author | Stefan Vogel <sv@exept.de> |
Fri, 27 Oct 2017 16:14:37 +0200 | |
branch | expecco_2_11_1_branch |
changeset 22329 | 20662662693b |
parent 21096 | b14f363d7d3b |
child 21131 | d1acc3e2e4a1 |
permissions | -rw-r--r-- |
1 | 1 |
" |
5 | 2 |
COPYRIGHT (c) 1989 by Claus Gittinger |
177 | 3 |
All Rights Reserved |
1 | 4 |
|
5 |
This software is furnished under a license and may be used |
|
6 |
only in accordance with the terms of that license and with the |
|
7 |
inclusion of the above copyright notice. This software may not |
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8 |
be provided or otherwise made available to, or used by, any |
|
9 |
other person. No title to or ownership of the software is |
|
10 |
hereby transferred. |
|
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" |
|
5407 | 12 |
"{ Package: 'stx:libbasic' }" |
13 |
||
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class: NonPositionableExternalStream
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"{ NameSpace: Smalltalk }" |
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class: NonPositionableExternalStream
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No longer a subclass of UnboundedExternalStream, now subclass of ExternalStream.
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ExternalStream subclass:#NonPositionableExternalStream |
1295 | 17 |
instanceVariableNames:'' |
18 |
classVariableNames:'StdInStream StdOutStream StdErrorStream' |
|
19 |
poolDictionaries:'' |
|
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category:'Streams-External' |
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1 | 21 |
! |
22 |
||
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!NonPositionableExternalStream primitiveDefinitions! |
24 |
%{ |
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#ifndef _STDIO_H_INCLUDED_ |
27 |
# include <stdio.h> |
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28 |
# define _STDIO_H_INCLUDED_ |
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#endif |
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#ifndef REMOVE_LATER |
32 |
# define __win32_stdout() stdout |
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# define __win32_stderr() stderr |
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# define __win32_stdin() stdin |
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35 |
#else |
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36 |
extern FILE *__win32_stdin(); |
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extern FILE *__win32_stderr(); |
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extern FILE *__win32_stdout(); |
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#endif |
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||
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%} |
42 |
||
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! ! |
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||
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!NonPositionableExternalStream class methodsFor:'documentation'! |
46 |
||
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copyright |
|
48 |
" |
|
49 |
COPYRIGHT (c) 1989 by Claus Gittinger |
|
177 | 50 |
All Rights Reserved |
88 | 51 |
|
52 |
This software is furnished under a license and may be used |
|
53 |
only in accordance with the terms of that license and with the |
|
54 |
inclusion of the above copyright notice. This software may not |
|
55 |
be provided or otherwise made available to, or used by, any |
|
56 |
other person. No title to or ownership of the software is |
|
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hereby transferred. |
|
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" |
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! |
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||
61 |
documentation |
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" |
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This class provides common protocol for all non-positionable, |
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external streams. Concrete subclasses are terminal streams, pipe streams, |
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PrinterStreams, Sockets etc. |
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||
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There are three special instances of this class, representing stdin, |
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stdout and stderr of the smalltalk/X process (see Unix manuals, if you |
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20806 | 69 |
don't know what those are used for). These special streams are bound to |
177 | 70 |
to globals Stdin, Stdout and Stderr at early initialization time |
71 |
(see Smalltalk>>initializeStandardStreams). |
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159 | 72 |
|
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The name of this class is a historical leftover - it should be called |
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'TTYStream' or similar. |
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[author:] |
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Claus Gittinger |
88 | 78 |
" |
216 | 79 |
! ! |
80 |
||
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!NonPositionableExternalStream class methodsFor:'instance creation'! |
