message Date
Norman Maurer
2a376eeb1b [maven-release-plugin] prepare for next development iteration 2017-07-06 13:24:06 +02:00
Norman Maurer
c7f8168324 [maven-release-plugin] prepare release netty-4.1.13.Final 2017-07-06 13:23:51 +02:00
Nikolay Fedorovskikh
016e00bf7a Clarify the appointment of the intermediate collection
Motivation:

An intermediate list is creating in the `EpollEventLoop#closeAll` to prevent ConcurrentModificationException. But this is not the obvious purpose has no comment.

Modifications:

Add comment to clarify the appointment of the intermediate collection.

Result:

More clear code.
2017-07-05 20:44:11 -04:00
Scott Mitchell
d3581b575e UnixResolverDnsServerAddressStreamProvider should allow for empty /etc/resolver dir
Motivation:
UnixResolverDnsServerAddressStreamProvider currently throws an exception if /etc/resolver exists but it empty. This shouldn't be an exception and can be tolerated as if there is no contribution from /etc/resolver.

Modifications:
- Treat /etc/resolver as present and empty the same as not being present

Result:
UnixResolverDnsServerAddressStreamProvider initialization can tolerate empty /etc/resolver directory.
2017-07-05 20:14:27 -04:00
Scott Mitchell
d040c939e5 UnixResolverDnsServerAddressStreamProviderTest failure
Motivation:
InetSocketAddress#getHostName() may attempt a reverse lookup which may lead to test failures because the expected address will not match.

Modifications:
- Use InetSocketAddress#getHostString() which will not attempt any lookups and instead return the original String

Result:
UnixResolverDnsServerAddressStreamProviderTest is more reliable.
2017-07-05 14:45:04 -04:00
Scott Mitchell
4d51eca218 SslHandlerTest#testCompositeBufSizeEstimationGuaranteesSynchronousWrite debug info
Motivation:
SslHandlerTest#testCompositeBufSizeEstimationGuaranteesSynchronousWrite has been observed to fail on CI servers. Knowing how many bytes were seen by the client would be helpful.

Modifications:
- Add bytesSeen to the exception if the client closes early.

Result:
More debug info available.
2017-07-05 14:06:02 -04:00
Norman Maurer
c318fc7cea Remove not needed intermediate collection while reading DatagramPackets in native transports
Motivation:

We used an intermediate collection to store the read DatagramPackets and only fired these through the pipeline once wewere done with the reading loop. This is not needed and can also increase memory usage.

Modifications:

Remove intermediate collection

Result:

Less overhead and possible less memory usage during read loop.
2017-07-05 18:20:05 +02:00
Scott Mitchell
6d80c641e9 DNS Resolver should be more consistent with JDK resolution
Motivation:
If there are multiple DNS servers to query Java's DNS resolver will attempt to resolve A and AAAA records in sequential order and will terminate with a failure once all DNS servers have been exhausted. Netty's DNS server will share the same DnsServerAddressStream for the different record types which may send the A question to the first host and the AAAA question to the second host. Netty's DNS resolution also may not progress to the next DNS server in all situations and doesn't have a means to know when resolution has completed.

Modifications:
- DnsServerAddressStream should support new methods to allow the same stream to be used to issue multiple queries (e.g. A and AAAA) against the same host.
- DnsServerAddressStream should support a method to determine when the stream will start to repeat, and therefore a failure can be returned.
- Introduce SequentialDnsServerAddressStreamProvider for sequential use cases

Result:
Fixes https://github.com/netty/netty/issues/6926.
2017-07-05 09:10:59 -04:00
Scott Mitchell
449befa003 Workaround IBM's J9 JVM getSupportedCipherSuites() returning SSL_ prefix cipher names
Motivation:
IBM's J9 JVM utilizes a custom cipher naming scheme with SSL_ prefix [1] instead of the TLS_ prefix defined by TLS RFCs and the JSSE cihper suite names [2]. IBM's documentation says that the SSL_ prefix are "interchangeable" with cipher names with the TLS_ prefix [1]. To work around this issue we parse the supported cipher list and see an SSL_ prefix we can also add the same cipher with the TLS_ prefix. For more details see a discussion on IBM's forums [3] and IBM's issue tracker [4].

