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 namespace android { 23 24 class MtpDataPacket; 25 26 // Represents a utf8 string, with a maximum of 255 characters 27 class MtpStringBuffer { 28 29 private: 30 // mBuffer contains string in UTF8 format 31 // maximum 3 bytes/character, with 1 extra for zero termination 32 uint8_t mBuffer[255 * 3 + 1]; 33 int mCharCount; 34 int mByteCount; 35 36 public: 37 MtpStringBuffer(); 38 MtpStringBuffer(const char* src); 39 MtpStringBuffer(const uint16_t* src); 40 MtpStringBuffer(const MtpStringBuffer& src); 41 virtual ~MtpStringBuffer(); 42 43 void set(const char* src); 44 void set(const uint16_t* src); 45 46 void readFromPacket(MtpDataPacket* packet); 47 void writeToPacket(MtpDataPacket* packet) const; 48 49 inline int getCharCount() const { return mCharCount; } 50 inline int getByteCount() const { return mByteCount; } 51 52 inline operator const char*() const { return (const char *)mBuffer; } 53 }; 54 55 }; // namespace android 56 57 #endif // _MTP_STRING_BUFFER_H 58
