diff options
Diffstat (limited to 'third_party/protobuf/3.4.0/src/google/protobuf/map_field.cc')
| -rw-r--r-- | third_party/protobuf/3.4.0/src/google/protobuf/map_field.cc | 454 |
1 files changed, 454 insertions, 0 deletions
diff --git a/third_party/protobuf/3.4.0/src/google/protobuf/map_field.cc b/third_party/protobuf/3.4.0/src/google/protobuf/map_field.cc new file mode 100644 index 0000000000..64dcc990ff --- /dev/null +++ b/third_party/protobuf/3.4.0/src/google/protobuf/map_field.cc @@ -0,0 +1,454 @@ +// 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. + +#include <google/protobuf/map_field.h> +#include <google/protobuf/map_field_inl.h> + +#include <vector> + +namespace google { +namespace protobuf { +namespace internal { + +MapFieldBase::~MapFieldBase() { + if (repeated_field_ != NULL && arena_ == NULL) delete repeated_field_; +} + +const RepeatedPtrFieldBase& MapFieldBase::GetRepeatedField() const { + SyncRepeatedFieldWithMap(); + return *repeated_field_; +} + +RepeatedPtrFieldBase* MapFieldBase::MutableRepeatedField() { + SyncRepeatedFieldWithMap(); + SetRepeatedDirty(); + return repeated_field_; +} + +size_t MapFieldBase::SpaceUsedExcludingSelfLong() const { + mutex_.Lock(); + size_t size = SpaceUsedExcludingSelfNoLock(); + mutex_.Unlock(); + return size; +} + +size_t MapFieldBase::SpaceUsedExcludingSelfNoLock() const { + if (repeated_field_ != NULL) { + return repeated_field_->SpaceUsedExcludingSelfLong(); + } else { + return 0; + } +} + +bool MapFieldBase::IsMapValid() const { + // "Acquire" insures the operation after SyncRepeatedFieldWithMap won't get + // executed before state_ is checked. + Atomic32 state = google::protobuf::internal::Acquire_Load(&state_); + return state != STATE_MODIFIED_REPEATED; +} + +void MapFieldBase::SetMapDirty() { state_ = STATE_MODIFIED_MAP; } + +void MapFieldBase::SetRepeatedDirty() { state_ = STATE_MODIFIED_REPEATED; } + +void* MapFieldBase::MutableRepeatedPtrField() const { return repeated_field_; } + +void MapFieldBase::SyncRepeatedFieldWithMap() const { + // "Acquire" insures the operation after SyncRepeatedFieldWithMap won't get + // executed before state_ is checked. + Atomic32 state = google::protobuf::internal::Acquire_Load(&state_); + if (state == STATE_MODIFIED_MAP) { + mutex_.Lock(); + // Double check state, because another thread may have seen the same state + // and done the synchronization before the current thread. + if (state_ == STATE_MODIFIED_MAP) { + SyncRepeatedFieldWithMapNoLock(); + // "Release" insures state_ can only be changed "after" + // SyncRepeatedFieldWithMapNoLock is finished. + google::protobuf::internal::Release_Store(&state_, CLEAN); + } + mutex_.Unlock(); + } +} + +void MapFieldBase::SyncRepeatedFieldWithMapNoLock() const { + if (repeated_field_ == NULL) { + repeated_field_ = Arena::CreateMessage<RepeatedPtrField<Message> >(arena_); + } +} + +void MapFieldBase::SyncMapWithRepeatedField() const { + // "Acquire" insures the operation after SyncMapWithRepeatedField won't get + // executed before state_ is checked. + Atomic32 state = google::protobuf::internal::Acquire_Load(&state_); + if (state == STATE_MODIFIED_REPEATED) { + mutex_.Lock(); + // Double check state, because another thread may have seen the same state + // and done the synchronization before the current thread. + if (state_ == STATE_MODIFIED_REPEATED) { + SyncMapWithRepeatedFieldNoLock(); + // "Release" insures state_ can only be changed "after" + // SyncRepeatedFieldWithMapNoLock is finished. + google::protobuf::internal::Release_Store(&state_, CLEAN); + } + mutex_.Unlock(); + } +} + +// ------------------DynamicMapField------------------ +DynamicMapField::DynamicMapField(const