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||
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forStderr |
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"{ Pragma: +optSpace }" |
85 |
||
613 | 86 |
"return a NonPositionableExternalStream object for writing to |
87 |
Unixes standard error output file descriptor" |
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88 |
||
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StdErrorStream isNil ifTrue:[ |
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StdErrorStream := self basicNew initializeForStderr |
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]. |
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^ StdErrorStream |
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! |
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||
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forStdin |
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"{ Pragma: +optSpace }" |
97 |
||
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"return a NonPositionableExternalStream object for reading from |
99 |
Unixes standard input file descriptor" |
|
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||
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StdInStream isNil ifTrue:[ |
177 | 102 |
StdInStream := self basicNew initializeForStdin |
88 | 103 |
]. |
104 |
^ StdInStream |
|
1 | 105 |
! |
106 |
||
107 |
forStdout |
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"{ Pragma: +optSpace }" |
109 |
||
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"return a NonPositionableExternalStream object for writing to |
111 |
Unixes standard output file descriptor" |
|
112 |
||
88 | 113 |
StdOutStream isNil ifTrue:[ |
177 | 114 |
StdOutStream := self basicNew initializeForStdout |
88 | 115 |
]. |
116 |
^ StdOutStream |
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! |
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makePTYPair |
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"return an array with two streams - the first one is the master, |
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the second the slave of a ptym/ptys pair. |
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This is much like a bidirectional pipe, but allows signals & |
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control chars to be passed through the connection. |
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This is needed to execute a shell in a view. |
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This is the higher level equivalent of OperatingSystem>>makePTYPair |
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(which returns an array of file-descriptors)." |
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|ptyPair master slave| |
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ptyPair := OperatingSystem makePTYPair. |
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ptyPair notNil ifTrue:[ |
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master := self forReadWriteToFileDescriptor:(ptyPair at:1). |
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master buffered:false. |
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slave := self forReadWriteToFileDescriptor:(ptyPair at:2). |
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slave buffered:false. |
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ptyPair at:1 put:master. |
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ptyPair at:2 put:slave. |
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^ ptyPair |
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]. |
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^ nil |
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|
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" |
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ExternalStream makePTYPair. |
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" |
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"Modified: 29.2.1996 / 18:28:36 / cg" |
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! |
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makePipe |
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"return an array with two streams - the first one for reading, |
151 |
the second for writing. |
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This is the higher level equivalent of OperatingSystem>>makePipe |
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(which returns an array of file-descriptors)." |
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|
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#retry makePipe after a failed try and garbageCollection
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|pipe rs ws| |
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|
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#retry makePipe after a failed try and garbageCollection
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157 |
pipe := OperatingSystem makePipe. |
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158 |
pipe isNil ifTrue:[ |
16348 | 159 |
"/ ok, maybe someone has forgotten to close a stream; enforce finalization and try again |
160 |
'makePipe: enforcing finalization to close any open streams' infoPrintCR. |
|
161 |
ObjectMemory garbageCollect; finalize. |
|
162 |
