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-rw-r--r--generic/tclIO.c47
-rw-r--r--generic/tclIORChan.c8
-rw-r--r--tests/io.test185
-rw-r--r--tests/ioCmd.test26
4 files changed, 241 insertions, 25 deletions
diff --git a/generic/tclIO.c b/generic/tclIO.c
index aad576a..b7f895f 100644
--- a/generic/tclIO.c
+++ b/generic/tclIO.c
@@ -102,11 +102,30 @@ typedef struct CopyState {
Tcl_WideInt total; /* Total bytes transferred (written). */
Tcl_Interp *interp; /* Interp that started the copy. */
Tcl_Obj *cmdPtr; /* Command to be invoked at completion. */
+ int refCount; /* Claim count on the struct */
+ int bufInUse; /* Flag to govern access to buffer */
int bufSize; /* Size of appended buffer. */
char buffer[1]; /* Copy buffer, this must be the last
* field. */
} CopyState;
+static void
+PreserveCopyState(
+ CopyState *csPtr)
+{
+ csPtr->refCount++;
+}
+
+static void
+ReleaseCopyState(
+ CopyState *csPtr)
+{
+ if (--csPtr->refCount) {
+ return;
+ }
+ ckfree(csPtr);
+}
+
/*
* All static variables used in this file are collected into a single instance
* of the following structure. For multi-threaded implementations, there is
@@ -9085,9 +9104,13 @@ TclCopyChannel(
Tcl_IncrRefCount(cmdPtr);
}
csPtr->cmdPtr = cmdPtr;
+ csPtr->refCount = 1;
+ csPtr->bufInUse = 0;
inStatePtr->csPtrR = csPtr;
+ PreserveCopyState(csPtr);
outStatePtr->csPtrW = csPtr;
+ PreserveCopyState(csPtr);
if (moveBytes) {
return MoveBytes(csPtr);
@@ -9373,6 +9396,11 @@ CopyData(
/* Encoding control */
int underflow; /* Input underflow */
+ if (csPtr->bufInUse) {
+ return TCL_OK;
+ }
+ PreserveCopyState(csPtr);
+
inChan = (Tcl_Channel) csPtr->readPtr;
outChan = (Tcl_Channel) csPtr->writePtr;
inStatePtr = csPtr->readPtr->state;
@@ -9435,6 +9463,7 @@ CopyData(
sizeb = (int) csPtr->toRead;
}
+ csPtr->bufInUse = 1;
if (inBinary || sameEncoding) {
size = DoRead(inStatePtr->topChanPtr, csPtr->buffer, sizeb,
!GotFlag(inStatePtr, CHANNEL_NONBLOCKING));
@@ -9490,6 +9519,7 @@ CopyData(
TclDecrRefCount(bufObj);
bufObj = NULL;
}
+ ReleaseCopyState(csPtr);
return TCL_OK;
}
}
@@ -9510,6 +9540,7 @@ CopyData(
} else {
sizeb = WriteChars(outStatePtr->topChanPtr, buffer, sizeb);
}
+ csPtr->bufInUse = 0;
/*
* [Bug 2895565]. At this point 'size' still contains the number of
@@ -9581,6 +9612,7 @@ CopyData(
TclDecrRefCount(bufObj);
bufObj = NULL;
}
+ ReleaseCopyState(csPtr);
return TCL_OK;
}
@@ -9603,6 +9635,7 @@ CopyData(
TclDecrRefCount(bufObj);
bufObj = NULL;
}
+ ReleaseCopyState(csPtr);
return TCL_OK;
}
} /* while */
@@ -9618,7 +9651,7 @@ CopyData(
*/
total = csPtr->total;
- if (cmdPtr && interp) {
+ if (cmdPtr && interp && csPtr->cmdPtr) {
int code;
/*
@@ -9626,8 +9659,7 @@ CopyData(
* arguments. Note that StopCopy frees our saved reference to the
* original command obj.
