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Add README.md on the design of the whole program, and how its every
part(listener, filter) works, finally how to compile and use them.
Besides, notes.md records the things and technology learned in this
program, such as how to read kernel src, how the pthread_create/fork/
clone syscall works on processes and threads, the techs used to make
docker container works well, and books to be read. Good good study,
day day up.
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This commit I made several changes:
- Use structure instead of simple bson.M(interface{}). bson.M has
some shortcomings: 1) It makes the database in chaos and hard to
read, but this's not important; 2) Some entrys may has more or
less content than others, which makes it hard to decode and filt.
So I design new data structure to encode and decode. Hopes that
there's no bugs.
- Fix the way to calculate file path. The original method is to add
all the PATH entries together, that's totally wrong! PATH entry
has several types, as it shows in "objtype". I can't find it in
the kernel src code, so what i know is just "PARENT" means the dir
the file is in, while the filename itself has the path, so we
whould ignore all "PARENT"s. When the src code is found, we should
check it again.
- Fix bugs in updating. The update function of mongodb is set to
required to has a '$' such as 'set'/'push', so when we update a
whole doc, we should use replace but not update function. And,
we should never ignore the error infomation it gives us.
Hope that there's no more bugs for this Big Change.
Now its' time to write filter as well as viewer. Best wishes with
NO BUGS!
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We-unite