dmcallis
65a0592776
Source code drop for the Actionscript virtual machine in the Adobe Flash Player for December 2013
51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
/* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 4 -*- */
|
|
/* vi: set ts=4 sw=4 expandtab: (add to ~/.vimrc: set modeline modelines=5) */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef __avmshell_FileInputStream__
|
|
#define __avmshell_FileInputStream__
|
|
|
|
|
|
namespace avmshell
|
|
{
|
|
class File;
|
|
|
|
/**
|
|
* InputStream is an abstract base class for input streams.
|
|
* Concrete subclasses must implement the available and read
|
|
* methods to do appropriate read operations.
|
|
*/
|
|
class InputStream
|
|
{
|
|
public:
|
|
virtual ~InputStream() {}
|
|
virtual int64_t available() = 0;
|
|
virtual size_t read(void *buffer, size_t count) = 0;
|
|
};
|
|
|
|
/**
|
|
* FileInputStream is a concrete subclass of InputStream
|
|
* that implements file input.
|
|
*/
|
|
class FileInputStream : public InputStream
|
|
{
|
|
public:
|
|
FileInputStream(const char *filename);
|
|
|
|
bool valid() const;
|
|
~FileInputStream();
|
|
int64_t available();
|
|
int64_t length() const { return len; }
|
|
void seek(int64_t offset);
|
|
size_t read(void *buffer, size_t count);
|
|
|
|
private:
|
|
File *file;
|
|
int64_t len;
|
|
};
|
|
}
|
|
|
|
#endif /* __avmshell_FileInputStream__ */
|