53jk1 / inter-process-communication

Inter-process communication

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Calculator

> gcc calc_client.c -Wall -Wextra -o calc_client.exe
> gcc calc_server.c -Wall -Wextra -o calc_server c:\windows\system32\kernel132.dll

Testing the application set requires opening two consoles and running the server application on one of them and the client on the other.

> calc_server.exe
> calc_client.exe

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Unix domain sockets and socketpair

Compilation and an example run is as follows.

$ gcc -Wall -Wextra socketpair.c -o socketpair
$ ./socketpair

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Shared memory (Windows OS)

Using two terminals, you can compile and test the operation of both programs:

Terminal 1:

> gcc -std=c99 -Wall -Wextra hellosharedmemory.c -o hello
> hello

Terminal 2:

> accesschk -t section -o \Sessions\1\BaseNamedObjects\HelloWorld
> gcc -std=c99 -Wall -Wextra dumpsection.c -o dumpsection
> dumpsection Local\HelloWorld
> type Local_HelloWorld.bin

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Messages in WinAPI (C++)

Compilation and run are shown below.

> g++ msgtest.cc -Wall -Wextra -o msgtest
> msgtest

Generally, the main use of messages is communication between GUI windows.

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