pipe := OperatingSystem makePipe. |
|
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#retry makePipe after a failed try and garbageCollection
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163 |
]. |
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filePointer -> handle migration
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164 |
|
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165 |
pipe notNil ifTrue:[ |
16348 | 166 |
rs := self forFileDescriptor:(pipe at:1) mode:#readonly buffered:false handleType:#pipeFilePointer. |
167 |
ws := self forFileDescriptor:(pipe at:2) mode:#writeonly buffered:false handleType:#pipeFilePointer. |
|
168 |
^ Array with:rs with:ws |
|
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169 |
]. |
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170 |
^ nil |
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171 |
|
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" |
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|pipe rs ws| |
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174 |
|
7541 | 175 |
pipe := NonPositionableExternalStream makePipe. |
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176 |
rs := pipe at:1. |
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177 |
ws := pipe at:2. |
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178 |
|
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179 |
'read ...'. |
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180 |
[ |
16348 | 181 |
1 to:10 do:[:i | |
182 |
Transcript showCR:rs nextLine |
|
183 |
]. |
|
184 |
rs close. |
|
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185 |
] forkAt:7. |
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186 |
|
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187 |
'write ...'. |
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188 |
[ |
16348 | 189 |
1 to:10 do:[:i | |
190 |
ws nextPutAll:'hello world '; nextPutAll:i printString; cr |
|
191 |
]. |
|
192 |
ws close. |
|
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193 |
] fork. |
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194 |
" |
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195 |
|
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196 |
"Modified: 29.2.1996 / 18:28:36 / cg" |
613 | 197 |
! ! |
198 |
||
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199 |
!NonPositionableExternalStream methodsFor:'accessing'! |
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class: NonPositionableExternalStream
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200 |
|
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class: NonPositionableExternalStream
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201 |
buffered:aBoolean |
16348 | 202 |
"do not allow to change to buffered mode - ignore true here" |
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class: NonPositionableExternalStream
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203 |
|
16348 | 204 |
aBoolean ifFalse:[ |
205 |
super buffered:false. |
|
206 |
]. |
|
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207 |
! ! |
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|
208 |
|
613 | 209 |
!NonPositionableExternalStream methodsFor:'error handling'! |
210 |
||
211 |
positionError |
|
2965 | 212 |
"{ Pragma: +optSpace }" |
213 |
||
613 | 214 |
"notify that this stream has no concept of a position" |
215 |
||
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216 |
^ PositionError raiseRequestWith:self |
4559 | 217 |
|
218 |
" |
|
219 |
Stderr positionError |
|
220 |
" |
|
19073 | 221 |
! |
222 |
||
223 |
writeError:errorNumber |
|
20256 | 224 |
"report an error, that some write error occurred. |
19073 | 225 |
Redefined to care for writeErrors on stdout and stderr, |
226 |
which happens under linux, if the console is closed while I am running. |
|
227 |
In this case, we ignore the error." |
|
228 |
||
229 |
((self == Stderr) or:[self == Stdout]) ifTrue:[ |
|
20256 | 230 |
^ self |
19073 | 231 |
]. |
232 |
super writeError:errorNumber |
|
613 | 233 |
! ! |
234 |
||
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235 |
!NonPositionableExternalStream methodsFor:'initialization'! |
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236 |
|
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237 |
initialize |
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238 |
"non-positionable streams do not work well when buffered" |
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|
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240 |
super initialize. |
20105 | 241 |
position := nil. "I am not positionable (reading and writing simultaneously)" |
15922 | 242 |
buffered := false. |
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! ! |
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244 |
|
20368 | 245 |
|
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!NonPositionableExternalStream methodsFor:'non homogenous reading'! |
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|
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nextBytes:count into:anObject startingAt:start |
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"read the next count bytes into an object and return the number of |
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bytes read or the number of bytes read, if EOF is encountered before. |
