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struct-arrays: hack it up so that if the class name is a literal parameter for the constructor, then the array works in deployed apps even if not every call site of nth or set-nth is inlined on the array. Fixes tools.deploy.test.5 regression after kqueue was converted to use STRUCT:. Because of Dan's call(-inlining, no perf regression on struct-arrays benchmark!

db4
Slava Pestov 2009-08-31 05:42:28 -05:00
parent 6ed46177e9
commit 2e119a0ae7
1 changed files with 29 additions and 15 deletions
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44
basis/struct-arrays/struct-arrays.factor
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@ -1,7 +1,8 @@
! Copyright (C) 2008 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors alien alien.c-types alien.structs byte-arrays
classes.struct kernel libc math parser sequences sequences.private ;
classes.struct kernel libc math parser sequences
sequences.private words fry memoize compiler.units ;
IN: struct-arrays
: c-type-struct-class ( c-type -- class )
@ -11,7 +12,8 @@ TUPLE: struct-array
{ underlying c-ptr read-only }
{ length array-capacity read-only }
{ element-size array-capacity read-only }
{ class read-only } ;
{ class read-only }
{ ctor read-only } ;
M: struct-array length length>> ; inline
M: struct-array byte-length [ length>> ] [ element-size>> ] bi * ; inline
@ -20,34 +22,46 @@ M: struct-array byte-length [ length>> ] [ element-size>> ] bi * ; inline
[ element-size>> * >fixnum ] [ underlying>> ] bi <displaced-alien> ; inline
M: struct-array nth-unsafe
[ (nth-ptr) ] [ class>> dup struct-class? ] bi [ memory>struct ] [ drop ] if ; inline
[ (nth-ptr) ] [ ctor>> ] bi execute( alien -- object ) ; inline
M: struct-array set-nth-unsafe
[ (nth-ptr) swap ] [ element-size>> ] bi memcpy ; inline
! Foldable memo word. This is an optimization; by precompiling a
! constructor for array elements, we avoid memory>struct's slow path.
MEMO: struct-element-constructor ( c-type -- word )
[
"struct-array-ctor" f <word>
[
swap dup struct-class?
[ '[ _ memory>struct ] [ ] like ] [ drop [ ] ] if
(( alien -- object )) define-inline
] keep
] with-compilation-unit ; foldable
: <direct-struct-array> ( alien length c-type -- struct-array )
[ heap-size ] [ c-type-struct-class ] [ struct-element-constructor ]
tri struct-array boa ; inline
M: struct-array new-sequence
[ element-size>> [ * (byte-array) ] 2keep ]
[ class>> ] bi struct-array boa ; inline
[ element-size>> * (byte-array) ] [ length>> ] [ class>> ] tri
<direct-struct-array> ; inline
M: struct-array resize ( n seq -- newseq )
[ [ element-size>> * ] [ underlying>> ] bi resize ]
[ [ element-size>> ] [ class>> ] bi ] 2bi
struct-array boa ;
[ [ element-size>> * ] [ underlying>> ] bi resize ] [ class>> ] 2bi
<direct-struct-array> ; inline
: <struct-array> ( length c-type -- struct-array )
[ heap-size [ * <byte-array> ] 2keep ]
[ c-type-struct-class ] bi struct-array boa ; inline
[ heap-size * <byte-array> ] 2keep <direct-struct-array> ; inline
ERROR: bad-byte-array-length byte-array ;
: byte-array>struct-array ( byte-array c-type -- struct-array )
[ heap-size [
[
heap-size
[ dup length ] dip /mod 0 =
[ drop bad-byte-array-length ] unless
] keep ] [ c-type-struct-class ] bi struct-array boa ; inline
: <direct-struct-array> ( alien length c-type -- struct-array )
[ heap-size ] [ c-type-struct-class ] bi struct-array boa ; inline
] keep <direct-struct-array> ; inline
: malloc-struct-array ( length c-type -- struct-array )
[ heap-size calloc ] 2keep <direct-struct-array> ; inline