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[apt.git] / apt-pkg / pkgcache.h

diff --git a/apt-pkg/pkgcache.h b/apt-pkg/pkgcache.h
index e44fd544cc8cba091b3fe20a5e3f40a90d61f952..91228f7133ac4196571e97ee690c568b57b92dd1 100644 (file)
--- a/apt-pkg/pkgcache.h
+++ b/apt-pkg/pkgcache.h
@@ -81,6 +81,10 @@
 #include <time.h>
 #include <stdint.h>
 
+#ifdef APT_PKG_EXPOSE_STRING_VIEW
+#include <apt-pkg/string_view.h>
+#endif
+
 #ifndef APT_8_CLEANER_HEADERS
 using std::string;
 #endif
@@ -193,7 +197,9 @@ class pkgCache                                                              /*{{{*/
    // Memory mapped cache file
    std::string CacheFile;
    MMap &Map;
-
+#ifdef APT_PKG_EXPOSE_STRING_VIEW
+   APT_HIDDEN map_id_t sHash(APT::StringView S) const APT_PURE;
+#endif
    map_id_t sHash(const std::string &S) const APT_PURE;
    map_id_t sHash(const char *S) const APT_PURE;
    
@@ -221,13 +227,34 @@ class pkgCache                                                            /*{{{*/
    inline void *DataEnd() {return ((unsigned char *)Map.Data()) + Map.Size();}
       
    // String hashing function (512 range)
+#ifdef APT_PKG_EXPOSE_STRING_VIEW
+   APT_HIDDEN inline map_id_t Hash(APT::StringView S) const {return sHash(S);}
+#endif
    inline map_id_t Hash(const std::string &S) const {return sHash(S);}
    inline map_id_t Hash(const char *S) const {return sHash(S);}
 
+   APT_HIDDEN uint32_t CacheHash();
+
    // Useful transformation things
    static const char *Priority(unsigned char Priority);
    
    // Accessors
+#ifdef APT_PKG_EXPOSE_STRING_VIEW
+   APT_HIDDEN GrpIterator FindGrp(APT::StringView Name);
+   APT_HIDDEN PkgIterator FindPkg(APT::StringView Name);
+   APT_HIDDEN PkgIterator FindPkg(APT::StringView Name, APT::StringView Arch);
+#endif
+
+#ifdef APT_PKG_EXPOSE_STRING_VIEW
+   APT::StringView ViewString(map_stringitem_t idx) const
+   {
+      char *name = StrP + idx;
+      uint16_t len = *reinterpret_cast<const uint16_t*>(name - sizeof(uint16_t));
+      return APT::StringView(name, len);
+   }
+#endif
+
+
    GrpIterator FindGrp(const std::string &Name);
    PkgIterator FindPkg(const std::string &Name);
    PkgIterator FindPkg(const std::string &Name, const std::string &Arch);
@@ -364,7 +391,7 @@ struct pkgCache::Header
    map_pointer_t * PkgHashTableP() const { return (map_pointer_t*) (this + 1); }
    map_pointer_t * GrpHashTableP() const { return PkgHashTableP() + GetHashTableSize(); }
 
-   /** \brief Size of the complete cache file */
+   /** \brief Hash of the file (TODO: Rename) */
    map_filesize_small_t CacheFileSize;
 
    bool CheckSizes(Header &Against) const APT_PURE;