59 lines
1.3 KiB
Markdown
59 lines
1.3 KiB
Markdown
# Kernel Queue (kqueue) Utilization
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This is your lame attempt to understand how those Network Virtual Functions sofware works as well to sharpen your understanding on C++ and C programming language.
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## Why not [epoll]() or [select]()
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Using epoll or select would make your system spend most of its time looking at and fiddling sith the data structures and has very little time for anything else.
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## Notes
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- Compile using `g++` for the file watcher
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To trace the function calls on FreeBSD based system use `truss()` instead of `strace`.
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The `kqueue_socket.c` is my attempt on create a socket watcher timer program using `kevent`.
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- [KQUEUE NETBSD GUIDE](https://wiki.netbsd.org/tutorials/kqueue_tutorial/)
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```C
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// --------------------------------------------
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struct kevent my_event;
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struct kevent my_change;
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EV_SET(&my_change, ...); // Initialize the kevent
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for(;;){
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...;
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}
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```
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### TCP 01
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- Pointer of kevent
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### TCP 02
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- Array of kevent
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### SCTP
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- Listening
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- Init ACK
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> Find out how to make a stateless connection over SCTP.
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## Goal
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- Understand the difference between c++ and C
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- Understand how strcuct works and the difference between it on c++ and C
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- Understand
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## Issues
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- Modification to target file only detected after 2 or more interrupt
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