Cleaning up monitors in preparation for Linux inotify

db4
Slava Pestov 2008-02-02 16:23:04 -06:00
parent 70b685fad8
commit ff40513165
3 changed files with 53 additions and 35 deletions

View File

@ -1,11 +1,39 @@
! Copyright (C) 2008 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: io.backend kernel continuations ;
USING: io.backend kernel continuations namespaces sequences
assocs hashtables sorting arrays ;
IN: io.monitor
<PRIVATE
TUPLE: monitor queue closed? ;
: check-monitor ( monitor -- )
monitor-closed? [ "Monitor closed" throw ] when ;
: (monitor) ( delegate -- monitor )
H{ } clone {
set-delegate
set-monitor-queue
} monitor construct ;
HOOK: fill-queue io-backend ( monitor -- assoc )
: changed-file ( changed path -- )
namespace [ swap add ] change-at ;
: dequeue-change ( assoc -- path changes )
delete-any prune natural-sort >array ;
PRIVATE>
HOOK: <monitor> io-backend ( path recursive? -- monitor )
HOOK: next-change io-backend ( monitor -- path changes )
: next-change ( monitor -- path changed )
dup check-monitor
dup monitor-queue dup assoc-empty? [
drop dup fill-queue over set-monitor-queue next-change
] [ nip dequeue-change ] if ;
SYMBOL: +add-file+
SYMBOL: +remove-file+

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@ -14,9 +14,9 @@ TUPLE: io-task port callbacks ;
: io-task-fd io-task-port port-handle ;
: <io-task> ( port continuation class -- task )
>r 1vector io-task construct-boa r> construct-delegate ;
inline
: <io-task> ( port continuation/f class -- task )
>r [ 1vector ] [ V{ } clone ] if* io-task construct-boa
r> construct-delegate ; inline
TUPLE: input-task ;
@ -194,7 +194,7 @@ TUPLE: mx-port mx ;
TUPLE: mx-task ;
: <mx-task> ( port -- task )
f io-task construct-boa mx-task construct-delegate ;
f mx-task <io-task> ;
M: mx-task do-io-task
io-task-port mx-port-mx 0 swap wait-for-events f ;

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@ -3,12 +3,10 @@
USING: alien.c-types destructors io.windows
io.windows.nt.backend kernel math windows windows.kernel32
windows.types libc assocs alien namespaces continuations
io.monitor io.nonblocking io.buffers io.files io sequences
hashtables sorting arrays combinators ;
io.monitor io.monitor.private io.nonblocking io.buffers io.files
io sequences hashtables sorting arrays combinators ;
IN: io.windows.nt.monitor
TUPLE: monitor path recursive? queue closed? ;
: open-directory ( path -- handle )
FILE_LIST_DIRECTORY
share-mode
@ -22,23 +20,26 @@ TUPLE: monitor path recursive? queue closed? ;
dup add-completion
f <win32-file> ;
TUPLE: win32-monitor path recursive? ;
: <win32-monitor> ( path recursive? port -- monitor )
(monitor) {
set-win32-monitor-path
set-win32-monitor-recursive?
set-delegate
} win32-monitor construct ;
M: windows-nt-io <monitor> ( path recursive? -- monitor )
[
>r dup open-directory monitor <buffered-port> r> {
set-monitor-path
set-delegate
set-monitor-recursive?
} monitor construct
over open-directory win32-monitor <buffered-port>
<win32-monitor>
] with-destructors ;
: check-closed ( monitor -- )
port-type closed eq? [ "Monitor closed" throw ] when ;
: begin-reading-changes ( monitor -- overlapped )
dup port-handle win32-file-handle
over buffer-ptr
pick buffer-size
roll monitor-recursive? 1 0 ?
roll win32-monitor-recursive? 1 0 ?
FILE_NOTIFY_CHANGE_ALL
0 <uint>
(make-overlapped)
@ -49,6 +50,7 @@ M: windows-nt-io <monitor> ( path recursive? -- monitor )
[
dup begin-reading-changes
swap [ save-callback ] 2keep
dup check-monitor ! we may have closed it...
get-overlapped-result
] with-port-timeout
] with-destructors ;
@ -63,7 +65,7 @@ M: windows-nt-io <monitor> ( path recursive? -- monitor )
{ [ t ] [ +modify-file+ ] }
} cond nip ;
: changed-file ( directory buffer -- changed path )
: parse-file-notify ( directory buffer -- changed path )
{
FILE_NOTIFY_INFORMATION-FileName
FILE_NOTIFY_INFORMATION-FileNameLength
@ -71,22 +73,10 @@ M: windows-nt-io <monitor> ( path recursive? -- monitor )
} get-slots >r memory>u16-string path+ r> parse-action swap ;
: (changed-files) ( directory buffer -- )
2dup changed-file namespace [ swap add ] change-at
2dup parse-file-notify changed-file
dup FILE_NOTIFY_INFORMATION-NextEntryOffset dup zero?
[ 3drop ] [ swap <displaced-alien> (changed-files) ] if ;
: changed-files ( directory buffer len -- assoc )
M: windows-nt-io fill-queue ( monitor -- assoc )
dup win32-monitor-path over buffer-ptr rot read-changes
[ zero? [ 2drop ] [ (changed-files) ] if ] H{ } make-assoc ;
: fill-queue ( monitor -- )
dup monitor-path over buffer-ptr pick read-changes
changed-files
swap set-monitor-queue ;
M: windows-nt-io next-change ( monitor -- path changes )
dup check-closed
dup monitor-queue dup assoc-empty? [
drop dup fill-queue next-change
] [
nip delete-any prune natural-sort >array
] if ;