From 189c6453b43325f74f5b004694c79c5786d918c1 Mon Sep 17 00:00:00 2001 From: "jan.nijtmans" Date: Fri, 22 Dec 2017 15:45:05 +0000 Subject: Change a few (internal) refCount/mask variables to unsigned type. --- generic/tclInt.h | 9 ++++----- generic/tclLiteral.c | 23 ++++++++++++----------- 2 files changed, 16 insertions(+), 16 deletions(-) diff --git a/generic/tclInt.h b/generic/tclInt.h index de22924..2ba0493 100644 --- a/generic/tclInt.h +++ b/generic/tclInt.h @@ -545,7 +545,7 @@ typedef struct CommandTrace { struct CommandTrace *nextPtr; /* Next in list of traces associated with a * particular command. */ - unsigned int refCount; /* Used to ensure this structure is not + size_t refCount; /* Used to ensure this structure is not * deleted too early. Keeps track of how many * pieces of code have a pointer to this * structure. */ @@ -1492,11 +1492,11 @@ typedef struct LiteralEntry { * NULL if end of chain. */ Tcl_Obj *objPtr; /* Points to Tcl object that holds the * literal's bytes and length. */ - int refCount; /* If in an interpreter's global literal + size_t refCount; /* If in an interpreter's global literal * table, the number of ByteCode structures * that share the literal object; the literal * entry can be freed when refCount drops to - * 0. If in a local literal table, -1. */ + * 0. If in a local literal table, (size_t)-1. */ Namespace *nsPtr; /* Namespace in which this literal is used. We * try to avoid sharing literal non-FQ command * names among different namespaces to reduce @@ -1516,7 +1516,7 @@ typedef struct LiteralTable { * table. */ int rebuildSize; /* Enlarge table when numEntries gets to be * this large. */ - int mask; /* Mask value used in hashing function. */ + unsigned int mask; /* Mask value used in hashing function. */ } LiteralTable; /* @@ -2962,7 +2962,6 @@ MODULE_SCOPE Tcl_Obj *const * TclFetchEnsembleRoot(Tcl_Interp *interp, Tcl_Obj *const *objv, int objc, int *objcPtr); MODULE_SCOPE Tcl_Namespace * TclEnsureNamespace(Tcl_Interp *interp, Tcl_Namespace *namespacePtr); - MODULE_SCOPE void TclFinalizeAllocSubsystem(void); MODULE_SCOPE void TclFinalizeAsync(void); MODULE_SCOPE void TclFinalizeDoubleConversion(void); diff --git a/generic/tclLiteral.c b/generic/tclLiteral.c index 7acc9ad..003884d 100644 --- a/generic/tclLiteral.c +++ b/generic/tclLiteral.c @@ -186,7 +186,7 @@ TclCreateLiteral( { LiteralTable *globalTablePtr = &iPtr->literalTable; LiteralEntry *globalPtr; - int globalHash; + unsigned int globalHash; Tcl_Obj *objPtr; /* @@ -393,7 +393,8 @@ TclRegisterLiteral( LiteralEntry *globalPtr, *localPtr; Tcl_Obj *objPtr; unsigned hash; - int localHash, objIndex, new; + unsigned int localHash; + int objIndex, new; Namespace *nsPtr; if (length < 0) { @@ -537,7 +538,8 @@ TclHideLiteral( { LiteralEntry **nextPtrPtr, *entryPtr, *lPtr; LiteralTable *localTablePtr = &envPtr->localLitTable; - int localHash, length; + unsigned int localHash; + int length; const char *bytes; Tcl_Obj *newObjPtr; @@ -556,7 +558,7 @@ TclHideLiteral( lPtr->objPtr = newObjPtr; bytes = TclGetStringFromObj(newObjPtr, &length); - localHash = (HashString(bytes, length) & localTablePtr->mask); + localHash = HashString(bytes, length) & localTablePtr->mask; nextPtrPtr = &localTablePtr->buckets[localHash]; for (entryPtr=*nextPtrPtr ; entryPtr!=NULL ; entryPtr=*nextPtrPtr) { @@ -612,7 +614,7 @@ TclAddLiteralObj( lPtr = &envPtr->literalArrayPtr[objIndex]; lPtr->objPtr = objPtr; Tcl_IncrRefCount(objPtr); - lPtr->refCount = -1; /* i.e., unused */ + lPtr->refCount = (size_t)-1; /* i.e., unused */ lPtr->nextPtr = NULL; if (litPtrPtr) { @@ -809,7 +811,8 @@ TclReleaseLiteral( LiteralTable *globalTablePtr; register LiteralEntry *entryPtr, *prevPtr; const char *bytes; - int length, index; + int length; + unsigned int index; if (iPtr == NULL) { goto done; @@ -828,15 +831,13 @@ TclReleaseLiteral( for (prevPtr=NULL, entryPtr=globalTablePtr->buckets[index]; entryPtr!=NULL ; prevPtr=entryPtr, entryPtr=entryPtr->nextPtr) { if (entryPtr->objPtr == objPtr) { - entryPtr->refCount--; - /* * If the literal is no longer being used by any ByteCode, delete * the entry then remove the reference corresponding to the global * literal table entry (decrement the ref count of the object). */ - if (entryPtr->refCount == 0) { + if (entryPtr->refCount-- <= 1) { if (prevPtr == NULL) { globalTablePtr->buckets[index] = entryPtr->nextPtr; } else { @@ -954,8 +955,8 @@ RebuildLiteralTable( register LiteralEntry *entryPtr; LiteralEntry **bucketPtr; const char *bytes; - unsigned int oldSize; - int count, index, length; + unsigned int oldSize, index; + int count, length; oldSize = tablePtr->numBuckets; oldBuckets = tablePtr->buckets; -- cgit v0.12