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Memcached下一站：HandlerSocket！ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...编译的或官方提供的二进制版本，可以略过此步。
接着下载一份和系统MySQL版本一致的MySQL源代码和HandlerSocket源代码：
mysql-5.1.37.tar.gz
ahiguti-HandlerSocket-Plugin-for-MySQL-1.0.6-76-gf5f7443.tar.gz
shell> tar zxf mysql-5.1.37.tar.gz
shell> tar zx...
How large should my recv buffer be when calling recv in the socket library
...perform fragmentation). For UDP you are always save if you use a buffer of 64 KB, since no IP packet (v4 or v6) can be above 64 KB in size (not even when fragmented) and this even includes the headers IIRC, so data will always be below 64 KB for sure.
– Mecki
D...
Why covariance and contravariance do not support value type
...> is co-variant but it does not support value type, just only reference type. The below simple code is compiled successfully:
...
Copy a file in a sane, safe and efficient way
...
64
With C++17 the standard way to copy a file will be including the <filesystem> header and ...
How do I analyze a program's core dump file with GDB when it has command-line parameters?
...2'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x0000564583cf2759 in myfunc (i=3) at main.c:7
7 *(int*)(NULL) = i; /* line 7 */
(gdb) bt
#0 0x0000564583cf2759 in myfunc (i=3) at main.c:7
#1 0x0000564583cf2858 in main (argc=3, argv=0x7ffcca4effa8) at main.c:2
So not...
Increasing (or decreasing) the memory available to R processes
...
64
From:
http://gking.harvard.edu/zelig/docs/How_do_I2.html (mirror)
Windows users may get t...
Failed to install Python Cryptography package with PIP and setup.py
...orresponding locations. For example:
C:\> \path\to\vcvarsall.bat x86_amd64
C:\> set LIB=C:\OpenSSL-1.0.1f-64bit\lib;%LIB%
C:\> set INCLUDE=C:\OpenSSL-1.0.1f-64bit\include;%INCLUDE%
C:\> pip install cryptography
Building cryptography on Linux
cryptography should build very easily on Linu...
Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
...58, 0xD8, 0x38, 0xB8, 0x78, 0xF8,
0x04, 0x84, 0x44, 0xC4, 0x24, 0xA4, 0x64, 0xE4, 0x14, 0x94, 0x54, 0xD4, 0x34, 0xB4, 0x74, 0xF4,
0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC, 0x6C, 0xEC, 0x1C, 0x9C, 0x5C, 0xDC, 0x3C, 0xBC, 0x7C, 0xFC,
0x02, 0x82, 0x42, 0xC2, 0x22, 0xA2, 0x62, 0xE2, 0x12, 0x92, 0x52,...
What is the “FS”/“GS” register intended for?
...this feature, that nobody was going to use it. Go, Andy!)
AMD in going to 64 bits decided they didn't care if they eliminated Multics as a choice (that's the charitable interpretation; the uncharitable one is they were clueless about Multics) and so disabled the general capability of segment regist...
Cannot install node modules that require compilation on Windows 7 x64/VS2012
...
This worked amazingly with my Windows 7 x64 install! Thanks Microsoft (for being dicks)!
– Blairg23
Oct 9 '14 at 16:19
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