static c_type
createTopicKeyType (
c_type messageType,
const c_char *keyExpr)
{
c_string typeName;
c_char *name;
c_long length;
c_type keyType;
c_array keyList;
c_bool proceed;
keyList = NULL;
proceed = createMessageKeyList(messageType, keyExpr, &keyList);
if (proceed) {
typeName = c_metaName(c_metaObject(messageType));
length = strlen(typeName) + strlen(keyExpr) + 3;
name = os_alloca(length);
snprintf(name,length,"%s<%s>",typeName,keyExpr);
keyType = createKeyType(name,keyList);
c_free(typeName);
os_freea(name);
} else {
keyType = NULL;
}
c_free(keyList);
return keyType;
}
static c_bool
isGroupMatched(
c_string expr,
c_voidp args)
{
char* str;
unsigned int partitionLength, topicLength;
c_string partition, topic;
struct groupMatched* data;
data = (struct groupMatched*)args;
/* Retrieve partition- & topicname and their lengths */
partition = v_entity(data->group->partition)->name;
topic = v_entity(data->group->topic)->name;
partitionLength = strlen(partition);
topicLength = strlen(topic);
/* Allocate temporary string on stack */
str = os_alloca(partitionLength + topicLength + 1 + 1); /* include '.' */
/* Build string */
os_strcpy(str, partition);
str[partitionLength] = '.';
os_strcpy(str + partitionLength + 1, topic);
/* Match string with pattern */
if(ut_patternMatch(str, expr)) {
data->matched = 1;
}
/* Because not all platforms properly support alloca.. */
os_freea(str);
return (!data->matched);
}
static void
determineSampleInfoView (
readerViewActionArg *info)
{
gapi_unsigned_long i;
v_readerSampleSeq *samples = info->samples;
gapi_unsigned_long length;
gapi_dataSampleSeq dataSamples;
gapi_dataSample onePlaceBuffer;
gapi_boolean onHeap = FALSE;
gapi_boolean onStack = FALSE;
assert(samples->_length > 0);
length = samples->_length;
if ( length == 1 ) {
dataSamples._buffer = &onePlaceBuffer;
} else if ( length < MAX_DATASAMPLESEQ_SIZE_ON_STACK ) {
dataSamples._buffer = (gapi_dataSample *)os_alloca(length*sizeof(gapi_dataSample));
if ( dataSamples._buffer ) {
onStack = TRUE;
} else {
dataSamples._buffer = (gapi_dataSample *)os_malloc(length*sizeof(gapi_dataSample));
onHeap = TRUE;
}
} else {
dataSamples._buffer = (gapi_dataSample *)os_malloc(length*sizeof(gapi_dataSample));
onHeap = TRUE;
}
if ( dataSamples._buffer ) {
dataSamples._length = length;
dataSamples._maximum = length;
dataSamples._release = FALSE;
for ( i = 0; i < length; i++ ) {
v_dataViewSampleTemplate viewSample = v_dataViewSampleTemplate(samples->_buffer[i]);
v_dataReaderSampleTemplate sample = v_dataReaderSampleTemplate(viewSample->sample);
v_message message = sample->message;
dataSamples._buffer[i].data = (void *)C_DISPLACE(message,
info->datareaderview->datareader->userdataOffset);
copySampleInfoView(v_readerSample(viewSample), message, &dataSamples._buffer[i].info);
}
computeGenerationRanksView(samples, &dataSamples);
info->readerCopy(&dataSamples, info->readerInfo);
if ( onStack ) {
os_freea(dataSamples._buffer);
} else {
if ( onHeap ) {
os_free(dataSamples._buffer);
}
}
} else {
info->result = GAPI_RETCODE_OUT_OF_RESOURCES;
}
}
void
v_indexInit(
v_index index,
c_type instanceType,
c_array keyList,
v_reader reader)
{
c_property keyProperty;
c_structure keyStructure;
c_char fieldName[16];
c_char *keyExpr;
c_size i,nrOfKeys,totalSize;
assert(index != NULL);
assert(C_TYPECHECK(index,v_index));
assert(C_TYPECHECK(instanceType,c_type));
keyProperty = c_property(c_metaResolve(c_metaObject(instanceType),"key"));
if (keyProperty) {
keyStructure = c_structure(keyProperty->type);
nrOfKeys = c_arraySize(keyStructure->members);
c_free(keyProperty);
} else {
nrOfKeys = 0;
}
if (nrOfKeys>0) {
totalSize = nrOfKeys * strlen("key.field0,");
if (nrOfKeys > 9) {
/* For each key number greater than one digit
* i.e. number of keys > 9 add one additional
* character space to the total size.
*/
totalSize += (nrOfKeys-9);
if (nrOfKeys > 99) {
/* For each key number greater than two digits
* i.e. number of keys > 99 add one additional
* character space to the total size.
