git-svn-id: https://profuse.googlecode.com/svn/branches/v2@117 aa027e90-d47c-11dd-86d7-074df07e0730
This commit is contained in:
ksherlock
parent
6f6338bc19
commit
736746052b
409
Directory.cpp
409
Directory.cpp
|
|
@ -2,7 +2,7 @@
|
|||
#include <cstring>
|
||||
#include <memory>
|
||||
|
||||
#include "Directory"
|
||||
#include "Entry.h"
|
||||
#include "Buffer.h"
|
||||
#include "Endian.h"
|
||||
|
||||
|
|
@ -12,154 +12,6 @@
|
|||
using namespace ProFUSE;
|
||||
using namespace LittleEndian;
|
||||
|
||||
static bool isalpha(unsigned c)
|
||||
{
|
||||
return (c >= 'A' && c <= 'Z')
|
||||
|| (c >= 'a' && x <= 'z') ;
|
||||
}
|
||||
|
||||
static bool isalnumdot(unsigned c)
|
||||
{
|
||||
return (c >= 'A' && c <= 'Z')
|
||||
|| (c >= 'a' && c <= 'z')
|
||||
|| (c >= '0' && c <='9')
|
||||
|| (c == '.') ;
|
||||
|
||||
}
|
||||
|
||||
static bool islower(unsigned c)
|
||||
{
|
||||
return c >= 'a' && c <= 'z';
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* ProDOS names:
|
||||
* 1-15 letters, digits, or '.'
|
||||
* first character must be a letter.
|
||||
*/
|
||||
unsigned Entry::ValidName(const char *name)
|
||||
{
|
||||
unsigned length;
|
||||
|
||||
if (!name) return 0;
|
||||
|
||||
if (!isalpha(*name)) return 0;
|
||||
length = 1;
|
||||
|
||||
for (length = 1; length < 17; ++length)
|
||||
{
|
||||
if (!isalnumdot(name[length])) return 0;
|
||||
}
|
||||
|
||||
if (length > 15) return 0;
|
||||
return length;
|
||||
}
|
||||
|
||||
Entry::Entry(unsigned type, const char *name)
|
||||
{
|
||||
_storageType = type;
|
||||
_address = 0;
|
||||
_index = 0;
|
||||
_volume = NULL;
|
||||
|
||||
// everything else initialized in setName.
|
||||
setName(name);
|
||||
}
|
||||
|
||||
Entry::Entry(const void *bp)
|
||||
{
|
||||
#undef __METHOD__
|
||||
#define __METHOD__ "Entry::Entry"
|
||||
|
||||
uint8_t x;
|
||||
uint16_t xcase = 0;
|
||||
_address = 0;
|
||||
_index = 0;
|
||||
_volume = NULL;
|
||||
_caseFlag = 0;
|
||||
std::memset(_name, 0, 16);
|
||||
std::memset(_namei, 0, 16);
|
||||
|
||||
x = Read8(bp, 0x00);
|
||||
_storageType = x >> 4;
|
||||
_nameLength = x & 0x0f;
|
||||
|
||||
for (unsigned i = 0; i < _nameLength; ++i)
|
||||
{
|
||||
_name[i] = _namei[i] = Read8(bp, i + 1);
|
||||
// check legality?
|
||||
}
|
||||
|
||||
switch (_storageType)
|
||||
{
|
||||
case SeedlingFile:
|
||||
case SaplingFile:
|
||||
case TreeFile:
|
||||
case PascalFile:
|
||||
case ExtendedFile:
|
||||
case DirectoryFile:
|
||||
xcase = Read16(bp, 0x1c);
|
||||
break;
|
||||
|
||||
case VolumeHeader:
|
||||
xcase = Read16(bp, 0x16);
|
||||
break;
|
||||
}
|
||||
|
||||
if (xcase & 0x8000)
|
||||
{
|
||||
_caseFlag = xcase;
|
||||
xcase <<= 1;
|
||||
for (unsigned i = 0; i < _nameLength; ++i, xcase <<= 1)
|
||||
{
|
||||
if (xcase & 0x8000)
|
||||
_name[i] = _name[i] | 0x20;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Entry::~Entry()
|
||||
{
|
||||
}
|
||||
|
||||
/*
|
||||
* IIgs Technote #8:
|
||||
*
|
||||
* bit 15 set
|
||||
* bit 14 + i set if name[i] is lowercase.
