Switch performance critical code to use APT::StringView

[apt.git] / apt-pkg / deb / deblistparser.h

diff --git a/apt-pkg/deb/deblistparser.h b/apt-pkg/deb/deblistparser.h
index 386d291a2e1378a260a977e03db9137f04fe4748..ad134f8e64739821d814629858b460fe3cb843f2 100644 (file)
--- a/apt-pkg/deb/deblistparser.h
+++ b/apt-pkg/deb/deblistparser.h
@@ -13,12 +13,23 @@
 
 #include <apt-pkg/pkgcachegen.h>
 #include <apt-pkg/tagfile.h>
+#include <apt-pkg/md5.h>
+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/macros.h>
+
+#include <string>
+#include <vector>
+#ifdef APT_PKG_EXPOSE_STRING_VIEW
+#include <apt-pkg/string_view.h>
+#endif
 
 #ifndef APT_8_CLEANER_HEADERS
 #include <apt-pkg/indexfile.h>
 #endif
 
-class debListParser : public pkgCacheGenerator::ListParser
+class FileFd;
+
+class APT_HIDDEN debListParser : public pkgCacheListParser
 {
    public:
 
@@ -31,56 +42,105 @@ class debListParser : public pkgCacheGenerator::ListParser
 
    private:
    /** \brief dpointer placeholder (for later in case we need it) */
-   void *d;
+   void * const d;
 
    protected:
    pkgTagFile Tags;
    pkgTagSection Section;
-   unsigned long iOffset;
-   std::string Arch;
-   std::vector<std::string> Architectures;
-   bool MultiArchEnabled;
+   map_filesize_t iOffset;
 
-   unsigned long UniqFindTagWrite(const char *Tag);
    virtual bool ParseStatus(pkgCache::PkgIterator &Pkg,pkgCache::VerIterator &Ver);
    bool ParseDepends(pkgCache::VerIterator &Ver,const char *Tag,
                     unsigned int Type);
    bool ParseProvides(pkgCache::VerIterator &Ver);
-   bool NewProvidesAllArch(pkgCache::VerIterator &Ver, std::string const &Package, std::string const &Version);
-   static bool GrabWord(std::string Word,WordList *List,unsigned char &Out);
-   
+
+#ifdef APT_PKG_EXPOSE_STRING_VIEW
+   APT_HIDDEN static bool GrabWord(APT::StringView Word,const WordList *List,unsigned char &Out);
+#endif
+   APT_HIDDEN unsigned char ParseMultiArch(bool const showErrors);
+
    public:
 
-   static unsigned char GetPrio(std::string Str);
+   APT_PUBLIC static unsigned char GetPrio(std::string Str);
       
    // These all operate against the current section
-   virtual std::string Package();
-   virtual std::string Architecture();
-   virtual bool ArchitectureAll();
-   virtual std::string Version();
-   virtual bool NewVersion(pkgCache::VerIterator &Ver);
-   virtual std::string Description();
-   virtual std::string DescriptionLanguage();
-   virtual MD5SumValue Description_md5();
-   virtual unsigned short VersionHash();
+   virtual std::string Package() APT_OVERRIDE;
+   virtual std::string Architecture() APT_OVERRIDE;
+   virtual bool ArchitectureAll() APT_OVERRIDE;
+   virtual std::string Version() APT_OVERRIDE;
+   virtual bool NewVersion(pkgCache::VerIterator &Ver) APT_OVERRIDE;
+   virtual std::string Description(std::string const &lang) APT_OVERRIDE;
+#ifdef APT_PKG_EXPOSE_STRING_VIEW
+   APT::StringView Description(APT::StringView lang);
+#endif
+   virtual std::vector<std::string> AvailableDescriptionLanguages() APT_OVERRIDE;
+   virtual MD5SumValue Description_md5() APT_OVERRIDE;
+   virtual unsigned short VersionHash() APT_OVERRIDE;
+   virtual bool SameVersion(unsigned short const Hash, pkgCache::VerIterator const &Ver) APT_OVERRIDE;
    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
-                          pkgCache::VerIterator &Ver);
-   virtual unsigned long Offset() {return iOffset;};
-   virtual unsigned long Size() {return Section.size();};
+                          pkgCache::VerIterator &Ver) APT_OVERRIDE;
+   virtual map_filesize_t Offset() APT_OVERRIDE {return iOffset;};
+   virtual map_filesize_t Size() APT_OVERRIDE {return Section.size();};
 
-   virtual bool Step();
-   
-   bool LoadReleaseInfo(pkgCache::PkgFileIterator &FileI,FileFd &File,
-                       std::string section);
-   
-   static const char *ParseDepends(const char *Start,const char *Stop,
-                           std::string &Package,std::string &Ver,unsigned int &Op,
-                           bool const &ParseArchFlags = false,
-                           bool const &StripMultiArch = true);
-   static const char *ConvertRelation(const char *I,unsigned int &Op);
-
-   debListParser(FileFd *File, std::string const &Arch = "");
-   virtual ~debListParser() {};
+   virtual bool Step() APT_OVERRIDE;
+
+   bool LoadReleaseInfo(pkgCache::RlsFileIterator &FileI,FileFd &File,
+                       std::string const &section);
+
+   APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
+        std::string &Package,std::string &Ver,unsigned int &Op);
+   APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
+        std::string &Package,std::string &Ver,unsigned int &Op,
+        bool const &ParseArchFlags);
+   APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
+        std::string &Package,std::string &Ver,unsigned int &Op,
+        bool const &ParseArchFlags, bool const &StripMultiArch);
+   APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
+        std::string &Package,std::string &Ver,unsigned int &Op,
+        bool const &ParseArchFlags, bool const &StripMultiArch,
+        bool const &ParseRestrictionsList);
+
+#ifdef APT_PKG_EXPOSE_STRING_VIEW
+   APT_HIDDEN static const char *ParseDepends(const char *Start,const char *Stop,
+        APT::StringView &Package,
+    APT::StringView &Ver,unsigned int &Op,
+        bool const ParseArchFlags = false, bool StripMultiArch = true,
+        bool const ParseRestrictionsList = false);
+#endif
+
+   APT_PUBLIC static const char *ConvertRelation(const char *I,unsigned int &Op);
+
+   debListParser(FileFd *File);
+   virtual ~debListParser();
+};
+
+class APT_HIDDEN debDebFileParser : public debListParser
+{
+ private:
+   std::string DebFile;
+
+ public:
+   debDebFileParser(FileFd *File, std::string const &DebFile);
+   virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
+                          pkgCache::VerIterator &Ver) APT_OVERRIDE;
 };
 
+class APT_HIDDEN debTranslationsParser : public debListParser
+{
+ public:
+   // a translation can never be a real package
+   virtual std::string Architecture() APT_OVERRIDE { return ""; }
+   virtual std::string Version() APT_OVERRIDE { return ""; }
+
+   debTranslationsParser(FileFd *File)
+      : debListParser(File) {};
+};
+
+class APT_HIDDEN debStatusListParser : public debListParser
+{
+ public:
+   virtual bool ParseStatus(pkgCache::PkgIterator &Pkg,pkgCache::VerIterator &Ver);
+   debStatusListParser(FileFd *File)
+      : debListParser(File) {};
+};
 #endif