// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: cachedb.h,v 1.3 2002/11/22 07:19:51 doogie Exp $
+// $Id: cachedb.h,v 1.4 2004/05/08 19:41:01 mdz Exp $
/* ######################################################################
CacheDB
#ifndef CACHEDB_H
#define CACHEDB_H
-#ifdef __GNUG__
-#pragma interface "cachedb.h"
-#endif
-
-#include <db2/db.h>
-#include <string>
+#include <apt-pkg/hashes.h>
#include <apt-pkg/debfile.h>
-#include <inttypes.h>
-#include <sys/stat.h>
+
+#include <db.h>
#include <errno.h>
-
+#include <string>
+#include <string.h>
+#include <stdint.h>
+#include <stdio.h>
+
#include "contents.h"
-
+#include "sources.h"
+
+class FileFd;
+
+
class CacheDB
{
protected:
DB *Dbp;
bool DBLoaded;
bool ReadOnly;
- string DBFile;
+ std::string DBFile;
// Generate a key for the DB of a given type
- inline void InitQuery(const char *Type)
+ void _InitQuery(const char *Type)
{
memset(&Key,0,sizeof(Key));
memset(&Data,0,sizeof(Data));
Key.data = TmpKey;
- Key.size = snprintf(TmpKey,sizeof(TmpKey),"%s:%s",Type,FileName.c_str());
+ Key.size = snprintf(TmpKey,sizeof(TmpKey),"%s:%s",FileName.c_str(), Type);
}
+ void InitQueryStats() {
+ _InitQuery("st");
+ }
+ void InitQuerySource() {
+ _InitQuery("cs");
+ }
+ void InitQueryControl() {
+ _InitQuery("cl");
+ }
+ void InitQueryContent() {
+ _InitQuery("cn");
+ }
+
inline bool Get()
{
return Dbp->get(Dbp,0,&Key,&Data,0) == 0;
};
- inline bool Put(const void *In,unsigned long Length)
+ inline bool Put(const void *In,unsigned long const &Length)
{
if (ReadOnly == true)
return true;
}
return true;
}
-
+ bool OpenFile();
+ void CloseFile();
+
+ bool OpenDebFile();
+ void CloseDebFile();
+
+ // GetCurStat needs some compat code, see lp #1274466)
+ bool GetCurStatCompatOldFormat();
+ bool GetCurStatCompatNewFormat();
+ bool GetCurStat();
+
+ bool GetFileStat(bool const &doStat = false);
+ bool LoadControl();
+ bool LoadContents(bool const &GenOnly);
+ bool LoadSource();
+ bool GetHashes(bool const GenOnly, unsigned int const DoHashes);
+
// Stat info stored in the DB, Fixed types since it is written to disk.
- enum FlagList {FlControl = (1<<0),FlMD5=(1<<1),FlContents=(1<<2)};
+ enum FlagList {FlControl = (1<<0),FlMD5=(1<<1),FlContents=(1<<2),
+ FlSize=(1<<3), FlSHA1=(1<<4), FlSHA256=(1<<5),
+ FlSHA512=(1<<6), FlSource=(1<<7)
+ };
+
+ // the on-disk format changed (FileSize increased to 64bit) in
+ // commit 650faab0 which will lead to corruption with old caches
+ struct StatStoreOldFormat
+ {
+ uint32_t Flags;
+ uint32_t mtime;
+ uint32_t FileSize;
+ uint8_t MD5[16];
+ uint8_t SHA1[20];
+ uint8_t SHA256[32];
+ } CurStatOldFormat;
+
+ // WARNING: this struct is read/written to the DB so do not change the
+ // layout of the fields (see lp #1274466), only append to it
struct StatStore
{
- uint32_t mtime;
uint32_t Flags;
+ uint32_t mtime;
+ uint64_t FileSize;
+ uint8_t MD5[16];
+ uint8_t SHA1[20];
+ uint8_t SHA256[32];
+ uint8_t SHA512[64];
} CurStat;
struct StatStore OldStat;
// 'set' state
- string FileName;
- struct stat FileStat;
+ std::string FileName;
FileFd *Fd;
debDebFile *DebFile;
// Data collection helpers
debDebFile::MemControlExtract Control;
ContentsExtract Contents;
-
+ DscExtract Dsc;
+ HashStringList HashesList;
+
// Runtime statistics
struct Stats
{
double Bytes;
double MD5Bytes;
+ double SHA1Bytes;
+ double SHA256Bytes;
+ double SHA512Bytes;
unsigned long Packages;
unsigned long Misses;
- unsigned long DeLinkBytes;
+ unsigned long long DeLinkBytes;
- inline void Add(const Stats &S) {Bytes += S.Bytes; MD5Bytes += S.MD5Bytes;
- Packages += S.Packages; Misses += S.Misses; DeLinkBytes += S.DeLinkBytes;};
- Stats() : Bytes(0), MD5Bytes(0), Packages(0), Misses(0), DeLinkBytes(0) {};
+ inline void Add(const Stats &S) {
+ Bytes += S.Bytes;
+ MD5Bytes += S.MD5Bytes;
+ SHA1Bytes += S.SHA1Bytes;
+ SHA256Bytes += S.SHA256Bytes;
+ SHA512Bytes += S.SHA512Bytes;
+ Packages += S.Packages;
+ Misses += S.Misses;
+ DeLinkBytes += S.DeLinkBytes;
+ };
+ Stats() : Bytes(0), MD5Bytes(0), SHA1Bytes(0), SHA256Bytes(0),
+ SHA512Bytes(0),Packages(0), Misses(0), DeLinkBytes(0) {};
} Stats;
- bool ReadyDB(string DB);
+ bool ReadyDB(std::string const &DB = "");
inline bool DBFailed() {return Dbp != 0 && DBLoaded == false;};
inline bool Loaded() {return DBLoaded == true;};
- bool SetFile(string FileName,struct stat St,FileFd *Fd);
- bool LoadControl();
- bool LoadContents(bool GenOnly);
- bool GetMD5(string &MD5Res,bool GenOnly);
+ inline unsigned long long GetFileSize(void) {return CurStat.FileSize;}
+
+ bool SetFile(std::string const &FileName,struct stat St,FileFd *Fd);
+
+ // terrible old overloaded interface
+ bool GetFileInfo(std::string const &FileName,
+ bool const &DoControl,
+ bool const &DoContents,
+ bool const &GenContentsOnly,
+ bool const DoSource,
+ unsigned int const DoHashes,
+ bool const &checkMtime = false);
+
bool Finish();
bool Clean();
- CacheDB(string DB) : Dbp(0), DebFile(0) {ReadyDB(DB);};
- ~CacheDB() {ReadyDB(string()); delete DebFile;};
+ explicit CacheDB(std::string const &DB);
+ ~CacheDB();
};
#endif
projects / apt.git / blobdiff