MtpStringBuffer.h revision 7850ef999740f214a1990a9c090d3f3865d435aa 
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
22namespace android {
23
24class MtpDataPacket;
25
26// Represents a utf8 string, with a maximum of 255 characters
27class MtpStringBuffer {
28
29private:
30    // maximum 3 bytes/character, with 1 extra for zero termination
31    uint8_t         mBuffer[255 * 3 + 1];
32    int             mCharCount;
33    int             mByteCount;
34
35public:
36                    MtpStringBuffer();
37                    MtpStringBuffer(const char* src);
38                    MtpStringBuffer(const MtpStringBuffer& src);
39    virtual         ~MtpStringBuffer();
40
41    void            set(const char* src);
42
43    void            readFromPacket(MtpDataPacket* packet);
44    void            writeToPacket(MtpDataPacket* packet) const;
45
46    inline int      getCharCount() const { return mCharCount; }
47    inline int      getByteCount() const { return mByteCount; }
48
49	inline operator const char*() const { return (const char *)mBuffer; }
50};
51
52}; // namespace android
53
54#endif // _MTP_STRING_BUFFER_H
55