Skip to main content

Explain IPC - Interprocess communication.

The communications and data sharing between applications( different processes) are called as interprocess communications (IPC).
Some IPC allows the communications and data sharing among several specialized processes.
Other IPC communications and data sharing among computers on a network.

Applications can use IPC categorized as clients or servers. A client is an application or a process that requests a service from some other application or process.
A server is an application or a process that responds to a client request. Many applications act as both a client and a server, depending on the situation.
For example, a word processing application might act as a client in requesting a summary table of manufacturing costs from a spreadsheet application acting as a server. The spreadsheet application, in turn, might act as a client in requesting the latest inventory levels from an automated inventory control application.

an application can use several IPC mechanisms.

Based on applications running on other computers on a network,
or is it sufficient for the application to communicate only with applications on the local computer?

communicate with applications running on other computers that may be running under different operating systems (such as 16-bit Windows or UNIX)?
application have to choose the other application(s) with which the application communicates, or can the application implicitly find its cooperating partners?
application communicate with many different applications in a general way, such as allowing cut and paste operations with any other application, or should its communications requirements be limited to a restricted set of interactions with specific other applications?
Is performance a critical aspect of the application? All IPC mechanisms include some amount of overhead.
Should the application be a GUI application or a console application? Some IPC mechanisms require a GUI application.
The following IPC mechanisms are supported by Windows:

Clipboard
COM
Data Copy
DDE
File Mapping
Mailslots
Pipes
RPC
Windows Sockets
Labels:

Comments

Post a Comment

Popular posts from this blog

Explain Polymorphism and Flavors of Polymorphism...

Polymorphism is the ability of different objects to react in an individual manner to the same message. This notion was imported from natural languages. For example, the verb "to close" means different things when applied to different objects. Closing a door, closing a bank account, or closing a program's window are all different actions; their exact meaning is determined by the object on which the action is performed. Most object-oriented languages implement polymorphism only in the form of virtual functions. But C++ has two more mechanisms of static (meaning: compile-time) polymorphism: Operator overloading. Applying the += operator to integers or string objects, for example, is interpreted by each of these objects in an individual manner. Obviously, the underlying implementation of += differs in every type. Yet, intuitively, we can predict what results are. Templates. A vector of integers, for example, reacts differently from a vector of string objects when it receives ...
17 comments
Read more

Function name mangling for C++ and Java

G++ internals - Mangling Both C++ and Jave provide overloaded function and methods, which are methods with the same types but different parameter lists. Selecting the correct version is done at compile time. Though the overloaded functions have the same name in the source code, they need to be translated into different assembler-level names, since typical assemblers and linkers cannot handle overloading. This process of encoding the parameter types with the method name into a unique name is called name mangling . The inverse process is called demangling . It is convenient that C++ and Java use compatible mangling schemes, since the makes life easier for tools such as gdb, and it eases integration between C++ and Java. Note there is also a standard "Jave Native Interface" (JNI) which implements a different calling convention, and uses a different mangling scheme. The JNI is a rather abstract ABI so Java can call methods written in C or C++; we are concerned he...
5 comments
Read more