Media CAS Proxy SDK release: 16.5.0
This commit is contained in:
Buildbot
270
ubuntu/google/protobuf/generated_message_util.h
Normal file
270
ubuntu/google/protobuf/generated_message_util.h
Normal file
@@ -0,0 +1,270 @@
|
||||
// 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.
|
||||
//
|
||||
// This file contains miscellaneous helper code used by generated code --
|
||||
// including lite types -- but which should not be used directly by users.
|
||||
|
||||
#ifndef GOOGLE_PROTOBUF_GENERATED_MESSAGE_UTIL_H__
|
||||
#define GOOGLE_PROTOBUF_GENERATED_MESSAGE_UTIL_H__
|
||||
|
||||
#include <assert.h>
|
||||
|
||||
#include <atomic>
|
||||
#include <climits>
|
||||
#include <string>
|
||||
#include <vector>
|
||||
|
||||
#include <google/protobuf/stubs/common.h>
|
||||
#include <google/protobuf/any.h>
|
||||
#include <google/protobuf/has_bits.h>
|
||||
#include <google/protobuf/implicit_weak_message.h>
|
||||
#include <google/protobuf/message_lite.h>
|
||||
#include <google/protobuf/stubs/once.h> // Add direct dep on port for pb.cc
|
||||
#include <google/protobuf/port.h>
|
||||
#include <google/protobuf/repeated_field.h>
|
||||
#include <google/protobuf/wire_format_lite.h>
|
||||
#include <google/protobuf/stubs/strutil.h>
|
||||
#include <google/protobuf/stubs/casts.h>
|
||||
|
||||
#include <google/protobuf/port_def.inc>
|
||||
|
||||
#ifdef SWIG
|
||||
#error "You cannot SWIG proto headers"
|
||||
#endif
|
||||
|
||||
namespace google {
|
||||
namespace protobuf {
|
||||
|
||||
class Arena;
|
||||
class Message;
|
||||
|
||||
namespace io {
|
||||
class CodedInputStream;
|
||||
}
|
||||
|
||||
namespace internal {
|
||||
|
||||
template <typename To, typename From>
|
||||
inline To DownCast(From* f) {
|
||||
return PROTOBUF_NAMESPACE_ID::internal::down_cast<To>(f);
|
||||
}
|
||||
template <typename To, typename From>
|
||||
inline To DownCast(From& f) {
|
||||
return PROTOBUF_NAMESPACE_ID::internal::down_cast<To>(f);
|
||||
}
|
||||
|
||||
|
||||
// This fastpath inlines a single branch instead of having to make the
|
||||
// InitProtobufDefaults function call.
|
||||
// It also generates less inlined code than a function-scope static initializer.
|
||||
PROTOBUF_EXPORT extern std::atomic<bool> init_protobuf_defaults_state;
|
||||
PROTOBUF_EXPORT void InitProtobufDefaultsSlow();
|
||||
PROTOBUF_EXPORT inline void InitProtobufDefaults() {
|
||||
if (PROTOBUF_PREDICT_FALSE(
|
||||
!init_protobuf_defaults_state.load(std::memory_order_acquire))) {
|
||||
InitProtobufDefaultsSlow();
|
||||
}
|
||||
}
|
||||
|
||||
// This used by proto1
|
||||
PROTOBUF_EXPORT inline const std::string& GetEmptyString() {
|
||||
InitProtobufDefaults();
|
||||
return GetEmptyStringAlreadyInited();
|
||||
}
|
||||
|
||||
|
||||
// True if IsInitialized() is true for all elements of t. Type is expected
|
||||
// to be a RepeatedPtrField<some message type>. It's useful to have this
|
||||
// helper here to keep the protobuf compiler from ever having to emit loops in
|
||||
// IsInitialized() methods. We want the C++ compiler to inline this or not
|
||||
// as it sees fit.
