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arangodb
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reserve full capacity of result set

This commit is contained in:
Jan Steemann 2013-01-16 01:39:17 +01:00
parent 501eebe431
commit 3fef8b6451
1 changed files with 7 additions and 7 deletions
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14
arangod/V8Server/v8-query.cpp
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@ -1731,11 +1731,6 @@ static v8::Handle<v8::Value> JS_AllQuery (v8::Arguments const& argv) {
TRI_voc_size_t limit;
ExtractSkipAndLimit(argv, 0, skip, limit);
// setup result
v8::Handle<v8::Object> result = v8::Object::New();
v8::Handle<v8::Array> documents = v8::Array::New();
result->Set(v8::String::New("documents"), documents);
TRI_barrier_t* barrier = 0;
uint32_t total = 0;
vector<TRI_doc_mptr_t*> docs;
@ -1752,6 +1747,12 @@ static v8::Handle<v8::Value> JS_AllQuery (v8::Arguments const& argv) {
const size_t n = docs.size();
uint32_t count = 0;
// setup result
v8::Handle<v8::Object> result = v8::Object::New();
v8::Handle<v8::Array> documents = v8::Array::New(n);
// reserver full capacity in one go
result->Set(v8::String::New("documents"), documents);
for (size_t i = 0; i < n; ++i) {
v8::Handle<v8::Value> document = TRI_WrapShapedJson(col, docs[i], barrier);
@ -1761,8 +1762,7 @@ static v8::Handle<v8::Value> JS_AllQuery (v8::Arguments const& argv) {
return scope.Close(v8::ThrowException(TRI_CreateErrorObject(TRI_ERROR_OUT_OF_MEMORY)));
}
else {
documents->Set(count, document);
++count;
documents->Set(count++, document);
}
}