void VFSFile::dropBuf(bool del)
{
VFS_GUARD_OPT(this);
if(del)
delBuf(_buf);
_buf = NULL;
}
void VFSFileZip::dropBuf(bool del)
{
VFSFile::dropBuf(del);
VFS_GUARD_OPT(this);
if(del)
delBuf(_fixedStr);
_fixedStr = NULL;
}
//non-POSIX version
//Nastavuje, se kterym odkladacim buferem se bude pracovat...
//-----------------------------------------------------------
int ie_swap(int newswap) //nastavi ten spravny bufer do pameti...
{
int rc;
unsigned i;
if(swapnum==newswap) return 1;
if(swap2 && newswap>=0) //we are trying to optimize access to virtual memory now:
{
if(newswap==which1 && swapstr==swap2) // go from 2 to 1
{
mod2=swapmod;
swapstr=swap1;
swapidx=(unsigned *)swap1;
swapnum=which1;
swapmod=mod1;
return 1;
}
if(newswap==which2 && swapstr==swap1) // go from 1 to 2
{
mod1=swapmod;
swapstr=swap2;
swapidx=(unsigned *)swap2;
swapnum=which2;
swapmod=mod2;
return 1;
}
//!!JdS: 2004/1/5 {Revised the conditional expression for optimization ...}
if(swapstr==swap2 && (swapoptimize || swapcontext[newswap]>=swapcontext[which2]
&& swapcontext[which1]>=swapcontext[which2]) ) //2 to 1
//if(swapstr==swap2 && (swapoptimize || swapcontext[newswap]<=swapcontext[which1] &&
// swapcontext[newswap]<=swapcontext[which1]) ) //2 to 1
{
mod2=swapmod;
swapstr=swap1;
swapidx=(unsigned *)swap1;
swapnum=which1;
swapmod=mod1;
}
else
//!!JdS: 2004/1/5 {Revised the conditional expression for optimization ...}
if(swapstr==swap1 && (swapoptimize || swapcontext[newswap]>=swapcontext[which1]
&& swapcontext[which2]>=swapcontext[which1] || which2==-1)) //1 to 2
//if(swapstr==swap1 && (swapoptimize ||swapcontext[newswap]<=swapcontext[which2] &&
// swapcontext[newswap]<=swapcontext[which2] || which2==-1)) //1 to 2
{
mod1=swapmod;
swapstr=swap2;
swapidx=(unsigned *)swap2;
swapnum=which2;
swapmod=mod2;
}
} //----------------------------------------------------------------------
if(swapmod && swapnum>=0) // byl akt.buffer modifikovan?
{
//vymazat pripadne stary swap:
if(swapbufflag[swapnum])
{
delBuf(&swapbuf[swapnum]);
swapbufflag[swapnum]=0;
}
//do prvnich 2048 bytu ulozim pole swapidx
//!memcpy(swapstr,swapidx,2048);
//do handleru swapf[swapnym] ulozit bufer swapstr
rc=saveBuf(swapstr,(unsigned)((IE_SWAPSTART+swapsize[swapnum])),&swapbuf[swapnum]);
// printf("swapnum=%d, ulozeno %u bajtu, rc=%d",newswap,(unsigned)(IE_SWAPSTART+swapsize[swapnum]),rc);
if(rc!=1) return 2;
swapbufflag[swapnum]=1;
swapmod=0;
swapsavecount++;
}//endif
if(newswap==-1) return 1;
//nacteni noveho akt.bufferu:
i=IE_MAXSWAPLEN+IE_SWAPSTART; //!!! tady byla tezka chyba
if(swapbufflag[newswap])
{
rc=fromBuf(swapstr,0,&i,&swapbuf[newswap]);
if(rc!=1) return 2;
}
else
{
while(i>0)
{
i--;
swapstr[i]='\0';
}//loop
}//endif
swapnum=newswap;
if(swap2==swapstr)
{
which2=swapnum;
mod2=0;
}
else
{
which1=swapnum;
mod1=0;
}
swaploadcount++;
return 1;
}
