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Media CAS Proxy SDK release: 16.5.0

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2021-07-12 21:46:29 +00:00
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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/message.h>
#include <iostream>
#include <stack>
#include <unordered_map>
#include <google/protobuf/stubs/casts.h>
#include <google/protobuf/stubs/logging.h>
#include <google/protobuf/stubs/common.h>
#include <google/protobuf/descriptor.pb.h>
#include <google/protobuf/parse_context.h>
#include <google/protobuf/reflection_internal.h>
#include <google/protobuf/io/coded_stream.h>
#include <google/protobuf/io/zero_copy_stream_impl.h>
#include <google/protobuf/descriptor.h>
#include <google/protobuf/generated_message_reflection.h>
#include <google/protobuf/generated_message_util.h>
#include <google/protobuf/map_field.h>
#include <google/protobuf/map_field_inl.h>
#include <google/protobuf/reflection_ops.h>
#include <google/protobuf/unknown_field_set.h>
#include <google/protobuf/wire_format.h>
#include <google/protobuf/wire_format_lite.h>
#include <google/protobuf/stubs/strutil.h>
#include <google/protobuf/stubs/map_util.h>
#include <google/protobuf/stubs/stl_util.h>
#include <google/protobuf/stubs/hash.h>
#include <google/protobuf/port_def.inc>
namespace google {
namespace protobuf {
namespace internal {
// TODO(gerbens) make this factorized better. This should not have to hop
// to reflection. Currently uses GeneratedMessageReflection and thus is
// defined in generated_message_reflection.cc
void RegisterFileLevelMetadata(const DescriptorTable* descriptor_table);
} // namespace internal
using internal::ReflectionOps;
using internal::WireFormat;
using internal::WireFormatLite;
void Message::MergeFrom(const Message& from) {
const Descriptor* descriptor = GetDescriptor();
GOOGLE_CHECK_EQ(from.GetDescriptor(), descriptor)
<< ": Tried to merge from a message with a different type. "
"to: "
<< descriptor->full_name()
<< ", "
"from: "
<< from.GetDescriptor()->full_name();
ReflectionOps::Merge(from, this);
}
void Message::CheckTypeAndMergeFrom(const MessageLite& other) {
MergeFrom(*down_cast<const Message*>(&other));
}
void Message::CopyFrom(const Message& from) {
const Descriptor* descriptor = GetDescriptor();
GOOGLE_CHECK_EQ(from.GetDescriptor(), descriptor)
<< ": Tried to copy from a message with a different type. "
"to: "
<< descriptor->full_name()
<< ", "
"from: "
<< from.GetDescriptor()->full_name();
ReflectionOps::Copy(from, this);
}
std::string Message::GetTypeName() const {
return GetDescriptor()->full_name();
}
void Message::Clear() { ReflectionOps::Clear(this); }
bool Message::IsInitialized() const {
return ReflectionOps::IsInitialized(*this);
}
void Message::FindInitializationErrors(std::vector<std::string>* errors) const {
return ReflectionOps::FindInitializationErrors(*this, "", errors);
}
std::string Message::InitializationErrorString() const {
std::vector<std::string> errors;
FindInitializationErrors(&errors);
return Join(errors, ", ");
}
void Message::CheckInitialized() const {
GOOGLE_CHECK(IsInitialized()) << "Message of type \"" << GetDescriptor()->full_name()
<< "\" is missing required fields: "
<< InitializationErrorString();
}
void Message::DiscardUnknownFields() {
return ReflectionOps::DiscardUnknownFields(this);
}
const char* Message::_InternalParse(const char* ptr,
internal::ParseContext* ctx) {
return WireFormat::_InternalParse(this, ptr, ctx);
}
uint8* Message::_InternalSerialize(uint8* target,
io::EpsCopyOutputStream* stream) const {
return WireFormat::_InternalSerialize(*this, target, stream);
}
size_t Message::ByteSizeLong() const {
size_t size = WireFormat::ByteSize(*this);
SetCachedSize(internal::ToCachedSize(size));
return size;
}
void Message::SetCachedSize(int /* size */) const {
GOOGLE_LOG(FATAL) << "Message class \"" << GetDescriptor()->full_name()
<< "\" implements neither SetCachedSize() nor ByteSize(). "
"Must implement one or the other.";
}
size_t Message::SpaceUsedLong() const {
return GetReflection()->SpaceUsedLong(*this);
}
uint64 Message::GetInvariantPerBuild(uint64 salt) {
return salt;
}
// =============================================================================
// MessageFactory
MessageFactory::~MessageFactory() {}
namespace {
#define HASH_MAP std::unordered_map
#define STR_HASH_FXN hash<::google::protobuf::StringPiece>
class GeneratedMessageFactory : public MessageFactory {
public:
static GeneratedMessageFactory* singleton();
void RegisterFile(const google::protobuf::internal::DescriptorTable* table);
void RegisterType(const Descriptor* descriptor, const Message* prototype);
// implements MessageFactory ---------------------------------------
const Message* GetPrototype(const Descriptor* type) override;
private:
// Only written at static init time, so does not require locking.