|
||||
*/
|
||||
void Entry::setName(const char *name)
|
||||
{
|
||||
#undef __METHOD__
|
||||
#define __METHOD__ "Entry::setName"
|
||||
|
||||
unsigned caseFlag = 0x8000;
|
||||
unsigned length = ValidName(name);
|
||||
if (!length) throw Exception("Invalid name.");
|
||||
|
||||
std::memset(_name, 0, 16);
|
||||
std::memset(_namei, 0, 16);
|
||||
|
||||
for (unsigned i = 0; i < length; ++i)
|
||||
{
|
||||
char c = name[i];
|
||||
_name[i] = c;
|
||||
_namei[i] = c & ~0x20; // upper
|
||||
if (islower(c))
|
||||
{
|
||||
caseFlag |= (0x4000 >> i);
|
||||
}
|
||||
}
|
||||
|
||||
_length = length;
|
||||
_caseFlag = caseFlag;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
Directory::Directory(unsigned type, const char *name) :
|
||||
|
|
@ -186,7 +38,7 @@ Directory::Directory(const void *bp) :
|
|||
|
||||
// input is a block pointer. To simplify,
|
||||
// create a new pointer past the 4-byte linked list part.
|
||||
void *dp = 4 + (const uint8_t *)bp;
|
||||
const void *dp = 4 + (const uint8_t *)bp;
|
||||
|
||||
_creation = DateTime(Read16(dp, 0x18), Read16(dp, 0x1a));
|
||||
|
||||
|
|
@ -197,7 +49,7 @@ Directory::Directory(const void *bp) :
|
|||
_entryLength = Read8(dp, 0x1f);
|
||||
_entriesPerBlock = Read8(dp, 0x20);
|
||||
|
||||
_fileCount = read16(dp, 0x21);
|
||||
_fileCount = Read16(dp, 0x21);
|
||||
|
||||
// parse child file entries ... requires ability to read other blocks.
|
||||
}
|
||||
|
|
@ -206,265 +58,14 @@ Directory::~Directory()
|
|||
{
|
||||
}
|
||||
|
||||
Directory::setAccess(unsigned access)
|
||||
void Directory::setAccess(unsigned access)
|
||||
{
|
||||
#undef __METHOD__
|
||||
#define __METHOD__ "Directory::setAccess"
|
||||
|
||||
if ((access & 0xe7) != access)
|
||||
throw Exception(__METHOD__ ": Illegal access.");
|
||||
|
||||
_access = access;
|
||||
|
||||
// todo -- mark dirty? update block?
|
||||
}
|
||||
|
||||
|
||||
#pragma mark VolumeDirectory
|
||||
|
||||
VolumeDirectory(const char *name, BlockDevice *device) :
|
||||
Directory(VolumeHeader, name)
|
||||
{
|
||||
_totalBlocks = device->blocks();
|
||||
_bitmapPointer = 6;
|
||||
|
||||
_entryBlocks.push_back(2);
|
||||
_entryBlocks.push_back(3);
|
||||
_entryBlocks.push_back(4)
|
||||
_entryBlocks.push_back(5);
|
||||
|
||||
std::auto_ptr<Bitmap> bitmap(new Bitmap(_totalBlocks));
|
||||
|
||||
|
||||
// 2 bootcode blocks
|
||||
for (unsigned i = 0; i < 2; ++i)
|
||||
{
|
||||
bitmap->allocBlock(i);
|
||||
device->zeroBlock(i);
|
||||
}
|
||||
|
||||
//4 volume header blocks.
|
||||
for (unsigned i = 2; i < 6; ++i)
|
||||
{
|
||||
bitmap->allocBlock(i);
|
||||
|
||||
buffer.clear();
|
||||
// prev block, next block
|
||||
buffer.push16le(i == 2 ? 0 : i - 1);
|
||||
buffer.push16le(i == 5 ? 0 : i + 1);
|
||||
|
||||
if (i == 2)
|
||||
{
|
||||
// create the volume header.
|
||||
// all ivars must be set.
