47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
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#ifndef _INCLUDE_JOURNAL_H
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#define _INCLUDE_JOURNAL_H
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#include "nvault.h"
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#define JOURNAL_MAGIC 0x6E564A4C
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class Journal
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{
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public:
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enum JournalOp
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{
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Journal_Nop, //Nothing
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Journal_Name, //Maps name to Id (id,len,[])
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Journal_Store, //Stores key/val (id,time,klen,vlen,[],[])
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Journal_Erase, //Erases key (id,klen,[])
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Journal_Clear, //Clears (id)
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Journal_Prune //Prunes (id,t1,t2,all)
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};
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public:
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Journal(const char *file);
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public:
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bool Replay(size_t &files, size_t &ops);
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void ClearJournal();
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bool StartJournal();
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void EndJournal();
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public:
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void Store(const char *name, const char *key, const char *val, time_t stamp);
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void Erase(const char *name, const char *key);
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void Clear(const char *name);
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void Prune(const char *name, time_t begin, time_t end, bool all);
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private:
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void BeginOp(const char *name, JournalOp jop);
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void WriteByte(uint8_t num);
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void WriteShort(uint16_t num);
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void WriteInt(uint32_t num);
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void WriteString(const char *str);
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size_t EndOp();
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private:
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String m_File;
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FILE *m_Fp;
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HashTable m_Names;
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uint32_t m_LastId;
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};
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#endif //_INCLUDE_JOURNAL_H
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