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parents:
7682
diff
changeset
|
251 |
An exception is raised if the connection is broken. |
9c2cd42e4667
Provide a #nextBytes:into:startingAt: that does not block the whole ST/X
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parents:
7682
diff
changeset
|
252 |
|
9c2cd42e4667
Provide a #nextBytes:into:startingAt: that does not block the whole ST/X
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parents:
7682
diff
changeset
|
253 |
Redefined here to avoid blocking of ST/X when waiting for io. |
9c2cd42e4667
Provide a #nextBytes:into:startingAt: that does not block the whole ST/X
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parents:
7682
diff
changeset
|
254 |
Instead only the calling thread will block" |
9c2cd42e4667
Provide a #nextBytes:into:startingAt: that does not block the whole ST/X
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parents:
7682
diff
changeset
|
255 |
|
8815 | 256 |
|remaining offset nRead| |
7861
9c2cd42e4667
Provide a #nextBytes:into:startingAt: that does not block the whole ST/X
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parents:
7682
diff
changeset
|
257 |
|
9c2cd42e4667
Provide a #nextBytes:into:startingAt: that does not block the whole ST/X
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parents:
7682
diff
changeset
|
258 |
count == 0 ifTrue:[ |
10327 | 259 |
^ 0. |
7861
9c2cd42e4667
Provide a #nextBytes:into:startingAt: that does not block the whole ST/X
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parents:
7682
diff
changeset
|
260 |
]. |
9c2cd42e4667
Provide a #nextBytes:into:startingAt: that does not block the whole ST/X
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parents:
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diff
changeset
|
261 |
|
9c2cd42e4667
Provide a #nextBytes:into:startingAt: that does not block the whole ST/X
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parents:
7682
diff
changeset
|
262 |
remaining := count. |
9c2cd42e4667
Provide a #nextBytes:into:startingAt: that does not block the whole ST/X
Stefan Vogel <sv@exept.de>
parents:
7682
diff
changeset
|
263 |
offset := start. |
9c2cd42e4667
Provide a #nextBytes:into:startingAt: that does not block the whole ST/X
Stefan Vogel <sv@exept.de>
parents:
7682
diff
changeset
|
264 |
|
10327 | 265 |
[ |
266 |
nRead := self nextAvailableBytes:remaining into:anObject startingAt:offset. |
|
267 |
nRead == 0 ifTrue:[ |
|
268 |
"atEnd does a readWait" |
|
269 |
self atEnd not. |
|
270 |
] ifFalse:[ |
|
271 |
remaining := remaining - nRead. |
|
272 |
offset := offset + nRead. |
|
273 |
remaining ~~ 0. |
|
274 |
] |
|
7861
9c2cd42e4667
Provide a #nextBytes:into:startingAt: that does not block the whole ST/X
Stefan Vogel <sv@exept.de>
parents:
7682
diff
changeset
|
275 |
] whileTrue. |
9c2cd42e4667
Provide a #nextBytes:into:startingAt: that does not block the whole ST/X
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parents:
7682
diff
changeset
|
276 |
|
9c2cd42e4667
Provide a #nextBytes:into:startingAt: that does not block the whole ST/X
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parents:
7682
diff
changeset
|
277 |
^ count - remaining |
20105 | 278 |
! |
279 |
||
280 |
nextInt16MSB:msbFlag |
|
281 |
"redefined to wait for data on pipes and sockets" |
|
282 |
||
283 |
|bytes nRead| |
|
284 |
||
285 |
bytes := ByteArray uninitializedNew:2. |
|
286 |
nRead := self nextBytes:2 into:bytes startingAt:1. |
|
287 |
nRead ~~ 2 ifTrue:[ |
|
288 |
^ self pastEndRead. |
|
289 |
]. |
|
290 |
^ bytes signedInt16At:1 MSB:msbFlag. |
|
291 |
! |
|
292 |
||
293 |
nextInt32MSB:msbFlag |
|
294 |
"redefined to wait for data on pipes and sockets" |
|
295 |
||
296 |
|bytes nRead| |
|
297 |
||
298 |
bytes := ByteArray uninitializedNew:4. |
|
299 |
nRead := self nextBytes:4 into:bytes startingAt:1. |
|
300 |
nRead ~~ 4 ifTrue:[ |
|
301 |
^ self pastEndRead. |
|
302 |
]. |
|
303 |
^ bytes signedInt32At:1 MSB:msbFlag. |
|
304 |
! |
|
305 |
||
21096 | 306 |
nextInt64MSB:msbFlag |
307 |
"redefined to wait for data on pipes and sockets" |
|
308 |
||
309 |
|bytes nRead| |
|
310 |
||
311 |
bytes := ByteArray uninitializedNew:8. |
|
312 |
nRead := self nextBytes:8 into:bytes startingAt:1. |
|
313 |
nRead ~~ 8 ifTrue:[ |
|
314 |
^ self pastEndRead. |
|
315 |
]. |
|
316 |
^ bytes signedInt64At:1 MSB:msbFlag. |
|
317 |
! |
|
318 |
||
20105 | 319 |
nextUnsignedInt16MSB:msbFlag |
320 |
"redefined to wait for data on pipes and sockets" |
|
321 |
||
322 |
|bytes nRead| |
|
323 |
||
21096 | 324 |
bytes := ByteArray uninitializedNew:2. |
20105 | 325 |
nRead := self nextBytes:2 into:bytes startingAt:1. |
326 |
nRead ~~ 2 ifTrue:[ |
|
327 |
^ self pastEndRead. |
|
328 |
]. |
|
329 |
^ bytes unsignedInt16At:1 MSB:msbFlag. |
|
330 |
! |
|
331 |
||
332 |
nextUnsignedInt32MSB:msbFlag |
|
333 |
"redefined to wait for data on pipes and sockets" |
|
334 |
||
335 |
|bytes nRead| |
|
336 |
||
337 |
bytes := ByteArray uninitializedNew:4. |
|
338 |
nRead := self nextBytes:4 into:bytes startingAt:1. |
|
339 |
nRead ~~ 4 ifTrue:[ |
|
340 |
^ self pastEndRead. |
|
341 |
]. |
|
342 |
^ bytes unsignedInt32At:1 MSB:msbFlag. |
|
21096 | 343 |
! |
344 |
||
345 |
nextUnsignedInt64MSB:msbFlag |
|
346 |
"redefined to wait for data on pipes and sockets" |
|
347 |
||
348 |
|bytes nRead| |
|
349 |
||
350 |
