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