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DiskMap.cc
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DiskMap.cc
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///////////////////////////////////////////////////////////
//
// SuperDiskIndex
//
////////////////////
//
//
//
#include "Global.h"
#include "DiskMap.h"
#include "Helpers.h"
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
///////////////////////////////////////////////////////////
DiskMap::DiskMap(u32 sectors, u32 clustersize_in_sectors, u32 first_cluster_offset)
{
SectorCount=sectors;
ClusterSize=clustersize_in_sectors;
ClusterOffset=first_cluster_offset;
Sectors = new u32[sectors];
memset(Sectors, 0, sectors*sizeof(*Sectors));
}
DiskMap::~DiskMap()
{
delete[](Sectors);
}
void DiskMap::SetBitsSector(u32 sector, u32 flags)
{
if (sector>=SectorCount) { clog(2,"# ERR: Cannot mark sector %d in DiskMap (OOB).", sector); return; }
Sectors[sector] |= flags;
}
void DiskMap::SetBitsCluster(u32 cluster, u32 flags)
{
for (u32 i=0; i<ClusterSize; i++)
{
SetBitsSector(ClusterOffset+cluster*ClusterSize+i, flags);
}
}
void DiskMap::ClearBitsSector(u32 sector, u32 flags)
{
Sectors[sector] &= ~flags;
}
void DiskMap::ClearBitsCluster(u32 cluster, u32 flags)
{
for (u32 i=0; i<ClusterSize; i++)
{
ClearBitsSector(ClusterOffset+cluster*ClusterSize+i, flags);
}
}
u32 DiskMap::GetSector(u32 sector, u32 mask)
{
if (sector>=SectorCount) return 0;
return Sectors[sector]&mask;
}
void DiskMap::OutputMaps(char const *fn)
{
int fd=-1;
if (Config.gen_maps)
{
fd = open(fn, O_WRONLY|O_CREAT|O_TRUNC, DEFFILEMODE);
}
DPrintBlockMap(fd);
DPrintFSMap(fd);
DPrintHealthMap(fd);
if (Config.gen_maps)
{
close(fd);
}
}
void DiskMap::DPrintFSMap(int fd)
{
cdprintf(Config.show_maps, Config.gen_maps, fd, "#################################################################################\n");
cdprintf(Config.show_maps, Config.gen_maps, fd, "### FileSystemMap:\n");
u16 outputwidth=128;
u32 lines=SectorCount/outputwidth;
if (lines*outputwidth<SectorCount) lines++;
for (u32 i=0; i<lines; i++)
{
cdprintf(Config.show_maps, Config.gen_maps, fd, "# %04d | ", i*outputwidth);
for (u32 j=0; (j<outputwidth)&&(i*outputwidth+j<SectorCount); j++)
{
char stype = '?';
switch (GetSector(i*outputwidth+j, DMF_CONTENT_MASK))
{
case DMF_BOOTBLOCK: stype='B'; break;
case DMF_ROOTBLOCK: stype='R'; break;
case DMF_BLOCKMAP: stype='M'; break;
case DMF_DIRECTORY: stype='D'; break;
case DMF_FILEHEADER: stype='F'; break;
case DMF_DATA: stype='+'; break;
case 0: stype='.'; break;
}
cdprintf(Config.show_maps, Config.gen_maps, fd, "%c",stype);
}
cdprintf(Config.show_maps, Config.gen_maps, fd, "\n");
}
cdprintf(Config.show_maps, Config.gen_maps, fd, "# Legend: (.) Empty (B) Boot (R) Root (M) Blockmap/FAT (D) Directory (F) FileHeader (+) Data\n");
}
void DiskMap::DPrintBlockMap(int fd)
{
cdprintf(Config.show_maps, Config.gen_maps, fd, "#################################################################################\n");
cdprintf(Config.show_maps, Config.gen_maps, fd, "### BlockMap:\n");
u16 outputwidth=128;
u32 lines=SectorCount/outputwidth;
if (lines*outputwidth<SectorCount) lines++;
for (u32 i=0; i<lines; i++)
{
cdprintf(Config.show_maps, Config.gen_maps, fd, "# %04d | ", i*outputwidth);
for (u32 j=0; (j<outputwidth)&&(i*outputwidth+j<SectorCount); j++)
{
char stype = '?';
switch (GetSector(i*outputwidth+j, DMF_BLOCKMAP_MASK))
{
case 0: stype='.'; break;
case DMF_BLOCK_USED: stype='+'; break;
default: stype='?'; break;
}
cdprintf(Config.show_maps, Config.gen_maps, fd, "%c",stype);
}
cdprintf(Config.show_maps, Config.gen_maps, fd, "\n");
}
cdprintf(Config.show_maps, Config.gen_maps, fd, "# Legend: (.) Unused (+) Used\n");
}
void DiskMap::DPrintHealthMap(int fd)
{
cdprintf(Config.show_maps, Config.gen_maps, fd, "#################################################################################\n");
cdprintf(Config.show_maps, Config.gen_maps, fd, "### HealthMap:\n");
u16 outputwidth=128;
u32 lines=SectorCount/outputwidth;
if (lines*outputwidth<SectorCount) lines++;
for (u32 i=0; i<lines; i++)
{
cdprintf(Config.show_maps, Config.gen_maps, fd, "# %04d | ", i*outputwidth);
for (u32 j=0; (j<outputwidth)&&(i*outputwidth+j<SectorCount); j++)
{
char stype = '?';
u32 sstate = GetSector(i*outputwidth+j, DMF_HEALTH_MASK);
if (false) {}
else if ((sstate&DMF_MISSING)>0) stype='M';
else if ((sstate&DMF_CRC_LOWLEVEL_BAD)>0) stype='D';
else if ((sstate&DMF_CRC_HIGHLEVEL_BAD)>0) stype='C';
else stype='.';
cdprintf(Config.show_maps, Config.gen_maps, fd, "%c",stype);
}
cdprintf(Config.show_maps, Config.gen_maps, fd, "\n");
}
cdprintf(Config.show_maps, Config.gen_maps, fd, "# Legend: (.) Ok (M) Missing (D) Defect/Lowlevel crc bad (C) Corrupted (filesys crc bad)\n");
}