It was frustrating last night that a tested program reported a link failure after upgrading to the latest MongoDB 2.4 C ++ driver. It's not easy.
/usr/lib/gcc/x86_64-linux-gnu/4.7/../../../../lib/libmongoclient.a(log.o): In function mongo::LoggingManager::start(std::string const, bool)': log.cpp:(.text._ZN5mongo14LoggingManager5startERKSsb[_ZN5mongo14LoggingManager5startERKSsb]+0x4c): undefined reference toboost::filesystem3::detail::status(boost::f
array of the corresponding index
[ResUrl: outChars: I];
}
[ResUrl:];
}
Note: The principle of converting a long link to a short link is very simple. It is equivalent to renaming, but your server defines its own rules and has its own key (that is, the key variable defined in the algorithm, you need to replace it with the key defined by your product), and then determine which index element in the resUrl is
The configuration of the TFTP server on Mac and the firmware upgrade for TP-Link, tftptp-link1. TFTP protocol
Simple File Transfer Protocol Trivial File Transfer Protocol (TFTP) is a simple and low-cost File Transfer Protocol based on UDP Protocol, allowing the client to get or put files to a remote host. Because of its high overhead, TFTP is used to guide computers, such as routers without large storage capacity. This is why many routers use tftp for
block status in real time5.inode Bitmap (inode table): Log used and unused inode codesDUMP2FS Backup, view file system InformationTwo. Soft links and hard linksln source destination default is to establish a hard linkLn-s source destination Creating soft links
Hard links use detailed,
(1) Create a hard link to the/etc/crontab/root/crontab650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M00/85/3C/wKioL1edxcWBlCNdAAANWSzeMQw518.png
1. Create a dynamic link library DLL3
The code for DLL3.cpp is as follows
#include using namespace STD;voidPro1 (intAint(*FUN1) (intb)) {if(A > -) {Fun1 (a); }Else{cout"Do not call other functions"intFUN3 (intA) {cout"This number is:"return 0;}int(*FUN4) (inta);voidPro2 (intAvoid(*pro) (intBint(*FUN2) (intc)),int(*fun) (intD)) {if(A >0) {Pro (A, fun); }Else{cout"A is not greater than 0"
The code for DLL3.DEF is as follows
L
Author: Zhu Jincan
Source: http://blog.csdn.net/clever101
Compile a small object using codeblocks10.05ProgramThe PNG Library and zlib library are used. I found that when compiling a PNG static library, I only need to specify the header file path of the zlib library, but do not need to link to the zlib library (this is a bit strange ). Then an error occurs when compiling a self-written Program:
Undefined reference to 'inflateinit _ '|
Inflat
It is always uncomfortable to see the disgusting URLs of Baidu search results, so it took some time to write a chrome extension and automatically correct these links.Firefox extension has not been written yet.
Main function: remove the jump from the baidu search result link and open the result URL directly.
Will the link http://www.baidu.com/link like this? Url
Link pool function: 1. Store links; 2. deduplicate links; 3. set priority for links. Practice solutions: 1. stored in the database; 2. redis; 3. Memory set; 4. queue. How to write the connection pool and capture and Dispatch code?
Link pool function: 1. Store links; 2. deduplicate links; 3. set priority for links.Practice solutions: 1. stored in the database; 2. redis; 3. Memory set; 4. queue.
How to wr
webview if less directly changed (that is, directly through the server to determine a or B after the content of A or b), but this interface has more than 10, if changed, will increase the server side a lot of work, the eldest brother after thinking, decided to change the B client's code, the B's WebView in the click of the hyperlink address from a://** to b://**, so that you can achieve the desired effect by the minimum manpower.ImplementWhen you click on a hyperlink in UIWebView, you want to c
Get ready:1. Download the RABBITMQ and build the environment (as in Python: http://www.cnblogs.com/g177w/p/8176797.html)2. Download the supported jar packages (http://repo1.maven.org/maven2/com/rabbitmq/amqp-client)Producer Side (Productor.java):1 Package rabbitmqtest;2 3 4 ImportJava.util.HashMap;5 ImportJava.util.Map;6 7 ImportCom.rabbitmq.client.AMQP.Queue;8 ImportCom.rabbitmq.client.Channel;9 Importcom.rabbitmq.client.Connection;Ten Importcom.rabbitmq.client.ConnectionFactory; One APubliccl
The hard link records the inode of the target, and the soft link records the path of the target. Soft links are like shortcuts, while soft links are like backups. Soft links can be used as cross-partition links, while hard links can only be used as links in this partition due to inode, so more soft links are used.
Their disadvantages:
Hard link:
1. Hard links
Before understanding soft links and hard links, you must first understand some basic concepts.File: file name + DataIn Linux, files are divided into two parts: user data and metadata.User Data: file data block, which is the place where the recorded data is actually stored.Metadata: The append attribute of the stored file (inode node number is stored in the metadata). inode is the unique identifier of the file, not the file name. The file name is just for convenience.Inode: In a Linux file system
.
Symbolic connection:Soft link refers to the file path, which is very similar to the shortcut in windows.
Differences between symbolic connection and hard connection:
A symbolic connection is a path pointing to a file. It does not even need the existence of the original file (this is called a broken link). A hard connection points to the same data zone, which must exist. In addition, hard Connections canno
=650; "src=" http://s3.51cto.com/wyfs02/M02/6F/8C/wKiom1WfaoLhMRJXAAC3HOvfgps136.jpg "style=" float: none; "title=" 2.png "alt=" Wkiom1wfaolhmrjxaac3hovfgps136.jpg "/>It is necessary to note that directories and files do not have the same nature as the contents of block storageThe file stores the contents of the file itselfDirectory to store the Inode index and file name of all files in the directory, which is intended to help locate files or other directoriesThe diagram details the process of a
problem 1 : I created a hard-link file, but I don't know where it is, how do I do it? Ideas:
Find files can take advantage of the Find command.
hard-link features do not cross the file system, so the source file is in which filesystem, right there.
hard-link files and source files have the same inode #, you can use the find -in
There are two kinds of Linux links, one is called hard link (Hard link), the other is called soft link (symbolic link). By default, the LN command produces a hard link.
A, [hard link]--> refers to through the index node to connec
Use ajax to preview the link to view the content of the link. ajax Preview
First, let's look at the implementation code.
Html code
This CSS sets the style of the preview pop-up window
#previewWin {background-color: #FF9;width: 400px;height: 100px;font: .8em arial, helvetica, sans-serif;padding: 5px;position: absolute;visibility: hidden;top: 10px;left: 10px;border: 1px #CC0 solid;clip: auto;overflow: hidden
DLL: Dynamic Link Library.
DLL is a complete compiled program. It has been linked to function export tables and import tables. You can call the functions directly during use. DLL is linked only when the program is running, but does not participate in project compilation. Therefore, it is a relatively small executable file format. DLL has other file formats, such as OCX. All DLL files are executable.
Lib is just a code set. It makes some functions into
Js achieves the effect of moving the mouse over the text link color, js text link
This example describes how to change the color of a text link through JavaScript. Share it with you for your reference. The specific implementation method is as follows:
I hope this article will help you design javascript programs.
JQuery implements the line text link prompt effect method, jquery text link
This example describes how jQuery implements the row text link prompts. Share it with you for your reference. The specific implementation method is as follows:
Copy codeThe Code is as follows:
I hope this article will help you with jQuery programming.
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