|
||||
template <typename Msg>
|
||||
bool AllAreInitialized(const RepeatedPtrField<Msg>& t) {
|
||||
for (int i = t.size(); --i >= 0;) {
|
||||
if (!t.Get(i).IsInitialized()) return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
// "Weak" variant of AllAreInitialized, used to implement implicit weak fields.
|
||||
// This version operates on MessageLite to avoid introducing a dependency on the
|
||||
// concrete message type.
|
||||
template <class T>
|
||||
bool AllAreInitializedWeak(const RepeatedPtrField<T>& t) {
|
||||
for (int i = t.size(); --i >= 0;) {
|
||||
if (!reinterpret_cast<const RepeatedPtrFieldBase&>(t)
|
||||
.Get<ImplicitWeakTypeHandler<T> >(i)
|
||||
.IsInitialized()) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
inline bool IsPresent(const void* base, uint32 hasbit) {
|
||||
const uint32* has_bits_array = static_cast<const uint32*>(base);
|
||||
return (has_bits_array[hasbit / 32] & (1u << (hasbit & 31))) != 0;
|
||||
}
|
||||
|
||||
inline bool IsOneofPresent(const void* base, uint32 offset, uint32 tag) {
|
||||
const uint32* oneof =
|
||||
reinterpret_cast<const uint32*>(static_cast<const uint8*>(base) + offset);
|
||||
return *oneof == tag >> 3;
|
||||
}
|
||||
|
||||
typedef void (*SpecialSerializer)(const uint8* base, uint32 offset, uint32 tag,
|
||||
uint32 has_offset,
|
||||
io::CodedOutputStream* output);
|
||||
|
||||
PROTOBUF_EXPORT void ExtensionSerializer(const uint8* base, uint32 offset,
|
||||
uint32 tag, uint32 has_offset,
|
||||
io::CodedOutputStream* output);
|
||||
PROTOBUF_EXPORT void UnknownFieldSerializerLite(const uint8* base,
|
||||
uint32 offset, uint32 tag,
|
||||
uint32 has_offset,
|
||||
io::CodedOutputStream* output);
|
||||
|
||||
PROTOBUF_EXPORT MessageLite* DuplicateIfNonNullInternal(MessageLite* message);
|
||||
PROTOBUF_EXPORT MessageLite* GetOwnedMessageInternal(Arena* message_arena,
|
||||
MessageLite* submessage,
|
||||
Arena* submessage_arena);
|
||||
PROTOBUF_EXPORT void GenericSwap(MessageLite* m1, MessageLite* m2);
|
||||
// We specialize GenericSwap for non-lite messages to benefit from reflection.
|
||||
PROTOBUF_EXPORT void GenericSwap(Message* m1, Message* m2);
|
||||
|
||||
template <typename T>
|
||||
T* DuplicateIfNonNull(T* message) {
|
||||
// The casts must be reinterpret_cast<> because T might be a forward-declared
|
||||
// type that the compiler doesn't know is related to MessageLite.
|
||||
return reinterpret_cast<T*>(
|
||||
DuplicateIfNonNullInternal(reinterpret_cast<MessageLite*>(message)));
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
T* GetOwnedMessage(Arena* message_arena, T* submessage,
|
||||
Arena* submessage_arena) {
|
||||
// The casts must be reinterpret_cast<> because T might be a forward-declared
|
||||
// type that the compiler doesn't know is related to MessageLite.
|
||||
return reinterpret_cast<T*>(GetOwnedMessageInternal(
|
||||
message_arena, reinterpret_cast<MessageLite*>(submessage),
|
||||
submessage_arena));
|
||||
}
|
||||
|
||||
// Hide atomic from the public header and allow easy change to regular int
|
||||
// on platforms where the atomic might have a perf impact.
|
||||
class PROTOBUF_EXPORT CachedSize {
|
||||
public:
|
||||
int Get() const { return size_.load(std::memory_order_relaxed); }
|
||||
void Set(int size) { size_.store(size, std::memory_order_relaxed); }
|
||||
|
||||
private:
|
||||
std::atomic<int> size_{0};
|
||||
};
|
||||
|
||||
// SCCInfo represents information of a strongly connected component of
|
||||
// mutual dependent messages.
