static int32_t
usprep_internal_flushCache(UBool noRefCount)
{
UStringPrepProfile * profile = NULL;
UStringPrepKey * key = NULL;
int32_t pos = -1;
int32_t deletedNum = 0;
const UHashElement * e;
/*
* if shared data hasn't even been lazy evaluated yet
* return 0
*/
umtx_lock(&usprepMutex);
if (SHARED_DATA_HASHTABLE == NULL)
{
umtx_unlock(&usprepMutex);
return 0;
}
/*creates an enumeration to iterate through every element in the table */
while ((e = uhash_nextElement(SHARED_DATA_HASHTABLE, &pos)) != NULL)
{
profile = (UStringPrepProfile *) e->value.pointer;
key = (UStringPrepKey *) e->key.pointer;
if ((noRefCount == FALSE && profile->refCount == 0) ||
noRefCount == TRUE)
{
deletedNum++;
uhash_removeElement(SHARED_DATA_HASHTABLE, e);
/* unload the data */
usprep_unload(profile);
if (key->name != NULL)
{
uprv_free(key->name);
key->name = NULL;
}
if (key->path != NULL)
{
uprv_free(key->path);
key->path = NULL;
}
uprv_free(profile);
uprv_free(key);
}
}
umtx_unlock(&usprepMutex);
return deletedNum;
}
static UStringPrepProfile*
usprep_getProfile(const char* path,
const char* name,
UErrorCode *status){
UStringPrepProfile* profile = NULL;
initCache(status);
if(U_FAILURE(*status)){
return NULL;
}
UStringPrepKey stackKey;
/*
* const is cast way to save malloc, strcpy and free calls
* we use the passed in pointers for fetching the data from the
* hash table which is safe
*/
stackKey.name = (char*) name;
stackKey.path = (char*) path;
/* fetch the data from the cache */
umtx_lock(usprepMutex());
profile = (UStringPrepProfile*) (uhash_get(SHARED_DATA_HASHTABLE,&stackKey));
if(profile != NULL) {
profile->refCount++;
}
umtx_unlock(usprepMutex());
if(profile == NULL) {
/* else load the data and put the data in the cache */
LocalMemory<UStringPrepProfile> newProfile;
if(newProfile.allocateInsteadAndReset() == NULL) {
*status = U_MEMORY_ALLOCATION_ERROR;
return NULL;
}
/* load the data */
if(!loadData(newProfile.getAlias(), path, name, _SPREP_DATA_TYPE, status) || U_FAILURE(*status) ){
return NULL;
}
/* get the options */
newProfile->doNFKC = (UBool)((newProfile->indexes[_SPREP_OPTIONS] & _SPREP_NORMALIZATION_ON) > 0);
newProfile->checkBiDi = (UBool)((newProfile->indexes[_SPREP_OPTIONS] & _SPREP_CHECK_BIDI_ON) > 0);
LocalMemory<UStringPrepKey> key;
LocalMemory<char> keyName;
LocalMemory<char> keyPath;
if( key.allocateInsteadAndReset() == NULL ||
keyName.allocateInsteadAndCopy(static_cast<int32_t>(uprv_strlen(name)+1)) == NULL ||
(path != NULL &&
keyPath.allocateInsteadAndCopy(static_cast<int32_t>(uprv_strlen(path)+1)) == NULL)
) {
*status = U_MEMORY_ALLOCATION_ERROR;
usprep_unload(newProfile.getAlias());
return NULL;
}
umtx_lock(usprepMutex());
// If another thread already inserted the same key/value, refcount and cleanup our thread data
profile = (UStringPrepProfile*) (uhash_get(SHARED_DATA_HASHTABLE,&stackKey));
if(profile != NULL) {
profile->refCount++;
usprep_unload(newProfile.getAlias());
}
else {
/* initialize the key members */
key->name = keyName.orphan();
uprv_strcpy(key->name, name);
if(path != NULL){
key->path = keyPath.orphan();
uprv_strcpy(key->path, path);
}
profile = newProfile.orphan();
/* add the data object to the cache */
profile->refCount = 1;
uhash_put(SHARED_DATA_HASHTABLE, key.orphan(), profile, status);
}
umtx_unlock(usprepMutex());
}
return profile;
}
static UStringPrepProfile*
usprep_getProfile(const char* path,
const char* name,
UErrorCode *status){
UStringPrepProfile* profile = NULL;
initCache(status);
if(U_FAILURE(*status)){
return NULL;
}
UStringPrepKey stackKey;
/*
* const is cast way to save malloc, strcpy and free calls
* we use the passed in pointers for fetching the data from the
* hash table which is safe
*/
stackKey.name = (char*) name;
stackKey.path = (char*) path;
/* fetch the data from the cache */
profile = (UStringPrepProfile*) (uhash_get(SHARED_DATA_HASHTABLE,&stackKey));
if(profile == NULL){
UStringPrepKey* key = (UStringPrepKey*) uprv_malloc(sizeof(UStringPrepKey));
if(key == NULL){
*status = U_MEMORY_ALLOCATION_ERROR;
return NULL;
}
/* else load the data and put the data in the cache */
profile = (UStringPrepProfile*) uprv_malloc(sizeof(UStringPrepProfile));
if(profile == NULL){
*status = U_MEMORY_ALLOCATION_ERROR;
uprv_free(key);
return NULL;
}
/* initialize the data struct members */
uprv_memset(profile->indexes,0,sizeof(profile->indexes));
profile->mappingData = NULL;
profile->sprepData = NULL;
profile->refCount = 0;
/* initialize the key memebers */
key->name = (char*) uprv_malloc(uprv_strlen(name)+1);
if(key->name == NULL){
*status = U_MEMORY_ALLOCATION_ERROR;
uprv_free(key);
uprv_free(profile);
return NULL;
}
uprv_strcpy(key->name, name);
key->path=NULL;
if(path != NULL){
key->path = (char*) uprv_malloc(uprv_strlen(path)+1);
if(key->path == NULL){
*status = U_MEMORY_ALLOCATION_ERROR;
uprv_free(key->path);
uprv_free(key);
uprv_free(profile);
return NULL;
}
uprv_strcpy(key->path, path);
}
/* load the data */
if(!loadData(profile, path, name, _SPREP_DATA_TYPE, status) || U_FAILURE(*status) ){
return NULL;
}
/* get the options */
profile->doNFKC = (UBool)((profile->indexes[_SPREP_OPTIONS] & _SPREP_NORMALIZATION_ON) > 0);
profile->checkBiDi = (UBool)((profile->indexes[_SPREP_OPTIONS] & _SPREP_CHECK_BIDI_ON) > 0);
if(profile->checkBiDi) {
profile->bdp = ubidi_getSingleton(status);
if(U_FAILURE(*status)) {
usprep_unload(profile);
uprv_free(key->path);
uprv_free(key);
uprv_free(profile);
return NULL;
}
} else {
profile->bdp = NULL;
}
umtx_lock(&usprepMutex);
/* add the data object to the cache */
uhash_put(SHARED_DATA_HASHTABLE, key, profile, status);
umtx_unlock(&usprepMutex);
}
umtx_lock(&usprepMutex);
/* increment the refcount */
profile->refCount++;
umtx_unlock(&usprepMutex);
return profile;
}
