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-rw-r--r--generic/tclInterp.c200
1 files changed, 144 insertions, 56 deletions
diff --git a/generic/tclInterp.c b/generic/tclInterp.c
index 5b6d14f..0da5d47 100644
--- a/generic/tclInterp.c
+++ b/generic/tclInterp.c
@@ -179,6 +179,37 @@ typedef struct ScriptLimitCallbackKey {
} ScriptLimitCallbackKey;
/*
+ * TIP#143 limit handler internal representation.
+ */
+
+struct LimitHandler {
+ int flags; /* The state of this particular handler. */
+ Tcl_LimitHandlerProc *handlerProc;
+ /* The handler callback. */
+ ClientData clientData; /* Opaque argument to the handler callback. */
+ Tcl_LimitHandlerDeleteProc *deleteProc;
+ /* How to delete the clientData. */
+ LimitHandler *prevPtr; /* Previous item in linked list of
+ * handlers. */
+ LimitHandler *nextPtr; /* Next item in linked list of handlers. */
+};
+
+/*
+ * Values for the LimitHandler flags field.
+ * LIMIT_HANDLER_ACTIVE - Whether the handler is currently being
+ * processed; handlers are never to be entered reentrantly.
+ * LIMIT_HANDLER_DELETED - Whether the handler has been deleted. This
+ * should not normally be observed because when a handler is
+ * deleted it is also spliced out of the list of handlers, but
+ * even so we will be careful.
+ */
+
+#define LIMIT_HANDLER_ACTIVE 0x01
+#define LIMIT_HANDLER_DELETED 0x02
+
+
+
+/*
* Prototypes for local static functions:
*/
@@ -248,6 +279,12 @@ static void DeleteScriptLimitCallback(ClientData clientData);
static void RunLimitHandlers(LimitHandler *handlerPtr,
Tcl_Interp *interp);
static void TimeLimitCallback(ClientData clientData);
+
+/* NRE enabling */
+static Tcl_NRPostProc NRPostInvokeHidden;
+static Tcl_ObjCmdProc NRInterpCmd;
+static Tcl_ObjCmdProc NRSlaveCmd;
+
/*
*----------------------------------------------------------------------
@@ -450,7 +487,8 @@ TclInterpInit(
slavePtr->interpCmd = NULL;
Tcl_InitHashTable(&slavePtr->aliasTable, TCL_STRING_KEYS);
- Tcl_CreateObjCommand(interp, "interp", Tcl_InterpObjCmd, NULL, NULL);
+ Tcl_NRCreateCommand(interp, "interp", Tcl_InterpObjCmd, NRInterpCmd,
+ NULL, NULL);
Tcl_CallWhenDeleted(interp, InterpInfoDeleteProc, NULL);
return TCL_OK;
@@ -559,6 +597,16 @@ Tcl_InterpObjCmd(
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
+ return Tcl_NRCallObjProc(interp, NRInterpCmd, clientData, objc, objv);
+}
+
+static int
+NRInterpCmd(
+ ClientData clientData, /* Unused. */
+ Tcl_Interp *interp, /* Current interpreter. */
+ int objc, /* Number of arguments. */
+ Tcl_Obj *const objv[]) /* Argument objects. */
+{
Tcl_Interp *slaveInterp;
int index;
static const char *const options[] = {
@@ -1043,18 +1091,18 @@ Tcl_InterpObjCmd(
iiPtr = (InterpInfo *) ((Interp *) slaveInterp)->interpInfo;
hPtr = Tcl_FindHashEntry(&iiPtr->slave.aliasTable, aliasName);
if (hPtr == NULL) {
- Tcl_AppendResult(interp, "alias \"", aliasName, "\" in path \"",
- Tcl_GetString(objv[2]), "\" not found", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "alias \"%s\" in path \"%s\" not found",
+ aliasName, Tcl_GetString(objv[2])));
Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "ALIAS", aliasName,
NULL);
return TCL_ERROR;
}
aliasPtr = Tcl_GetHashValue(hPtr);
if (Tcl_GetInterpPath(interp, aliasPtr->targetInterp) != TCL_OK) {
- Tcl_ResetResult(interp);
- Tcl_AppendResult(interp, "target interpreter for alias \"",
- aliasName, "\" in path \"", Tcl_GetString(objv[2]),
- "\" is not my descendant", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "target interpreter for alias \"%s\" in path \"%s\" is "
+ "not my descendant", aliasName, Tcl_GetString(objv[2])));
Tcl_SetErrorCode(interp, "TCL", "OPERATION", "INTERP",
"TARGETSHROUDED", NULL);