*/
-
- cmdPtr = Tcl_DuplicateObj(cmdPtr);
+ cmdPtr = Tcl_DuplicateObj(csPtr->cmdPtr);
Tcl_IncrRefCount(cmdPtr);
StopCopy(csPtr);
Tcl_Preserve(interp);
@@ -9655,6 +9687,7 @@ CopyData(
}
}
}
+ ReleaseCopyState(csPtr);
return result;
}
@@ -9972,10 +10005,16 @@ StopCopy(
Tcl_DeleteChannelHandler(inChan, MBEvent, csPtr);
Tcl_DeleteChannelHandler(outChan, MBEvent, csPtr);
TclDecrRefCount(csPtr->cmdPtr);
+ csPtr->cmdPtr = NULL;
}
+ if (inStatePtr->csPtrR == NULL) {
+ return;
+ }
+ ReleaseCopyState(inStatePtr->csPtrR);
inStatePtr->csPtrR = NULL;
+ ReleaseCopyState(outStatePtr->csPtrW);
outStatePtr->csPtrW = NULL;
- ckfree(csPtr);
+ ReleaseCopyState(csPtr);
}
/*
diff --git a/generic/tclIORChan.c b/generic/tclIORChan.c
index 21c766e..a387410 100644
--- a/generic/tclIORChan.c
+++ b/generic/tclIORChan.c
@@ -1601,14 +1601,6 @@ ReflectWatch(
mask &= rcPtr->mode;
- if (mask == rcPtr->interest) {
- /*
- * Same old, same old, why should we do something?
- */
-
- return;
- }
-
rcPtr->interest = mask;
/*
diff --git a/tests/io.test b/tests/io.test
index 6b6ad6d..783bc75 100644
--- a/tests/io.test
+++ b/tests/io.test
@@ -8003,6 +8003,191 @@ test io-53.17 {[7c187a3773] MBWrite: proper inQueueTail handling} -setup {
close $c
removeFile out
} -result {line 100 line}
+test io-53.18 {[32ae34e63a] recursive CopyData} -setup {
+ proc driver {cmd args} {
+ variable buffer
+ variable index
+ set chan [lindex $args 0]
+ switch -- $cmd {
+ initialize {
+ set index($chan) 0
+ set buffer($chan) [encoding convertto utf-8 \
+ [string repeat a 100]]
+ return {initialize finalize watch read}
+ }
+ finalize {
+ unset index($chan) buffer($chan)
+ return
+ }
+ watch {
+ if {"read" in [lindex $args 1]} {
+ chan postevent $chan read
+ }
+ return
+ }
+ read {
+ set n [lindex $args 1]
+ set new [expr {$index($chan) + $n}]
+ set result [string range $buffer($chan) $index($chan) $new-1]
+ set index($chan) $new
+ return $result
+ }
+ }
+ }
+ proc more {c outChan bytes args} {
+ if {[eof $c]} {
+ set ::done eof
+ catch {close $c}
+ return
+ }
+ if {[llength $args]} {
+ set ::done error
+ } else {
+ chan copy $c $outChan -command [list [namespace which more] $c $outChan]
+ }
+ }
+ set c [chan create read [namespace which driver]]
+ chan configure $c -encoding utf-8
+ set out [makeFile {} out]
+ set outChan [open $out w]
+ # Different encoding to force use of DoReadChars()
+ chan configure $outChan -encoding iso8859-1
+} -body {
+ after 100 {set ::done timeout}
+ chan copy $c $outChan -size 99 -command [list [namespace which more] $c $outChan]
+ vwait ::done
+ set ::done
+} -cleanup {
+ close $outChan
+ removeFile out
+ rename driver {}
+ rename more {}
+ unset ::done
+} -result eof
+
+test io-53.19 {[32ae34e63a] stop ReflectWatch filtering} -setup {
+ proc driver {cmd args} {
+ variable buffer
+ variable index
+ set chan [lindex $args 0]
+ switch -- $cmd {
+ initialize {
+ set index($chan) 0
+ set buffer($chan) [encoding convertto utf-8 \
+ [string repeat a 100]]
+ return {initialize finalize watch read}
+ }
+ finalize {
+ unset index($chan) buffer($chan)
+ return
+ }
+ watch {
+ if {"read" in [lindex $args 1]} {
+ chan postevent $chan read
+ }
+ return
+ }
+ read {
+ set n [lindex $args 1]
+ set new [expr {$index($chan) + $n}]
+ set result [string range $buffer($chan) $index($chan) $new-1]
+ set index($chan) $new
+ return $result
+ }
+ }
+ }
+ proc more {c outChan bytes args} {
+ if {[eof $c]} {
+ set ::done eof
+ catch {close $c}
+ return
+ }
+ if {[llength $args]} {
