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-rw-r--r--apt-pkg/tagfile.cc123
-rw-r--r--apt-pkg/tagfile.h19
2 files changed, 79 insertions, 63 deletions
diff --git a/apt-pkg/tagfile.cc b/apt-pkg/tagfile.cc
index 96a681bec..ff6593e26 100644
--- a/apt-pkg/tagfile.cc
+++ b/apt-pkg/tagfile.cc
@@ -24,26 +24,40 @@
using std::string;
+class pkgTagFilePrivate
+{
+public:
+ pkgTagFilePrivate(FileFd *pFd, unsigned long Size) : Fd(*pFd), Size(Size)
+ {
+ }
+ FileFd &Fd;
+ char *Buffer;
+ char *Start;
+ char *End;
+ bool Done;
+ unsigned long iOffset;
+ unsigned long Size;
+};
+
// TagFile::pkgTagFile - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* */
-pkgTagFile::pkgTagFile(FileFd *pFd,unsigned long Size) :
- Fd(*pFd),
- Size(Size)
+pkgTagFile::pkgTagFile(FileFd *pFd,unsigned long Size)
{
- if (Fd.IsOpen() == false)
+ d = new pkgTagFilePrivate(pFd, Size);
+
+ if (d->Fd.IsOpen() == false)
{
- Buffer = 0;
- Start = End = Buffer = 0;
- Done = true;
- iOffset = 0;
+ d->Start = d->End = d->Buffer = 0;
+ d->Done = true;
+ d->iOffset = 0;
return;
}
- Buffer = new char[Size];
- Start = End = Buffer;
- Done = false;
- iOffset = 0;
+ d->Buffer = new char[Size];
+ d->Start = d->End = d->Buffer;
+ d->Done = false;
+ d->iOffset = 0;
Fill();
}
/*}}}*/
@@ -52,7 +66,14 @@ pkgTagFile::pkgTagFile(FileFd *pFd,unsigned long Size) :
/* */
pkgTagFile::~pkgTagFile()
{
- delete [] Buffer;
+ delete [] d->Buffer;
+ delete d;
+}
+ /*}}}*/
+// TagFile::Offset - Return the current offset in the buffer /*{{{*/
+unsigned long pkgTagFile::Offset()
+{
+ return d->iOffset;
}
/*}}}*/
// TagFile::Resize - Resize the internal buffer /*{{{*/
@@ -63,22 +84,22 @@ pkgTagFile::~pkgTagFile()
bool pkgTagFile::Resize()
{
char *tmp;
- unsigned long EndSize = End - Start;
+ unsigned long EndSize = d->End - d->Start;
// fail is the buffer grows too big
- if(Size > 1024*1024+1)
+ if(d->Size > 1024*1024+1)
return false;
// get new buffer and use it
- tmp = new char[2*Size];
- memcpy(tmp, Buffer, Size);
- Size = Size*2;
- delete [] Buffer;
- Buffer = tmp;
+ tmp = new char[2*d->Size];
+ memcpy(tmp, d->Buffer, d->Size);
+ d->Size = d->Size*2;
+ delete [] d->Buffer;
+ d->Buffer = tmp;
// update the start/end pointers to the new buffer
- Start = Buffer;
- End = Start + EndSize;
+ d->Start = d->Buffer;
+ d->End = d->Start + EndSize;
return true;
}
/*}}}*/
@@ -90,20 +111,20 @@ bool pkgTagFile::Resize()
*/
bool pkgTagFile::Step(pkgTagSection &Tag)
{
- while (Tag.Scan(Start,End - Start) == false)
+ while (Tag.Scan(d->Start,d->End - d->Start) == false)
{
if (Fill() == false)
return false;
- if(Tag.Scan(Start,End - Start))
+ if(Tag.Scan(d->Start,d->End - d->Start))
break;
if (Resize() == false)
return _error->Error(_("Unable to parse package file %s (1)"),
- Fd.Name().c_str());
+ d->Fd.Name().c_str());
}
- Start += Tag.size();
- iOffset += Tag.size();
+ d->Start += Tag.size();
+ d->iOffset += Tag.size();
Tag.Trim();
return true;
@@ -115,37 +136,37 @@ bool pkgTagFile::Step(pkgTagSection &Tag)
then fills the rest from the file */
bool pkgTagFile::Fill()
{
- unsigned long EndSize = End - Start;
+ unsigned long EndSize = d->End - d->Start;
unsigned long Actual = 0;
- memmove(Buffer,Start,EndSize);
- Start = Buffer;
- End = Buffer + EndSize;
+ memmove(d->Buffer,d->Start,EndSize);
+ d->Start = d->Buffer;
+ d->End = d->Buffer + EndSize;
- if (Done == false)
+ if (d->Done == false)
{