[1] https://www.ibm.com/support/knowledgecenter/en/SSYKE2_8.0.0/com.ibm.java.security.component.80.doc/security-component/jsse2Docs/ciphersuites.html
[2] http://docs.oracle.com/javase/8/docs/technotes/guides/security/StandardNames.html#ciphersuites
[3] https://www.ibm.com/developerworks/community/forums/html/topic?id=9b5a56a9-fa46-4031-b33b-df91e28d77c2
[4] https://www.ibm.com/developerworks/rfe/execute?use_case=viewRfe&CR_ID=71770

Modifications:
- When parsing the supported cipher list to get the supported ciphers and we encounter a SSL_ prefix we should also add a TLS_ prefix cipher.
- Remove SSL_ prefix ciphers from Http2SecurityUtil.

Result:
Work around for IBM JVM's custom naming scheme covers more cases for supported cipher suites.
2017-07-05 09:05:42 -04:00
Nikolay Fedorovskikh
1ba265ad4d AbstractMethodError with barchart-udt
Motivation:

`SocketChannelUDT` from barchart-udt does not have the java 7 `public abstract SocketChannel bind(SocketAddress local)` method. Calling the abstract method `SocketChannel.bind(SocketAddress localAddress)` for `SocketChannelUDT` leads to an `AbstractMethodError` runtime error.

Modifications:

Make workaround with explicit call of `SocketChannelUDT.bind(SocketAddress local)` as it done in `NioUdtByteConnectorChannel`.

Result:

Fixes [#6934].
2017-07-05 07:35:32 +02:00
Norman Maurer
91b62da8c1 Remove @deprecation keyword on AbstractUnsafe.ensureOpen(...)
Motivation:

e845670043 marked AbstractUnsafe.ensureOpen(...) as deprecated for no reason.

Modifications:

Remove `@deprecation`

Result:

Remove incorrect annotation
2017-06-29 14:28:55 +02:00
Scott Mitchell
1df8f2ccd1 KQueue crash due to close/cleanup sequencing
Motivation:
The kqueue documentation states that 'Calling close() on a file descriptor will remove any kevents that reference the descriptor.' [1], but doesn't mention if this cleanup will be done synchronously. Under some circumstances it has been observed that cleanup was not done immediately and when KQueueEventLoop attempted to access the channel associated with the event the JVM would crash, a ClassCastException, or generally undefined behavior would occur because of invalid pointer references.

[1] https://www.freebsd.org/cgi/man.cgi?query=kqueue&sektion=2

Modifications:
- AbstractKqueueChannel#doClose should not rely upon this assumption and instead should call doDeregister() to ensure cleanup is done synchronously.
- Deleting a kevent should also set the jniSelfPtr stored in the udata of that kevent to NULL, to ensure we will not dereference it later.

Result:
No more kqueue crash due to close/cleanup sequencing.
2017-06-28 17:34:19 -04:00
Nikolay Fedorovskikh
8d0e0922a5 SocksCmdRequest and SocksCmdResponse are trying to convert host from IDN for the non-DOMAIN address types
Motivation:

In the SocksCmdRequest and SocksCmdResponse constructors a host param converts from IDN to ascii compatible form regardless address type.

Modifications:

Use `IDN#toASCII` only for `DOMAIN` address type.

Result:

More correct host handling in socks commands.
2017-06-28 20:34:45 +02:00
Nikolay Fedorovskikh
f35047765f Avoid a double check ByteBuf#ensureWritable in ByteBufUtil
Motivation:

Methods `ByteBufUtil#writeUtf8` and `ByteBufUtil#writeAscii` contains a check `ByteBuf#ensureWritable` before the calling `ByteBuf#writeBytes`. But the `ByteBuf#writeBytes` also do a such check inside.

