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;
}
void
PluralRules::initSamples(UErrorCode& status) {
if (U_FAILURE(status)) {
return;
}
Mutex lock(&pluralMutex);
if (mSamples) {
return;
}
// Note, the original design let you have multiple rules with the same keyword. But
// we don't use that in our data and existing functions in this implementation don't
// fully support it (for example, the returned keywords is a list and not a set).
//
// So I don't support this here either. If you ask for samples, or for all values,
// you will get information about the first rule with that keyword, not all rules with
// that keyword.
int32_t maxIndex = 0;
int32_t otherIndex = -1; // the value -1 will indicate we added 'other' at end
RuleChain* rc = mRules;
while (rc != NULL) {
if (rc->ruleHeader != NULL) {
if (otherIndex == -1 && 0 == rc->keyword.compare(PLURAL_KEYWORD_OTHER, 5)) {
otherIndex = maxIndex;
}
++maxIndex;
}
rc = rc->next;
}
if (otherIndex == -1) {
++maxIndex;
}
LocalMemory<int32_t> newSampleInfo;
if (NULL == newSampleInfo.allocateInsteadAndCopy(maxIndex)) {
status = U_MEMORY_ALLOCATION_ERROR;
return;
}
const int32_t LIMIT_MASK = 0x1 << 31;
rc = mRules;
int32_t n = 0;
while (rc != NULL) {
if (rc->ruleHeader != NULL) {
newSampleInfo[n++] = rc->ruleHeader->isLimited() ? LIMIT_MASK : 0;
}
rc = rc->next;
}
if (otherIndex == -1) {
newSampleInfo[maxIndex - 1] = 0; // unlimited
}
MaybeStackArray<SampleRecord, 10> newSamples;
int32_t sampleCount = 0;
int32_t limit = getRepeatLimit() * MAX_SAMPLES * 2;
if (limit < 10) {
limit = 10;
}
for (int i = 0, keywordsRemaining = maxIndex;
keywordsRemaining > 0 && i < limit;
++i) {
double val = i / 2.0;
n = 0;
rc = mRules;
int32_t found = -1;
while (rc != NULL) {
if (rc->ruleHeader != NULL) {
if (rc->ruleHeader->isFulfilled(val)) {
found = n;
break;
}
++n;
}
rc = rc->next;
}
if (found == -1) {
// 'other'. If there is an 'other' rule, the rule set is bad since nothing
// should leak through, but we don't bother to report that here.
found = otherIndex == -1 ? maxIndex - 1 : otherIndex;
}
if (newSampleInfo[found] == MAX_SAMPLES) { // limit flag not set
continue;
}
newSampleInfo[found] += 1; // won't impact limit flag
if (sampleCount == newSamples.getCapacity()) {
int32_t newCapacity = sampleCount < 20 ? 128 : sampleCount * 2;
if (NULL == newSamples.resize(newCapacity, sampleCount)) {
status = U_MEMORY_ALLOCATION_ERROR;
return;
}
}
newSamples[sampleCount].ruleIndex = found;
newSamples[sampleCount].value = val;
++sampleCount;
if (newSampleInfo[found] == MAX_SAMPLES) { // limit flag not set
--keywordsRemaining;
}
}
// sort the values by index, leaving order otherwise unchanged
// this is just a selection sort for simplicity
LocalMemory<double> values;
if (NULL == values.allocateInsteadAndCopy(sampleCount)) {
status = U_MEMORY_ALLOCATION_ERROR;
return;
}
for (int i = 0, j = 0; i < maxIndex; ++i) {
for (int k = 0; k < sampleCount; ++k) {
if (newSamples[k].ruleIndex == i) {
values[j++] = newSamples[k].value;
}
}
}
// convert array of mask/lengths to array of mask/limits
limit = 0;
for (int i = 0; i < maxIndex; ++i) {
int32_t info = newSampleInfo[i];
int32_t len = info & ~LIMIT_MASK;
limit += len;
// if a rule is 'unlimited' but has fewer than MAX_SAMPLES samples,
// it's not really unlimited, so mark it as limited
int32_t mask = len < MAX_SAMPLES ? LIMIT_MASK : info & LIMIT_MASK;
newSampleInfo[i] = limit | mask;
}
// ok, we've got good data
mSamples = values.orphan();
mSampleInfo = newSampleInfo.orphan();
mSampleInfoCount = maxIndex;
}