// See if only a bit of the file is left
- if (Fd.Read(End,Size - (End - Buffer),&Actual) == false)
+ if (d->Fd.Read(d->End, d->Size - (d->End - d->Buffer),&Actual) == false)
return false;
- if (Actual != Size - (End - Buffer))
- Done = true;
- End += Actual;
+ if (Actual != d->Size - (d->End - d->Buffer))
+ d->Done = true;
+ d->End += Actual;
}
- if (Done == true)
+ if (d->Done == true)
{
if (EndSize <= 3 && Actual == 0)
return false;
- if (Size - (End - Buffer) < 4)
+ if (d->Size - (d->End - d->Buffer) < 4)
return true;
// Append a double new line if one does not exist
unsigned int LineCount = 0;
- for (const char *E = End - 1; E - End < 6 && (*E == '\n' || *E == '\r'); E--)
+ for (const char *E = d->End - 1; E - d->End < 6 && (*E == '\n' || *E == '\r'); E--)
if (*E == '\n')
LineCount++;
for (; LineCount < 2; LineCount++)
- *End++ = '\n';
+ *d->End++ = '\n';
return true;
}
@@ -160,33 +181,33 @@ bool pkgTagFile::Fill()
bool pkgTagFile::Jump(pkgTagSection &Tag,unsigned long Offset)
{
// We are within a buffer space of the next hit..
- if (Offset >= iOffset && iOffset + (End - Start) > Offset)
+ if (Offset >= d->iOffset && d->iOffset + (d->End - d->Start) > Offset)
{
- unsigned long Dist = Offset - iOffset;
- Start += Dist;
- iOffset += Dist;
+ unsigned long Dist = Offset - d->iOffset;
+ d->Start += Dist;
+ d->iOffset += Dist;
return Step(Tag);
}
// Reposition and reload..
- iOffset = Offset;
- Done = false;
- if (Fd.Seek(Offset) == false)
+ d->iOffset = Offset;
+ d->Done = false;
+ if (d->Fd.Seek(Offset) == false)
return false;
- End = Start = Buffer;
+ d->End = d->Start = d->Buffer;
if (Fill() == false)
return false;
- if (Tag.Scan(Start,End - Start) == true)
+ if (Tag.Scan(d->Start, d->End - d->Start) == true)
return true;
// This appends a double new line (for the real eof handling)
if (Fill() == false)
return false;
- if (Tag.Scan(Start,End - Start) == false)
- return _error->Error(_("Unable to parse package file %s (2)"),Fd.Name().c_str());
+ if (Tag.Scan(d->Start, d->End - d->Start) == false)
+ return _error->Error(_("Unable to parse package file %s (2)"),d->Fd.Name().c_str());
return true;
}
diff --git a/apt-pkg/tagfile.h b/apt-pkg/tagfile.h
index 6891c1d81..60d3c2cd0 100644
--- a/apt-pkg/tagfile.h
+++ b/apt-pkg/tagfile.h
@@ -23,16 +23,17 @@
#include <apt-pkg/fileutl.h>
#include <stdio.h>
-
+
class pkgTagSection
{
const char *Section;
-
// We have a limit of 256 tags per section.
unsigned int Indexes[256];
unsigned int AlphaIndexes[0x100];
-
unsigned int TagCount;
+ int *reserved1;
+ int *reserved2;
+ int *reserved3;
/* This very simple hash function for the last 8 letters gives
very good performance on the debian package files */
@@ -44,7 +45,6 @@ class pkgTagSection
return Res & 0xFF;
}
-
protected:
const char *Stop;
@@ -80,15 +80,10 @@ class pkgTagSection
pkgTagSection() : Section(0), Stop(0) {};
};
+class pkgTagFilePrivate;
class pkgTagFile
{
- FileFd &Fd;
- char *Buffer;
- char *Start;
- char *End;
- bool Done;
- unsigned long iOffset;
- unsigned long Size;
+ pkgTagFilePrivate *d;
bool Fill();
bool Resize();
@@ -96,7 +91,7 @@ class pkgTagFile
public:
bool Step(pkgTagSection &Section);
- inline unsigned long Offset() {return iOffset;};
+ inline unsigned long Offset();
bool Jump(pkgTagSection &Tag,unsigned long Offset);
pkgTagFile(FileFd *F,unsigned long Size = 32*1024);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 03:44:21 +0000