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【内核源码】linux UDP实现 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...= &sysctl_udp_rmem_min,
.obj_size = sizeof(struct udp_sock),
.h.udp_table = &udp_table,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_udp_setsockopt,
.compat_getsockopt = compat_udp_getsockopt,
#endif
.diag_destroy = udp_abort,
};
bind()
bind()->inet_bind()->udp_v4_get_por...
subtle differences between JavaScript and Lua [closed]
... ^.
In Lua, any type of value (except nil and NaN) can be used to index a table. In JavaScript, all non-string types (except Symbol) are converted to strings before being used to index an object. For example, after evaluation of the following code, the value of obj[1] will be "string one" in JavaSc...
Value cannot be null. Parameter name: source
...tyDataSource> and this has got a include property and I have some other tables listed here and mistakenly a table was there that has been delete from the database recently and I never noticed and it returning null with other entities. I just removed the stupid table from the include list and I am...
UIRefreshControl without UITableViewController
... way to leverage the new iOS 6 UIRefreshControl class without using a UITableViewController subclass?
12 Answers
...
How do you keep parents of floated elements from collapsing? [duplicate]
...arfix :
.clearfix:before, .clearfix:after {
content: "";
display: table;
}
.clearfix:after {
clear: both;
}
.clearfix {
*zoom: 1;
}
In SCSS, you should use the following technique :
%clearfix {
&:before, &:after {
content:" ";
display:table;
}
&:after...
Why should C++ programmers minimize use of 'new'?
...omposes. It scales.
If you use the Line class as a building block:
class Table
{
Line borders[4];
};
Then
int main ()
{
Table table;
}
allocates four std::string instances, four Line instances, one Table instance and all the string's contents and everything is freed automagically...
What are the “must have” jQuery plugins? [closed]
...n those which are likely to be useful in general UI development, such as Tablesorter , rather than those which serve uncommon needs.
...
Is the SQL WHERE clause short-circuit evaluated?
...on algorithm that takes into account a lot of things (indexes, statistics, table size, resources, etc) to come up with an effective execution plan. After this evaluation, you can't say for sure that your short circuit logic is guaranteed.
I ran into the same question myself sometime ago and my res...
Thread context switch Vs. process context switch
...?t=46m8s (watch from the beginning to know more about Virtual Memory, page tables and TLB).
– piotrwest
Jun 24 '16 at 23:05
...