1 ! Copyright (C) 2008 Slava Pestov
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: alien alien.c-types alien.data alien.strings alien.syntax
4 kernel math sequences namespaces make assocs init accessors
5 continuations combinators io.encodings.utf8 destructors locals
6 arrays specialized-arrays classes.struct core-foundation
7 core-foundation.arrays core-foundation.run-loop
8 core-foundation.strings core-foundation.time unix.types ;
9 FROM: namespaces => change-global ;
10 IN: core-foundation.fsevents
12 SPECIALIZED-ARRAY: void*
13 SPECIALIZED-ARRAY: int
14 SPECIALIZED-ARRAY: longlong
16 CONSTANT: kFSEventStreamCreateFlagUseCFTypes 2
17 CONSTANT: kFSEventStreamCreateFlagWatchRoot 4
19 CONSTANT: kFSEventStreamEventFlagMustScanSubDirs 1
20 CONSTANT: kFSEventStreamEventFlagUserDropped 2
21 CONSTANT: kFSEventStreamEventFlagKernelDropped 4
22 CONSTANT: kFSEventStreamEventFlagEventIdsWrapped 8
23 CONSTANT: kFSEventStreamEventFlagHistoryDone 16
24 CONSTANT: kFSEventStreamEventFlagRootChanged 32
25 CONSTANT: kFSEventStreamEventFlagMount 64
26 CONSTANT: kFSEventStreamEventFlagUnmount 128
28 TYPEDEF: int FSEventStreamCreateFlags
29 TYPEDEF: int FSEventStreamEventFlags
30 TYPEDEF: longlong FSEventStreamEventId
31 TYPEDEF: void* FSEventStreamRef
33 STRUCT: FSEventStreamContext
38 { copyDescription void* } ;
40 CALLBACK: void FSEventStreamCallback ( FSEventStreamRef streamRef, void* clientCallBackInfo, size_t numEvents, void* eventPaths, FSEventStreamEventFlags* eventFlags, FSEventStreamEventId* eventIds ) ;
42 CONSTANT: FSEventStreamEventIdSinceNow HEX: FFFFFFFFFFFFFFFF
44 FUNCTION: FSEventStreamRef FSEventStreamCreate (
45 CFAllocatorRef allocator,
46 FSEventStreamCallback callback,
47 FSEventStreamContext* context,
48 CFArrayRef pathsToWatch,
49 FSEventStreamEventId sinceWhen,
50 CFTimeInterval latency,
51 FSEventStreamCreateFlags flags ) ;
53 FUNCTION: FSEventStreamRef FSEventStreamCreateRelativeToDevice (
54 CFAllocatorRef allocator,
55 FSEventStreamCallback callback,
56 FSEventStreamContext* context,
58 CFArrayRef pathsToWatchRelativeToDevice,
59 FSEventStreamEventId sinceWhen,
60 CFTimeInterval latency,
61 FSEventStreamCreateFlags flags ) ;
63 FUNCTION: FSEventStreamEventId FSEventStreamGetLatestEventId ( FSEventStreamRef streamRef ) ;
65 FUNCTION: dev_t FSEventStreamGetDeviceBeingWatched ( FSEventStreamRef streamRef ) ;
67 FUNCTION: CFArrayRef FSEventStreamCopyPathsBeingWatched ( FSEventStreamRef streamRef ) ;
69 FUNCTION: FSEventStreamEventId FSEventsGetCurrentEventId ( ) ;
71 FUNCTION: CFUUIDRef FSEventsCopyUUIDForDevice ( dev_t dev ) ;
73 FUNCTION: FSEventStreamEventId FSEventsGetLastEventIdForDeviceBeforeTime (
75 CFAbsoluteTime time ) ;
77 FUNCTION: Boolean FSEventsPurgeEventsForDeviceUpToEventId (
79 FSEventStreamEventId eventId ) ;
81 FUNCTION: void FSEventStreamRetain ( FSEventStreamRef streamRef ) ;
83 FUNCTION: void FSEventStreamRelease ( FSEventStreamRef streamRef ) ;
85 FUNCTION: void FSEventStreamScheduleWithRunLoop (
