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// Copyright 2015 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.
#include <stddef.h>
#include <stdint.h>
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/strings/string16.h"
#include "chromeos/binder/buffer_reader.h"
#include "chromeos/chromeos_export.h"
namespace binder {
class CommandBroker;
class Object;
class TransactionData;
// Reads contents of a TransactionData.
// Use this class to get parameters of incoming transactions, or to get values
// from transaction replies.
class CHROMEOS_EXPORT TransactionDataReader {
explicit TransactionDataReader(const TransactionData& data);
// Returns true when there is some data to read.
bool HasMoreData() const;
// Reads the specified number of bytes with appropriate padding.
// Returns true on success.
bool ReadData(void* buf, size_t n);
// Reads an int32_t value. Returns true on success.
bool ReadInt32(int32_t* value);
// Reads an uint32_t value. Returns true on success.
bool ReadUint32(uint32_t* value);
// Reads an int64_t value. Returns true on success.
bool ReadInt64(int64_t* value);
// Reads an uint64_t value. Returns true on success.
bool ReadUint64(uint64_t* value);
// Reads a float value. Returns true on success.
bool ReadFloat(float* value);
// Reads a double value. Returns true on success.
bool ReadDouble(double* value);
// Reads a null-terminated C string.
bool ReadCString(const char** value);
// Reads a string.
bool ReadString(std::string* value);
// Reads a UTF-16 string.
bool ReadString16(base::string16* value);
// Reads an object. Returns null on failure.
// |command_broker| will be used for object ref-count operations.
scoped_refptr<Object> ReadObject(CommandBroker* command_broker);
// Reads a file descriptor.
// The file descriptor is owned by the TransactionData, and it will be closed
// when the TransactionData gets destroyed. You should duplicate the FD (e.g.
// by calling dup()) to keep owning it.
bool ReadFileDescriptor(int* fd);
BufferReader reader_;
} // namespace binder