|
||||
write(&out);
|
||||
}
|
||||
|
||||
buffer.rezize(512);
|
||||
device->write(i, buffer.buffer());
|
||||
}
|
||||
|
||||
// TODO -- create/write the volume entry....
|
||||
|
||||
// allocate blocks for the bitmap itself
|
||||
unsigned bb = bitmap->bitmapBlocks();
|
||||
for (unsigned i = 0; i < bb; ++i)
|
||||
bitmap->allocBlock(i);
|
||||
|
||||
// now write the bitmap...
|
||||
const uint8_t *bm = (const uint8_t *)bitmap->bitmap();
|
||||
for (unsigned i = 0; i < bb; ++i)
|
||||
{
|
||||
device->writeBlock(_bitmapPointer + i, 512 * i + bm);
|
||||
}
|
||||
|
||||
setDevice(device);
|
||||
_bitmap = bitmap.release();
|
||||
}
|
||||
|
||||
VolumeDirectory::~VolumeDirectory()
|
||||
{
|
||||
}
|
||||
|
||||
void VolumeDirectory::write(Buffer *out)
|
||||
{
|
||||
out->push8((VolumeHeader << 4 ) | (nameLength());
|
||||
out->pushBytes(namei(), 15);
|
||||
|
||||
// reserved. SOS uses 0x75 for the first byte [?]
|
||||
out->push8(0);
|
||||
out->push8(0);
|
||||
|
||||
// last mod
|
||||
out->push16le(_modification.date());
|
||||
out->push16le(_modification.time());
|
||||
|
||||
// filename case bits
|
||||
out->push16le(caseFlag());
|
||||
|
||||
// creation
|
||||
out->push16le(creation().date());
|
||||
out->push16le(creation().time());
|
||||
|
||||
out->push8(version());
|
||||
out->push8(minVersion());
|
||||
|
||||
|
||||
out->push8(access());
|
||||
out->push8(entryLength());
|
||||
out->push8(entriesPerBlock());
|
||||
out->push16le(fileCount());
|
||||
|
||||
out->push16le(_bitmapPointer());
|
||||
out->push16le(_totalBlocks);
|
||||
}
|
||||
|
||||
#pragma mark SubDirectory
|
||||
|
||||
SubDirectory::SubDirectory(FileEntry *e) :
|
||||
Directory(DirectoryHeader, e->iname())
|
||||
{
|
||||
_creation = e->creation();
|
||||
setAccess(e->access());
|
||||
|
||||
_parentEntryPointer = e->block();
|
||||
_parentEntryNumber = e->index();
|
||||
_parentEntryLength = 0x27;
|
||||
|
||||
}
|
||||
|
||||
SubDirectory::SubDirectory(const char *name) :
|
||||
Directory(DirectoryHeader, name)
|
||||
{
|
||||
_parentPointer = 0;
|
||||
_parentEntryNumber = 0;
|
||||
_parentEntryLength = 0x27;
|
||||
}
|
||||
|
||||
SubDirectory::SubDirectory(const void *bp) :
|
||||
Directory(bp)
|
||||
{
|
||||
const void *dp = 4 + (const uint8_t *)bp;
|
||||
|
||||
_parentPointer = Read16(dp, 0x23);
|
||||
_parentEntryNumber = Read8(dp, 0x25);
|
||||
_parentEntryLength = Read8(dp, 0x26);
|
||||
}
|
||||
|
||||
SubDirectory::~SubDirectory
|
||||
{
|
||||
}
|
||||
|
||||
void SubDirectory::write(Buffer *out)
|
||||
{
|
||||
out->push8((VolumeHeader << 4 ) | (nameLength());
|
||||
out->pushBytes(namei(), 15);
|
||||
|
||||
// reserved. 0x76 is stored in the first byte.
|
||||
// no one knows why.