return TCL_ERROR;
@@ -1234,7 +1282,8 @@ Tcl_GetAlias(
hPtr = Tcl_FindHashEntry(&iiPtr->slave.aliasTable, aliasName);
if (hPtr == NULL) {
- Tcl_AppendResult(interp, "alias \"", aliasName, "\" not found", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "alias \"%s\" not found", aliasName));
Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "ALIAS", aliasName, NULL);
return TCL_ERROR;
}
@@ -1295,7 +1344,8 @@ Tcl_GetAliasObj(
hPtr = Tcl_FindHashEntry(&iiPtr->slave.aliasTable, aliasName);
if (hPtr == NULL) {
- Tcl_AppendResult(interp, "alias \"", aliasName, "\" not found", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "alias \"%s\" not found", aliasName));
Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "ALIAS", aliasName, NULL);
return TCL_ERROR;
}
@@ -1383,9 +1433,9 @@ TclPreventAliasLoop(
* [Bug #641195]
*/
- Tcl_AppendResult(interp, "cannot define or rename alias \"",
- Tcl_GetCommandName(cmdInterp, cmd),
- "\": interpreter deleted", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "cannot define or rename alias \"%s\": interpreter deleted",
+ Tcl_GetCommandName(cmdInterp, cmd)));
return TCL_ERROR;
}
cmdNamePtr = nextAliasPtr->objPtr;
@@ -1398,9 +1448,9 @@ TclPreventAliasLoop(
}
aliasCmdPtr = (Command *) aliasCmd;
if (aliasCmdPtr == cmdPtr) {
- Tcl_AppendResult(interp, "cannot define or rename alias \"",
- Tcl_GetCommandName(cmdInterp, cmd),
- "\": would create a loop", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "cannot define or rename alias \"%s\": would create a loop",
+ Tcl_GetCommandName(cmdInterp, cmd)));
Tcl_SetErrorCode(interp, "TCL", "OPERATION", "INTERP",
"ALIASLOOP", NULL);
return TCL_ERROR;
@@ -1621,8 +1671,8 @@ AliasDelete(
slavePtr = &((InterpInfo *) ((Interp *) slaveInterp)->interpInfo)->slave;
hPtr = Tcl_FindHashEntry(&slavePtr->aliasTable, TclGetString(namePtr));
if (hPtr == NULL) {
- Tcl_AppendResult(interp, "alias \"", TclGetString(namePtr),
- "\" not found", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "alias \"%s\" not found", TclGetString(namePtr)));
Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "ALIAS",
TclGetString(namePtr), NULL);
return TCL_ERROR;
@@ -1796,9 +1846,9 @@ AliasNRCmd(
*/
if (isRootEnsemble) {
- TclNRDeferCallback(interp, TclClearRootEnsemble, NULL, NULL, NULL, NULL);
+ TclNRAddCallback(interp, TclClearRootEnsemble, NULL, NULL, NULL, NULL);
}
- iPtr->evalFlags |= TCL_EVAL_REDIRECT;
+ TclSkipTailcall(interp);
return Tcl_NREvalObj(interp, listPtr, flags);
}
@@ -2154,17 +2204,19 @@ Tcl_GetInterpPath(
InterpInfo *iiPtr;
if (targetInterp == askingInterp) {
+ Tcl_SetObjResult(askingInterp, Tcl_NewObj());
return TCL_OK;
}
if (targetInterp == NULL) {
return TCL_ERROR;
}
iiPtr = (InterpInfo *) ((Interp *) targetInterp)->interpInfo;
- if (Tcl_GetInterpPath(askingInterp, iiPtr->slave.masterInterp) != TCL_OK) {
+ if (Tcl_GetInterpPath(askingInterp, iiPtr->slave.masterInterp) != TCL_OK){
return TCL_ERROR;
}
- Tcl_AppendElement(askingInterp, Tcl_GetHashKey(&iiPtr->master.slaveTable,
- iiPtr->slave.slaveEntryPtr));
+ Tcl_ListObjAppendElement(NULL, Tcl_GetObjResult(askingInterp),
+ Tcl_NewStringObj(Tcl_GetHashKey(&iiPtr->master.slaveTable,
+ iiPtr->slave.slaveEntryPtr), -1));
return TCL_OK;
}
@@ -2218,8 +2270,8 @@ GetInterp(
}
}
if (searchInterp == NULL) {
- Tcl_AppendResult(interp, "could not find interpreter \"",
- TclGetString(pathPtr), "\"", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "could not find interpreter \"%s\"", TclGetString(pathPtr)));
Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "INTERP",
TclGetString(pathPtr), NULL);
}
@@ -2256,8 +2308,8 @@ SlaveBgerror(
if (TCL_ERROR == TclListObjLength(NULL, objv[0], &length)
