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Android微信智能心跳方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...信的智能心跳方案细节。由于字数比较多，建议大家使用PC版微信查看。
1.主要目标
本方案的主要目标是，在尽量不影响用户收消息及时性的前提下，根据网络类型自适应的找出保活信令TCP连接的尽可能大的心跳间隔，从而达...
Why #define TRUE (1==1) in a C boolean macro instead of simply as 1?
...ntime, and accordingly may be used in any place that a constant may be."
PC-Lint will even issue a message (506, constant value boolean) if you don't use a literal for TRUE and FALSE macros:
For C, TRUE should be defined to be 1. However, other languages use quantities other than 1 so some pro...
Conditional Variable vs Semaphore
...code could help figuring out semaphores csc.villanova.edu/~mdamian/threads/PC.htm
– Mohamad-Jaafar NEHME
Feb 3 '15 at 23:55
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“PKIX path building failed” and “unable to find valid certification path to requested target”
...You will be asked for password which default is changeit
Restart your JVM/PC.
source:
http://magicmonster.com/kb/prg/java/ssl/pkix_path_building_failed.html
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How do I install Python OpenCV through Conda?
...eos).
Set Environmental Variables
Right-click on "My Computer" (or "This PC" on Windows 8.1) → left-click Properties → left-click "Advanced" tab → left-click "Environment Variables..." button.
Add a new User Variable to point to the OpenCV (either x86 for 32-bit system or x64 for 64-bit sys...
Unit Testing C Code [closed]
...t with hardward drivers. Those drivers are, in most cases not present on a PC. HWUT Documentation
– Frank-Rene Schäfer
Sep 22 '15 at 13:59
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MemoryCache does not obey memory limits in configuration
...ran into the exact same behavior, wrote a test app and managed to crash my PC many times even though polling time was as low as 10 seconds and cache memory limit was 1MB. Thanks for all the insights.
– Bruno Brant
Oct 22 '13 at 20:11
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Efficiency of premature return in a function
... @Philip No, an assembly branch is an assembly branch. It does affect the PC of course but it could be by completely reloading it, and it also has side-effects in the processor w.r.t. the pipeline, caches, etc.
Retrieve specific commit from a remote Git repository
...e only one specific commit from a remote Git repo without cloning it on my PC? The structure of remote repo is absolutely same as that of mine and hence there won't be any conflicts but I have no idea how to do this and I don't want to clone that huge repository.
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Why are C# interface methods not declared abstract or virtual?
...is not valid for this item". Tested using v2.0.50727 (oldest version on my PC).
– ccppjava
Aug 22 '13 at 10:01
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