AST-1637 Support model data in BdaBuffer

base/BdaBuffer.cc

@@ -34,7 +34,7 @@ BdaBuffer::BdaBuffer(const std::size_t pool_size, const Fields& fields)
       original_capacity_(pool_size),
       remaining_capacity_(pool_size) {
   if (fields.data) {
-    data_.reserve(remaining_capacity_);
+    data_[""].reserve(remaining_capacity_);
   }
   if (fields.flags) {
     flags_.reserve(remaining_capacity_);
@@ -56,8 +56,11 @@ BdaBuffer::BdaBuffer(const BdaBuffer& other, const Fields& fields,
       original_capacity_(other.original_capacity_ - other.remaining_capacity_),
       remaining_capacity_(0) {
   if (fields.data) {
-    if (copy_fields.data) data_ = other.data_;
-    data_.resize(original_capacity_);
+    const auto other_it = other.data_.find("");
+    if (copy_fields.data && other_it != other.data_.end()) {
+      data_.insert(*other_it);
+    }
+    data_[""].resize(original_capacity_);
   }
   if (fields.flags) {
     if (copy_fields.flags) flags_ = other.flags_;
@@ -94,13 +97,15 @@ bool BdaBuffer::AddRow(double time, double interval, double exposure,
   }
   remaining_capacity_ -= n_elements;
   std::size_t offset = 0;
-  if (data_.capacity() > 0) {
-    offset = data_.size();
+  auto data_it = data_.find("");
+  if (data_it != data_.end()) {
+    aocommon::UVector<std::complex<float>>& data_vector = data_it->second;
+    offset = data_vector.size();
     if (data) {
-      data_.insert(data_.end(), data, data + n_elements);
+      data_vector.insert(data_vector.end(), data, data + n_elements);
     } else {
       const float kNaN = std::numeric_limits<float>::quiet_NaN();
-      data_.insert(data_.end(), n_elements, {kNaN, kNaN});
+      data_vector.insert(data_vector.end(), n_elements, {kNaN, kNaN});
     }
   }
   if (flags_.capacity() > 0) {