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/*
* Copyright (C) 2007-2023 Xagasoft, All rights reserved.
*
* This file is part of the libbu++ library and is released under the
* terms of the license contained in the file LICENSE.
*/
#ifndef BU_BLOB_H
#define BU_BLOB_H
#include "bu/config.h"
#include "bu/archivebase.h"
namespace Bu
{
/**
* Blob contans a sequence of binary values. This is basically the
* replacement for the old libbu++ Bu::String, std::string classes, or the
* tradition C char * string. The Blob is static and immutable, and a good
* choice when dealing with any sequence of binary data that you don't
* need to interpret further.
*
* You may note that Blob doesn't have any append, prepend, etc. methods.
* This is because Blobs are designed to be more or less immutable. If you
* need that functionality (which is quite likely), check out
* Bu::BlobBuilder which offers a flexible, fast interface to build Blobs
* dynamically, piece at a time.
*
* If you're dealing with data that contains language, such as human text,
* then use the Bu::Text class instead.
*/
class Blob
{
friend ArchiveBase &operator<<( ArchiveBase &ar, const Blob &s );
friend ArchiveBase &operator>>( ArchiveBase &ar, Blob &s );
public:
class iterator;
class const_iterator;
public:
Blob();
Blob( const Blob &rSrc );
Blob( const class BlobBuilder &rSrc );
Blob( const char *pSrc );
Blob( const void *pSrc, int32_t iSize );
Blob( int32_t iSize );
Blob( const const_iterator &iStart );
Blob( const const_iterator &iStart, const const_iterator &iEnd );
// Obviously temporary
Blob( const Bu::String &rSrc );
virtual ~Blob();
void setSize( int32_t iSize );
int32_t getSize() const;
void setData( const char *pSrc, int32_t iSize );
char *getData() const;
char *c_str() const;
char &operator[]( int32_t iIndex );
char operator[]( int32_t iIndex ) const;
bool isEmpty() const;
bool isNull() const;
bool isNullOrEmpty() const;
Blob &operator=( const Blob &rRhs );
Blob &operator=( const char *pRhs );
bool operator==( const Blob &rRhs ) const;
bool operator==( const char *rRhs ) const;
bool operator!=( const Blob &rRhs ) const;
bool operator!=( const char *rRhs ) const;
bool operator<( const Blob &rRhs ) const;
bool operator<( const char *rRhs ) const;
bool operator<=( const Blob &rRhs ) const;
bool operator<=( const char *rRhs ) const;
bool operator>( const Blob &rRhs ) const;
bool operator>( const char *rRhs ) const;
bool operator>=( const Blob &rRhs ) const;
bool operator>=( const char *rRhs ) const;
iterator begin();
const_iterator begin() const;
iterator end();
const_iterator end() const;
iterator rbegin();
const_iterator rbegin() const;
iterator rend();
const_iterator rend() const;
class iterator
{
friend class Blob;
friend class const_iterator;
private:
iterator( Blob *pBlob, bool bForward );
iterator( Blob *pBlob, int32_t iIndex, bool bForward );
public:
iterator();
iterator( const iterator &rSrc );
bool isValid() const;
operator bool() const;
char &operator *();
iterator &operator++( int32_t );
iterator &operator++();
iterator &operator--( int32_t );
iterator &operator--();
iterator &operator+=( int32_t iDelta );
iterator &operator-=( int32_t iDelta );
iterator operator+( int32_t iDelta ) const;
iterator operator-( int32_t iDelta ) const;
bool operator==( const iterator &rRhs );
bool operator==( const const_iterator &rRhs );
bool operator!=( const iterator &rRhs );
bool operator!=( const const_iterator &rRhs );
iterator &operator=( const iterator &rRhs );
private:
Blob *pBlob;
int32_t iIndex;
bool bForward;
};
class const_iterator
{
friend class Blob;
friend class iterator;
private:
const_iterator( const Blob *pBlob, bool bForward );
const_iterator( const Blob *pBlob, int32_t iIndex, bool bForward );
public:
const_iterator();
const_iterator( const const_iterator &rSrc );
const_iterator( const iterator &rSrc );
bool isValid() const;
operator bool() const;
char operator *() const;
const_iterator &operator++( int32_t );
const_iterator &operator++();
const_iterator &operator--( int32_t );
const_iterator &operator--();
const_iterator &operator+=( int32_t iDelta );
const_iterator &operator-=( int32_t iDelta );
const_iterator operator+( int32_t iDelta ) const;
const_iterator operator-( int32_t iDelta ) const;
bool operator==( const iterator &rRhs );
bool operator==( const const_iterator &rRhs );
bool operator!=( const iterator &rRhs );
bool operator!=( const const_iterator &rRhs );
const_iterator &operator=( const iterator &rRhs );
const_iterator &operator=( const const_iterator &rRhs );
private:
const Blob *pBlob;
int32_t iIndex;
bool bForward;
};
private:
char *pData;
int32_t iSize;
};
ArchiveBase &operator<<( ArchiveBase &ar, const Blob &s );
ArchiveBase &operator>>( ArchiveBase &ar, Blob &s );
template<typename T>
uint32_t __calcHashCode( const T &k );
template<typename T>
bool __cmpHashKeys( const T &a, const T &b );
template<> uint32_t __calcHashCode<Blob>( const Blob &k );
template<> bool __cmpHashKeys<Blob>(
const Blob &a, const Blob &b );
template<typename t> void __tracer_format( const t &v );
template<> void __tracer_format<Blob>( const Blob &v );
class Formatter;
Formatter &operator<<( Formatter &rOut, const Blob &b );
Formatter &operator>>( Formatter &fIn, Blob &b );
}
#endif
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