UNIX Network Programming Reading Notes

Chapter 1:

The C/C ++ language provides two different programming modes: ipl32 and pl64.
? Ipl32
● The three data types integer, pointer, and long are 32-bit (4 bytes). In this mode, 32
The theoretical memory usage limit is 4 GB.
? Pl64
● The pointer and long data types are 64-bit (8 bytes). The address space is 64-bit and the memory usage exceeds
4 GB (up to 2 ^ 60 bytes = 1eb ).

More infoabout ipl32 and pl64, please refer to http://www-31.ibm.com/cn/downloadfiles/tsc/faq/cyberclass/aixmig/aixmig.pdf

Chapter 2:

TCP connection establishment process:

TCP connection release process:

The Relationship Between TCP status and socket function call:

UNIX Network Programming Reading Notes