bytes := ByteArray uninitializedNew:8. |
|
351 |
nRead := self nextBytes:8 into:bytes startingAt:1. |
|
352 |
nRead ~~ 8 ifTrue:[ |
|
353 |
^ self pastEndRead. |
|
354 |
]. |
|
355 |
^ bytes unsignedInt64At:1 MSB:msbFlag. |
|
7861
9c2cd42e4667
Provide a #nextBytes:into:startingAt: that does not block the whole ST/X
Stefan Vogel <sv@exept.de>
parents:
7682
diff
changeset
|
356 |
! ! |
9c2cd42e4667
Provide a #nextBytes:into:startingAt: that does not block the whole ST/X
Stefan Vogel <sv@exept.de>
parents:
7682
diff
changeset
|
357 |
|
613 | 358 |
!NonPositionableExternalStream methodsFor:'positioning'! |
359 |
||
360 |
position |
|
20105 | 361 |
position isNil ifTrue:[ |
362 |
^ self positionError. |
|
363 |
]. |
|
364 |
^ position |
|
1 | 365 |
! |
366 |
||
20105 | 367 |
position:newPosition |
368 |
(position isNil or:[newPosition < position]) ifTrue:[ |
|
369 |
"there is no turning back" |
|
370 |
^ self positionError |
|
371 |
]. |
|
372 |
self skip:newPosition - position. |
|
613 | 373 |
! |
44 | 374 |
|
613 | 375 |
skip:numberToSkip |
7241 | 376 |
"skip count bytes/characters, return the receiver. |
377 |
Re-redefined since PositionableStream redefined it." |
|
613 | 378 |
|
16207
923f92b4f0e8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16187
diff
changeset
|
379 |
"don't know how to unread ..." |
613 | 380 |
numberToSkip < 0 ifTrue:[ |
20105 | 381 |
^ self positionError. |
88 | 382 |
]. |
16207
923f92b4f0e8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16187
diff
changeset
|
383 |
numberToSkip timesRepeat:[self next]. |
4467 | 384 |
|
385 |
"Modified: / 30.7.1999 / 12:42:12 / cg" |
|
1 | 386 |
! ! |
387 |
||
177 | 388 |
!NonPositionableExternalStream methodsFor:'printing & storing'! |
389 |
||
390 |
printOn:aStream |
|
2965 | 391 |
"{ Pragma: +optSpace }" |
392 |
||
4392 | 393 |
"append a user printed representation of the receiver to aStream. |
394 |
The format is suitable for a human - not meant to be read back." |
|
177 | 395 |
|
2965 | 396 |
|myName| |
397 |
||
177 | 398 |
self == Stdin ifTrue:[ |
10327 | 399 |
myName := 'Stdin'. |
2965 | 400 |
] ifFalse:[ |
10327 | 401 |
self == Stdout ifTrue:[ |
402 |
myName := 'Stdout'. |
|
403 |
] ifFalse:[ |
|
404 |
self == Stderr ifTrue:[ |
|
405 |
myName := 'Stderr'. |
|
406 |
] |
|
407 |
] |
|
177 | 408 |
]. |
2965 | 409 |
|
410 |
myName notNil ifTrue:[ |
|
10327 | 411 |
aStream nextPutAll:myName. |
412 |
^ self |
|
177 | 413 |
]. |
414 |
super printOn:aStream |
|
415 |
! |
|
416 |
||
417 |
storeOn:aStream |
|
2965 | 418 |
"{ Pragma: +optSpace }" |
419 |
||
213 | 420 |
"append a printed representation of the receiver on aStream, from |
421 |
which the receiver can be reconstructed." |
|
177 | 422 |
|
423 |
((self == Stdin) |
|
424 |
or:[self == Stdout |
|
425 |
or:[self == Stderr]]) ifTrue:[ |
|
426 |
^ self printOn:aStream |
|
427 |
]. |
|
428 |
super storeOn:aStream |
|
429 |
! ! |
|
430 |
||
20680 | 431 |
!NonPositionableExternalStream protectedMethodsFor:'private'! |
432 |
||
433 |
closeFile |
|
434 |
|semasToSignal| |
|
435 |
||
436 |
handle notNil ifTrue:[ |
|
437 |
"make sure, that no select is performed on closed file descriptors" |
|
21056 | 438 |
semasToSignal := Processor disableFd:self fileDescriptor doSignal:false. |
20680 | 439 |
super closeFile. |
440 |
||
441 |
"tell the waiters that they must not wait any longer" |
|
442 |
semasToSignal do:[:eachSema| |
|
443 |
eachSema signalForAll. |
|
444 |
]. |
|
445 |
]. |
|
446 |
! ! |
|
447 |
||
613 | 448 |
!NonPositionableExternalStream methodsFor:'private'! |
360 | 449 |
|
5407 | 450 |
handleForStderr |
451 |
"{ Pragma: +optSpace }" |
|
452 |
||
453 |
"return a stderr handle" |
|
454 |
||
455 |
%{ |
|
18313 | 456 |
#ifdef __SCHTEAM__ |
457 |
return context._RETURN( StandardErrorStream ); |
|
458 |
#else |
|
19860
324edacff5cc
unified cpu and os defines;
Claus Gittinger <cg@exept.de>
parents:
19073
diff
changeset
|
459 |
# ifdef __win32__ |
12677
aeab74b04f0b
Use __MKEXTERNALADDRESS() instead of __MKOBJ()
Stefan Vogel <sv@exept.de>
parents:
12395
diff
changeset
|
460 |
RETURN ( __MKEXTERNALADDRESS( __win32_stderr() )); |
18313 | 461 |
# else |
12677
aeab74b04f0b
Use __MKEXTERNALADDRESS() instead of __MKOBJ()
Stefan Vogel <sv@exept.de>
parents:
12395
diff
changeset
|
462 |
RETURN ( __MKEXTERNALADDRESS(stderr) ); |
18313 | 463 |
# endif |
10327 | 464 |
#endif |
5407 | 465 |
%} |
466 |
! |
|
467 |
||
468 |
handleForStdin |
|
469 |
"{ Pragma: +optSpace }" |
|
470 |
||
471 |
"return a stdin handle" |
|
472 |
||
473 |
%{ |
|
18313 | 474 |
#ifdef __SCHTEAM__ |
475 |
return context._RETURN( StandardInputStream ); |
|
476 |
#else |
|
19860
324edacff5cc
unified cpu and os defines;
Claus Gittinger <cg@exept.de>
parents:
19073
diff
changeset
|
477 |
# ifdef __win32__ |
12677
aeab74b04f0b
Use __MKEXTERNALADDRESS() instead of __MKOBJ()
Stefan Vogel <sv@exept.de>
parents:
12395
diff
changeset
|
478 |
RETURN ( __MKEXTERNALADDRESS( __win32_stdin() )); |
18313 | 479 |
# else |
12677
aeab74b04f0b
Use __MKEXTERNALADDRESS() instead of __MKOBJ()
Stefan Vogel <sv@exept.de>
parents:
12395
diff
changeset
|
480 |
RETURN ( __MKEXTERNALADDRESS(stdin) ); |
18313 | 481 |
# endif |
10327 | 482 |
#endif |
5407 | 483 |
%} |
484 |
! |
|
485 |
||
486 |
handleForStdout |
|
487 |
"{ Pragma: +optSpace }" |
|
488 |
||
489 |
"return a stdout handle" |
|
490 |
||
491 |
%{ |
|
18313 | 492 |
#ifdef __SCHTEAM__ |
493 |
