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Diffstat (limited to 'generic/tclIOCmd.c')
-rw-r--r--generic/tclIOCmd.c25
1 files changed, 22 insertions, 3 deletions
diff --git a/generic/tclIOCmd.c b/generic/tclIOCmd.c
index d5ac64d..14910d7 100644
--- a/generic/tclIOCmd.c
+++ b/generic/tclIOCmd.c
@@ -181,6 +181,7 @@ Tcl_PutsObjCmd(
return TCL_ERROR;
}
+ Tcl_Preserve(chan);
result = Tcl_WriteObj(chan, string);
if (result < 0) {
goto error;
@@ -191,6 +192,7 @@ Tcl_PutsObjCmd(
goto error;
}
}
+ Tcl_Release(chan);
return TCL_OK;
/*
@@ -205,6 +207,7 @@ Tcl_PutsObjCmd(
Tcl_SetObjResult(interp, Tcl_ObjPrintf("error writing \"%s\": %s",
TclGetString(chanObjPtr), Tcl_PosixError(interp)));
}
+ Tcl_Release(chan);
return TCL_ERROR;
}
@@ -252,6 +255,7 @@ Tcl_FlushObjCmd(
return TCL_ERROR;
}
+ Tcl_Preserve(chan);
if (Tcl_Flush(chan) != TCL_OK) {
/*
* TIP #219.
@@ -265,8 +269,10 @@ Tcl_FlushObjCmd(
"error flushing \"%s\": %s",
TclGetString(chanObjPtr), Tcl_PosixError(interp)));
}
+ Tcl_Release(chan);
return TCL_ERROR;
}
+ Tcl_Release(chan);
return TCL_OK;
}
@@ -299,6 +305,7 @@ Tcl_GetsObjCmd(
int lineLen; /* Length of line just read. */
int mode; /* Mode in which channel is opened. */
Tcl_Obj *linePtr, *chanObjPtr;
+ int code = TCL_OK;
if ((objc != 2) && (objc != 3)) {
Tcl_WrongNumArgs(interp, 1, objv, "channelId ?varName?");
@@ -315,6 +322,7 @@ Tcl_GetsObjCmd(
return TCL_ERROR;
}
+ Tcl_Preserve(chan);
linePtr = Tcl_NewObj();
lineLen = Tcl_GetsObj(chan, linePtr);
if (lineLen < 0) {
@@ -333,7 +341,8 @@ Tcl_GetsObjCmd(
"error reading \"%s\": %s",
TclGetString(chanObjPtr), Tcl_PosixError(interp)));
}
- return TCL_ERROR;
+ code = TCL_ERROR;
+ goto done;
}
lineLen = -1;
}
@@ -346,7 +355,9 @@ Tcl_GetsObjCmd(
} else {
Tcl_SetObjResult(interp, linePtr);
}
- return TCL_OK;
+ done:
+ Tcl_Release(chan);
+ return code;
}
/*
@@ -547,6 +558,7 @@ Tcl_SeekObjCmd(
mode = modeArray[optionIndex];
}
+ Tcl_Preserve(chan);
result = Tcl_Seek(chan, offset, mode);
if (result == Tcl_LongAsWide(-1)) {
/*
@@ -561,8 +573,10 @@ Tcl_SeekObjCmd(
"error during seek on \"%s\": %s",
TclGetString(objv[1]), Tcl_PosixError(interp)));
}
+ Tcl_Release(chan);
return TCL_ERROR;
}
+ Tcl_Release(chan);
return TCL_OK;
}
@@ -593,6 +607,7 @@ Tcl_TellObjCmd(
{
Tcl_Channel chan; /* The channel to tell on. */
Tcl_WideInt newLoc;
+ int code;
if (objc != 2) {
Tcl_WrongNumArgs(interp, 1, objv, "channelId");
@@ -608,6 +623,7 @@ Tcl_TellObjCmd(
return TCL_ERROR;
}
+ Tcl_Preserve(chan);
newLoc = Tcl_Tell(chan);
/*
@@ -616,7 +632,10 @@ Tcl_TellObjCmd(
* them into the regular interpreter result.
*/
- if (TclChanCaughtErrorBypass(interp, chan)) {
+
+ code = TclChanCaughtErrorBypass(interp, chan);
+ Tcl_Release(chan);
+ if (code) {
return TCL_ERROR;
}