Modifications:

Make checks more targeted.

Result:

Less redundant method calls.
2017-06-28 19:00:01 +02:00
Norman Maurer
b7a5743e8b Return the correct Future from FixedChannelPool.release()
Motivation:

The behaviour of the FixedChannelPool.release was inconsistent with the
SimpleChannelPool implementation, in that given promise is returned.

In the FixedChannelPool implementation a new promise was return and
this meant that the completion of that promise can be different.
Specifically on releasing a channel to a closed pool, the parameter
promise is failed with an IllegalStateException but the returned one
will have been successful (as it was completed by call to super
.release)

Modification:

Return the given promise as the result of FixedChannelPool.release

Result:

Returned promise will reflect the result of the release operation.
2017-06-28 18:57:10 +02:00
Norman Maurer
32b3f58f63 Close channels that are released to a closed FixedChannelPool.
Motivation:

Channels returned to a FixedChannelPool after closing it remain active.

Since channels that where acquired from the pool are not closed during the close operation, they remain open even after releasing the channel back to the pool where they are then in accessible and become in-effect a connection leak.

Modification:

Close the released channel on releasing back to a closed pool.

Result:

Much harder to create a connection leak by closing an active
FixedChannelPool instance.
2017-06-28 18:50:51 +02:00
Scott Mitchell
bc46a99eaa DefaultHttp2ConnectionEncoder#writeHeaders shouldn't send GO_AWAY if stream is closed
Motivation:
DefaultHttp2ConnectionEncoder#writeHeaders attempts to find a stream object, and if one doesn't exist it tries to create one. However in the event that the local endpoint has received a RST_STREAM frame before writing the response headers we attempt to create a stream. Since this stream ID is for the incorrect endpoint we then generate a GO_AWAY for what appears to be a protocol error, but can instead be failed locally.

Modifications:
- Just fail the local promise in the above situation instead of sending a GO_AWAY

Result:
Less severe consequences if the server asynchronously sends headers after a RST_STREAM has been received.
Fixes https://github.com/netty/netty/issues/6906.
2017-06-28 12:06:00 -04:00
Scott Mitchell
07a641900c transport-native-kqueue libraries should not lazy link
Motivation:
We rely upon the linker being non-lazy to test compatibility the native library compatibility for kqueue, but the default mode of operation is to lazy link.

Modifications:
- We should modify the build scripts to inform the linker that this library should not be lazy linked
- Error messages changes
dyld: lazy symbol binding failed: Symbol not found: _clock_gettime

java.lang.UnsatisfiedLinkError: unsupported JNI version 0xFFFFFFFF required by .../libnetty-transport-native-kqueue.dylib

Result:
Link errors are detected upon library load time.
2017-06-28 11:47:16 -04:00
Scott Mitchell
d3c44ef985 Update Http2SecurityUtil cipher suites
Motivation:
Mozilla's Server Side cipher suite recommendations have been updated [1].

[1] https://wiki.mozilla.org/Security/Server_Side_TLS#Modern_compatibility

Modifications:
- Update Http2SecurityUtil to exclude older ciphers.
- Remove support for DHE ciphersuites because they are now Intermediate and BoringSSL dropped support for these ciphers [2]

[2] https://boringssl.googlesource.com/boringssl/+/7e06de5d2d1b53c57c0c81e8d6ba4122b64cf626

Result:
Updated default ciphers for HTTP/2.
2017-06-28 11:40:28 -04:00
Norman Maurer
773757f2dd Introduce EpollSocketChannelConfig.setTcpKeepCnt as replacement for setTcpKeepCntl.
Motivation:

We had a typo in the method name of the EpollSocketChannelConfig.

Modifications:

Deprecate old method and introduce a new one.

Result:

Fixes [#6909]
2017-06-28 07:43:59 +02:00
Dmitriy Dumanskiy
dd69a813d4 Performance improvement for HttpRequestEncoder. Insert char into the string optimized.
Motivation:

Right now HttpRequestEncoder does insertion of slash for url like http://localhost?pararm=1 before the question mark. It is done not effectively.

