Line data    Source code

       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_INPUT_STREAM_H_
      18             : #define SFNTLY_CPP_SRC_SFNTLY_PORT_INPUT_STREAM_H_
      19             : 
      20             : #include "sfntly/port/type.h"
      21             : 
      22             : namespace sfntly {
      23             : 
      24             : // C++ equivalent to Java's OutputStream class
      25           0 : class InputStream {
      26             :  public:
      27             :   // Make gcc -Wnon-virtual-dtor happy.
      28           0 :   virtual ~InputStream() {}
      29             : 
      30             :   virtual int32_t Available() = 0;
      31             :   virtual void Close() = 0;
      32             :   virtual void Mark(int32_t readlimit) = 0;
      33             :   virtual bool MarkSupported() = 0;
      34             :   virtual int32_t Read() = 0;
      35             :   virtual int32_t Read(ByteVector* b) = 0;
      36             :   virtual int32_t Read(ByteVector* b, int32_t offset, int32_t length) = 0;
      37             :   virtual void Reset() = 0;
      38             :   virtual int64_t Skip(int64_t n) = 0;
      39             : };
      40             : 
      41           0 : class PushbackInputStream : public InputStream {
      42             :  public:
      43             :   virtual void Unread(ByteVector* b) = 0;
      44             :   virtual void Unread(ByteVector* b, int32_t offset, int32_t length) = 0;
      45             : };
      46             : 
      47             : }  // namespace sfntly
      48             : 
      49             : #endif  // SFNTLY_CPP_SRC_SFNTLY_PORT_INPUT_STREAM_H_