摘要：
win/linux中的文件属主获取方法，写了很多遍都记不住 - -， 还是记录一下，i）win中通过apiGetNamedSecurityInfo 获取到ower_sid, group_sid, 或者通过 getfilesecurity 获取到文件的file_sid, 通过GetSecurityDescriptorOwner/GetSecurityDescriptorGroup,获取到ower_sid, group_sid, 调用LookupAccountSid，获取ower/group 名。ii） win 中进程获取属主的方法，类似，通过，OpenProcessToken/GetTokenI 阅读全文
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linux kernel with param
2014-11-08 22:12 by achuan_hu, 259 阅读, 收藏,
摘要：
Linux kernel support pass param to kernel, this params can be assigned at load time by insmod or modprobe. or later read from /etc/modprobe.conf file.... 阅读全文
The-ith-Element
2014-10-02 16:55 by achuan_hu, 246 阅读, 收藏,
摘要：
Brief： the-ith-element，given a array A with n element , return the i-th element of A. A(n,i)this problem can be solved using quick-sort idear, every t... 阅读全文
Combinations [leetcode]
2014-07-13 16:49 by achuan_hu, 226 阅读, 收藏,
摘要：
描述： Given two integersnandk, return all possible combinations ofknumbers out of 1 ...n.For example,Ifn= 4 andk= 2, a solution is:[ [2,4], [3,4], [2... 阅读全文
how to debug thread cpu 100%
2014-11-17 22:40 by achuan_hu, 188 阅读, 收藏,
摘要：
when we write a program, cpu and memory usages are very important to indicate the stability of the program. Once the cpu usage reached 90%, there are ... 阅读全文
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