|
||||
struct PROTOBUF_EXPORT SCCInfoBase {
|
||||
// We use 0 for the Initialized state, because test eax,eax, jnz is smaller
|
||||
// and is subject to macro fusion.
|
||||
enum {
|
||||
kInitialized = 0, // final state
|
||||
kRunning = 1,
|
||||
kUninitialized = -1, // initial state
|
||||
};
|
||||
#if defined(_MSC_VER) && !defined(__clang__)
|
||||
// MSVC doesn't make std::atomic constant initialized. This union trick
|
||||
// makes it so.
|
||||
union {
|
||||
int visit_status_to_make_linker_init;
|
||||
std::atomic<int> visit_status;
|
||||
};
|
||||
#else
|
||||
std::atomic<int> visit_status;
|
||||
#endif
|
||||
int num_deps;
|
||||
int num_implicit_weak_deps;
|
||||
void (*init_func)();
|
||||
// This is followed by an array of num_deps
|
||||
// const SCCInfoBase* deps[];
|
||||
};
|
||||
|
||||
// Zero-length arrays are a language extension available in GCC and Clang but
|
||||
// not MSVC.
|
||||
#ifdef __GNUC__
|
||||
#define PROTOBUF_ARRAY_SIZE(n) (n)
|
||||
#else
|
||||
#define PROTOBUF_ARRAY_SIZE(n) ((n) ? (n) : 1)
|
||||
#endif
|
||||
|
||||
template <int N>
|
||||
struct SCCInfo {
|
||||
SCCInfoBase base;
|
||||
// Semantically this is const SCCInfo<T>* which is is a templated type.
|
||||
// The obvious inheriting from SCCInfoBase mucks with struct initialization.
|
||||
// Attempts showed the compiler was generating dynamic initialization code.
|
||||
// This deps array consists of base.num_deps pointers to SCCInfoBase followed
|
||||
// by base.num_implicit_weak_deps pointers to SCCInfoBase*. We need the extra
|
||||
// pointer indirection for implicit weak fields. We cannot use a union type
|
||||
// here, since that would prevent the array from being linker-initialized.
|
||||
void* deps[PROTOBUF_ARRAY_SIZE(N)];
|
||||
};
|
||||
|
||||
#undef PROTOBUF_ARRAY_SIZE
|
||||
|
||||
PROTOBUF_EXPORT void InitSCCImpl(SCCInfoBase* scc);
|
||||
|
||||
inline void InitSCC(SCCInfoBase* scc) {
|
||||
auto status = scc->visit_status.load(std::memory_order_acquire);
|
||||
if (PROTOBUF_PREDICT_FALSE(status != SCCInfoBase::kInitialized))
|
||||
InitSCCImpl(scc);
|
||||
}
|
||||
|
||||
PROTOBUF_EXPORT void DestroyMessage(const void* message);
|
||||
PROTOBUF_EXPORT void DestroyString(const void* s);
|
||||
// Destroy (not delete) the message
|
||||
inline void OnShutdownDestroyMessage(const void* ptr) {
|
||||
OnShutdownRun(DestroyMessage, ptr);
|
||||
}
|
||||
// Destroy the string (call std::string destructor)
|
||||
inline void OnShutdownDestroyString(const std::string* ptr) {
|
||||
OnShutdownRun(DestroyString, ptr);
|
||||
}
|
||||
|
||||
} // namespace internal
|
||||
} // namespace protobuf
|
||||
} // namespace google
|
||||
|
||||
#include <google/protobuf/port_undef.inc>
|
||||
|
||||
#endif // GOOGLE_PROTOBUF_GENERATED_MESSAGE_UTIL_H__
|
||||
Reference in New Issue
Block a user