summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--apt-pkg/tagfile.cc105
-rw-r--r--apt-pkg/tagfile.h24
-rw-r--r--debian/libapt-pkg4.15.symbols1
3 files changed, 87 insertions, 43 deletions
diff --git a/apt-pkg/tagfile.cc b/apt-pkg/tagfile.cc
index 3ee5c7076..590206f17 100644
--- a/apt-pkg/tagfile.cc
+++ b/apt-pkg/tagfile.cc
@@ -47,6 +47,23 @@ public:
unsigned long long Size;
};
+class pkgTagSectionPrivate
+{
+public:
+ pkgTagSectionPrivate()
+ {
+ }
+ struct TagData {
+ unsigned int StartTag;
+ unsigned int EndTag;
+ unsigned int StartValue;
+ unsigned int NextInBucket;
+
+ TagData(unsigned int const StartTag) : StartTag(StartTag), EndTag(0), StartValue(0), NextInBucket(0) {}
+ };
+ std::vector<TagData> Tags;
+};
+
static unsigned long AlphaHash(const char *Text, size_t Length) /*{{{*/
{
/* This very simple hash function for the last 8 letters gives
@@ -274,11 +291,18 @@ bool pkgTagFile::Jump(pkgTagSection &Tag,unsigned long long Offset)
// pkgTagSection::pkgTagSection - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* */
+APT_IGNORE_DEPRECATED_PUSH
pkgTagSection::pkgTagSection()
: Section(0), d(NULL), Stop(0)
{
- memset(&LookupTable, 0, sizeof(LookupTable));
+ d = new pkgTagSectionPrivate();
+#if APT_PKG_ABI < 413
+ TagCount = 0;
+ memset(&Indexes, 0, sizeof(Indexes));
+#endif
+ memset(&AlphaIndexes, 0, sizeof(AlphaIndexes));
}
+APT_IGNORE_DEPRECATED_POP
/*}}}*/
// TagSection::Scan - Scan for the end of the header information /*{{{*/
#if APT_PKG_ABI < 413
@@ -292,9 +316,9 @@ bool pkgTagSection::Scan(const char *Start,unsigned long MaxLength, bool const R
Section = Start;
const char *End = Start + MaxLength;
- if (Restart == false && Tags.empty() == false)
+ if (Restart == false && d->Tags.empty() == false)
{
- Stop = Section + Tags.back().StartTag;
+ Stop = Section + d->Tags.back().StartTag;
if (End <= Stop)
return false;
Stop = (const char *)memchr(Stop,'\n',End - Stop);
@@ -305,19 +329,23 @@ bool pkgTagSection::Scan(const char *Start,unsigned long MaxLength, bool const R
else
{
Stop = Section;
- if (Tags.empty() == false)
+ if (d->Tags.empty() == false)
{
- memset(&LookupTable, 0, sizeof(LookupTable));
- Tags.clear();
+ memset(&AlphaIndexes, 0, sizeof(AlphaIndexes));
+ d->Tags.clear();
}
- Tags.reserve(0x100);
+ d->Tags.reserve(0x100);
}
- size_t TagCount = Tags.size();
+#if APT_PKG_ABI >= 413
+ unsigned int TagCount = d->Tags.size();
+#else
+ APT_IGNORE_DEPRECATED(TagCount = d->Tags.size();)
+#endif
if (Stop == 0)
return false;
- TagData lastTagData(0);
+ pkgTagSectionPrivate::TagData lastTagData(0);
lastTagData.EndTag = 0;
unsigned long lastTagHash = 0;
while (Stop < End)
@@ -335,14 +363,20 @@ bool pkgTagSection::Scan(const char *Start,unsigned long MaxLength, bool const R
// store the last found tag
if (lastTagData.EndTag != 0)
{
- if (LookupTable[lastTagHash] != 0)
- lastTagData.NextInBucket = LookupTable[lastTagHash];
- LookupTable[lastTagHash] = TagCount;
- Tags.push_back(lastTagData);
+ if (AlphaIndexes[lastTagHash] != 0)
+ lastTagData.NextInBucket = AlphaIndexes[lastTagHash];
+ APT_IGNORE_DEPRECATED_PUSH
+ AlphaIndexes[lastTagHash] = TagCount;
+#if APT_PKG_ABI < 413
+ if (d->Tags.size() < sizeof(Indexes)/sizeof(Indexes[0]))
+ Indexes[d->Tags.size()] = lastTagData.StartTag;
+#endif
+ APT_IGNORE_DEPRECATED_POP
+ d->Tags.push_back(lastTagData);
}
- ++TagCount;
- lastTagData = TagData(Stop - Section);
+ APT_IGNORE_DEPRECATED(++TagCount;)
+ lastTagData = pkgTagSectionPrivate::TagData(Stop - Section);
// find the colon separating tag and value
char const * Colon = (char const *) memchr(Stop, ':', End - Stop);
if (Colon == NULL)
@@ -377,14 +411,20 @@ bool pkgTagSection::Scan(const char *Start,unsigned long MaxLength, bool const R
{
if (lastTagData.EndTag != 0)
{
- if (LookupTable[lastTagHash] != 0)
- lastTagData.NextInBucket = LookupTable[lastTagHash];
- LookupTable[lastTagHash] = TagCount;
- Tags.push_back(lastTagData);
+ if (AlphaIndexes[lastTagHash] != 0)
+ lastTagData.NextInBucket = AlphaIndexes[lastTagHash];
+ APT_IGNORE_DEPRECATED(AlphaIndexes[lastTagHash] = TagCount;)
+#if APT_PKG_ABI < 413
+ APT_IGNORE_DEPRECATED(Indexes[d->Tags.size()] = lastTagData.StartTag;)
+#endif
+ d->Tags.push_back(lastTagData);
}
- TagData const td(Stop - Section);
- Tags.push_back(td);
