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This commit is contained in:
Jean-Francois Dockes 2016-04-12 10:04:48 +02:00
parent d70b3cb4d2
commit c06eb296c1
2 changed files with 610 additions and 554 deletions
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1002
src/utils/circache.cpp
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42
src/utils/circache.h
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@ -40,26 +40,23 @@
#include <string> #include <string>
#ifndef NO_NAMESPACES
using std::string;
#endif
class ConfSimple; class ConfSimple;
class CirCacheInternal; class CirCacheInternal;
class CirCache { class CirCache {
public: public:
CirCache(const string& dir); CirCache(const std::string& dir);
virtual ~CirCache(); virtual ~CirCache();
virtual string getReason(); virtual std::string getReason();
enum CreateFlags {CC_CRNONE=0, enum CreateFlags {CC_CRNONE = 0,
// Unique entries: erase older instances when same udi // Unique entries: erase older instances when same udi
// is stored. // is stored.
CC_CRUNIQUE=1, CC_CRUNIQUE = 1,
// Truncate file (restart from scratch). // Truncate file (restart from scratch).
CC_CRTRUNCATE = 2}; CC_CRTRUNCATE = 2
};
virtual bool create(off_t maxsize, int flags); virtual bool create(off_t maxsize, int flags);
enum OpMode {CC_OPREAD, CC_OPWRITE}; enum OpMode {CC_OPREAD, CC_OPWRITE};
@ -67,15 +64,15 @@ public:
virtual std::string getpath(); virtual std::string getpath();
virtual bool get(const string& udi, string& dic, string& data, virtual bool get(const std::string& udi, std::string& dic,
int instance = -1); std::string& data, int instance = -1);
// Note: the dicp MUST have an udi entry // Note: the dicp MUST have an udi entry
enum PutFlags {NoCompHint = 1}; enum PutFlags {NoCompHint = 1};
virtual bool put(const string& udi, const ConfSimple *dicp, virtual bool put(const std::string& udi, const ConfSimple *dicp,
const string& data, unsigned int flags = 0); const std::string& data, unsigned int flags = 0);
virtual bool erase(const string& udi); virtual bool erase(const std::string& udi);
/** Walk the archive. /** Walk the archive.
* *
@ -86,10 +83,11 @@ public:
/** Back to oldest */ /** Back to oldest */
virtual bool rewind(bool& eof); virtual bool rewind(bool& eof);
/** Get entry under cursor */ /** Get entry under cursor */
virtual bool getCurrent(string& udi, string& dic, string& data); virtual bool getCurrent(std::string& udi, std::string& dic,
std::string& data);
/** Get current entry udi only. Udi can be empty (erased empty), caller /** Get current entry udi only. Udi can be empty (erased empty), caller
* should call again */ * should call again */
virtual bool getCurrentUdi(string& udi); virtual bool getCurrentUdi(std::string& udi);
/** Skip to next. (false && !eof) -> error, (false&&eof)->EOF. */ /** Skip to next. (false && !eof) -> error, (false&&eof)->EOF. */
virtual bool next(bool& eof); virtual bool next(bool& eof);
@ -98,10 +96,12 @@ public:
protected: protected:
CirCacheInternal *m_d; CirCacheInternal *m_d;
string m_dir; std::string m_dir;
private: private:
CirCache(const CirCache&) {} CirCache(const CirCache&) {}
CirCache& operator=(const CirCache&) {return *this;} CirCache& operator=(const CirCache&) {
return *this;
}
}; };
#endif /* _circache_h_included_ */ #endif /* _circache_h_included_ */