|
||||
out->push8(0x76);
|
||||
out->push8(0);
|
||||
out->push8(0);
|
||||
out->push8(0);
|
||||
out->push8(0);
|
||||
out->push8(0);
|
||||
out->push8(0);
|
||||
out->push8(0);
|
||||
|
||||
// creation
|
||||
out->push16le(creation().date());
|
||||
out->push16le(creation().time());
|
||||
|
||||
out->push8(version());
|
||||
out->push8(minVersion());
|
||||
|
||||
out->push8(access());
|
||||
out->push8(entryLength());
|
||||
out->push8(entriesPerBlock());
|
||||
out->push16le(fileCount());
|
||||
out->push16le(_parentPointer);
|
||||
out->push8(_parentEntryNumber);
|
||||
out->push8(_parentEntryLength);
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
FileEntry::FileEntry(unsigned type, const char *name) :
|
||||
Entry(type, name)
|
||||
{
|
||||
_fileType = type == DirectoryFile ? 0x0f : 0x00;
|
||||
_keyPointer = 0;
|
||||
_blocksUsed = 0;
|
||||
_eof = 0;
|
||||
_access = 0xe3;
|
||||
_auxType = 0;
|
||||
_headerPointer = 0;
|
||||
}
|
||||
|
||||
|
||||
FileEntry::FileEntry(const void *vp) :
|
||||
Entry(vp),
|
||||
_creation(0,0),
|
||||
_modification(0,0)
|
||||
{
|
||||
#undef __METHOD__
|
||||
#define __METHOD__ "FileEntry::FileEntry"
|
||||
|
||||
switch(storageType())
|
||||
{
|
||||
case SeedlingFile:
|
||||
case SaplingFile:
|
||||
case TreeFile:
|
||||
case PascalFile:
|
||||
case ExtendedFile:
|
||||
case DirectoryFile:
|
||||
break;
|
||||
default:
|
||||
throw Exception(__METHOD__ ": Invalid storage type.");
|
||||
}
|
||||
|
||||
|
||||
_fileType = Read8(vp, 0x10);
|
||||
_keyPointer = Read16(vp, 0x11);
|
||||
_blocksUsed = Read16(vp, 0x13);
|
||||
_eof = Read24(vp, 0x15);
|
||||
_creation = DateTime(Read16(vp, 0x18), Read16(vp, 0x1a));
|
||||
_access = Read8(vp, 0x1e);
|
||||
_auxType = Read16(vp, 0x1f);
|
||||
_modification = DateTime(Read16(vp, 0x21), Read16(vp, 0x23));
|
||||
_headerPointer = Read16(vp, 0x25);
|
||||
|
||||
|
||||
}
|
||||
|
||||
FileEntry::~FileEntry()
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
void FileEntry::write(Buffer *out)
|
||||
{
|
||||
out->push8((VolumeHeader << 4 ) | (nameLength());
|
||||
out->pushBytes(namei(), 15);
|
||||
|
||||
out->push8(_fileType);
|
||||
out->push16le(_keyPointer);
|
||||
out->push16le(_blocksUsed);
|
||||
out-push24le(_eof);
|
||||
|
||||
// creation
|
||||
out->push16le(_creation.date());
|
||||
out->push16le(_creation.time());
|
||||
|
||||
// case bits
|
||||
out->push16le(caseFlag());
|
||||
|
||||
out->push8(_access);
|
||||
put->push16le(_auxType);
|
||||
|
||||
// modification
|
||||
out->push16le(_modification.date());
|
||||
out->push16le(_modification.time());
|
||||
|
||||
out->push16le(_headerPointer);
|
||||
}
|
||||
|
|
@ -0,0 +1,169 @@
|
|||
#include "Entry.h"
|
||||
#include "Endian.h"
|
||||
#include "Buffer.h"
|
||||
#include "Exception.h"
|
||||
|
||||
using namespace ProFUSE;
|
||||
using namespace LittleEndian;
|
||||
|
||||
// do it ourselves since could be different locale or something.
|
||||
#undef isalpha
|
||||
#undef isalnumdot
|
||||
#undef islower
|
||||
#undef tolower
|
||||
#undef toupper
|
||||
|
||||
static bool isalpha(char c)
|
||||
{
|
||||
return (c >= 'A' && c <= 'Z')
|
||||
|| (c >= 'a' && c <= 'z') ;
|
||||
}
|
||||
|
||||
static bool isalnumdot(char c)
|
||||
{
|
||||
return (c >= 'A' && c <= 'Z')
|
||||
|| (c >= 'a' && c <= 'z')
|
||||
|| (c >= '0' && c <='9')
|
||||
|| (c == '.') ;
|
||||
|
||||
}
|
||||
|
||||
static bool islower(char c)
|
||||
{
|
||||
return c >= 'a' && c <= 'z';
|
||||
}
|
||||
|
||||
|
||||
inline char tolower(char c) { return c | 0x20; }
|
||||
inline char toupper(char c) { return c & ~0x20; }
|
||||
|
||||
/*
|
||||
* ProDOS names:
|
||||
* 1-15 letters, digits, or '.'
