1 /*
2  * Copyright 2011 Google Inc. All Rights Reserved.
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 SFNTLY_CPP_SRC_SFNTLY_PORT_FILE_INPUT_STREAM_H_
18 #define SFNTLY_CPP_SRC_SFNTLY_PORT_FILE_INPUT_STREAM_H_
19 
20 #include <stdio.h>
21 
22 #include "sfntly/port/input_stream.h"
23 
24 namespace sfntly {
25 
26 class FileInputStream : public PushbackInputStream {
27  public:
28   FileInputStream();
29   virtual ~FileInputStream();
30 
31   // InputStream methods
32   virtual int32_t Available();
33   virtual void Close();
34   virtual void Mark(int32_t readlimit);
35   virtual bool MarkSupported();
36   virtual int32_t Read();
37   virtual int32_t Read(ByteVector* b);
38   virtual int32_t Read(ByteVector* b, int32_t offset, int32_t length);
39   virtual void Reset();
40   virtual int64_t Skip(int64_t n);
41 
42   // PushbackInputStream methods
43   virtual void Unread(ByteVector* b);
44   virtual void Unread(ByteVector* b, int32_t offset, int32_t length);
45 
46   // Own methods
47   virtual bool Open(const char* file_path);
48 
49  private:
50   FILE* file_;
51   size_t position_;
52   size_t length_;
53 };
54 
55 }  // namespace sfntly
56 
57 #endif  // SFNTLY_CPP_SRC_SFNTLY_PORT_FILE_INPUT_STREAM_H_
58