diff options
Diffstat (limited to 'generic/tkConfig.c')
| -rw-r--r-- | generic/tkConfig.c | 139 |
1 files changed, 50 insertions, 89 deletions
diff --git a/generic/tkConfig.c b/generic/tkConfig.c index e06d5d5..9c159e6 100644 --- a/generic/tkConfig.c +++ b/generic/tkConfig.c @@ -27,11 +27,16 @@ #include "tkFont.h" /* - * The following definition is an AssocData key used to keep track of all of - * the option tables that have been created for an interpreter. + * The following definition keeps track of all of + * the option tables that have been created for a thread. */ -#define OPTION_HASH_KEY "TkOptionTable" +typedef struct ThreadSpecificData { + int initialized; /* 0 means table below needs initializing. */ + Tcl_HashTable hashTable; +} ThreadSpecificData; +static Tcl_ThreadDataKey dataKey; + /* * The following two structures are used along with Tk_OptionSpec structures @@ -100,8 +105,6 @@ typedef struct OptionTable { * chain. */ int numOptions; /* The number of items in the options array * below. */ - int refCount2; /* Reference counter for controlling the freeing - * of the memory occupied by this OptionTable */ Option options[1]; /* Information about the individual options in * the table. This must be the last field in * the structure: the actual size of the array @@ -115,8 +118,6 @@ typedef struct OptionTable { static int DoObjConfig(Tcl_Interp *interp, char *recordPtr, Option *optionPtr, Tcl_Obj *valuePtr, Tk_Window tkwin, Tk_SavedOption *savePtr); -static void DestroyOptionHashTable(ClientData clientData, - Tcl_Interp *interp); static void FreeResources(Option *optionPtr, Tcl_Obj *objPtr, char *internalPtr, Tk_Window tkwin); static Tcl_Obj * GetConfigList(char *recordPtr, @@ -128,6 +129,7 @@ static Option * GetOptionFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr, OptionTable *tablePtr); static int ObjectIsEmpty(Tcl_Obj *objPtr); static void FreeOptionInternalRep(Tcl_Obj *objPtr); +static void DupOptionInternalRep(Tcl_Obj *, Tcl_Obj *); /* * The structure below defines an object type that is used to cache the result @@ -139,7 +141,7 @@ static void FreeOptionInternalRep(Tcl_Obj *objPtr); static const Tcl_ObjType optionObjType = { "option", /* name */ FreeOptionInternalRep, /* freeIntRepProc */ - NULL, /* dupIntRepProc */ + DupOptionInternalRep, /* dupIntRepProc */ NULL, /* updateStringProc */ NULL /* setFromAnyProc */ }; @@ -170,30 +172,26 @@ Tk_CreateOptionTable( /* Static information about the configuration * options. */ { - Tcl_HashTable *hashTablePtr; Tcl_HashEntry *hashEntryPtr; int newEntry; OptionTable *tablePtr; const Tk_OptionSpec *specPtr, *specPtr2; Option *optionPtr; int numOptions, i; + ThreadSpecificData *tsdPtr = + Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData)); /* - * We use an AssocData value in the interpreter to keep a hash table of - * all the option tables we've created for this application. This is used - * for two purposes. First, it allows us to share the tables (e.g. in - * several chains) and second, we use the deletion callback for the - * AssocData to delete all the option tables when the interpreter is - * deleted. The code below finds the hash table or creates a new one if it + * We use an TSD in the thread to keep a hash table of + * all the option tables we've created for this application. This is + * used for allowing us to share the tables (e.g. in several chains). + * The code below finds the hash table or creates a new one if it * doesn't already exist. */ - hashTablePtr = Tcl_GetAssocData(interp, OPTION_HASH_KEY, NULL); - if (hashTablePtr == NULL) { - hashTablePtr = ckalloc(sizeof(Tcl_HashTable)); - Tcl_InitHashTable(hashTablePtr, TCL_ONE_WORD_KEYS); - Tcl_SetAssocData(interp, OPTION_HASH_KEY, DestroyOptionHashTable, - hashTablePtr); + if (!tsdPtr->initialized) { + Tcl_InitHashTable(&tsdPtr->hashTable, TCL_ONE_WORD_KEYS); + tsdPtr->initialized = 1; } /* @@ -201,7 +199,7 @@ Tk_CreateOptionTable( * reuse the existing table. */ - hashEntryPtr = Tcl_CreateHashEntry(hashTablePtr, (char *) templatePtr, + hashEntryPtr = Tcl_CreateHashEntry(&tsdPtr->hashTable, (char *) templatePtr, &newEntry); if (!newEntry) { tablePtr = Tcl_GetHashValue(hashEntryPtr); @@ -220,7 +218,6 @@ Tk_CreateOptionTable( } tablePtr = ckalloc(sizeof(OptionTable) + (numOptions * sizeof(Option))); tablePtr->refCount = 1; - tablePtr->refCount2 = 1; tablePtr->hashEntryPtr = hashEntryPtr; tablePtr->nextPtr = NULL; tablePtr->numOptions = numOptions; @@ -356,62 +353,7 @@ Tk_DeleteOptionTable( } } Tcl_DeleteHashEntry(tablePtr->hashEntryPtr); - tablePtr->refCount2--; - if (tablePtr->refCount2 <= 0) { - ckfree(tablePtr); - } -} - -/* - *---------------------------------------------------------------------- - * - * DestroyOptionHashTable -- - * - * This function is the deletion callback associated with the AssocData - * entry created by Tk_CreateOptionTable. It is invoked when an - * interpreter is deleted, and deletes all of the option tables - * associated with that interpreter. - * - * Results: - * None. - * - * Side effects: - * The option hash table is destroyed along with all of the OptionTable - * structures that it refers to. - * - *---------------------------------------------------------------------- - */ - -static void -DestroyOptionHashTable( - ClientData clientData, /* The hash table we are destroying */ - Tcl_Interp *interp) /* The interpreter we are destroying */ -{ - Tcl_HashTable *hashTablePtr = clientData; - Tcl_HashSearch search; - Tcl_HashEntry *hashEntryPtr; - - for (hashEntryPtr = Tcl_FirstHashEntry(hashTablePtr, &search); - hashEntryPtr != NULL; - hashEntryPtr = Tcl_NextHashEntry(&search)) { - OptionTable *tablePtr = Tcl_GetHashValue(hashEntryPtr); - - /* - * The following statements do two tricky things: - * 1. They ensure that the option table is deleted, even if there are - * outstanding references to it. - * 2. They ensure that Tk_DeleteOptionTable doesn't delete other - * tables chained from this one; we'll do it when we come across - * the hash table entry for the chained table (in fact, the chained - * table may already have been deleted). - */ - - tablePtr->refCount = 1; - tablePtr->nextPtr = NULL; - Tk_DeleteOptionTable((Tk_OptionTable) tablePtr); - } - Tcl_DeleteHashTable(hashTablePtr); - ckfree(hashTablePtr); + ckfree(tablePtr); } /* @@ -1151,7 +1093,7 @@ GetOptionFromObj( objPtr->internalRep.twoPtrValue.ptr1 = (void *) tablePtr; objPtr->internalRep.twoPtrValue.ptr2 = (void *) bestPtr; objPtr->typePtr = &optionObjType; - tablePtr->refCount2++; + tablePtr->refCount++; return bestPtr; error: @@ -1224,18 +1166,37 @@ static void FreeOptionInternalRep( register Tcl_Obj *objPtr) /* Object whose internal rep to free. */ { - register OptionTable *tablePtr = (OptionTable *) objPtr->internalRep.twoPtrValue.ptr1; + register Tk_OptionTable tablePtr = (Tk_OptionTable) objPtr->internalRep.twoPtrValue.ptr1; - tablePtr->refCount2--; - if (tablePtr->refCount2 <= 0) { - ckfree(tablePtr); - } + Tk_DeleteOptionTable(tablePtr); objPtr->typePtr = NULL; objPtr->internalRep.twoPtrValue.ptr1 = NULL; objPtr->internalRep.twoPtrValue.ptr2 = NULL; } /* + *--------------------------------------------------------------------------- + * + * DupOptionInternalRep -- + * + * When a cached option object is duplicated, this is called to update the + * internal reps. + * + *--------------------------------------------------------------------------- + */ + +static void +DupOptionInternalRep( + Tcl_Obj *srcObjPtr, /* The object we are copying from. */ + Tcl_Obj *dupObjPtr) /* The object we are copying to. */ +{ + register OptionTable *tablePtr = (OptionTable *) srcObjPtr->internalRep.twoPtrValue.ptr1; + tablePtr->refCount++; + dupObjPtr->typePtr = srcObjPtr->typePtr; + dupObjPtr->internalRep = srcObjPtr->internalRep; +} + +/* *-------------------------------------------------------------- * * Tk_SetOptions -- @@ -2113,14 +2074,14 @@ TkDebugConfig( * interpreter anymore. */ { OptionTable *tablePtr = (OptionTable *) table; - Tcl_HashTable *hashTablePtr; Tcl_HashEntry *hashEntryPtr; Tcl_HashSearch search; Tcl_Obj *objPtr; + ThreadSpecificData *tsdPtr = + Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData)); objPtr = Tcl_NewObj(); - hashTablePtr = Tcl_GetAssocData(interp, OPTION_HASH_KEY, NULL); - if (hashTablePtr == NULL) { + if (!tablePtr || !tsdPtr->initialized) { return objPtr; } @@ -2129,7 +2090,7 @@ TkDebugConfig( * want still is valid. */ - for (hashEntryPtr = Tcl_FirstHashEntry(hashTablePtr, &search); + for (hashEntryPtr = Tcl_FirstHashEntry(&tsdPtr->hashTable, &search); hashEntryPtr != NULL; hashEntryPtr = Tcl_NextHashEntry(&search)) { if (tablePtr == (OptionTable *) Tcl_GetHashValue(hashEntryPtr)) { |