Modification:

Code:

new StringBuilder(len + 1)
                .append(uri, 0, index)
                .append(SLASH)
                .append(uri, index, len)
                .toString();
Replaced with:

new StringBuilder(uri)
                .insert(index, SLASH)
                .toString();
Result:

Faster HttpRequestEncoder. Additional small test. Attached benchmark in PR.

Benchmark                                      Mode  Cnt        Score        Error  Units
HttpRequestEncoderInsertBenchmark.newEncoder  thrpt   40  3704843.303 ±  98950.919  ops/s
HttpRequestEncoderInsertBenchmark.oldEncoder  thrpt   40  3284236.960 ± 134433.217  ops/s
2017-06-27 10:53:43 +02:00
Norman Maurer
3b5dd4e9dc Change type of X_FRAME_OPTIONS and CONTENT_SECURITY_POLICY to AsciiString as a followup to cc1a209185 2017-06-27 08:37:46 +02:00
Nikolay Fedorovskikh
ba3616da3e Apply appropriate methods for writing CharSequence into ByteBuf
Motivation:

1. `ByteBuf` contains methods to writing `CharSequence` which optimized for UTF-8 and ASCII encodings. We can also apply optimization for ISO-8859-1.
2. In many places appropriate methods are not used.

Modifications:

1. Apply optimization for ISO-8859-1 encoding in the `ByteBuf#setCharSequence` realizations.
2. Apply appropriate methods for writing `CharSequences` into buffers.

Result:

Reduce overhead from string-to-bytes conversion.
2017-06-27 07:58:39 +02:00
Carl Mastrangelo
322fe8ec85 Exhaust non-exhaustive switch cases
Motivation:
ErrorProne warns about missing cases in switch statements that
appear as an oversight.

Modifcation:
Add the last case to statement to ensure all cases are covered.

Result:
Able to enable Error Prone static analysis
2017-06-27 07:56:41 +02:00
Norman Maurer
cc1a209185 Add content-security-policy and x-frame-options to HttpHeaderNames
Motivation:

These headers can be used to prevent clickjacking.

Modifications:

Add static fields for content-security-policy and x-frame-options

Result:

Expose general useful names
2017-06-27 07:55:25 +02:00
Norman Maurer
42789d43de Upgrade to netty-tcnative 2.0.5.Final 2017-06-25 19:03:33 +02:00
tonyshenkk
c8a23028ad fix UnixChannelUtil#isBufferCopyNeededForWrite
fix not execute unit test in transport-native-unix-common-tests module

Motivation:

- Commit 047da11 introduced an bug for still copy byteBuf for composed of n(n <= IOV_MAX) NIO direct buffers
- Commit 3c4dfed add UnixChannelUtilTest in transport-native-unix-common-tests module, but not execute in maven compile

as issue #6825, #6870

Modifications:

- modified UnixChannelUtil#isBufferCopyNeededForWrite(ByteBuf), and UnixChannelUtilTest
- move UnixChannelUtilTest into transport-native-unix-common module, and add packet scope method UnixChannelUtil#isBufferCopyNeededForWrite(ByteBuf, int)

Result:

- no copy byteBuf for composed of n(n <= IOV_MAX) NIO direct buffers
- auto execute unit tests in UnixChannelUtilTest and it is easier to mock IOV_MAX
2017-06-24 21:27:54 -07:00
Scott Mitchell
efe37e0d28 UnknownHostException should mention search domain if used
Motivation:
ba80fbbe05 modified the UnknownHostException to not include the search domain if the DNS query failed, but this masks what DNS query actually failed. Have the full hostname (including the search domain) provides more visibility and may help diagnose a configuration error if queries are unexpectedly failing.

