Media CAS Proxy SDK release: 16.5.0

ubuntu/google/protobuf/repeated_field.cc

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+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Author: kenton@google.com (Kenton Varda)
+//  Based on original Protocol Buffers design by
+//  Sanjay Ghemawat, Jeff Dean, and others.
+
+#include <google/protobuf/repeated_field.h>
+
+#include <algorithm>
+
+#include <google/protobuf/stubs/logging.h>
+#include <google/protobuf/stubs/common.h>
+#include <google/protobuf/implicit_weak_message.h>
+
+#include <google/protobuf/port_def.inc>
+
+namespace google {
+namespace protobuf {
+
+namespace internal {
+
+void** RepeatedPtrFieldBase::InternalExtend(int extend_amount) {
+  int new_size = current_size_ + extend_amount;
+  if (total_size_ >= new_size) {
+    // N.B.: rep_ is non-NULL because extend_amount is always > 0, hence
+    // total_size must be non-zero since it is lower-bounded by new_size.
+    return &rep_->elements[current_size_];
+  }
+  Rep* old_rep = rep_;
+  Arena* arena = GetArena();
+  new_size = std::max(internal::kRepeatedFieldLowerClampLimit,
+                      std::max(total_size_ * 2, new_size));
+  GOOGLE_CHECK_LE(new_size, (std::numeric_limits<size_t>::max() - kRepHeaderSize) /
+                         sizeof(old_rep->elements[0]))
+      << "Requested size is too large to fit into size_t.";
+  size_t bytes = kRepHeaderSize + sizeof(old_rep->elements[0]) * new_size;
+  if (arena == NULL) {
+    rep_ = reinterpret_cast<Rep*>(::operator new(bytes));
+  } else {
+    rep_ = reinterpret_cast<Rep*>(Arena::CreateArray<char>(arena, bytes));
+  }
+#if defined(__GXX_DELETE_WITH_SIZE__) || defined(__cpp_sized_deallocation)
+  const int old_total_size = total_size_;
+#endif
+  total_size_ = new_size;
+  if (old_rep && old_rep->allocated_size > 0) {
+    memcpy(rep_->elements, old_rep->elements,
+           old_rep->allocated_size * sizeof(rep_->elements[0]));
+    rep_->allocated_size = old_rep->allocated_size;
+  } else {
+    rep_->allocated_size = 0;
+  }
+  if (arena == NULL) {
+#if defined(__GXX_DELETE_WITH_SIZE__) || defined(__cpp_sized_deallocation)
+    const size_t old_size =
+        old_total_size * sizeof(rep_->elements[0]) + kRepHeaderSize;
+    ::operator delete(static_cast<void*>(old_rep), old_size);
+#else
+    ::operator delete(static_cast<void*>(old_rep));
+#endif
+  }
+  return &rep_->elements[current_size_];
+}
+
+void RepeatedPtrFieldBase::Reserve(int new_size) {
+  if (new_size > current_size_) {
+    InternalExtend(new_size - current_size_);
+  }
+}
+
+void RepeatedPtrFieldBase::CloseGap(int start, int num) {
+  if (rep_ == NULL) return;
+  // Close up a gap of "num" elements starting at offset "start".
+  for (int i = start + num; i < rep_->allocated_size; ++i)
+    rep_->elements[i - num] = rep_->elements[i];
+  current_size_ -= num;
+  rep_->allocated_size -= num;
+}
+
+MessageLite* RepeatedPtrFieldBase::AddWeak(const MessageLite* prototype) {
+  if (rep_ != NULL && current_size_ < rep_->allocated_size) {
+    return reinterpret_cast<MessageLite*>(rep_->elements[current_size_++]);
+  }
+  if (!rep_ || rep_->allocated_size == total_size_) {
+    Reserve(total_size_ + 1);
+  }
+  ++rep_->allocated_size;
+  MessageLite* result = prototype
+                            ? prototype->New(arena_)
+                            : Arena::CreateMessage<ImplicitWeakMessage>(arena_);
+  rep_->elements[current_size_++] = result;
+  return result;
+}
+
+}  // namespace internal
+
+
+template class PROTOBUF_EXPORT_TEMPLATE_DEFINE RepeatedField<bool>;
+template class PROTOBUF_EXPORT_TEMPLATE_DEFINE RepeatedField<int32>;
+template class PROTOBUF_EXPORT_TEMPLATE_DEFINE RepeatedField<uint32>;
+template class PROTOBUF_EXPORT_TEMPLATE_DEFINE RepeatedField<int64>;
+template class PROTOBUF_EXPORT_TEMPLATE_DEFINE RepeatedField<uint64>;
+template class PROTOBUF_EXPORT_TEMPLATE_DEFINE RepeatedField<float>;
+template class PROTOBUF_EXPORT_TEMPLATE_DEFINE RepeatedField<double>;
+template class PROTOBUF_EXPORT_TEMPLATE_DEFINE RepeatedPtrField<std::string>;
+
+}  // namespace protobuf
+}  // namespace google