86 FSEventStreamRef streamRef,
88 CFStringRef runLoopMode ) ;
90 FUNCTION: void FSEventStreamUnscheduleFromRunLoop (
91 FSEventStreamRef streamRef,
93 CFStringRef runLoopMode ) ;
95 FUNCTION: void FSEventStreamInvalidate ( FSEventStreamRef streamRef ) ;
97 FUNCTION: Boolean FSEventStreamStart ( FSEventStreamRef streamRef ) ;
99 FUNCTION: FSEventStreamEventId FSEventStreamFlushAsync ( FSEventStreamRef streamRef ) ;
101 FUNCTION: void FSEventStreamFlushSync ( FSEventStreamRef streamRef ) ;
103 FUNCTION: void FSEventStreamStop ( FSEventStreamRef streamRef ) ;
105 FUNCTION: void FSEventStreamShow ( FSEventStreamRef streamRef ) ;
107 FUNCTION: CFStringRef FSEventStreamCopyDescription ( FSEventStreamRef streamRef ) ;
109 : make-FSEventStreamContext ( info -- alien )
110 FSEventStreamContext <struct>
113 :: <FSEventStream> ( callback info paths latency flags -- event-stream )
116 info make-FSEventStreamContext
117 paths <CFStringArray>
118 FSEventStreamEventIdSinceNow ! sinceWhen
121 FSEventStreamCreate ;
123 C-GLOBAL: void* kCFRunLoopCommonModes
125 : schedule-event-stream ( event-stream -- )
127 kCFRunLoopCommonModes
128 FSEventStreamScheduleWithRunLoop ;
130 : unschedule-event-stream ( event-stream -- )
132 kCFRunLoopCommonModes
133 FSEventStreamUnscheduleFromRunLoop ;
135 : enable-event-stream ( event-stream -- )
137 schedule-event-stream
138 dup FSEventStreamStart [
141 dup unschedule-event-stream
143 "Cannot enable FSEventStream" throw
146 : disable-event-stream ( event-stream -- )
147 dup FSEventStreamStop
148 unschedule-event-stream ;
150 SYMBOL: event-stream-callbacks
152 : event-stream-counter ( -- n )
153 \ event-stream-counter counter ;
156 event-stream-callbacks
157 [ [ drop expired? not ] assoc-filter H{ } assoc-like ] change-global
158 ] "core-foundation" add-startup-hook
160 : add-event-source-callback ( quot -- id )
161 event-stream-counter <alien>
162 [ event-stream-callbacks get set-at ] keep ;
164 : remove-event-source-callback ( id -- )
165 event-stream-callbacks get delete-at ;
167 :: (master-event-source-callback) ( eventStream info numEvents eventPaths eventFlags eventIds -- )
168 eventPaths numEvents void* <c-direct-array> [ utf8 alien>string ] { } map-as
169 eventFlags numEvents int <c-direct-array>
170 eventIds numEvents longlong <c-direct-array>
172 info event-stream-callbacks get at [ drop ] or call( changes -- ) ;
174 : master-event-source-callback ( -- alien )
175 [ (master-event-source-callback) ] FSEventStreamCallback ;
177 TUPLE: event-stream < disposable info handle ;
179 : <event-stream> ( quot paths latency flags -- event-stream )
181 add-event-source-callback
182 [ master-event-source-callback ] keep
183 ] 3dip <FSEventStream>
184 dup enable-event-stream
185 event-stream new-disposable swap >>handle swap >>info ;
187 M: event-stream dispose*
189 [ info>> remove-event-source-callback ]
190 [ handle>> disable-event-stream ]
191 [ handle>> FSEventStreamInvalidate ]
192 [ handle>> FSEventStreamRelease ]