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Linux: is there a read or recv from socket with timeout?
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// LINUX
struct timeval tv;
tv.tv_sec = timeout_in_seconds;
tv.tv_usec = 0;
setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO, (const char*)&tv, sizeof tv);
// WINDOWS
DWORD timeout = timeout_in_seconds * 1000;
setsockopt(socket, SOL_SOCKET, SO_RCVTIMEO, (const char*)&timeout, sizeof timeout);
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The maximum recursion 100 has been exhausted before statement completion
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250
Specify the maxrecursion option at the end of the query:
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from EmployeeTree
option (maxrecur...
Rails mapping array of hashes onto single hash
...g a method call between each element of it.
For example [1, 2, 3].reduce(0, :+) is like saying 0 + 1 + 2 + 3 and gives 6.
In our case we do something similar, but with the merge function, which merges two hashes.
[{:a => 1}, {:b => 2}, {:c => 3}].reduce({}, :merge)
is {}.merge({:a =&g...
Get the first N elements of an array?
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370
Use array_slice()
This is an example from the PHP manual: array_slice
$input = array("a", "...
How do I use Maven through a proxy?
...mething like this:
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0
http://maven.apache.org/xsd/settings-1.0.0.xsd">
[...]
<proxies>
<p...
Python string.join(list) on object array rather than string array
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answered Jan 31 '09 at 0:10
Adam RosenfieldAdam Rosenfield
346k9090 gold badges477477 silver badges564564 bronze badges
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Get exit code of a background process
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130
1: In bash, $! holds the PID of the last background process that was executed. That will tell y...
Count number of matches of a regex in Javascript
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edited Apr 10 '18 at 20:52
Trevor
11.4k1111 gold badges6767 silver badges9090 bronze badges
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Sample settings.xml for maven
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190
Here's the stock "settings.xml" with comments (complete/unchopped file at the bottom)
License:
&...
Save modifications in place with awk
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150
In GNU Awk 4.1.0 (released 2013) and later, it has the option of "inplace" file editing:
[...] ...