Modifications:
- Remove DnsNameResolverContext#pristineHostname

Result:
UnknownHostException is more accurate and reflect what hostname actually resulted in failure.
2017-06-23 16:44:07 -07:00
Nikolay Fedorovskikh
d672a5a483 Optimizations in QueryStringEncoder
Motivation:

A life cycle of QueryStringEncoder is simple: create, append params, convert to String. Current realization collect params in the list, and calculate an URI string in `toString` method. We can simplify this: don't store params to the list, and immediately append parameters to the `StringBuilder`.

Modifications:

- Remove list for params and remove a tuple class `Param`.
- Use one common `StringBuilder` and append parameters into it.
- Resolve `TODO` in the `encodeParam` method.

Result:

Less allocations (no `ArrayList`, no `Param` tuples). Second `toString` call is faster.
2017-06-23 14:03:32 -07:00
Carl Mastrangelo
83de77fbe5 Make Native loading work better with Java 8
Motivation:
Enable static linking for Java 8.  These commits are the same as those introduced to netty tcnative.  The goal is to allow lots of JNI libraries to be statically linked together without having conflict `JNI_OnLoad` methods.

Modification:
* add JNI_OnLoad suffixes to enable static linking
* Add static names to the list of libraries that try to be loaded
* Enable compiling with JNI 1.8
* Sort includes

Result:
Enable statically linked JNI code.
2017-06-23 19:42:13 +02:00
Nikolay Fedorovskikh
c3bd1245c5 SocksCommonUtils cleanup
Motivation:

1. Internal class `SocksCommonUtils` contains a method `intToIp` that also exists in the `NetUtil`.
2. A `SocksCommonUtils#ipv6toCompressedForm` is never used.

Modifications:

1. Replace `intToIp` method usage with `NetUtil#intToIpAddress`.
2. Remove unused methods from `SocksCommonUtils`.

Result:

Less code for supports.
2017-06-23 19:04:03 +02:00
Nikolay Fedorovskikh
01eb428b39 Move methods for decode hex dump into StringUtil
Motivation:

PR #6811 introduced a public utility methods to decode hex dump and its parts, but they are not visible from netty-common.

Modifications:

1. Move the `decodeHexByte`, `decodeHexDump` and `decodeHexNibble` methods into `StringUtils`.
2. Apply these methods where applicable.
3. Remove similar methods from other locations (e.g. `HpackHex` test class).

Result:

Less code duplication.
2017-06-23 18:52:42 +02:00
Scott Mitchell
1767814a46 Replace DnsNameResolverContext#trace special code with an implementation of DnsQueryLifecycleObserver
Motivation:
DnsQueryLifecycleObserver is designed to capture the life cycle of every query. DnsNameResolverContext has a custom trace mechanism which consists of a StringBuilder and manual calls throughout the class. We can remove some special case code in DnsNameResolverContext and instead use a special implementation of DnsQueryLifecycleObserver when trace is enabled.

Modifications:
- Remove all references to the boolean trace variables in DnsNameResolverContext and DnsNameResolver
- Introduce TraceDnsQueryLifecycleObserver which will be used when trace is enabled and will log similar data as what trace currently provides

Result:
Less special case code in DnsNameResolverContext and instead delegate to TraceDnsQueryLifecycleObserver to capture trace information.
2017-06-23 09:04:59 -07:00
Scott Mitchell
1df722f65b kqueue version of 7baef4fbe8 2017-06-23 08:23:40 -07:00
Norman Maurer
58386aea43 Upgrade to netty-tcnative 2.0.4.Final 2017-06-23 13:43:51 +02:00
Carl Mastrangelo
cbde38f6e9 Add cause to thrown exception in SelfSignedCert
Motivation:
Exceptions with causes are easier to debug

Modification:
Add the cause when generating a SelfSignedCert

Results:
More debugging context
2017-06-23 07:24:11 +02:00
Carl Mastrangelo
7baef4fbe8 Move "fallthrough" statement to where fall actually happens Motivation: Static analysis looks for error prone switch case statements. Accidental fall through is one such case, but it is sometimes intentional. To indicate this, the "//fallthrough" comment can be added before the fall.
The code in question has this comment, but it is *after* the fall
so the static analysis flags it.