|
||||
* first character must be a letter.
|
||||
*/
|
||||
unsigned Entry::ValidName(const char *name)
|
||||
{
|
||||
unsigned length = 1;
|
||||
|
||||
if (!name) return 0;
|
||||
|
||||
if (!isalpha(*name)) return 0;
|
||||
|
||||
for (length = 1; length < 17; ++length)
|
||||
{
|
||||
if (!isalnumdot(name[length])) return 0;
|
||||
}
|
||||
|
||||
if (length > 15) return 0;
|
||||
return length;
|
||||
}
|
||||
|
||||
|
||||
Entry::Entry(unsigned type, const char *name)
|
||||
{
|
||||
_address = 0;
|
||||
_index = 0;
|
||||
_volume = NULL;
|
||||
_nameLength = 0;
|
||||
_caseFlag = 0;
|
||||
_storageType = type;
|
||||
|
||||
// everything else initialized in setName.
|
||||
setName(name);
|
||||
}
|
||||
|
||||
Entry::Entry(const void *bp)
|
||||
{
|
||||
#undef __METHOD__
|
||||
#define __METHOD__ "Entry::Entry"
|
||||
|
||||
uint8_t x;
|
||||
uint16_t xcase = 0;
|
||||
|
||||
_address = 0;
|
||||
_index = 0;
|
||||
_volume = NULL;
|
||||
|
||||
_caseFlag = 0;
|
||||
_nameLength = 0;
|
||||
|
||||
std::memset(_name, 0, 16);
|
||||
std::memset(_namei, 0, 16);
|
||||
|
||||
x = Read8(bp, 0x00);
|
||||
_storageType = x >> 4;
|
||||
_nameLength = x & 0x0f;
|
||||
|
||||
for (unsigned i = 0; i < _nameLength; ++i)
|
||||
{
|
||||
_name[i] = _namei[i] = Read8(bp, i + 1);
|
||||
// check legality?
|
||||
}
|
||||
|
||||
switch (_storageType)
|
||||
{
|
||||
case SeedlingFile:
|
||||
case SaplingFile:
|
||||
case TreeFile:
|
||||
case PascalFile:
|
||||
case ExtendedFile:
|
||||
case DirectoryFile:
|
||||
xcase = Read16(bp, 0x1c);
|
||||
break;
|
||||
|
||||
case VolumeHeader:
|
||||
xcase = Read16(bp, 0x16);
|
||||
break;
|
||||
}
|
||||
|
||||
if (xcase & 0x8000)
|
||||
{
|
||||
_caseFlag = xcase;
|
||||
xcase <<= 1;
|
||||
for (unsigned i = 0; i < _nameLength; ++i, xcase <<= 1)
|
||||
{
|
||||
if (xcase & 0x8000)
|
||||
_name[i] = tolower(_name[i]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Entry::~Entry()
|
||||
{
|
||||
}
|
||||
|
||||
/*
|
||||
* IIgs Technote #8:
|
||||
*
|
||||
* bit 15 set
|
||||
* bit 14 + i set if name[i] is lowercase.