return context._RETURN( StandardOutputStream ); |
|
494 |
#else |
|
19860
324edacff5cc
unified cpu and os defines;
Claus Gittinger <cg@exept.de>
parents:
19073
diff
changeset
|
495 |
# ifdef __win32__ |
12677
aeab74b04f0b
Use __MKEXTERNALADDRESS() instead of __MKOBJ()
Stefan Vogel <sv@exept.de>
parents:
12395
diff
changeset
|
496 |
RETURN ( __MKEXTERNALADDRESS( __win32_stdout() )); |
18313 | 497 |
# else |
12677
aeab74b04f0b
Use __MKEXTERNALADDRESS() instead of __MKOBJ()
Stefan Vogel <sv@exept.de>
parents:
12395
diff
changeset
|
498 |
RETURN ( __MKEXTERNALADDRESS(stdout) ); |
18313 | 499 |
# endif |
10327 | 500 |
#endif |
5407 | 501 |
%} |
502 |
! |
|
503 |
||
613 | 504 |
initializeForStderr |
2965 | 505 |
"{ Pragma: +optSpace }" |
506 |
||
613 | 507 |
"setup for writing to stderr" |
269 | 508 |
|
20256 | 509 |
mode := #writeonly. "since stderr may be redirected to a pipe, reading is forbidden" |
613 | 510 |
buffered := false. |
20105 | 511 |
position := 0. "only writing - can keep track of position" |
12395
1db7ea277c93
filePointer -> handle migration
Claus Gittinger <cg@exept.de>
parents:
11907
diff
changeset
|
512 |
handle := self handleForStderr. |
12754 | 513 |
handleType := #filePointer. |
5407 | 514 |
OperatingSystem isMSWINDOWSlike ifTrue:[ |
20105 | 515 |
eolMode := #crlf |
5407 | 516 |
] |
613 | 517 |
! |
1 | 518 |
|
519 |
initializeForStdin |
|
2965 | 520 |
"{ Pragma: +optSpace }" |
521 |
||
44 | 522 |
"setup for reading stdin" |
523 |
||
1 | 524 |
mode := #readonly. |
6843
ef53f65b7364
stdout/err must not be buffered (sending prompts without NL)
Claus Gittinger <cg@exept.de>
parents:
5918
diff
changeset
|
525 |
"/ buffered := true. |
ef53f65b7364
stdout/err must not be buffered (sending prompts without NL)
Claus Gittinger <cg@exept.de>
parents:
5918
diff
changeset
|
526 |
buffered := false. |
20105 | 527 |
position := 0. "only reading - can keep track of position" |
12754 | 528 |
handleType := #filePointer. |
12395
1db7ea277c93
filePointer -> handle migration
Claus Gittinger <cg@exept.de>
parents:
11907
diff
changeset
|
529 |
handle := self handleForStdin. |
1 | 530 |
! |
531 |
||
532 |
initializeForStdout |
|
2965 | 533 |
"{ Pragma: +optSpace }" |
534 |
||
44 | 535 |
"setup for writing to stdout" |
536 |
||
20105 | 537 |
mode := #writeonly. "since stdout may be redirected to a pipe, reading is forbidden" |
10 | 538 |
buffered := false. |
20105 | 539 |
position := 0. "only writing - can keep track of position" |
12395
1db7ea277c93
filePointer -> handle migration
Claus Gittinger <cg@exept.de>
parents:
11907
diff
changeset
|
540 |
handle := self handleForStdout. |
12754 | 541 |
handleType := #filePointer. |
5407 | 542 |
OperatingSystem isMSWINDOWSlike ifTrue:[ |
20105 | 543 |
eolMode := #crlf |
5407 | 544 |
] |
1 | 545 |
! |
546 |
||
547 |
reOpen |
|
2965 | 548 |
"{ Pragma: +optSpace }" |
549 |
||
44 | 550 |
"reopen the stream after an image restart. |
551 |
If I am one of the standard streams, reopen is easy" |
|
1 | 552 |
|
477
8710aba7876b
oops - making id's real objects requires a store macro
Claus Gittinger <cg@exept.de>
parents:
475
diff
changeset
|
553 |
(self == StdInStream) ifTrue:[ |
177 | 554 |
^ self initializeForStdin |
1 | 555 |
]. |
477
8710aba7876b
oops - making id's real objects requires a store macro
Claus Gittinger <cg@exept.de>
parents:
475
diff
changeset
|
556 |
(self == StdOutStream) ifTrue:[ |
177 | 557 |
^ self initializeForStdout |
1 | 558 |
]. |
477
8710aba7876b
oops - making id's real objects requires a store macro
Claus Gittinger <cg@exept.de>
parents:
475
diff
changeset
|
559 |
(self == StdErrorStream) ifTrue:[ |
177 | 560 |
^ self initializeForStderr |
1 | 561 |
]. |
562 |
^ super reOpen |
|
563 |
! ! |
|
613 | 564 |
|
565 |
!NonPositionableExternalStream methodsFor:'queries'! |
|
566 |
||
5851
6823cc642d60
only do readWait for pipes and sockets.
Claus Gittinger <cg@exept.de>
parents:
5407
diff
changeset
|
567 |
atEnd |
21028 | 568 |
"return true, if position is at end. |
569 |
Notice: this is a blocking operation, as we do not know in advance, |
|
570 |
if there will be anything to read |
|
571 |
(i.e. if the partner will send more or close the stream). |
|
572 |
If you want to check for available data, |
|
573 |
use nextAvailable:, or canReadWithoutBlocking" |
|
5851
6823cc642d60
only do readWait for pipes and sockets.
Claus Gittinger <cg@exept.de>
parents:
5407
diff
changeset
|
574 |
|
5918 | 575 |
(self == StdInStream) ifTrue:[ |
20225 | 576 |
OperatingSystem hasConsole ifFalse:[ |
577 |
^ true |
|
578 |
] |
|
5918 | 579 |
]. |
580 |
||
20685 | 581 |
handle notNil ifTrue:[ |
582 |
"first, wait to avoid blocking on the read. |
|
583 |
On end of stream or error, readWait will return" |
|
5851
6823cc642d60
only do readWait for pipes and sockets.
Claus Gittinger <cg@exept.de>
parents:
5407
diff
changeset
|
584 |
|
20685 | 585 |
self readWaitWithTimeoutMs:nil. |
586 |
]. |
|
20225 | 587 |
handle isNil ifTrue:[ |
20685 | 588 |
"we are closed or were closed while waiting - so we are at the end" |
20225 | 589 |
^ true. |
590 |
]. |
|
5851
6823cc642d60
only do readWait for pipes and sockets.
Claus Gittinger <cg@exept.de>
parents:
5407
diff
changeset
|
591 |
^ super atEnd. |
6823cc642d60
only do readWait for pipes and sockets.
Claus Gittinger <cg@exept.de>
parents:
5407
diff
changeset
|
592 |
! |
6823cc642d60
only do readWait for pipes and sockets.
