int main (void)
{
if (!getAlgorithmicTypeFromName ("utf8"))
abort ();
return 0;
}
/*Logic determines if the converter is Algorithmic AND/OR cached
*depending on that:
* -we either go to get data from disk and cache it (Data=TRUE, Cached=False)
* -Get it from a Hashtable (Data=X, Cached=TRUE)
* -Call dataConverter initializer (Data=TRUE, Cached=TRUE)
* -Call AlgorithmicConverter initializer (Data=FALSE, Cached=TRUE)
*/
UConverterSharedData *
ucnv_loadSharedData(const char *converterName, UConverterLookupData *lookup, UErrorCode * err) {
UConverterLookupData stackLookup;
UConverterSharedData *mySharedConverterData = NULL;
UErrorCode internalErrorCode = U_ZERO_ERROR;
if (U_FAILURE (*err)) {
return NULL;
}
if(lookup == NULL) {
lookup = &stackLookup;
}
lookup->locale[0] = 0;
lookup->options = 0;
/* In case "name" is NULL we want to open the default converter. */
if (converterName == NULL) {
lookup->realName = ucnv_io_getDefaultConverterName();
if (lookup->realName == NULL) {
*err = U_MISSING_RESOURCE_ERROR;
return NULL;
}
/* the default converter name is already canonical */
} else {
/* separate the converter name from the options */
parseConverterOptions(converterName, lookup->cnvName, lookup->locale, &lookup->options, err);
if (U_FAILURE(*err)) {
/* Very bad name used. */
return NULL;
}
/* get the canonical converter name */
lookup->realName = ucnv_io_getConverterName(lookup->cnvName, &internalErrorCode);
if (U_FAILURE(internalErrorCode) || lookup->realName == NULL) {
/*
* set the input name in case the converter was added
* without updating the alias table, or when there is no alias table
*/
lookup->realName = lookup->cnvName;
}
}
/* separate the converter name from the options */
if(lookup->realName != lookup->cnvName) {
parseConverterOptions(lookup->realName, lookup->cnvName, lookup->locale, &lookup->options, err);
lookup->realName = lookup->cnvName;
}
/* get the shared data for an algorithmic converter, if it is one */
mySharedConverterData = (UConverterSharedData *)getAlgorithmicTypeFromName(lookup->realName);
if (mySharedConverterData == NULL)
{
/* it is a data-based converter, get its shared data. */
/* Hold the cnvCacheMutex through the whole process of checking the */
/* converter data cache, and adding new entries to the cache */
/* to prevent other threads from modifying the cache during the */
/* process. */
UConverterLoadArgs args={ 0 };
args.size=sizeof(UConverterLoadArgs);
args.nestedLoads=1;
args.options=lookup->options;
args.pkg=NULL;
args.name=lookup->realName;
umtx_lock(&cnvCacheMutex);
mySharedConverterData = ucnv_load(&args, err);
umtx_unlock(&cnvCacheMutex);
if (U_FAILURE (*err) || (mySharedConverterData == NULL))
{
return NULL;
}
}
return mySharedConverterData;
}