HASH_MAP<StringPiece, const google::protobuf::internal::DescriptorTable*,
STR_HASH_FXN>
file_map_;
internal::WrappedMutex mutex_;
// Initialized lazily, so requires locking.
std::unordered_map<const Descriptor*, const Message*> type_map_;
};
GeneratedMessageFactory* GeneratedMessageFactory::singleton() {
static auto instance =
internal::OnShutdownDelete(new GeneratedMessageFactory);
return instance;
}
void GeneratedMessageFactory::RegisterFile(
const google::protobuf::internal::DescriptorTable* table) {
if (!InsertIfNotPresent(&file_map_, table->filename, table)) {
GOOGLE_LOG(FATAL) << "File is already registered: " << table->filename;
}
}
void GeneratedMessageFactory::RegisterType(const Descriptor* descriptor,
const Message* prototype) {
GOOGLE_DCHECK_EQ(descriptor->file()->pool(), DescriptorPool::generated_pool())
<< "Tried to register a non-generated type with the generated "
"type registry.";
// This should only be called as a result of calling a file registration
// function during GetPrototype(), in which case we already have locked
// the mutex.
mutex_.AssertHeld();
if (!InsertIfNotPresent(&type_map_, descriptor, prototype)) {
GOOGLE_LOG(DFATAL) << "Type is already registered: " << descriptor->full_name();
}
}
const Message* GeneratedMessageFactory::GetPrototype(const Descriptor* type) {
{
ReaderMutexLock lock(&mutex_);
const Message* result = FindPtrOrNull(type_map_, type);
if (result != NULL) return result;
}
// If the type is not in the generated pool, then we can't possibly handle
// it.
if (type->file()->pool() != DescriptorPool::generated_pool()) return NULL;
// Apparently the file hasn't been registered yet. Let's do that now.
const internal::DescriptorTable* registration_data =
FindPtrOrNull(file_map_, type->file()->name().c_str());
if (registration_data == NULL) {
GOOGLE_LOG(DFATAL) << "File appears to be in generated pool but wasn't "
"registered: "
<< type->file()->name();
return NULL;
}
WriterMutexLock lock(&mutex_);
// Check if another thread preempted us.
const Message* result = FindPtrOrNull(type_map_, type);
if (result == NULL) {
// Nope. OK, register everything.
internal::RegisterFileLevelMetadata(registration_data);
// Should be here now.
result = FindPtrOrNull(type_map_, type);
}
if (result == NULL) {
GOOGLE_LOG(DFATAL) << "Type appears to be in generated pool but wasn't "
<< "registered: " << type->full_name();
}
return result;
}
} // namespace
MessageFactory* MessageFactory::generated_factory() {
return GeneratedMessageFactory::singleton();
}
void MessageFactory::InternalRegisterGeneratedFile(
const google::protobuf::internal::DescriptorTable* table) {
GeneratedMessageFactory::singleton()->RegisterFile(table);
}
void MessageFactory::InternalRegisterGeneratedMessage(
const Descriptor* descriptor, const Message* prototype) {
GeneratedMessageFactory::singleton()->RegisterType(descriptor, prototype);
}
namespace {
template <typename T>
T* GetSingleton() {
static T singleton;
return &singleton;
}
} // namespace
const internal::RepeatedFieldAccessor* Reflection::RepeatedFieldAccessor(
const FieldDescriptor* field) const {
GOOGLE_CHECK(field->is_repeated());
switch (field->cpp_type()) {
#define HANDLE_PRIMITIVE_TYPE(TYPE, type) \
case FieldDescriptor::CPPTYPE_##TYPE: \
return GetSingleton<internal::RepeatedFieldPrimitiveAccessor<type> >();
HANDLE_PRIMITIVE_TYPE(INT32, int32)
HANDLE_PRIMITIVE_TYPE(UINT32, uint32)
HANDLE_PRIMITIVE_TYPE(INT64, int64)
HANDLE_PRIMITIVE_TYPE(UINT64, uint64)
HANDLE_PRIMITIVE_TYPE(FLOAT, float)
HANDLE_PRIMITIVE_TYPE(DOUBLE, double)
HANDLE_PRIMITIVE_TYPE(BOOL, bool)
HANDLE_PRIMITIVE_TYPE(ENUM, int32)
#undef HANDLE_PRIMITIVE_TYPE
case FieldDescriptor::CPPTYPE_STRING:
switch (field->options().ctype()) {
default:
case FieldOptions::STRING:
return GetSingleton<internal::RepeatedPtrFieldStringAccessor>();
}
break;
case FieldDescriptor::CPPTYPE_MESSAGE:
if (field->is_map()) {
return GetSingleton<internal::MapFieldAccessor>();
} else {
return GetSingleton<internal::RepeatedPtrFieldMessageAccessor>();
}
}
GOOGLE_LOG(FATAL) << "Should not reach here.";
return NULL;
}
namespace internal {
template <>
#if defined(_MSC_VER) && (_MSC_VER >= 1800)
// Note: force noinline to workaround MSVC compiler bug with /Zc:inline, issue
// #240
PROTOBUF_NOINLINE
#endif
Message*
GenericTypeHandler<Message>::NewFromPrototype(const Message* prototype,
Arena* arena) {
return prototype->New(arena);
}
template <>
#if defined(_MSC_VER) && (_MSC_VER >= 1800)
// Note: force noinline to workaround MSVC compiler bug with /Zc:inline, issue
// #240
PROTOBUF_NOINLINE
#endif
Arena*
GenericTypeHandler<Message>::GetArena(Message* value) {
return value->GetArena();
}
template <>
#if defined(_MSC_VER) && (_MSC_VER >= 1800)
// Note: force noinline to workaround MSVC compiler bug with /Zc:inline, issue
// #240
PROTOBUF_NOINLINE
#endif
void*
GenericTypeHandler<Message>::GetMaybeArenaPointer(Message* value) {
return value->GetMaybeArenaPointer();
}
} // namespace internal
} // namespace protobuf
} // namespace google