diff options
Diffstat (limited to 'dict.c')
-rw-r--r-- | dict.c | 68 |
1 files changed, 62 insertions, 6 deletions
@@ -71,6 +71,50 @@ struct _xmlDict { }; /* + * A mutex for modifying the reference counter for shared + * dictionaries. + */ +static xmlRMutexPtr xmlDictMutex = NULL; + +/* + * Whether the dictionary mutex was initialized. + */ +static int xmlDictInitialized = 0; + +/** + * xmlInitializeCatalog: + * + * Do the dictionary mutex initialization. + * this function is not thread safe, initialization should + * preferably be done once at startup + */ +static int xmlInitializeDict() { + if (xmlDictInitialized) + return(1); + + if ((xmlDictMutex = xmlNewRMutex()) == NULL) + return(0); + + xmlDictInitialized = 1; + return(1); +} + +/** + * xmlCatalogCleanup: + * + * Free the dictionary mutex. + */ +void +xmlDictCleanup(void) { + if (!xmlDictInitialized) + return; + + xmlFreeRMutex(xmlDictMutex); + + xmlDictInitialized = 0; +} + +/* * xmlDictAddString: * @dict: the dictionnary * @name: the name of the userdata @@ -278,7 +322,11 @@ xmlDictComputeQKey(const xmlChar *prefix, const xmlChar *name, int len) xmlDictPtr xmlDictCreate(void) { xmlDictPtr dict; - + + if (!xmlDictInitialized) + if (!xmlInitializeDict()) + return(NULL); + dict = xmlMalloc(sizeof(xmlDict)); if (dict) { dict->ref_counter = 1; @@ -332,10 +380,14 @@ xmlDictCreateSub(xmlDictPtr sub) { */ int xmlDictReference(xmlDictPtr dict) { + if (!xmlDictInitialized) + if (!xmlInitializeDict()) + return(-1); + if (dict == NULL) return -1; - xmlRMutexLock(dict->mutex); + xmlRMutexLock(xmlDictMutex); dict->ref_counter++; - xmlRMutexUnlock(dict->mutex); + xmlRMutexUnlock(xmlDictMutex); return(0); } @@ -451,15 +503,19 @@ xmlDictFree(xmlDictPtr dict) { if (dict == NULL) return; + if (!xmlDictInitialized) + if (!xmlInitializeDict()) + return; + /* decrement the counter, it may be shared by a parser and docs */ - xmlRMutexLock(dict->mutex); + xmlRMutexLock(xmlDictMutex); dict->ref_counter--; if (dict->ref_counter > 0) { - xmlRMutexUnlock(dict->mutex); + xmlRMutexUnlock(xmlDictMutex); return; } - xmlRMutexUnlock(dict->mutex); + xmlRMutexUnlock(xmlDictMutex); if (dict->subdict != NULL) { xmlDictFree(dict->subdict); |