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What is the difference between sigaction and signal?
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Excellent sigaction() demo from GCC themselves: gnu.org/software/libc/manual/html_node/…; and excellent signal() demo from GCC themselves: gnu.org/software/libc/manual/html_node/…. Notice that in the signal demo they avoid changing the handler from ignore (SIG_IGN) if that...
Wrap a delegate in an IEqualityComparer
...ition of why one should never ignore hash codes when defining equality in .Net.
– Marcelo Cantos
Jun 29 '13 at 14:24
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show 3 more comments
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Test if remote TCP port is open from a shell script
...this case.
Example:
Success:
$ timeout 2 bash -c "</dev/tcp/canyouseeme.org/80"; echo $?
0
Failure:
$ timeout 2 bash -c "</dev/tcp/canyouseeme.org/81"; echo $?
124
If you must preserve the exit status of bash,
$ timeout --preserve-status 2 bash -c "</dev/tcp/canyouseeme.org/81"; echo $?
1...
log4j: Log output of a specific class to a specific appender
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An example:
log4j.rootLogger=ERROR, logfile
log4j.appender.logfile=org.apache.log4j.DailyRollingFileAppender
log4j.appender.logfile.datePattern='-'dd'.log'
log4j.appender.logfile.File=log/radius-prod.log
log4j.appender.logfile.layout=org.apache.log4j.PatternLayout
log4j.appender.logfile.layo...
What are the pros and cons to keeping SQL in Stored Procs versus Code [closed]
...this with a friend on an open source project that we're working on (C# ASP.NET Forum). At the moment, most of the database access is done by building the SQL inline in C# and calling to the SQL Server DB. So I'm trying to establish which, for this particular project, would be best.
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How does BLAS get such extreme performance?
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@ulaff.net: That maybe. This was written 6 years ago. I think the fastest BLAS implementation currently (on Intel of course) is Intel MKL, but it isn't open source.
– Andrew Tomazos
Feb 11 '1...
How do I prevent Eclipse from hanging on startup?
...ious launch).
The file removed was:
<workspace>\.metadata\.plugins\org.eclipse.core.resources\.projects\<project>\.markers.snap
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ZMQ: 基本原理 - 开源 & Github - 清泛网移动版 - 专注C/C++及内核技术
...工作打好基础。
转载自：http://www.oschina.net/translate/zmq-concepts
ZMQ 0MQ ZeroMQ
How do I assert an Iterable contains elements with a certain property?
...lly hunted down the imports for Hamcrest 1.3.
the imports:
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.Matchers.contains;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.beans.HasPropertyWithValue.hasProperty;
the code:
assertThat( myCl...
maven-dependency-plugin (goals “copy-dependencies”, “unpack”) is not supported by m2e
.../Execute plugin execution -->
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
...