This is described in http://errorprone.info/bugpattern/FallThrough

Modifications:
Move fall through comment to where the fall actually occurs

Result:
More compatible with Error Prone tools
2017-06-23 07:22:47 +02:00
Carl Mastrangelo
b985615522 Fix compiler warnings in netty Epoll and unix common
Motivation:
Google requires stricter compilation by adding -Werror and enabling many other warnings.

Modification:

* fix warning caused by -Wmissing-braces

* Use the address of `sendmmsg` rather than the function itself when
checking for presence.  This resovles the warning caused by
`-Wpointer-bool-conversion`.

More detail:
When compiling on Linux, `sendmmsg` is always present, so the
function is always nonnull.  When compiling elsewhere, the
function is defined as `__attribute__((weak))` which means it
may be absent at link time.  This is controlled by
`IO_NETTY_SENDMMSG_NOT_FOUND`, which is off by default.

The reason for the error is due to the risk of accidentally not
calling the function.  By adding `&` before the function, there
is no ambiguity.  (the result of the fn call cannot have its
address taken.)

* use != to check for sendmmsg

Result:
Easier compilation.
2017-06-23 07:19:46 +02:00
Jason Tedor
9ad74e72e6 Remove content-length header leniency
Motivation:

If the content-length does not parse as a number, leniency causes this
to instead be parsed as the default value. This leads to bodies being
silently ignored on requests which can be incredibly dangerous. Instead,
if the content-length header is invalid, an exception should be thrown
for upstream handling.

Modifications:

This commit removes the leniency in parsing the content-length header by
allowing a number format exception, if thrown, to escape from the method
rather than falling back to the default value.

Result:

In invalid content-length header will not be silently ignored.
2017-06-22 09:20:11 -07:00
Scott Mitchell
6cd086050f DNS Resolver Search Domain Bugs
Motivation:
The DNS resolver supports search domains. However the ndots are not correctly enforced. The search domain should only be appended under the following scenario [1]:

> Resolver queries having fewer than ndots dots (default is 1) in them will be attempted using each component of the search path in turn until a match is found.

The DNS resolver current appends the search domains if ndots is 0 which should never happen (because no domain can have less than 0 dots).

[1] https://linux.die.net/man/5/resolv.conf

Modifications:
- Parse /etc/resolv.conf to get the default value for ndots on Unix platforms
- The search domain shouldn't be used if ndots is 0
- Avoid failing a promise to trigger the search domain queries in DnsNameResolverContext#resolve

Result:
More correct usage of search domains in the DNS resolver.
Fixes https://github.com/netty/netty/issues/6844.
2017-06-22 00:05:43 -07:00
Scott Mitchell
5934ae8fd2 Http2FrameLogger Updates
Motivation:
The Http2FrameLogger uses a custom format when logging events. We should use the more familiar format of 'channel event type: details' and single line logging for more consistent debugging.

Modifications:
- Http2FrameLogger should not use a StringBuilder and instead should directly use the Logger
- Http2FrameLogger should use the more consistent format defined above

Result:
Http2FrameLogger's logging formate is more consistent with other log events.
2017-06-21 17:12:38 -07:00
Nikolay Fedorovskikh
8f8be31226 Remove unnecessary conversions
Motivation:

In a `HttpConversionUtil#toHttp2Headers` a status code conversion can be replaced with using `HttpResponseStatus#codeAsText` method.

Modifications:

Apply `HttpResponseStatus#codeAsText` method.

Result:

Less allocations.
2017-06-21 21:53:48 +02:00
Scott Mitchell
6b25909f6b HTTP/2 HelloWorld clear text NPE
Motivation:
HelloWorldHttp2Handler throws a NPE when converting from HTTP/1.x headers to HTTP/2 headers because there is no Host header.

