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Example for boost shared_mutex (multiple reads/one write)?
...
It looks like you would do something like this:
boost::shared_mutex _access;
void reader()
{
// get shared access
boost::shared_lock<boost::shared_mutex> lock(_access);
// now we have shared access
}
void writer()
{
// get upgradable access
boost::upgrade_lock<boos...
Specify sudo password for Ansible
...mmand line via --extra-vars "name=value". Sudo password variable is ansible_sudo_pass. So your command would look like:
ansible-playbook playbook.yml -i inventory.ini --user=username \
--extra-vars "ansible_sudo_pass=yourPassword"
Update 2017: Ansible 2.2.1.0 now use...
How to read/process command line arguments?
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from argparse import ArgumentParser
parser = ArgumentParser()
parser.add_argument("-f", "--file", dest="filename",
help="write report to FILE", metavar="FILE")
parser.add_argument("-q", "--quiet",
action="store_false", dest="verbose", default=True,
...
Loading basic HTML in Node.js
...ttp');
var fs = require('fs');
var path = require('path');
var ext = /[\w\d_-]+\.[\w\d]+$/;
http.createServer(function(req, res){
if (req.url === '/') {
res.writeHead(200, {'Content-Type': 'text/html'});
fs.createReadStream('index.html').pipe(res);
} else if (ext.test(req.ur...
How do I view the SQL generated by the Entity Framework?
... ToString() will give you the query with variables in it, like p__linq__0, instead of the final values (eg: 34563 instead of p__linq__0)
– sports
Feb 14 '15 at 22:15
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@UniqueConstraint and @Column(unique = true) in hibernate annotation
... Beware though that columnNames must be actual names in the database. It should be mask_id and group_id if you use default naming strategy.
– vitro
Jan 14 at 12:25
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Perl build, unit testing, code coverage: A complete working example
... 12 wallclock secs ( 0.00 cusr + 0.00 csys = 0.00 CPU)
cover
Reading database from D:/Documents and Settings/LeuchKW/workspace/HelloPerlBuildWorld/cover_db
----------------------------------- ------ ------ ------ ------ ------ ------
File stmt bran cond su...
Check if event exists on element [duplicate]
... $.data() is not working any more in jQuery >= 1.8. For me $._data() is working in jQuery 1.10.1. See answer of Tom Gerken for a working solution.
– jbandi
Aug 27 '13 at 21:21
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What exactly are late static bindings in PHP?
...self::, parent::, static::, or, if going up in the class hierarchy, forward_static_call(). The function get_called_class() can be used to retrieve a string with the name of the called class and static:: introduces its scope.
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Multi-statement Table Valued Function vs Inline Table Valued Function
...re be an update to this answer for SQL Server 2017?: youtube.com/watch?time_continue=2&v=szTmo6rTUjM
– Ralph
Oct 10 '17 at 9:04
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