+ set ::done error
+ } else {
+ chan copy $c $outChan -size 30 -command [list [namespace which more] $c $outChan]
+ }
+ }
+ set c [chan create read [namespace which driver]]
+ chan configure $c -encoding utf-8 -buffersize 20
+ set out [makeFile {} out]
+ set outChan [open $out w]
+ # Different encoding to force use of DoReadChars()
+ chan configure $outChan -encoding iso8859-1
+} -body {
+ after 100 {set ::done timeout}
+ chan copy $c $outChan -size 30 -command [list [namespace which more] $c $outChan]
+ vwait ::done
+ set ::done
+} -cleanup {
+ catch {close $outChan}
+ removeFile out
+ rename driver {}
+ rename more {}
+ unset ::done
+} -result eof
+
+test io-53.20 {[e0a7b3e5f8] DoRead calls to UpdateInterest} -constraints knownBug -setup {
+ proc driver {cmd args} {
+ variable buffer
+ variable index
+ set chan [lindex $args 0]
+ switch -- $cmd {
+ initialize {
+ set index($chan) 0
+ set buffer($chan) [encoding convertto utf-8 \
+ [string repeat a 100]]
+ return {initialize finalize watch read}
+ }
+ finalize {
+ unset index($chan) buffer($chan)
+ return
+ }
+ watch {
+ if {"read" in [lindex $args 1]} {
+ chan postevent $chan read
+ }
+ return
+ }
+ read {
+ set n [lindex $args 1]
+ set new [expr {$index($chan) + $n}]
+ set result [string range $buffer($chan) $index($chan) $new-1]
+ set index($chan) $new
+ return $result
+ }
+ }
+ }
+ proc more {c outChan bytes args} {
+ if {[eof $c]} {
+ set ::done eof
+ catch {close $c}
+ return
+ }
+ if {[llength $args]} {
+ set ::done error
+ } else {
+ chan copy $c $outChan -size 10 -command [list [namespace which more] $c $outChan]
+ }
+ }
+ set c [chan create read [namespace which driver]]
+ chan configure $c -encoding utf-8 -buffersize 20
+ set out [makeFile {} out]
+ set outChan [open $out w]
+ # Same encoding to force use of DoRead()
+ chan configure $outChan -encoding utf-8
+} -body {
+ after 100 {set ::done timeout}
+ chan copy $c $outChan -size 10 -command [list [namespace which more] $c $outChan]
+ vwait ::done
+ set ::done
+} -cleanup {
+ catch {close $outChan}
+ removeFile out
+ rename driver {}
+ rename more {}
+ unset ::done
+} -result eof
test io-54.1 {Recursive channel events} {socket fileevent} {
# This test checks to see if file events are delivered during recursive
diff --git a/tests/ioCmd.test b/tests/ioCmd.test
index cd89a02..a0caab2 100644
--- a/tests/ioCmd.test
+++ b/tests/ioCmd.test
@@ -1019,7 +1019,7 @@ test iocmd-23.1 {chan read, regular data return} -match glob -body {
close $c
rename foo {}
set res
-} -result {{read rc* 4096} {read rc* 4096} snarfsnarf}
+} -result {{read rc* 4096} {read rc* 4096} {watch rc* {}} snarfsnarf}
test iocmd-23.2 {chan read, bad data return, to much} -match glob -body {
set res {}
proc foo {args} {
@@ -1031,7 +1031,7 @@ test iocmd-23.2 {chan read, bad data return, to much} -match glob -body {
close $c
rename foo {}
set res
-} -result {{read rc* 4096} 1 {read delivered more than requested}}
+} -result {{read rc* 4096} {watch rc* {}} 1 {read delivered more than requested}}
test iocmd-23.3 {chan read, for non-readable channel} -match glob -body {
set res {}
proc foo {args} {
@@ -1054,7 +1054,7 @@ test iocmd-23.4 {chan read, error return} -match glob -body {
close $c
rename foo {}
set res
-} -result {{read rc* 4096} 1 BOOM!}
+} -result {{read rc* 4096} {watch rc* {}} 1 BOOM!}
test iocmd-23.5 {chan read, break return is error} -match glob -body {
set res {}
proc foo {args} {
@@ -1066,7 +1066,7 @@ test iocmd-23.5 {chan read, break return is error} -match glob -body {