Claus Gittinger <cg@exept.de>
parents:
5407
diff
changeset
|
593 |
|
17607
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
594 |
collectionSize |
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
595 |
"we do not know our size" |
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
596 |
|
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
597 |
^ self positionError |
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
598 |
! |
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
599 |
|
5407 | 600 |
isPositionable |
601 |
"return true, if the stream supports positioning (this one is not)" |
|
602 |
||
603 |
^ false |
|
11455 | 604 |
! |
605 |
||
17607
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
606 |
remainingSize |
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
607 |
"we do not know our size" |
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
608 |
|
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
609 |
^ self positionError |
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
610 |
! |
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
611 |
|
12395
1db7ea277c93
filePointer -> handle migration
Claus Gittinger <cg@exept.de>
parents:
11907
diff
changeset
|
612 |
size |
11455 | 613 |
"we do not know our size" |
614 |
||
615 |
^ self positionError |
|
613 | 616 |
! ! |
617 |
||
10349
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
618 |
!NonPositionableExternalStream methodsFor:'reading'! |
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
619 |
|
14758
6a70a7006093
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
12754
diff
changeset
|
620 |
next |
6a70a7006093
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
12754
diff
changeset
|
621 |
"return the next element, if available. |
6a70a7006093
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
12754
diff
changeset
|
622 |
If nothing is available, this does never raise a read-beyond end signal. |
6a70a7006093
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
12754
diff
changeset
|
623 |
Instead, nil is returned immediately. |
6a70a7006093
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
12754
diff
changeset
|
624 |
|
6a70a7006093
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
12754
diff
changeset
|
625 |
Redefined, to wait on pipes and sockets" |
6a70a7006093
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
12754
diff
changeset
|
626 |
|
18798 | 627 |
self readWaitWithTimeoutMs:nil. |
14758
6a70a7006093
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
12754
diff
changeset
|
628 |
^ super next |
6a70a7006093
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
12754
diff
changeset
|
629 |
! |
6a70a7006093
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
12754
diff
changeset
|
630 |
|
20105 | 631 |
nextByte |
632 |
"redefined, to wait on pipes and sockets" |
|
15796
b3fdd3c2aec2
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
15720
diff
changeset
|
633 |
|
18798 | 634 |
self readWaitWithTimeoutMs:nil. |
20105 | 635 |
^ super nextByte |
636 |
! |
|
637 |
||
638 |
nextLine |
|
639 |
"return the characters upTo (but excluding) the next cr (carriage return) |
|
640 |
character (i.e. read a single line of text). |
|
641 |
If the previous-to-last character is a cr, this is also removed, |
|
642 |
so it's possible to read alien (i.e. ms-dos) text as well. |
|
643 |
Redefined to not block forever if no cr is read." |
|
644 |
||
20175 | 645 |
|answerStream char wasBinary available "{ Class:SmallInteger }"| |
20105 | 646 |
|
20112 | 647 |
answerStream := WriteStream on:(String uninitializedNew:80). |
20105 | 648 |
[ |
649 |
available := self numAvailableForRead. |
|
20113 | 650 |
wasBinary := binary. "temporarily set to text mode" |
651 |
binary := false. |
|
20105 | 652 |
available timesRepeat:[ |
20148 | 653 |
char := super nextOrNil. "don't wait - we know that there is data" |
20105 | 654 |
char == Character cr ifTrue:[ |
655 |
(answerStream size ~~ 0 and:[answerStream last == Character return]) ifTrue:[ |
|
656 |
answerStream backStep. |
|
657 |
]. |
|
20113 | 658 |
binary := wasBinary. |
20105 | 659 |
^ answerStream contents. |
660 |
]. |
|
20256 | 661 |
char notNil ifTrue:[ |
20148 | 662 |
answerStream nextPut:char. |
663 |
]. |
|
20105 | 664 |
]. |
20113 | 665 |
binary := wasBinary. "restore saved mode" |
666 |
||
20105 | 667 |
"#atEnd waits for new data or EOF" |
668 |
self atEnd ifTrue:[ |
|
669 |
answerStream size == 0 ifTrue:[ |
|
670 |
^ self pastEndRead. |
|
671 |
]. |
|
672 |
^ answerStream contents. |
|
673 |
]. |
|
674 |
] loop. |
|
675 |
||
676 |
"not reached" |
|
15796
b3fdd3c2aec2
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
15720
diff
changeset
|
677 |
! |
b3fdd3c2aec2
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
15720
diff
changeset
|
678 |
|
10349
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
679 |
nextOrNil |
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
680 |
"like #next, this returns the next element, if available. |
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
681 |
If nothing is available, this does never raise a read-beyond end signal. |
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
682 |
Instead, nil is returned immediately. |
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
683 |
|
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
684 |
Redefined, to wait on pipes and sockets" |
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
685 |
|
20680 | 686 |
self readWaitWithTimeoutMs:nil. |
687 |
handle isNil ifTrue:[ |
|
688 |
"we were closed while waiting - so we are at the end" |
|
689 |
^ nil. |
|
690 |
]. |
|
14758
6a70a7006093
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
12754
diff
changeset
|
691 |
^ super nextOrNil |
6a70a7006093
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
12754
diff
changeset
|
692 |
! |
6a70a7006093
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
12754
diff
changeset
|
693 |
|
6a70a7006093
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
12754
diff
changeset
|
694 |
peek |
6a70a7006093
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
12754
diff
changeset
|
695 |
"Redefined, to wait on pipes and sockets" |
6a70a7006093
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
12754
diff
changeset
|
696 |
|
18798 | 697 |
self readWaitWithTimeoutMs:nil. |
14758
6a70a7006093
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
12754
diff
changeset
|
698 |
^ super peek |
10349
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
699 |
! |
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
700 |
|
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
701 |
peekOrNil |
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
702 |
"like #peek, this returns the next element, if available. |
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
703 |
If nothing is available, this does never raise a read-beyond end signal. |
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
704 |
Instead, nil is returned immediately. |
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
705 |
|
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
706 |
Redefined, to wait on pipes and sockets" |
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
707 |
|
20680 | 708 |
self readWaitWithTimeoutMs:nil. |
709 |
handle isNil ifTrue:[ |
|
710 |
"we were closed while waiting - so we are at the end" |
|
711 |
^ nil. |
|
712 |
]. |
|
10349
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
713 |
^ self peek |
18798 | 714 |
! |
715 |
||
20105 | 716 |
upTo:anObject into:aStream |
717 |
"read a collection of all objects up-to anObject and append these |
|
20256 | 718 |
elements to aStream, but excluding anObject. |
20105 | 719 |
The next read operation will return the element after anObject. |
720 |
(i.e. anObject is considered a separator, which is skipped) |
|
721 |
Similar to #through:, but the matching object is not included in the returned collection. |
|
722 |
If anObject is not encountered, all elements up to the end are read and returned. |
|
723 |
Compare this with #through: which also reads up to some object |
|
724 |
and also positions behind it, but DOES include it in the returned value." |
|
725 |
||
726 |
|element available "{ Class:SmallInteger }"| |
|
18798 | 727 |
|
20105 | 728 |
[ |
729 |
available := self numAvailableForRead. |
|
730 |
available timesRepeat:[ |
|
731 |
element := super next. "we know that there is data" |
|
732 |
element = anObject ifTrue:[ |
|
733 |
^ self. |
|
734 |
]. |
|
735 |
aStream nextPut:element. |
|
736 |
]. |
|
737 |
"#atEnd waits for new data or EOF" |
|
738 |
self atEnd ifTrue:[ |
|
739 |
^ self. |
|
740 |
]. |
|
741 |
] loop. |
|
742 |
||
743 |
"not reached" |
|
10349
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
744 |
! ! |
cbfa00bba11d
Speedup ExternalStream>>#nextOrNil and ExternalStream>>#peekOrNil.
