void buildCollection() {
BSONObj info;
// Create a collection with specified extent sizes
BSONObj command = BSON( "create" << collname() << "capped" << true <<
"$nExtents" << extentSizes() << "autoIndexId" << false );
ASSERT(client()->runCommand(dbname(), command, info));
// Populate documents.
for(int i = 0; i < numDocs(); ++i) {
client()->insert(ns(), BSON( "_id" << i << "ts" << i << "payload" << payload8k() ));
}
}
int32_t IndexReader::numDeletedDocs() {
return (maxDoc() - numDocs());
}