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authordgp <dgp@users.sourceforge.net>2014-05-12 17:19:16 (GMT)
committerdgp <dgp@users.sourceforge.net>2014-05-12 17:19:16 (GMT)
commit19b4d8d7fb173813c59f7281e52922921ef9f3cb (patch)
treef0e0f355d99b6c356efc00ae8677167fa691dbdd /generic
parentf779f4219c9a9bdc0c7cd766fbb0e9564936bdd9 (diff)
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Have the [chan push] machinery ReadRaw() directly into the argument to be
passed to the read method of the channel transformation command. Save a copy.
Diffstat (limited to 'generic')
-rw-r--r--generic/tclIORTrans.c34
1 files changed, 20 insertions, 14 deletions
diff --git a/generic/tclIORTrans.c b/generic/tclIORTrans.c
index 1dff4b3..b9dd1d6 100644
--- a/generic/tclIORTrans.c
+++ b/generic/tclIORTrans.c
@@ -457,8 +457,7 @@ static void TimerKill(ReflectedTransform *rtPtr);
static void TimerSetup(ReflectedTransform *rtPtr);
static void TimerRun(ClientData clientData);
static int TransformRead(ReflectedTransform *rtPtr,
- int *errorCodePtr, unsigned char *buf,
- int toRead);
+ int *errorCodePtr, Tcl_Obj *bufObj);
static int TransformWrite(ReflectedTransform *rtPtr,
int *errorCodePtr, unsigned char *buf,
int toWrite);
@@ -1063,6 +1062,7 @@ ReflectInput(
{
ReflectedTransform *rtPtr = clientData;
int gotBytes, copied, readBytes;
+ Tcl_Obj *bufObj;
/*
* The following check can be done before thread redirection, because we
@@ -1078,6 +1078,9 @@ ReflectInput(
Tcl_Preserve(rtPtr);
+ /* TODO: Consider a more appropriate buffer size. */
+ bufObj = Tcl_NewByteArrayObj(NULL, toRead);
+ Tcl_IncrRefCount(bufObj);
gotBytes = 0;
while (toRead > 0) {
/*
@@ -1129,7 +1132,9 @@ ReflectInput(
goto stop;
}
- readBytes = Tcl_ReadRaw(rtPtr->parent, buf, toRead);
+
+ readBytes = Tcl_ReadRaw(rtPtr->parent,
+ (char *) Tcl_SetByteArrayLength(bufObj, toRead), toRead);
if (readBytes < 0) {
/*
* Report errors to caller. The state of the seek system is
@@ -1213,12 +1218,20 @@ ReflectInput(
* iteration will put it into the result.
*/
- if (!TransformRead(rtPtr, errorCodePtr, UCHARP(buf), readBytes)) {
+ Tcl_SetByteArrayLength(bufObj, readBytes);
+ if (!TransformRead(rtPtr, errorCodePtr, bufObj)) {
goto error;
}
+ if (Tcl_IsShared(bufObj)) {
+ Tcl_DecrRefCount(bufObj);
+ bufObj = Tcl_NewObj();
+ Tcl_IncrRefCount(bufObj);
+ }
+ Tcl_SetByteArrayLength(bufObj, 0);
} /* while toRead > 0 */
stop:
+ Tcl_DecrRefCount(bufObj);
Tcl_Release(rtPtr);
return gotBytes;
@@ -3067,10 +3080,8 @@ static int
TransformRead(
ReflectedTransform *rtPtr,
int *errorCodePtr,
- unsigned char *buf,
- int toRead)
+ Tcl_Obj *bufObj)
{
- Tcl_Obj *bufObj;
Tcl_Obj *resObj;
int bytec; /* Number of returned bytes */
unsigned char *bytev; /* Array of returned bytes */
@@ -3083,8 +3094,8 @@ TransformRead(
if (rtPtr->thread != Tcl_GetCurrentThread()) {
ForwardParam p;
- p.transform.buf = (char *) buf;
- p.transform.size = toRead;
+ p.transform.buf = (char *) Tcl_GetByteArrayFromObj(bufObj,
+ &(p.transform.size));
ForwardOpToOwnerThread(rtPtr, ForwardedInput, &p);
@@ -3104,12 +3115,8 @@ TransformRead(
/* ASSERT: rtPtr->method & FLAG(METH_READ) */
/* ASSERT: rtPtr->mode & TCL_READABLE */
- bufObj = Tcl_NewByteArrayObj((unsigned char *) buf, toRead);
- Tcl_IncrRefCount(bufObj);
-
if (InvokeTclMethod(rtPtr, "read", bufObj, NULL, &resObj) != TCL_OK) {
Tcl_SetChannelError(rtPtr->chan, resObj);
- Tcl_DecrRefCount(bufObj);
Tcl_DecrRefCount(resObj); /* Remove reference held from invoke */
*errorCodePtr = EINVAL;
return 0;
@@ -3118,7 +3125,6 @@ TransformRead(
bytev = Tcl_GetByteArrayFromObj(resObj, &bytec);
ResultAdd(&rtPtr->result, bytev, bytec);
- Tcl_DecrRefCount(bufObj);
Tcl_DecrRefCount(resObj); /* Remove reference held from invoke */
return 1;
}