Stefan Vogel <sv@exept.de>
parents:
10327
diff
changeset
|
745 |
|
7497
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7241
diff
changeset
|
746 |
!NonPositionableExternalStream methodsFor:'writing'! |
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7241
diff
changeset
|
747 |
|
17642
5988beff84f7
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
17607
diff
changeset
|
748 |
nextPutAll:aCollection |
5988beff84f7
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
17607
diff
changeset
|
749 |
"nextPutBytes handles non-blocking io in receiver" |
5988beff84f7
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
17607
diff
changeset
|
750 |
|
5988beff84f7
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
17607
diff
changeset
|
751 |
self nextPutBytes:aCollection size from:aCollection startingAt:1. |
5988beff84f7
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
17607
diff
changeset
|
752 |
^ self. |
5988beff84f7
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
17607
diff
changeset
|
753 |
! |
5988beff84f7
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
17607
diff
changeset
|
754 |
|
17607
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
755 |
nextPutAll:aCollection startingAt:start to:stop |
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
756 |
"redefined, to wait until stream is writable, to avoid blocking in a write" |
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
757 |
|
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
758 |
|count| |
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
759 |
|
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
760 |
count := stop-start+1. |
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
761 |
count ~= (self nextPutBytes:count from:aCollection startingAt:start) ifTrue:[ |
18313 | 762 |
"incomplete write" |
763 |
self writeError. |
|
17607
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
764 |
]. |
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
765 |
! |
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
766 |
|
7679 | 767 |
nextPutBytes:initialWriteCount from:buffer startingAt:initialOffset |
768 |
"redefined, to wait until stream is writable, to avoid blocking in a write" |
|
7497
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7241
diff
changeset
|
769 |
|
17607
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
770 |
|offset remaining wasBlocking| |
7497
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7241
diff
changeset
|
771 |
|
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7241
diff
changeset
|
772 |
offset := initialOffset. |
7679 | 773 |
remaining := initialWriteCount. |
7497
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7241
diff
changeset
|
774 |
|
7679 | 775 |
wasBlocking := self blocking:false. |
10327 | 776 |
[remaining ~~ 0] whileTrue:[ |
18313 | 777 |
|count| |
17607
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
778 |
|
18313 | 779 |
count := super nextPutBytes:remaining from:buffer startingAt:offset. |
7682
5d43745f59ac
only do a writeWait if previous non-blocking write failed to
Claus Gittinger <cg@exept.de>
parents:
7679
diff
changeset
|
780 |
|
18313 | 781 |
remaining := remaining - count. |
782 |
offset := offset + count. |
|
783 |
remaining ~~ 0 ifTrue:[ |
|
784 |
"Transcript showCR:'writeWait'." |
|
785 |
self writeWait. |
|
786 |
]. |
|
7497
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7241
diff
changeset
|
787 |
]. |
7679 | 788 |
wasBlocking ifTrue:[self blocking:true]. |
789 |
||
7497
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7241
diff
changeset
|
790 |
^ offset - initialOffset. |
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7241
diff
changeset
|
791 |
! ! |
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7241
diff
changeset
|
792 |
|
1295 | 793 |
!NonPositionableExternalStream class methodsFor:'documentation'! |
794 |
||
795 |
version |
|
18798 | 796 |
^ '$Header$' |
12677
aeab74b04f0b
Use __MKEXTERNALADDRESS() instead of __MKOBJ()
Stefan Vogel <sv@exept.de>
parents:
12395
diff
changeset
|
797 |
! |
aeab74b04f0b
Use __MKEXTERNALADDRESS() instead of __MKOBJ()
Stefan Vogel <sv@exept.de>
parents:
12395
diff
changeset
|
798 |
|
aeab74b04f0b
Use __MKEXTERNALADDRESS() instead of __MKOBJ()
Stefan Vogel <sv@exept.de>
parents:
12395
diff
changeset
|
799 |
version_CVS |
18798 | 800 |
^ '$Header$' |
1295 | 801 |
! ! |
17607
224f253b60c8
class: NonPositionableExternalStream
Stefan Vogel <sv@exept.de>
parents:
16348
diff
changeset
|
802 |