Message* default_entry) + : default_entry_(default_entry) { +} + +DynamicMapField::DynamicMapField(const Message* default_entry, + Arena* arena) + : TypeDefinedMapFieldBase<MapKey, MapValueRef>(arena), + default_entry_(default_entry) { +} + +DynamicMapField::~DynamicMapField() { + // DynamicMapField owns map values. Need to delete them before clearing + // the map. + for (Map<MapKey, MapValueRef>::iterator iter = map_.begin(); + iter != map_.end(); ++iter) { + iter->second.DeleteData(); + } + map_.clear(); +} + +int DynamicMapField::size() const { + return GetMap().size(); +} + +bool DynamicMapField::ContainsMapKey( + const MapKey& map_key) const { + const Map<MapKey, MapValueRef>& map = GetMap(); + Map<MapKey, MapValueRef>::const_iterator iter = map.find(map_key); + return iter != map.end(); +} + +bool DynamicMapField::InsertOrLookupMapValue( + const MapKey& map_key, MapValueRef* val) { + // Always use mutable map because users may change the map value by + // MapValueRef. + Map<MapKey, MapValueRef>* map = MutableMap(); + Map<MapKey, MapValueRef>::iterator iter = map->find(map_key); + if (iter == map->end()) { + // Insert + MapValueRef& map_val = (*map)[map_key]; + const FieldDescriptor* val_des = + default_entry_->GetDescriptor()->FindFieldByName("value"); + map_val.SetType(val_des->cpp_type()); + // Allocate memory for the inserted MapValueRef, and initialize to + // default value. + switch (val_des->cpp_type()) { +#define HANDLE_TYPE(CPPTYPE, TYPE) \ + case google::protobuf::FieldDescriptor::CPPTYPE_##CPPTYPE: { \ + TYPE * value = new TYPE(); \ + map_val.SetValue(value); \ + break; \ + } + HANDLE_TYPE(INT32, int32); + HANDLE_TYPE(INT64, int64); + HANDLE_TYPE(UINT32, uint32); + HANDLE_TYPE(UINT64, uint64); + HANDLE_TYPE(DOUBLE, double); + HANDLE_TYPE(FLOAT, float); + HANDLE_TYPE(BOOL, bool); + HANDLE_TYPE(STRING, string); + HANDLE_TYPE(ENUM, int32); +#undef HANDLE_TYPE + case google::protobuf::FieldDescriptor::CPPTYPE_MESSAGE: { + const Message& message = default_entry_->GetReflection()->GetMessage( + *default_entry_, val_des); + Message* value = message.New(); + map_val.SetValue(value); + break; + } + } + val->CopyFrom(map_val); + return true; + } + // map_key is already in the map. Make sure (*map)[map_key] is not called. + // [] may reorder the map and iterators. + val->CopyFrom(iter->second); + return false; +} + +bool DynamicMapField::DeleteMapValue(const MapKey& map_key) { + MapFieldBase::SyncMapWithRepeatedField(); + Map<MapKey, MapValueRef>::iterator iter = map_.find(map_key); + if (iter == map_.end()) { + return false; + } + // Set map dirty only if the delete is successful. + MapFieldBase::SetMapDirty(); + iter->second.DeleteData(); + map_.erase(iter); + return true; +} + +const Map<MapKey, MapValueRef>& DynamicMapField::GetMap() const { + MapFieldBase::SyncMapWithRepeatedField(); + return map_; +} + +Map<MapKey, MapValueRef>* DynamicMapField::MutableMap() { + MapFieldBase::SyncMapWithRepeatedField(); + MapFieldBase::SetMapDirty(); + return &map_; +} + +void DynamicMapField::SetMapIteratorValue(MapIterator* map_iter) const { + Map<MapKey, MapValueRef>::const_iterator iter = + TypeDefinedMapFieldBase<MapKey, MapValueRef>::InternalGetIterator( + map_iter); + if (iter == map_.end()) return; + map_iter->key_.CopyFrom(iter->first); + map_iter->value_.CopyFrom(iter->second); +} + +void DynamicMapField::SyncRepeatedFieldWithMapNoLock() const { + const Reflection* reflection = default_entry_->GetReflection(); + const FieldDescriptor* key_des = + default_entry_->GetDescriptor()->FindFieldByName("key"); + const FieldDescriptor* val_des = + default_entry_->GetDescriptor()->FindFieldByName("value"); + if (MapFieldBase::repeated_field_ == NULL) { + if (MapFieldBase::arena_ == NULL) { + MapFieldBase::repeated_field_ = new RepeatedPtrField<Message>(); + } else { + MapFieldBase::repeated_field_ = + Arena::CreateMessage<RepeatedPtrField<Message> >( + MapFieldBase::arena_); + } + } + + MapFieldBase::repeated_field_->Clear(); + + for (Map<MapKey, MapValueRef>::const_iterator it = map_.begin(); + it != map_.end(); ++it) { + Message* new_entry = default_entry_->New(); + MapFieldBase::repeated_field_->AddAllocated(new_entry); + const MapKey& map_key = it->first; + switch (key_des->cpp_type()) { + case google::protobuf::FieldDescriptor::CPPTYPE_STRING: + reflection->SetString(new_entry, key_des, map_key.GetStringValue()); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_INT64: + reflection->SetInt64(new_entry, key_des, map_key.GetInt64Value()); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_INT32: + reflection->SetInt32(new_entry, key_des, map_key.GetInt32Value()); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_UINT64: + reflection->SetUInt64(new_entry, key_des, map_key.GetUInt64Value()); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_UINT32: + reflection->SetUInt32(new_entry, key_des, map_key.GetUInt32Value()); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_BOOL: + reflection->SetBool(new_entry, key_des, map_key.GetBoolValue()); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_DOUBLE: + case google::protobuf::FieldDescriptor::CPPTYPE_FLOAT: + case google::protobuf::FieldDescriptor::CPPTYPE_ENUM: + case google::protobuf::FieldDescriptor::CPPTYPE_MESSAGE: + GOOGLE_LOG(FATAL) << "Can't get here."; + break; + } + const MapValueRef& map_val = it->second; + switch (val_des->cpp_type()) { + case google::protobuf::FieldDescriptor::CPPTYPE_STRING: + reflection->SetString(new_entry, val_des, map_val.GetStringValue()); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_INT64: + reflection->SetInt64(new_entry, val_des, map_val.GetInt64Value()); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_INT32: + reflection->SetInt32(new_entry, val_des, map_val.GetInt32Value()); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_UINT64: + reflection->SetUInt64(new_entry, val_des, map_val.GetUInt64Value()); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_UINT32: + reflection->SetUInt32(new_entry, val_des, map_val.GetUInt32Value()); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_BOOL: + reflection->SetBool(new_entry, val_des, map_val.GetBoolValue()); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_DOUBLE: + reflection->SetDouble(new_entry, val_des, map_val.GetDoubleValue()); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_FLOAT: + reflection->SetFloat(new_entry, val_des, map_val.GetFloatValue()); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_ENUM: + reflection->SetEnumValue(new_entry, val_des, map_val.GetEnumValue()); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_MESSAGE: { + const Message& message = map_val.GetMessageValue(); + reflection->MutableMessage(new_entry, val_des)->CopyFrom(message); + break; + } + } + } +} + +void DynamicMapField::SyncMapWithRepeatedFieldNoLock() const { + Map<MapKey, MapValueRef>* map = &const_cast<DynamicMapField*>(this)->map_; + const Reflection* reflection = default_entry_->GetReflection(); + const FieldDescriptor* key_des = + default_entry_->GetDescriptor()->FindFieldByName("key"); + const FieldDescriptor* val_des = + default_entry_->GetDescriptor()->FindFieldByName("value"); + // DynamicMapField owns map values. Need to delete them before clearing + // the map. + for (Map<MapKey, MapValueRef>::iterator iter = map->begin(); + iter != map->end(); ++iter) { + iter->second.DeleteData(); + } + map->clear(); + for (RepeatedPtrField<Message>::iterator it = + MapFieldBase::repeated_field_->begin(); + it != MapFieldBase::repeated_field_->end(); ++it) { + MapKey map_key; + switch (key_des->cpp_type()) { + case google::protobuf::FieldDescriptor::CPPTYPE_STRING: + map_key.SetStringValue(reflection->GetString(*it, key_des)); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_INT64: + map_key.SetInt64Value(reflection->GetInt64(*it, key_des)); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_INT32: + map_key.SetInt32Value(reflection->GetInt32(*it, key_des)); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_UINT64: + map_key.SetUInt64Value(reflection->GetUInt64(*it, key_des)); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_UINT32: + map_key.SetUInt32Value(reflection->GetUInt32(*it, key_des)); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_BOOL: + map_key.SetBoolValue(reflection->GetBool(*it, key_des)); + break; + case google::protobuf::FieldDescriptor::CPPTYPE_DOUBLE: + case google::protobuf::FieldDescriptor::CPPTYPE_FLOAT: + case google::protobuf::FieldDescriptor::CPPTYPE_ENUM: + case google::protobuf::FieldDescriptor::CPPTYPE_MESSAGE: + GOOGLE_LOG(FATAL) << "Can't get here."; + break; + } + + // Remove existing map value with same key. + Map<MapKey, MapValueRef>::iterator iter = map->find(map_key); + if (iter != map->end()) { + iter->second.DeleteData(); + } + + MapValueRef& map_val = (*map)[map_key]; + map_val.SetType(val_des->cpp_type()); + switch (val_des->cpp_type()) { +#define HANDLE_TYPE(CPPTYPE, TYPE, METHOD) \ + case google::protobuf::FieldDescriptor::CPPTYPE_##CPPTYPE: { \ + TYPE * value = new TYPE; \ + *value = reflection->Get##METHOD(*it, val_des); \ + map_val.SetValue(value); \ + break; \ + } + HANDLE_TYPE(INT32, int32, Int32); + HANDLE_TYPE(INT64, int64, Int64); + HANDLE_TYPE(UINT32, uint32, UInt32); + HANDLE_TYPE(UINT64, uint64, UInt64); + HANDLE_TYPE(DOUBLE, double, Double); + HANDLE_TYPE(FLOAT, float, Float); + HANDLE_TYPE(BOOL, bool, Bool); + HANDLE_TYPE(STRING, string, String); + HANDLE_TYPE(ENUM, int32, EnumValue); +#undef HANDLE_TYPE + case google::protobuf::FieldDescriptor::CPPTYPE_MESSAGE: { + const Message& message = reflection->GetMessage(*it, val_des); + Message* value = message.New(); + value->CopyFrom(message); + map_val.SetValue(value); + break; + } + } + } +} + +size_t DynamicMapField::SpaceUsedExcludingSelfNoLock() const { + size_t size = 0; + if (MapFieldBase::repeated_field_ != NULL) { + size += MapFieldBase::repeated_field_->SpaceUsedExcludingSelfLong(); + } + size += sizeof(map_); + size_t map_size = map_.size(); + if (map_size) { + Map<MapKey, MapValueRef>::const_iterator it = map_.begin(); + size += sizeof(it->first) * map_size; + size += sizeof(it->second) * map_size; + // If key is string, add the allocated space. + if (it->first.type() == google::protobuf::FieldDescriptor::CPPTYPE_STRING) { + size += sizeof(string) * map_size; + } + // Add the allocated space in MapValueRef. + switch (it->second.type()) { +#define HANDLE_TYPE(CPPTYPE, TYPE) \ + case google::protobuf::FieldDescriptor::CPPTYPE_##CPPTYPE: { \ + size += sizeof(TYPE) * map_size; \ + break; \ + } + HANDLE_TYPE(INT32, int32); + HANDLE_TYPE(INT64, int64); + HANDLE_TYPE(UINT32, uint32); + HANDLE_TYPE(UINT64, uint64); + HANDLE_TYPE(DOUBLE, double); + HANDLE_TYPE(FLOAT, float); + HANDLE_TYPE(BOOL, bool); + HANDLE_TYPE(STRING, string); + HANDLE_TYPE(ENUM, int32); +#undef HANDLE_TYPE + case google::protobuf::FieldDescriptor::CPPTYPE_MESSAGE: { + while (it != map_.end()) { + const Message& message = it->second.GetMessageValue(); + size += message.GetReflection()->SpaceUsedLong(message); + ++it; + } + break; + } + } + } + return size; +} + +} // namespace internal +} // namespace protobuf +} // namespace google |