Recently, the WebPart communication technology was used in SharePoint2007. I personally think that the ConnectionConsumer and ConnectionProvider in version 2007 are not as easy as those in version 2010, so I changed the idea to implement
Currently, most system permissions obtained through mysql on the Internet are obtained through User Function interfaces udfs of MYSQL, such as Mix. dll and my_udf.dll. In Mix. there is a MixConnect function in the dll that will rebound the shell,
Introduction to AOPAOP is aspect oriented programming abbreviation, meaning: aspect-oriented programming (also known as aspect), through the pre-compilation method and run-time dynamic agent implementation of the program without modifying the source
1. The meaning of garbage collectionIn C + +, the memory occupied by an object is occupied until the end of the program and cannot be assigned to other objects until it is explicitly released, whereas in Java the memory becomes garbage when there is
Peercast source code is the first time I read more than 20 thousand lines of code. During this period, I gained a lot and accumulated some experience. Peercast source code is the first time I read more than 20 thousand lines of code,During this
These two days I studied how to use a program to hang up the phone. We found that the endcall method was provided by phone in android1.0, and this method was set to private after Android 1.5.
So we have the following research:
/*** Call itelephony's
2.3 UDP socket
UDP provides an end-to-end service different from the TCP protocol. In fact, UDP only implements two functions: 1 ),Add another layer of IP address (port) 2 based on the IP protocol, detect possible errors during data transmission,
Chapter 5 NiO
5.1 why do we need NiO
Synchronous access to the shared state in a multi-threaded environment increases the overhead of System Scheduling and context switching, which cannot be controlled by programmers.
Blocking wait.
We need a set
4.2 blocking and timeout
Socket I/O calls may be blocked for multiple reasons. The data input methods read () and receive () are blocked when no data is readable. The write () method of TCP socket may block when there is not enough space to cache
Both. NET and Delphi encapsulate services well, but writing services in C ++ is still very cumbersome. Write some helper classes first:
// Manage the Service handleClass servicehandle {Public:Servicehandle (SC _handle h): H _ (h ){If (! H _)Throw
There are two basic methods for class inheritance
Basic Principle of object impersonating: constructor uses the this keyword to assign values to all attributes and methods (constructor is actually only a value assignment function). Therefore, you
This article describes how to implement search contract and share contract based on XAML + C. We usually search in Windows 8 (using the shortcut key windows icon + q). Next we will introduce the implementation steps one by one.
1. First, we will
This chapter describes how to embed a JVM into your local program. A jvm can be considered as a local library. A local program can connect to this library and load the JVM through the invocation interface. In fact, the standard starter in JDK is a
Starting from Python 2.4, Python introduced the subprocess module to Manage Sub-processes to replace the methods of some old modules:OS. System,OS. Spawn,OS. popen,Popen2 .*,Commands .*.SubprocessNot only can an external command be called as a
C # generate a DLL file
Use the CSC command to compile the. CS file into. dll
Most of the time, we need to compile the. CS file separately into A. dll file. The operations are as follows:
Open the command window-> Enter cmd to the console-> Cd C: \
Simple factory mode is simple, but there is a very serious problem.When a new product needs to be introduced in the system, because the static factory method creates different products through different input parameters, the source code of the
Use mysql_udf and curl library to complete http_post communication module (mysql_udf, multi_curl, http, post)
This module is currently mainly used for data synchronization between the sns of xoyo and the tcsql database independently developed by
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