integrating the existing state of TON Storage / TON Payments / CPS Fift development branches

rldp2/InboundTransfer.cpp

@@ -0,0 +1,58 @@
+#include "InboundTransfer.h"
+
+#include "common/errorcode.h"
+
+namespace ton {
+namespace rldp2 {
+size_t InboundTransfer::total_size() const {
+  return data_.size();
+}
+
+std::map<td::uint32, InboundTransfer::Part> &InboundTransfer::parts() {
+  return parts_;
+}
+
+bool InboundTransfer::is_part_completed(td::uint32 part_i) {
+  return parts_.count(part_i) == 0 && part_i < next_part_;
+}
+
+td::Result<InboundTransfer::Part *> InboundTransfer::get_part(td::uint32 part_i, const ton::fec::FecType &fec_type) {
+  auto it = parts_.find(part_i);
+  if (it != parts_.end()) {
+    return &it->second;
+  }
+  //TODO: pass offset off and process even newer parts.
+  //LOG_CHECK(next_part_ >= part_i) << next_part_ << " >= " << part_i;
+  if (next_part_ == part_i && parts_.size() < 20) {
+    auto offset = offset_;
+    offset_ += fec_type.size();
+    if (offset_ > total_size()) {
+      return td::Status::Error(ErrorCode::protoviolation,
+                               PSTRING() << "too big part: offset=" << offset_ << " total_size=" << total_size()
+                                         << " total_size=" << fec_type.size() << " part=" << part_i);
+    }
+
+    auto decoder = fec_type.create_decoder().move_as_ok();
+    auto it = parts_.emplace(part_i, Part{std::move(decoder), RldpReceiver(RldpSender::Config()), offset});
+    next_part_++;
+    return &it.first->second;
+  }
+  return nullptr;
+}
+
+void InboundTransfer::finish_part(td::uint32 part_i, td::Slice data) {
+  auto it = parts_.find(part_i);
+  CHECK(it != parts_.end());
+  data_.as_slice().substr(it->second.offset).copy_from(data);
+  parts_.erase(it);
+}
+
+td::optional<td::Result<td::BufferSlice>> InboundTransfer::try_finish() {
+  if (parts_.empty() && offset_ == data_.size()) {
+    return std::move(data_);
+  }
+  return {};
+}
+
+}  // namespace rldp2
+}  // namespace ton