|
||||
*/
|
||||
void Entry::setName(const char *name)
|
||||
{
|
||||
#undef __METHOD__
|
||||
#define __METHOD__ "Entry::setName"
|
||||
|
||||
unsigned caseFlag = 0x8000;
|
||||
unsigned length = ValidName(name);
|
||||
if (!length) throw Exception("Invalid name.");
|
||||
|
||||
std::memset(_name, 0, 16);
|
||||
std::memset(_namei, 0, 16);
|
||||
|
||||
for (unsigned i = 0; i < length; ++i)
|
||||
{
|
||||
char c = name[i];
|
||||
_name[i] = c;
|
||||
_namei[i] = toupper(c);
|
||||
if (islower(c))
|
||||
{
|
||||
caseFlag |= (0x4000 >> i);
|
||||
}
|
||||
}
|
||||
|
||||
_nameLength = length;
|
||||
_caseFlag = caseFlag;
|
||||
}
|
||||
|
||||
|
||||
48
Entry.h
48
Entry.h
|
|
@ -52,7 +52,7 @@ public:
|
|||
const char *name() const { return _name; }
|
||||
const char *namei() const { return _namei; }
|
||||
|
||||
unsigned caseFlags() const { return _caseFlags; }
|
||||
unsigned caseFlag() const { return _caseFlag; }
|
||||
|
||||
|
||||
void setName(const char *name);
|
||||
|
|
@ -63,37 +63,33 @@ public:
|
|||
static unsigned ValidName(const char *);
|
||||
|
||||
|
||||
unsigned block() const { return _address / 512; }
|
||||
unsigned block() const { return _address / 512; }
|
||||
unsigned offset() const { return _address % 512; }
|
||||
|
||||
unsigned address() const { return _address; }
|
||||
|
||||
unsigned index() const { return _index; }
|
||||
|
||||
Volume *volume() { return _volume; }
|
||||
|
||||
protected:
|
||||
Entry(int storageType, const char *name);
|
||||
Entry(unsigned storageType, const char *name);
|
||||
Entry(const void *bp);
|
||||
|
||||
|
||||
setStorageType(unsigned type)
|
||||
{
|
||||
_storageType = type;
|
||||
}
|
||||
void setStorageType(unsigned type)
|
||||
{ _storageType = type; }
|
||||
|
||||
void setAddress(unsigned address)
|
||||
{ _address = address; }
|
||||
|
||||
setAddress(unsigned address)
|
||||
{
|
||||
_address = address;
|
||||
}
|
||||
|
||||
setIndex(unsigned index)
|
||||
{
|
||||
_index = index;w
|
||||
}
|
||||
|
||||
void setIndex(unsigned index)
|
||||
{ _index = index; }
|
||||
|
||||
|
||||
Volume *volume() { return _volume; }
|
||||
void setVolume(Volume *v)
|
||||
{ _volume = v; }
|
||||
|
||||
|
||||
|
||||
private:
|
||||
|
||||
|
|
@ -101,7 +97,7 @@ private:
|
|||
unsigned _index;
|
||||
|
||||
Volume *_volume;
|
||||
|
||||
|
||||
unsigned _storageType;
|
||||
unsigned _nameLength;
|
||||
char _namei[15+1]; // insensitive, ie, uppercase.
|
||||
|
|
@ -139,8 +135,8 @@ protected:
|
|||
private:
|
||||
|
||||
DateTime _creation;
|
||||
unsigned _version
|
||||
unsigned _minVersion
|
||||
unsigned _version;
|
||||
unsigned _minVersion;
|
||||
unsigned _access;
|
||||
unsigned _entryLength; // always 0x27
|
||||
unsigned _entriesPerBlock; //always 0x0d
|
||||
|
|
@ -153,6 +149,7 @@ private:
|
|||
class VolumeDirectory: public Directory {
|
||||
public:
|
||||
|
||||
VolumeDirectory(const char *name, BlockDevice *device);
|
||||
virtual ~VolumeDirectory();
|
||||
|
||||
unsigned bitmapPointer() const { return _bitmapPointer; }
|
||||
|
|
@ -162,12 +159,17 @@ public:
|
|||
int allocBlock();
|
||||
void freeBlock(unsigned block);
|
||||
|
||||
virtual void write(Buffer *);
|
||||
|
||||
BlockDevice *device() const { return _device; }
|
||||
private:
|
||||
Bitmap *_bitmap;
|
||||
BlockDevice *_device;
|
||||
|
||||
DateTime _modification;
|
||||
unsigned _totalBlocks;
|
||||
unsigned _bitmapPointer;
|
||||
|
||||
|
||||
// inode / free inode list?
