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Commit Graph

26 Commits

Author SHA1 Message Date
Jan Maria Matejka
23e3b1e665 Filter: Some people can't pronounce "postfixify" correctly. Let's try "linearize" instead.
This is just a naming change.
2019-05-22 15:20:02 +00:00
Jan Maria Matejka
96d757c13f Filter: Store variables and function arguments on stack 2019-05-21 16:33:37 +00:00
Maria Matejka
fe503c7c06 Filter: fixed error-checking bug in !~ operator 2019-03-23 13:32:14 +01:00
Maria Matejka
8d65add626 Merge branch 'master' into HEAD 2019-03-18 12:54:40 +01:00
Maria Matejka
e1ac6f1e30 Faster filters: documentation on what is happening there 2019-03-06 15:01:39 +01:00
Maria Matejka
d1039926f5 Filter: Interpreter merged into the common m4 generator.
The config-time partial evaluation of constant expressions in filters is nearby.
2019-02-20 22:30:55 +01:00
Maria Matejka
32793ab685 Filter: Fixed bugs in FI_CALL and FI_SWITCH 2019-02-20 22:30:55 +01:00
Maria Matejka
ea4f55e3dc Filter: More cleanup -- customized structures also in struct f_line_item 2019-02-20 22:30:55 +01:00
Maria Matejka
0b39b1cbb7 Conf: Symbol implementation converted from void pointers to union
... and consted some declarations.
2019-02-20 22:30:55 +01:00
Maria Matejka
132529ce89 Filter: merged filter compare functions into common M4 file 2019-02-20 22:30:55 +01:00
Maria Matejka
dd4d409551 Filter: Merged postfixify routine 2019-02-20 22:30:54 +01:00
Maria Matejka
5289304519 Filter data manipulation functions separated to their file 2019-02-20 22:30:54 +01:00
Maria Matejka
4f082dfa89 Filter: merged filter instruction constructors, counting line size on instruction construct 2019-02-20 22:30:54 +01:00
Maria Matejka
c0e958e022 Filter + Config: Fix bugs, tests and split symbols by type 2019-02-20 22:30:54 +01:00
Maria Matejka
9b46748d5b Filter: refactoring of instruction constructors 2019-02-20 22:30:54 +01:00
Maria Matejka
4c553c5a5b Filter refactoring: dropped the recursion from the interpreter
This is a major change of how the filters are interpreted. If everything
works how it should, it should not affect you unless you are hacking the
filters themselves.

Anyway, this change should make a huge improvement in the filter performance
as previous benchmarks showed that our major problem lies in the
recursion itself.

There are also some changes in nest and protocols, related mostly to
spreading const declarations throughout the whole BIRD and also to
refactored dynamic attribute definitions. The need of these came up
during the whole work and it is too difficult to split out these
not-so-related changes.
2019-02-20 22:30:54 +01:00
Maria Matejka
967b88d938 Filter refactoring: The instructions are converted to the switch body by M4 2019-02-20 22:30:54 +01:00
Maria Matejka
8436040735 Filter refactoring: Drop the roa check specific f_inst 2019-02-20 22:30:54 +01:00
Maria Matejka
ca2ee91a80 Filter refactoring: The constant f_val is simply included inside the instruction
With 32 bits, size of the args is 12 bytes, the f_val is 20 bytes.
With 64 bits, size of the args is 24 bytes, the f_val the same.

This is not so nice on 32 bits, anyway the f_inst itself is
24 vs. 32 bytes and the overall size of filters must be 32k of
instructions to get to one megabyte of RAM eaten by f_inst.

Therefore it seems to be improbable for common user to get into
problems with this change.
2019-02-20 22:30:54 +01:00
Maria Matejka
7f0ac73724 Filter refactoring: Changed arguments from separate unions to an array 2019-02-20 22:30:54 +01:00
Maria Matejka
224b77d4f7 Filter refactoring: Converted condition to three-args instruction 2019-02-20 22:30:54 +01:00
Maria Matejka
8e8b1fe48c Filter refactoring: Some instructions eat up excessively much space. 2019-02-20 22:30:54 +01:00
Maria Matejka
c577493908 Filter refactoring: Expanded the short instructions with common code.
This will make the further changes more straightforward.
2019-02-20 22:30:54 +01:00
Jan Maria Matejka
fc8df41ec6 Filter refactoring: The values are now saved on a custom stack.
This shall help with performance.
2019-02-20 22:30:54 +01:00
Jan Maria Matejka
7afa143886 Filter refactoring: Passing the resulting struct f_val as a pointer.
This also drops the multiplexing of errors with the f_val itself
together with the T_RETURN f_val type flag.
2019-02-20 22:30:54 +01:00
Jan Maria Matejka
f62a369fb4 Filter refactoring: Moved filter instruction definition to a separate file 2019-02-20 22:30:54 +01:00