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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef IPC_IPC_MESSAGE_PROTOBUF_UTILS_H_
#define IPC_IPC_MESSAGE_PROTOBUF_UTILS_H_
#include "build/build_config.h"
#if defined(OS_NACL_NONSFI)
static_assert(false,
"ipc_message_protobuf_utils is not able to work with "
"nacl_nonsfi configuration.");
#endif
#include "base/pickle.h"
#include "ipc/ipc_param_traits.h"
#include "ipc/ipc_message_utils.h"
#include "third_party/protobuf/src/google/protobuf/repeated_field.h"
namespace IPC {
template <class RepeatedFieldLike, class StorageType>
struct RepeatedFieldParamTraits {
typedef RepeatedFieldLike param_type;
static void Write(base::Pickle* m, const param_type& p) {
WriteParam(m, p.size());
for (int i = 0; i < p.size(); i++)
WriteParam(m, p.Get(i));
}
static bool Read(const base::Pickle* m,
base::PickleIterator* iter,
param_type* r) {
int size;
// ReadLength() checks for < 0 itself.
if (!iter->ReadLength(&size))
return false;
// Avoid integer overflow / assertion failure in Reserve() function.
if (INT_MAX / sizeof(StorageType) <= static_cast<size_t>(size))
return false;
r->Reserve(size);
for (int i = 0; i < size; i++) {
if (!ReadParam(m, iter, r->Add()))
return false;
}
return true;
}
static void Log(const param_type& p, std::string* l) {
for (int i = 0; i < p.size(); ++i) {
if (i != 0)
l->append(" ");
LogParam(p.Get(i), l);
}
}
};
template <class P>
struct ParamTraits<google::protobuf::RepeatedField<P>> :
RepeatedFieldParamTraits<google::protobuf::RepeatedField<P>, P> {};
template <class P>
struct ParamTraits<google::protobuf::RepeatedPtrField<P>> :
RepeatedFieldParamTraits<google::protobuf::RepeatedPtrField<P>, void*> {};
} // namespace IPC
#endif // IPC_IPC_MESSAGE_PROTOBUF_UTILS_H_
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