+ pkgTagSectionPrivate::TagData const td(Stop - Section);
+#if APT_PKG_ABI < 413
+ APT_IGNORE_DEPRECATED(Indexes[d->Tags.size()] = td.StartTag;)
+#endif
+ d->Tags.push_back(td);
TrimRecord(false,End);
return true;
}
@@ -430,16 +470,16 @@ bool pkgTagSection::Exists(const char* const Tag)
bool pkgTagSection::Find(const char *Tag,unsigned int &Pos) const
{
size_t const Length = strlen(Tag);
- unsigned int Bucket = LookupTable[AlphaHash(Tag, Length)];
+ unsigned int Bucket = AlphaIndexes[AlphaHash(Tag, Length)];
if (Bucket == 0)
return false;
- for (; Bucket != 0; Bucket = Tags[Bucket - 1].NextInBucket)
+ for (; Bucket != 0; Bucket = d->Tags[Bucket - 1].NextInBucket)
{
- if ((Tags[Bucket - 1].EndTag - Tags[Bucket - 1].StartTag) != Length)
+ if ((d->Tags[Bucket - 1].EndTag - d->Tags[Bucket - 1].StartTag) != Length)
continue;
- char const * const St = Section + Tags[Bucket - 1].StartTag;
+ char const * const St = Section + d->Tags[Bucket - 1].StartTag;
if (strncasecmp(Tag,St,Length) != 0)
continue;
@@ -457,9 +497,9 @@ bool pkgTagSection::Find(const char *Tag,const char *&Start,
if (Find(Tag, Pos) == false)
return false;
- Start = Section + Tags[Pos].StartValue;
+ Start = Section + d->Tags[Pos].StartValue;
// Strip off the gunk from the end
- End = Section + Tags[Pos + 1].StartTag;
+ End = Section + d->Tags[Pos + 1].StartTag;
if (unlikely(Start > End))
return _error->Error("Internal parsing error");
@@ -571,11 +611,16 @@ bool pkgTagSection::FindFlag(unsigned long &Flags, unsigned long Flag,
return true;
}
/*}}}*/
+void pkgTagSection::Get(const char *&Start,const char *&Stop,unsigned int I) const
+{
+ Start = Section + d->Tags[I].StartTag;
+ Stop = Section + d->Tags[I+1].StartTag;
+}
APT_PURE unsigned int pkgTagSection::Count() const { /*{{{*/
- if (Tags.empty() == true)
+ if (d->Tags.empty() == true)
return 0;
// the last element is just marking the end and isn't a real one
- return Tags.size() - 1;
+ return d->Tags.size() - 1;
}
/*}}}*/
// TFRewrite - Rewrite a control record /*{{{*/
@@ -768,4 +813,4 @@ bool TFRewrite(FILE *Output,pkgTagSection const &Tags,const char *Order[],
}
/*}}}*/
-pkgTagSection::~pkgTagSection() {}
+pkgTagSection::~pkgTagSection() { delete d; }
diff --git a/apt-pkg/tagfile.h b/apt-pkg/tagfile.h
index ac6d42089..d09e7046c 100644
--- a/apt-pkg/tagfile.h
+++ b/apt-pkg/tagfile.h
@@ -33,23 +33,22 @@
#endif
class FileFd;
+class pkgTagSectionPrivate;
class pkgTagSection
{
const char *Section;
- struct TagData {
- unsigned int StartTag;
- unsigned int EndTag;
- unsigned int StartValue;
- unsigned int NextInBucket;
-
- TagData(unsigned int const StartTag) : StartTag(StartTag), EndTag(0), StartValue(0), NextInBucket(0) {}
- };
- std::vector<TagData> Tags;
- unsigned int LookupTable[0x100];
+ // We have a limit of 256 tags per section with the old abi
+#if APT_PKG_ABI < 413
+ APT_DEPRECATED unsigned int Indexes[256];
+#endif
+ unsigned int AlphaIndexes[0x100];
+#if APT_PKG_ABI < 413
+ APT_DEPRECATED unsigned int TagCount;
+#endif
// dpointer placeholder (for later in case we need it)
- void *d;
+ pkgTagSectionPrivate *d;
protected:
const char *Stop;
@@ -109,8 +108,7 @@ class pkgTagSection
bool Exists(const char* const Tag);
#endif
- inline void Get(const char *&Start,const char *&Stop,unsigned int I) const
- {Start = Section + Tags[I].StartTag; Stop = Section + Tags[I+1].StartTag;}
+ void Get(const char *&Start,const char *&Stop,unsigned int I) const;
inline void GetSection(const char *&Start,const char *&Stop) const
{
diff --git a/debian/libapt-pkg4.15.symbols b/debian/libapt-pkg4.15.symbols
index 5e0c0244d..55b7f33c3 100644
--- a/debian/libapt-pkg4.15.symbols
+++ b/debian/libapt-pkg4.15.symbols
@@ -1380,6 +1380,7 @@ libapt-pkg.so.4.15 libapt-pkg4.15 #MINVER#
(c++)"indexRecords::IsNeverTrusted() const@Base" 1.1~exp5
(c++)"indexRecords::SetTrusted(bool)@Base" 1.1~exp5
(c++)"metaIndex::metaIndex(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, char const*)@Base" 1.1~exp9
+ (c++)"pkgTagSection::Get(char const*&, char const*&, unsigned int) const@Base" 1.1~exp9
### gcc-4.6 artefacts
# (c++|optional=implicit)"HashString::operator=(HashString const&)@Base" 0.8.0
# (c++|optional=implicit)"HashString::HashString(HashString const&)@Base" 0.8.0
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-15 04:50:13 +0000