|| (length < 1)) {
- Tcl_AppendResult(interp, "cmdPrefix must be list of length >= 1",
- NULL);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(
+ "cmdPrefix must be list of length >= 1", -1));
Tcl_SetErrorCode(interp, "TCL", "OPERATION", "INTERP",
"BGERRORFORMAT", NULL);
return TCL_ERROR;
@@ -2326,8 +2378,9 @@ SlaveCreate(
hPtr = Tcl_CreateHashEntry(&masterInfoPtr->master.slaveTable, path,
&isNew);
if (isNew == 0) {
- Tcl_AppendResult(interp, "interpreter named \"", path,
- "\" already exists, cannot create", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "interpreter named \"%s\" already exists, cannot create",
+ path));
return NULL;
}
@@ -2336,8 +2389,8 @@ SlaveCreate(
slavePtr->masterInterp = masterInterp;
slavePtr->slaveEntryPtr = hPtr;
slavePtr->slaveInterp = slaveInterp;
- slavePtr->interpCmd = Tcl_CreateObjCommand(masterInterp, path,
- SlaveObjCmd, slaveInterp, SlaveObjCmdDeleteProc);
+ slavePtr->interpCmd = Tcl_NRCreateCommand(masterInterp, path,
+ SlaveObjCmd, NRSlaveCmd, slaveInterp, SlaveObjCmdDeleteProc);
Tcl_InitHashTable(&slavePtr->aliasTable, TCL_STRING_KEYS);
Tcl_SetHashValue(hPtr, slavePtr);
Tcl_SetVar(slaveInterp, "tcl_interactive", "0", TCL_GLOBAL_ONLY);
@@ -2426,6 +2479,16 @@ SlaveObjCmd(
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
+ return Tcl_NRCallObjProc(interp, NRSlaveCmd, clientData, objc, objv);
+}
+
+static int
+NRSlaveCmd(
+ ClientData clientData, /* Slave interpreter. */
+ Tcl_Interp *interp, /* Current interpreter. */
+ int objc, /* Number of arguments. */
+ Tcl_Obj *const objv[]) /* Argument objects. */
+{
Tcl_Interp *slaveInterp = clientData;
int index;
static const char *const options[] = {
@@ -2860,8 +2923,8 @@ SlaveRecursionLimit(
if (objc) {
if (Tcl_IsSafe(interp)) {
- Tcl_AppendResult(interp, "permission denied: "
- "safe interpreters cannot change recursion limit", NULL);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj("permission denied: "
+ "safe interpreters cannot change recursion limit", -1));
Tcl_SetErrorCode(interp, "TCL", "OPERATION", "INTERP", "UNSAFE",
NULL);
return TCL_ERROR;
@@ -3016,7 +3079,11 @@ SlaveInvokeHidden(
Tcl_AllowExceptions(slaveInterp);
if (namespaceName == NULL) {
- result = TclObjInvoke(slaveInterp, objc, objv, TCL_INVOKE_HIDDEN);
+ NRE_callback *rootPtr = TOP_CB(slaveInterp);
+
+ Tcl_NRAddCallback(interp, NRPostInvokeHidden, slaveInterp,
+ rootPtr, NULL, NULL);
+ return TclNRInvoke(NULL, slaveInterp, objc, objv);
} else {
Namespace *nsPtr, *dummy1, *dummy2;
const char *tail;
@@ -3035,6 +3102,23 @@ SlaveInvokeHidden(
Tcl_Release(slaveInterp);
return result;
}
+
+static int
+NRPostInvokeHidden(
+ ClientData data[],
+ Tcl_Interp *interp,
+ int result)
+{
+ Tcl_Interp *slaveInterp = (Tcl_Interp *)data[0];
+ NRE_callback *rootPtr = (NRE_callback *)data[1];
+
+ if (interp != slaveInterp) {
+ result = TclNRRunCallbacks(slaveInterp, result, rootPtr);
+ Tcl_TransferResult(slaveInterp, result, interp);
+ }
+ Tcl_Release(slaveInterp);
+ return result;
+}
/*
*----------------------------------------------------------------------
@@ -3320,8 +3404,8 @@ Tcl_LimitCheck(
if (iPtr->limit.cmdCount >= iPtr->cmdCount) {
iPtr->limit.exceeded &= ~TCL_LIMIT_COMMANDS;
} else if (iPtr->limit.exceeded & TCL_LIMIT_COMMANDS) {
- Tcl_ResetResult(interp);
- Tcl_AppendResult(interp, "command count limit exceeded", NULL);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(
+ "command count limit exceeded", -1));
Tcl_SetErrorCode(interp, "TCL", "LIMIT", "COMMANDS", NULL);
Tcl_Release(interp);
return TCL_ERROR;
@@ -3346,8 +3430,8 @@ Tcl_LimitCheck(
iPtr->limit.time.usec >= now.usec)) {
iPtr->limit.exceeded &= ~TCL_LIMIT_TIME;
} else if (iPtr->limit.exceeded & TCL_LIMIT_TIME) {