Modifications:
- HelloWorldHttp2Handler should check if the Host header is present before setting it in the HTTP/2 headers

Result:
No more NPE in HelloWorldHttp2Handler.
2017-06-21 06:55:28 +02:00
Norman Maurer
568fa998b1 Deploy transport-native-unix-common-tests
Motivation:

To be able to easily build only one of the native sub-modules its needed that all the dependencies can be fetched from maven. At the moment we dont deploy transport-native-unix-common and so an attempt to just build for example the native epoll transport fails with:

[ERROR] Failed to execute goal on project netty-transport-native-epoll: Could not resolve dependencies for project io.netty:netty-transport-native-epoll:jar:4.1.13.Final-SNAPSHOT: Could not find artifact io.netty:netty-transport-native-unix-common-tests:jar:4.1.13.Final-SNAPSHOT in sonatype-nexus-snapshots (https://oss.sonatype.org/content/repositories/snapshots) -> [Help 1]

Modifications:

Deploy jar

Result:

All dependencies on maven repository.
2017-06-21 06:52:18 +02:00
Scott Mitchell
6d029ad3ac OpenSSL CHACHA20 CipherSuiteConverter updates
Motivation:
For historical reasons OpenSSL's internal naming convention for CHACHA20 based cipher suites does not include the HMAC algorithm in the cipher name. This will prevent the CHACHA20 cipher suites from being used if the RFC cipher names are specified.

Modifications:
- Add a special case for CHACHA20 cipher name conversions in CipherSuiteConverter
- Update OPENSSL_CIPHERSUITE_PATTERN to accommodate the new naming scheme for CHACHA20 cipher suites

Result:
CipherSuiteConverter now works with CHACHA20 cipher suites.
2017-06-21 06:50:43 +02:00
Dmitriy Dumanskiy
81f9434ec7 Added test for multi header, HttpObjectDecoder performance improvement for multi header, removed empty else block.
Motivation:

For multi-line headers HttpObjectDecoder uses StringBuilder.append(a).append(b) pattern that could be easily replaced with regular a + b. Also oparations with a and b moved out from concat operation to make it friendly for StringOptimizeConcat optimization and thus - faster.

Modification:

StringBuilder.append(a).append(b) reaplced with a + b. Operations with a and b moved out from concat oparation.

Result:
Code simpler to read and faster.
2017-06-20 07:11:02 +02:00
Norman Maurer
82a43727c3 Fix testcase introduced by a2bd9a4 2017-06-20 07:01:13 +02:00
Scott Mitchell
14ea69cdc1 NullPointerException in Lz4FrameEncoder
Motivation:
Lz4FrameEncoder maintains internal state, but the life cycle of the buffer is not consistently managed. The buffer is allocated in handlerAdded but freed in close, but the buffer can still be used until handlerRemoved is called.

Modifications:
- Move the cleanup of the buffer from close to handlerRemoved
- Explicitly throw an EncoderException from Lz4FrameEncoder if the encode operation has finished and there isn't enough space to write data

Result:
No more NPE in Lz4FrameEncoder on the buffer.
2017-06-19 14:24:09 -07:00
Roger Kapsi
7460d90a67 Add listener to returned Future rather than passed in Promise
Motivation

It's cleaner to add listeners to returned Futures rather than provided Promises because the latter can have strange side effects in terms of listeners firing and called methods returning. Adding listeners preemtively may yield also to more OPS than necessary when there's an Exception in the to be called method.

Modifications

Add listener to returned ChannelFuture rather than given ChannelPromise

Result

Cleaner completion and exception handling
2017-06-16 13:21:19 +01:00
Norman Maurer
575baf5050 Use more aggressive expanding strategy in HpackHuffmanDecoder
Motivation:

Before we always expanded the buffer by the initialCapacity which by default is 32 bytes. This may lead to many expansions of the buffer until we finally reached the point that the buffer can fin everything.

Modifications:

Double the buffer size until the threshold of >= 1024 is hit. After this will grow it by the initialCapacity

Result:

Less expansion of the buffer (and so allocations / copies) when the intialCapacity is not big enough. Fixes [#6864].
2017-06-15 06:56:44 +02:00