close $c
rename foo {}
set res
-} -result {{read rc* 4096} 1 *bad code*}
+} -result {{read rc* 4096} {watch rc* {}} 1 *bad code*}
test iocmd-23.6 {chan read, continue return is error} -match glob -body {
set res {}
proc foo {args} {
@@ -1078,7 +1078,7 @@ test iocmd-23.6 {chan read, continue return is error} -match glob -body {
close $c
rename foo {}
set res
-} -result {{read rc* 4096} 1 *bad code*}
+} -result {{read rc* 4096} {watch rc* {}} 1 *bad code*}
test iocmd-23.7 {chan read, custom return is error} -match glob -body {
set res {}
proc foo {args} {
@@ -1090,7 +1090,7 @@ test iocmd-23.7 {chan read, custom return is error} -match glob -body {
close $c
rename foo {}
set res
-} -result {{read rc* 4096} 1 *bad code*}
+} -result {{read rc* 4096} {watch rc* {}} 1 *bad code*}
test iocmd-23.8 {chan read, level is squashed} -match glob -body {
set res {}
proc foo {args} {
@@ -1102,7 +1102,7 @@ test iocmd-23.8 {chan read, level is squashed} -match glob -body {
close $c
rename foo {}
set res
-} -result {{read rc* 4096} 1 *bad code* {-code 1 -level 0 -errorcode NONE -errorline 1 -errorinfo *bad code*subcommand "read"*}}
+} -result {{read rc* 4096} {watch rc* {}} 1 *bad code* {-code 1 -level 0 -errorcode NONE -errorline 1 -errorinfo *bad code*subcommand "read"*}}
test iocmd-23.9 {chan read, no data means eof} -match glob -setup {
set res {}
proc foo {args} {
@@ -1118,7 +1118,7 @@ test iocmd-23.9 {chan read, no data means eof} -match glob -setup {
close $c
rename foo {}
unset res
-} -result {{read rc* 4096} {} 1}
+} -result {{read rc* 4096} {watch rc* {}} {} 1}
test iocmd-23.10 {chan read, EAGAIN means no data, yet no eof either} -match glob -setup {
set res {}
proc foo {args} {
@@ -1134,7 +1134,7 @@ test iocmd-23.10 {chan read, EAGAIN means no data, yet no eof either} -match glo
close $c
rename foo {}
unset res
-} -result {{read rc* 4096} {} 0}
+} -result {{read rc* 4096} {watch rc* {}} {} 0}
test iocmd-23.11 {chan read, close pulls the rug out} -match glob -body {
set res {}
proc foo {args} {
@@ -1448,14 +1448,14 @@ test iocmd-25.10 {chan configure, cgetall, level is ignored} -match glob -body {
test iocmd-26.1 {chan configure, set standard option} -match glob -body {
set res {}
proc foo {args} {
- oninit configure; onfinal; track; note MUST_NOT_HAPPEN; return
+ oninit configure; onfinal; track; return
}
set c [chan create {r w} foo]
note [fconfigure $c -translation lf]
close $c
rename foo {}
set res
-} -result {{}}
+} -result {{watch rc* {}} {}}
test iocmd-26.2 {chan configure, set option, error return} -match glob -body {
set res {}
proc foo {args} {
@@ -1993,7 +1993,7 @@ test iocmd-31.6 {chan postevent, posted events do happen} -match glob -body {
close $c
rename foo {}
set res
-} -result {{watch rc* read} {} TOCK {} {watch rc* {}}}
+} -result {{watch rc* read} {} TOCK {watch rc* read} {} {watch rc* {}}}
test iocmd-31.7 {chan postevent, posted events do happen} -match glob -body {
set res {}
proc foo {args} {oninit; onfinal; track; return}
@@ -2006,7 +2006,7 @@ test iocmd-31.7 {chan postevent, posted events do happen} -match glob -body {
close $c
rename foo {}
set res
-} -result {{watch rc* write} {} TOCK {} {watch rc* {}}}
+} -result {{watch rc* write} {} TOCK {watch rc* write} {} {watch rc* {}}}
test iocmd-31.8 {chan postevent after close throws error} -match glob -setup {
proc foo {args} {oninit; onfinal; track; return}
proc dummy args { return }
generated by cgit v0.12 at 2024-06-29 03:16:29 (GMT)