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腾讯Tencent开源框架介绍（持续更新） - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...o_cond_timedwait切出协程，等待再次不为空
while (true)
{
if (env->task_queue.empty())
{
co_cond_timedwait(env->cond, -1);
continue;
}
stTask_t* task = env->task_queue.front();
env->task_queue.pop();
printf("%s:%d consume task %d\n", __func__, __LINE__, task->...
fork() branches more than expected?
...t fork() creates a near-perfect copy of the current process. The most significant difference (for most purposes) is that fork()'s return value differs between parent and child. (Since this code ignores the return value, it makes no difference.)
So, at first, there is one process. That creates a ...
LINQ to Entities case sensitive comparison
...ter that it gets filtered again on the client case sensitively. Of course, if you happen to have thousands of entries that match case insensitive, but only one of them is the correct one case sensitive, then it's a lot of overhead. But I don't think that reality will present such scenarios... :)
...
When is assembly faster than C?
...(float only has 23 bit and it's harder to predict precision loss). i.e. uniform absolute precision over the entire range, instead of close-to-uniform relative precision (float).
Modern compilers optimize this fixed-point example nicely, so for more modern examples that still need compiler-specif...
How to convert an array into an object using stdClass() [duplicate]
...Vasile', 'prenume' => 'Mihai', 'sex' => 'm', 'varsta' => 25)
);
If you want to see is this stdClass object just call this
print_r($clasa);
If you want to convert an array to object code will be
$arr = array('a'=>'apple','b'=>'ball');
$arr = (object) $arr;
You don't need to us...
not None test in Python [duplicate]
...
if val is not None:
# ...
is the Pythonic idiom for testing that a variable is not set to None. This idiom has particular uses in the case of declaring keyword functions with default parameters. is tests identity in Pyt...
How do I find a “gap” in running counter with SQL?
...rt into artificial_range( name ) select name from artificial_range;
-- you now have two rows
insert into artificial_range( name ) select name from artificial_range;
-- you now have four rows
insert into artificial_range( name ) select name from artificial_range;
-- you now have eight rows
--etc.
...
What is the JSF resource library for and how should it be used?
...ike Mojarra and MyFaces and JSF component libraries like PrimeFaces and OmniFaces use it. No one of them use resource libraries this way. They use it (under the covers, by @ResourceDependency or UIViewRoot#addComponentResource()) the following way:
<h:outputScript library="javax.faces" name="jsf...
Boost Statechart vs. Meta State Machine
...you very much. It's a delight to hear the opinion of the developer itself! Now we only need the response of Andreas Huber :)
– FireAphis
Nov 28 '10 at 7:29
16
...
How can I print the contents of a hash in Perl?
...rator in C and C++. The reason it matters in this context is that in Perl, if you call a function with a hash value as the argument, that hash value gets listified and expanded into multiple arguments - so %hsh=("a" => 1, "b" => 2); foo(%hsh); would be equivalent to foo("a", 1, "b", 2). If you...