|
||||
|
||||
};
|
||||
|
|
|
|||
|
|
@ -0,0 +1,119 @@
|
|||
|
||||
#include <cstring>
|
||||
#include <memory>
|
||||
|
||||
#include "Bitmap.h"
|
||||
#include "BlockDevice.h"
|
||||
#include "Buffer.h"
|
||||
#include "Endian.h"
|
||||
#include "Entry.h"
|
||||
#include "Exception.h"
|
||||
|
||||
using namespace ProFUSE;
|
||||
using namespace LittleEndian;
|
||||
|
||||
|
||||
#pragma mark VolumeDirectory
|
||||
|
||||
VolumeDirectory::VolumeDirectory(const char *name, BlockDevice *device) :
|
||||
Directory(VolumeHeader, name)
|
||||
{
|
||||
_totalBlocks = device->blocks();
|
||||
_bitmapPointer = 6;
|
||||
|
||||
_entryBlocks.push_back(2);
|
||||
_entryBlocks.push_back(3);
|
||||
_entryBlocks.push_back(4);
|
||||
_entryBlocks.push_back(5);
|
||||
|
||||
std::auto_ptr<Bitmap> bitmap(new Bitmap(_totalBlocks));
|
||||
|
||||
Buffer buffer(512);
|
||||
|
||||
// 2 bootcode blocks
|
||||
for (unsigned i = 0; i < 2; ++i)
|
||||
{
|
||||
bitmap->allocBlock(i);
|
||||
device->zeroBlock(i);
|
||||
}
|
||||
|
||||
//4 volume header blocks.
|
||||
for (unsigned i = 2; i < 6; ++i)
|
||||
{
|
||||
bitmap->allocBlock(i);
|
||||
|
||||
buffer.clear();
|
||||
// prev block, next block
|
||||
buffer.push16le(i == 2 ? 0 : i - 1);
|
||||
buffer.push16le(i == 5 ? 0 : i + 1);
|
||||
|
||||
if (i == 2)
|
||||
{
|
||||
// create the volume header.
|
||||
// all ivars must be set.
|
||||
write(&buffer);
|
||||
}
|
||||
|
||||
buffer.resize(512);
|
||||
device->write(i, buffer.buffer());
|
||||
}
|
||||
|
||||
// TODO -- create/write the volume entry....
|
||||
|
||||
// allocate blocks for the bitmap itself
|
||||
unsigned bb = bitmap->bitmapBlocks();
|
||||
for (unsigned i = 0; i < bb; ++i)
|
||||
bitmap->allocBlock(i);
|
||||
|
||||
// now write the bitmap...
|
||||
const uint8_t *bm = (const uint8_t *)bitmap->bitmap();
|
||||
for (unsigned i = 0; i < bb; ++i)
|
||||
{
|
||||
device->write(_bitmapPointer + i, 512 * i + bm);
|
||||
}
|
||||
|
||||
_device = device;
|
||||
_bitmap = bitmap.release();
|
||||
}
|
||||
|
||||
VolumeDirectory::~VolumeDirectory()
|
||||
{
|
||||
if (_device)
|
||||
{
|
||||
_device->sync();
|
||||
delete _device;
|
||||
}
|
||||
}
|
||||
|
||||
void VolumeDirectory::write(Buffer *out)
|
||||
{
|
||||
out->push8((VolumeHeader << 4 ) | nameLength());
|
||||
out->pushBytes(namei(), 15);
|
||||
|
||||
// reserved. SOS uses 0x75 for the first byte [?]
|
||||
out->push8(0);
|
||||
out->push8(0);
|
||||
|
||||
// last mod
|
||||
out->push16le(_modification.date());
|
||||
out->push16le(_modification.time());
|
||||
|
||||
// filename case bits
|
||||
out->push16le(caseFlag());
|
||||
|
||||
// creation
|
||||
out->push16le(creation().date());
|
||||
out->push16le(creation().time());
|
||||
|
||||
out->push8(version());
|
||||
out->push8(minVersion());
|
||||
|
||||
|
||||
out->push8(access());
|
||||
out->push8(entryLength());
|
||||
out->push8(entriesPerBlock());
|
||||
out->push16le(fileCount());
|
||||
|
||||
out->push16le(_bitmapPointer);
|
||||
out->push16le(_totalBlocks);
|
||||
}
|
||||
Loading…
Reference in New Issue