The differences among block, proc, and lambda in Ruby are summarized.
In the rule engine, Ruby closures are frequently used, and there are several forms of usage such as block, Proc, and lambda, which is confusing. To gain a deeper understanding of
Linux real-time management-use/proc file system to control the system
Graham White (gwhite at uk.ibm.com)IT expert, hursley, IBMAugust 2003
Http://community.csdn.net/expert/topicview1.asp? Id = 2589879
The/proc file system is LinuxThis article
In the rule engine, Ruby's closures are particularly frequent, and there are several forms of usage, such as block,proc and lambda, that are confusing. In order to get a deeper understanding of the code, and again carefully learn Ruby's closure,
1. Overview of proc file system
1. The proc file system is a mechanism for Kernel-to-user interaction. Through the proc file system, you can view the status of the Linux kernel in the user mode, you can also configure the kernel through the proc
Insert exec proc cannot be nested solution insert exec proc cannot be nested solution from: http://tuolang2006.spaces.live.com/blog/cns! 7a975ff078b9a497! 119. entry-Wang Chenghui: repost the post. indicate the source Stored Procedure C and return a
Proc is known as a virtual file system, which is a control center that can change some of these files to alter the kernel running state,It is also the kernel to provide us with the query center, the user can view the system hardware and the current
During the debugging process, we usually need to constantly modify the value of the Register to debug the effect. Now we find that there are two ways to use proc and SYS respectively.Proc -- || ----- Read_proc| ----- Write_procSys --- || ----- Show|
/proc//maps
View how the virtual address space of the process is used.
The file has 6 columns, respectively:
Address: library in process address range
Permissions: Virtual memory permissions, r= read, w= write, x=,s= share, p= private;
Offset:
Oralce database development (2). Configure proc in Linux
20070606
Papayas
I. Summary
The previous section briefly introduced proc configuration development in windows. This time, we use the Linux platform to configure Oracle proc again.Development
This article is also called "Linux Device Drivers", the fourth chapter of LDD3's Debuging Techniques's reading notes, but we are not limited to this content.
In linux, for example, to read the CPU, you can use cat/proc/cpuinfo. Through this, we
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