Gabriele Cosmo
87 lines
2.1 KiB
Plaintext
87 lines
2.1 KiB
Plaintext
// Copyright (C) 2010, Guy Barrand. All rights reserved.
|
|
// See the file tools.license for terms.
|
|
|
|
#ifndef tools_wroot_free_seg
|
|
#define tools_wroot_free_seg
|
|
|
|
#include "seek"
|
|
#include "wbuf"
|
|
|
|
#include <ostream>
|
|
|
|
namespace tools {
|
|
namespace wroot {
|
|
|
|
class free_seg {
|
|
static uint32 START_BIG_FILE() {return 2000000000;}
|
|
public:
|
|
free_seg(std::ostream& a_out,seek a_first,seek a_last)
|
|
:m_out(a_out),m_first(a_first),m_last(a_last){}
|
|
virtual ~free_seg(){}
|
|
public:
|
|
free_seg(const free_seg& a_from)
|
|
:m_out(a_from.m_out),m_first(a_from.m_first),m_last(a_from.m_last)
|
|
{}
|
|
free_seg& operator=(const free_seg& a_from){
|
|
m_first = a_from.m_first;
|
|
m_last = a_from.m_last;
|
|
return *this;
|
|
}
|
|
public:
|
|
seek first() const {return m_first;}
|
|
seek last() const {return m_last;}
|
|
|
|
unsigned int record_size() const {
|
|
//GB if(fLast>RIO_START_BIG_FILE) {
|
|
if((m_first>START_BIG_FILE())|| //GB
|
|
(m_last>START_BIG_FILE()) ){
|
|
return sizeof(short) + 2 * sizeof(seek);
|
|
} else {
|
|
return sizeof(short) + 2 * sizeof(seek32);
|
|
}
|
|
}
|
|
|
|
bool fill_buffer(wbuf& a_wb) {
|
|
short version = 1;
|
|
|
|
//GB if(fLast>START_BIG_FILE()) version += 1000;
|
|
if((m_first>START_BIG_FILE())||
|
|
(m_last>START_BIG_FILE())) version += 1000;
|
|
|
|
if(!a_wb.write(version)) return false;
|
|
|
|
if(version>1000) {
|
|
if(!a_wb.write(m_first)) return false;
|
|
if(!a_wb.write(m_last)) return false;
|
|
} else {
|
|
if(m_first>START_BIG_FILE()) { //GB
|
|
m_out << "tools::wroot::free_seg::fill_buffer :"
|
|
<< " attempt to write big Seek "
|
|
<< m_first << " on 32 bits."
|
|
<< std::endl;
|
|
return false;
|
|
}
|
|
if(!a_wb.write((seek32)m_first)) return false;
|
|
if(m_last>START_BIG_FILE()) { //GB
|
|
m_out << "tools::wroot::free_seg::fill_buffer :"
|
|
<< " attempt to write big seek "
|
|
<< m_last << " on 32 bits."
|
|
<< std::endl;
|
|
return false;
|
|
}
|
|
if(!a_wb.write((seek32)m_last)) return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
protected:
|
|
std::ostream& m_out;
|
|
seek m_first; //First free word of segment
|
|
seek m_last; //Last free word of segment
|
|
};
|
|
|
|
}}
|
|
|
|
#endif
|