// f_parallel_for
// begin - start of range to process
// end - 1 after end of range to process
// func - worker function of the form worker($begin, $end, $inputdata) - returns an array of max length ($end-$begin)
// blocksize - optional blocksize, refer to TBB documentation
// Returns: array of maximum length ($end-$begin)
//
// Call 'func' for non-overlapping array segments to cover all of arraydata
// This will use threads as appropriate for the machine.
// If a result is returned by 'func' it will be placed into the result array elements corresponding to the input elements
Variant f_parallel_for_array(CVarRef arraydata, CVarRef func, int64 blocksize /* = -1 */) {
if(!arraydata.isArray())
{
raise_error("parallel_for_array expected an array in first argument");
return Variant();
}
// Get the input array
const Array aArray = arraydata.asCArrRef();
ArrayData *pdArray = aArray.getArrayData();
size_t asize = pdArray->size();
if(asize==0)
return Variant();
MemoryManager *mm = MemoryManager::TheMemoryManager().get();
if (RuntimeOption::CheckMemory) {
mm->checkMemory(false);
}
TbbContext myContext = TbbContext::Entry("parallel_for_array");
std::vector<Variant> outArray;
outArray.resize(asize);
// Construct task parameters
PforTaskParameters tclass = PforTaskParameters(myContext, pdArray, func, &outArray);
TbbInitializeIfNeeded();
if (blocksize == -1) {
// Use auto_partitioner for block size
tbb::parallel_for(tbb::blocked_range<int64>(0, asize), tclass, tbb::auto_partitioner());
} else {
// Use manually set block size
tbb::parallel_for(tbb::blocked_range<int64>(0, asize, blocksize), tclass);
}
myContext.Exit();
// Create the result array
Array resPHPArray = Array::Create();
for(size_t ai=0; ai<outArray.size(); ai++) {
Variant amem = outArray[ai];
// printf(" ai=%d, append %s\n", (int)ai, amem.toString().c_str());
if(!amem.isNull())
resPHPArray.append(amem);
}
if(resPHPArray.size()==0)
return Variant(); // i.e null
return resPHPArray.getArrayData();
}
void Globals::initialize() {
StaticInits *s = s_next_inits;
while (s) {
const ClassPropTable *cpt = s->table;
const int *e = s->entries;
int n = *e++;
while (n--) {
const ClassPropTableEntry *p = cpt->m_entries + *e++;
char *addr = (char*)this + p->offset;
if (LIKELY(p->isFastInit())) {
CVarRef v = cpt->getInitV(p->init_offset);
switch (p->type) {
case KindOfBoolean:
*(bool*)addr = v.asBooleanVal();
break;
case KindOfInt64:
*(int64*)addr = v.asInt64Val();
break;
case KindOfDouble:
*(double*)addr = v.asDoubleVal();
break;
case KindOfString:
*(String*)addr = v.asCStrRef();
break;
case KindOfArray:
*(Array*)addr = v.asCArrRef();
break;
case KindOfVariant:
*(Variant*)addr = v;
break;
default:
ASSERT(false);
}
continue;
}
CVarRef v = cpt->getInitVal(p);
if (LIKELY(p->type == KindOfVariant)) {
*(Variant*)addr = v;
} else {
switch (p->type) {
case KindOfBoolean:
*(bool*)addr = v;
break;
case KindOfInt64:
*(int64*)addr = v;
break;
case KindOfDouble:
*(double*)addr = v;
break;
case KindOfString:
*(String*)addr = v;
break;
case KindOfArray:
*(Array*)addr = v;
break;
default:
ASSERT(false);
}
}
}
s = s->next;
}
}