*/
totalSize += (nrOfKeys-99);
}
}
keyExpr = (char *)os_alloca(totalSize);
keyExpr[0] = 0;
for (i=0;i<nrOfKeys;i++) {
os_sprintf(fieldName,"key.field%d",i);
os_strcat(keyExpr,fieldName);
if (i<(nrOfKeys-1)) { os_strcat(keyExpr,","); }
}
} else {
keyExpr = NULL;
}
index->reader = reader;
index->sourceKeyList = createKeyList(instanceType, keyList);
index->messageKeyList = c_keep(keyList); /* keyList is either topic->messageKeyList or a user-defined keylist */
index->objects = c_tableNew(instanceType,keyExpr);
index->notEmptyList = c_tableNew(instanceType,keyExpr);
if(keyExpr){
os_freea(keyExpr);
}
index->objectType = c_keep(instanceType);
}
static c_type
createInstanceType (
v_topic topic,
c_char *keyExpr,
c_array *keyListRef)
{
c_metaObject o;
c_type instanceType, baseType, foundType;
c_type sampleType, keyType, keyInstanceType;
c_base base;
c_char *name;
os_size_t length;
int sres;
assert(C_TYPECHECK(topic,v_topic));
foundType = NULL;
if (keyExpr) {
keyType = v_topicKeyTypeCreate(topic,keyExpr,keyListRef);
} else {
keyExpr = v_topicKeyExpr(topic);
keyType = v_topicKeyType(topic);
*keyListRef = c_keep(v_topicMessageKeyList(topic));
}
sampleType = sampleTypeNew(topic);
if (sampleType) {
base = c_getBase(topic);
baseType = v_dataReaderInstance_t(base);
instanceType = c_type(c_metaDefine(c_metaObject(base),M_CLASS));
if (instanceType != NULL) {
c_class(instanceType)->extends = c_keep(c_class(baseType));
o = c_metaDeclare(c_metaObject(instanceType),
"sample",M_ATTRIBUTE);
c_property(o)->type = c_keep(sampleType);
c_free(o);
o = c_metaDeclare(c_metaObject(instanceType),
"oldest",M_ATTRIBUTE);
c_property(o)->type = (c_type)c_metaResolveType(c_metaObject(base),
"c_voidp");
assert(c_property(o)->type);
c_free(o);
c_metaFinalize(c_metaObject(instanceType));
#define INSTANCE_NAME "v_indexInstance<v_indexSample<>>"
#define INSTANCE_FORMAT "v_indexInstance<v_indexSample<%s>>"
/* The sizeof contains \0 */
length = sizeof(INSTANCE_NAME) + strlen(v_topicName(topic));
name = os_alloca(length);
sres = snprintf(name,length,INSTANCE_FORMAT,v_topicName(topic));
assert(sres >= 0 && (os_size_t) sres == (length-1));
OS_UNUSED_ARG(sres);
#undef INSTANCE_NAME
#undef INSTANCE_FORMAT
foundType = c_type(c_metaBind(c_metaObject(base),
name,
c_metaObject(instanceType)));
if (foundType == NULL) {
OS_REPORT(OS_ERROR,
"v_index::createInstanceType",V_RESULT_INTERNAL_ERROR,
"Could not create instance type");
}
os_freea(name);
if (keyType != NULL) {
keyInstanceType = c_type(c_metaDefine(c_metaObject(base),M_CLASS));
if (keyInstanceType) {
c_class(keyInstanceType)->extends = c_keep(c_class(instanceType));
o = c_metaDeclare(c_metaObject(keyInstanceType),
"key",M_ATTRIBUTE);
c_property(o)->type = c_keep(keyType);
c_free(o);
c_metaFinalize(c_metaObject(keyInstanceType));
#define INSTANCE_NAME "v_indexKeyInstance<v_indexSample<>,>"
#define INSTANCE_FORMAT "v_indexKeyInstance<v_indexSample<%s>,%s>"
/* The sizeof contains \0 */
length = sizeof(INSTANCE_NAME) +
strlen(v_topicName(topic)) +
strlen(keyExpr);
name = os_alloca(length);
sres = snprintf(name,
length,
INSTANCE_FORMAT,
v_topicName(topic),
keyExpr);
assert(sres >= 0 && (os_size_t) sres == (length-1));
OS_UNUSED_ARG(sres);
#undef INSTANCE_NAME
#undef INSTANCE_FORMAT
c_free(foundType); /* Will be overwritten, so free */
foundType = c_type(c_metaBind(c_metaObject(base),
name,
c_metaObject(keyInstanceType)));
if (foundType == NULL) {
OS_REPORT(OS_ERROR,
"v_index::createInstanceType",V_RESULT_INTERNAL_ERROR,
"Could not create key instance type");
}
os_freea(name);
c_free(keyInstanceType);
}
c_free(keyType);
}
c_free(instanceType);
c_free(baseType);
} else {
foundType = baseType; /* transfer refCount to caller */
}
c_free(sampleType);
}
return foundType;
}
