大约有 47,000 项符合查询结果（耗时：0.0584秒） [XML]
What is a deadlock?
...ocess X and process Y
X starts to use A.
X and Y try to start using B
Y 'wins' and gets B first
now Y needs to use A
A is locked by X, which is waiting for Y
The best way to avoid deadlocks is to avoid having processes cross over in this way. Reduce the need to lock anything as much as you can.
...
.NET - Dictionary locking vs. ConcurrentDictionary
... Or, what if two customers reaches for the same item at the same time, who wins? Will there be a fight? This is a non-threadsafe-collection. There's plenty of ways to avoid problems, but they all require some kind of locking, or rather explicit access in some way or another.
On the other hand, cons...
Getting the location from an IP address [duplicate]
...untry right, and at least close on the state/province, I'd consider that a WIN. If you happen to be using this to look-up info for a DOS attack, keep in mind the IPs might not even be valid (not assigned to anyone or outside valid public IP range).
– eselk
Apr...
Apache Prefork vs Worker MPM
... system unless a different one is choosen at compile-time (for instance on Windows mpm_winnt is used by default). Here's the list of operating systems and their default MPMs:
BeOS beos
Netware mpm_netware
OS/2 mpmt_os2
Unix/Linux prefork (update for Apache version ≥ 2.4: prefork, worker, or...
What is the difference between memmove and memcpy?
...than memcpy and if you are unlucky, it may even be slower, so you can only win calling memcpy.
share
|
improve this answer
|
follow
|
...
Using str_replace so that it only acts on the first match?
... of mistakes. While substr_replace is a somewhat unwieldy function to use owing to all the parameters, the real issue is that doing string manipulation by numbers is just tricky sometimes - you have to be careful to pass the right variable/offset to functions. I'd actually go so far as to say that t...
Making a property deserialize but not serialize with json.net
...rialization.Json & Newtonsoft.Json) and it worked for me like the following:
flag all your class and sub-classes as "DataContract".
flag all the properties of your class and sub-classes as "DataMember".
flag all the properties of your class and sub-classes as "JsonProperty" except those you ...
Text editor to open big (giant, huge, large) text files [closed]
...
Free read-only viewers:
Large Text File Viewer (Windows) – Fully customizable theming (colors, fonts, word wrap, tab size). Supports horizontal and vertical split view. Also support file following and regex search. Very fast, simple, and has small executable size.
klogg ...
Best practice using NSLocalizedString
...iption:
NSLocalizedString(@"DOWNLOAD_CANCEL_OR_CONTINUE", @"Cancel notice window title when a download takes too long to proceed");
Using the same string in different places
If you use the same string multiple times, you can either use a macro as you did, or cache it as an instance variable in y...
Python syntax for “if a or b or c but not all of them”
...
All great answers, but this wins for conciseness, with great short-circuiting. Thanks all!
– Chris Wilson
May 13 '13 at 12:46
38
...