/**
* xmlLockLibrary:
*
* xmlLockLibrary() is used to take out a re-entrant lock on the libxml2
* library.
*/
XMLPUBFUNEXPORT void
xmlLockLibrary(void)
{
#ifdef DEBUG_THREADS
xmlGenericError(xmlGenericErrorContext, "xmlLockLibrary()\n");
#endif
xmlRMutexLock(xmlLibraryLock);
}
/**
* xsltFreeLocales:
*
* Cleanup function for the locale support on shutdown
*/
void
xsltFreeLocales(void) {
#ifdef XSLT_LOCALE_WINAPI
xmlRMutexLock(xsltLocaleMutex);
xmlFree(xsltLocaleList);
xsltLocaleList = NULL;
xmlRMutexUnlock(xsltLocaleMutex);
#endif
}
/**
* xmlDictFree:
* @dict: the dictionnary
*
* Free the hash @dict and its contents. The userdata is
* deallocated with @f if provided.
*/
void
xmlDictFree(xmlDictPtr dict) {
int i;
xmlDictEntryPtr iter;
xmlDictEntryPtr next;
int inside_dict = 0;
xmlDictStringsPtr pool, nextp;
if (dict == NULL)
return;
if (!xmlDictInitialized)
if (!xmlInitializeDict())
return;
/* decrement the counter, it may be shared by a parser and docs */
xmlRMutexLock(xmlDictMutex);
dict->ref_counter--;
if (dict->ref_counter > 0) {
xmlRMutexUnlock(xmlDictMutex);
return;
}
xmlRMutexUnlock(xmlDictMutex);
if (dict->subdict != NULL) {
xmlDictFree(dict->subdict);
}
if (dict->dict) {
for (i = 0; ((i < dict->size) && (dict->nbElems > 0)); i++) {
iter = &(dict->dict[i]);
if (iter->valid == 0)
continue;
inside_dict = 1;
while (iter) {
next = iter->next;
if (!inside_dict)
xmlFree(iter);
dict->nbElems--;
inside_dict = 0;
iter = next;
}
inside_dict = 0;
}
xmlFree(dict->dict);
}
pool = dict->strings;
while (pool != NULL) {
nextp = pool->next;
xmlFree(pool);
pool = nextp;
}
xmlFreeRMutex(dict->mutex);
xmlFree(dict);
}
/**
* xmlDictReference:
* @dict: the dictionary
*
* Increment the reference counter of a dictionary
*
* Returns 0 in case of success and -1 in case of error
*/
int
xmlDictReference(xmlDictPtr dict) {
if (!xmlDictInitialized)
if (!__xmlInitializeDict())
return(-1);
if (dict == NULL) return -1;
xmlRMutexLock(xmlDictMutex);
dict->ref_counter++;
xmlRMutexUnlock(xmlDictMutex);
return(0);
}
int __xmlRandom(void) {
int ret;
if (xmlDictInitialized == 0)
__xmlInitializeDict();
xmlRMutexLock(xmlDictMutex);
#ifdef HAVE_RAND_R
ret = rand_r(& rand_seed);
#else
ret = rand();
#endif
xmlRMutexUnlock(xmlDictMutex);
return(ret);
}
static void
xsltEnumSupportedLocales(void) {
xmlRMutexLock(xsltLocaleMutex);
if (xsltLocaleListSize <= 0) {
size_t len;
EnumSystemLocalesA(xsltCountSupportedLocales, LCID_SUPPORTED);
len = xsltLocaleListSize * sizeof(xsltRFC1766Info);
xsltLocaleList = xmlMalloc(len);
memset(xsltLocaleList, 0, len);
EnumSystemLocalesA(xsltIterateSupportedLocales, LCID_SUPPORTED);
}
xmlRMutexUnlock(xsltLocaleMutex);
}
/**
* __xmlInitializeDict:
*
* This function is not public
* Do the dictionary mutex initialization.
* this function is not thread safe, initialization should
* normally be done once at setup when called from xmlOnceInit()
* we may also land in this code if thread support is not compiled in
*
* Returns 0 if initialization was already done, and 1 if that
* call led to the initialization
*/
int __xmlInitializeDict(void) {
if (xmlDictInitialized)
return(1);
if ((xmlDictMutex = xmlNewRMutex()) == NULL)
return(0);
xmlRMutexLock(xmlDictMutex);
#ifdef DICT_RANDOMIZATION
#ifdef HAVE_RAND_R
rand_seed = time(NULL);
rand_r(& rand_seed);
#else
srand(time(NULL));
#endif
#endif
xmlDictInitialized = 1;
xmlRMutexUnlock(xmlDictMutex);
return(1);
}
