1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef _MTP_STRING_BUFFER_H 18 #define _MTP_STRING_BUFFER_H 19 20 #include <stdint.h> 21 22 // Max Character number of a MTP String 23 #define MTP_STRING_MAX_CHARACTER_NUMBER 255 24 25 namespace android { 26 27 class MtpDataPacket; 28 29 // Represents a utf8 string, with a maximum of 255 characters 30 class MtpStringBuffer { 31 32 private: 33 // mBuffer contains string in UTF8 format 34 // maximum 3 bytes/character, with 1 extra for zero termination 35 uint8_t mBuffer[MTP_STRING_MAX_CHARACTER_NUMBER * 3 + 1]; 36 int mCharCount; 37 int mByteCount; 38 39 public: 40 MtpStringBuffer(); 41 MtpStringBuffer(const char* src); 42 MtpStringBuffer(const uint16_t* src); 43 MtpStringBuffer(const MtpStringBuffer& src); 44 virtual ~MtpStringBuffer(); 45 46 void set(const char* src); 47 void set(const uint16_t* src); 48 49 bool readFromPacket(MtpDataPacket* packet); 50 void writeToPacket(MtpDataPacket* packet) const; 51 52 inline int getCharCount() const { return mCharCount; } 53 inline int getByteCount() const { return mByteCount; } 54 55 inline operator const char*() const { return (const char *)mBuffer; } 56 }; 57 58 }; // namespace android 59 60 #endif // _MTP_STRING_BUFFER_H 61