- Tcl_ResetResult(interp);
- Tcl_AppendResult(interp, "time limit exceeded", NULL);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(
+ "time limit exceeded", -1));
Tcl_SetErrorCode(interp, "TCL", "LIMIT", "TIME", NULL);
Tcl_Release(interp);
return TCL_ERROR;
@@ -4353,8 +4437,9 @@ SlaveCommandLimitCmd(
*/
if (interp == slaveInterp) {
- Tcl_AppendResult(interp,
- "limits on current interpreter inaccessible", NULL);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(
+ "limits on current interpreter inaccessible", -1));
+ Tcl_SetErrorCode(interp, "TCL", "OPERATION", "INTERP", "SELF", NULL);
return TCL_ERROR;
}
@@ -4450,8 +4535,8 @@ SlaveCommandLimitCmd(
return TCL_ERROR;
}
if (gran < 1) {
- Tcl_AppendResult(interp, "granularity must be at "
- "least 1", NULL);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(
+ "granularity must be at least 1", -1));
Tcl_SetErrorCode(interp, "TCL", "OPERATION", "INTERP",
"BADVALUE", NULL);
return TCL_ERROR;
@@ -4467,8 +4552,8 @@ SlaveCommandLimitCmd(
return TCL_ERROR;
}
if (limit < 0) {
- Tcl_AppendResult(interp, "command limit value must be at "
- "least 0", NULL);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(
+ "command limit value must be at least 0", -1));
Tcl_SetErrorCode(interp, "TCL", "OPERATION", "INTERP",
"BADVALUE", NULL);
return TCL_ERROR;
@@ -4540,8 +4625,9 @@ SlaveTimeLimitCmd(
*/
if (interp == slaveInterp) {
- Tcl_AppendResult(interp,
- "limits on current interpreter inaccessible", NULL);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(
+ "limits on current interpreter inaccessible", -1));
+ Tcl_SetErrorCode(interp, "TCL", "OPERATION", "INTERP", "SELF", NULL);
return TCL_ERROR;
}
@@ -4658,8 +4744,8 @@ SlaveTimeLimitCmd(
return TCL_ERROR;
}
if (gran < 1) {
- Tcl_AppendResult(interp, "granularity must be at "
- "least 1", NULL);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(
+ "granularity must be at least 1", -1));
Tcl_SetErrorCode(interp, "TCL", "OPERATION", "INTERP",
"BADVALUE", NULL);
return TCL_ERROR;
@@ -4675,13 +4761,13 @@ SlaveTimeLimitCmd(
return TCL_ERROR;
}
if (tmp < 0) {
- Tcl_AppendResult(interp, "milliseconds must be at least 0",
- NULL);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(
+ "milliseconds must be at least 0", -1));
Tcl_SetErrorCode(interp, "TCL", "OPERATION", "INTERP",
"BADVALUE", NULL);
return TCL_ERROR;
}
- limitMoment.usec = ((long)tmp)*1000;
+ limitMoment.usec = ((long) tmp)*1000;
break;
case OPT_SEC:
secObj = objv[i+1];
@@ -4693,8 +4779,8 @@ SlaveTimeLimitCmd(
return TCL_ERROR;
}
if (tmp < 0) {
- Tcl_AppendResult(interp, "seconds must be at least 0",
- NULL);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(
+ "seconds must be at least 0", -1));
Tcl_SetErrorCode(interp, "TCL", "OPERATION", "INTERP",
"BADVALUE", NULL);
return TCL_ERROR;
@@ -4711,15 +4797,17 @@ SlaveTimeLimitCmd(
*/
if (secObj != NULL && secLen == 0 && milliLen > 0) {
- Tcl_AppendResult(interp, "may only set -milliseconds "
- "if -seconds is not also being reset", NULL);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(
+ "may only set -milliseconds if -seconds is not "
+ "also being reset", -1));
Tcl_SetErrorCode(interp, "TCL", "OPERATION", "INTERP",
"BADUSAGE", NULL);
return TCL_ERROR;
}
if (milliLen == 0 && (secObj == NULL || secLen > 0)) {
- Tcl_AppendResult(interp, "may only reset -milliseconds "
- "if -seconds is also being reset", NULL);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(
+ "may only reset -milliseconds if -seconds is "
+ "also being reset", -1));
Tcl_SetErrorCode(interp, "TCL", "OPERATION", "INTERP",
"BADUSAGE", NULL);
return TCL_ERROR;
generated by cgit v0.12 at 2025-10-21 20:35:47 (GMT)