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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is [Open Source Virtual Machine.].
*
* The Initial Developer of the Original Code is
* Adobe System Incorporated.
* Portions created by the Initial Developer are Copyright (C) 2004-2006
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Adobe AS3 Team
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
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* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef BYTEARRAYGLUE_INCLUDED
#define BYTEARRAYGLUE_INCLUDED
namespace avmshell
{
class ByteArray : public GlobalMemoryProvider
{
public:
ByteArray();
ByteArray(const ByteArray &lhs);
~ByteArray();
U8 operator [] (uint32_t index) const;
U8& operator [] (uint32_t index);
void Push(U8 value);
void Push(const U8 *buffer, uint32_t count);
uint32_t GetLength() const { return m_length; }
void SetLength(uint32_t newLength);
bool Grow(uint32_t newCapacity);
U8 *GetBuffer() const { return m_array; }
// from GlobalMemoryProvider
/*virtual*/ bool addSubscriber(GlobalMemorySubscriber* subscriber);
/*virtual*/ bool removeSubscriber(GlobalMemorySubscriber* subscriber);
protected:
// singly linked list of all subscribers to this ByteArray...
// in practice, there isn't much liklihood of too many
// subscribers at a time and notifications should be rare
// hence the slower, simpler, smaller structures and algorithms
// links are removed explicitly via GlobalMemoryUnsubscribe
// or implicitly when the backing store changes
struct SubscriberLink : public MMgc::GCObject
{
// weak reference to the subscriber DomainEnv so
// multiple DomainEnvs subscribing to the same
// ByteArray don't result in a DomainEnv not being
// collectable because a ByteArray refers to it and
// is referenced by another live DomainEnv
MMgc::GCWeakRef* weakSubscriber;
// next link
SubscriberLink* next;
};
SubscriberLink* m_subscriberRoot;
void NotifySubscribers();
void ThrowMemoryError();
uint32_t m_capacity;
uint32_t m_length;
U8 *m_array;
enum { kGrowthIncr = 4096 };
};
class ByteArrayFile : public ByteArray, public DataInput, public DataOutput
{
public:
ByteArrayFile(Toplevel *toplevel);
virtual ~ByteArrayFile()
{
m_filePointer = 0;
}
uint32_t GetFilePointer() { return m_filePointer; }
void Seek(uint32_t filePointer) { m_filePointer = filePointer; }
void SetLength(uint32_t newLength);
uint32_t Available();
void Read(void *buffer, uint32_t count);
void Write(const void *buffer, uint32_t count);
private:
uint32_t m_filePointer;
};
class ByteArrayObject : public ScriptObject
{
public:
ByteArrayObject(VTable *ivtable, ScriptObject *delegate);
void fill(const void *b, uint32_t len);
void checkNull(void *instance, const char *name);
uint32_t getLength() { return m_byteArray.GetLength(); }
void setLength(uint32_t newLength);
virtual bool hasAtomProperty(Atom name) const;
virtual void setAtomProperty(Atom name, Atom value);
virtual Atom getAtomProperty(Atom name) const;
virtual Atom getUintProperty(uint32_t i) const;
virtual void setUintProperty(uint32_t i, Atom value);
void readBytes(ByteArrayObject *bytes, uint32_t offset, uint32_t length);
void writeBytes(ByteArrayObject *bytes, uint32_t offset, uint32_t length);
String* _toString();
// renamed to avoid preprocessor conflict with mozilla's zlib, which #define's compress and uncompress
void zlib_compress();
void zlib_uncompress();
void writeBoolean(bool value);
void writeByte(int value);
void writeShort(int value);
void writeInt(int value);
void writeUnsignedInt(uint32_t value);
void writeFloat(double value);
void writeDouble(double value);
void writeUTF(String *value);
void writeUTFBytes(String *value);
bool readBoolean();
int readByte();
int readUnsignedByte();
int readShort();
int readUnsignedShort();
int readInt();
uint32_t readUnsignedInt();
double readFloat();
double readDouble();
String* readUTF();
String* readUTFBytes(uint32_t length);
int get_bytesAvailable();
int get_position();
void set_position(int offset);
inline int available() { return get_bytesAvailable(); }
inline int getFilePointer() { return get_position(); }
inline void seek(int offset) { set_position(offset); }
uint32_t get_length();
void set_length(uint32_t value);
Stringp get_endian();
void set_endian(Stringp type);
ByteArray& GetByteArray() { return m_byteArray; }
void writeFile(Stringp filename);
/*virtual*/ GlobalMemoryProvider* getGlobalMemoryProvider() { return &m_byteArray; }
private:
MMgc::Cleaner c;
ByteArrayFile m_byteArray;
DECLARE_SLOTS_ByteArrayObject;
};
//
// ByteArrayClass
//
class ByteArrayClass : public ClassClosure
{
public:
ByteArrayClass(VTable *vtable);
ScriptObject *createInstance(VTable *ivtable, ScriptObject *delegate);
ByteArrayObject *readFile(Stringp filename);
DECLARE_SLOTS_ByteArrayClass;
};
}
#endif /* BYTEARRAYGLUE_INCLUDED */