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| author | Mike Buland <eichlan@xagasoft.com> | 2013-03-17 23:45:21 +0000 |
|---|---|---|
| committer | Mike Buland <eichlan@xagasoft.com> | 2013-03-17 23:45:21 +0000 |
| commit | fb5176bbd5355b02b7d0e65da3ef3f0105824cd0 (patch) | |
| tree | 32a9d8114ce4852b901a35f6aec982e6071a3bac /src/experimental/cachestoremyriad.h | |
| parent | a6d249cad214dc0baff0e80e56ffdec91d8a1cf0 (diff) | |
| download | libbu++-fb5176bbd5355b02b7d0e65da3ef3f0105824cd0.tar.gz libbu++-fb5176bbd5355b02b7d0e65da3ef3f0105824cd0.tar.bz2 libbu++-fb5176bbd5355b02b7d0e65da3ef3f0105824cd0.tar.xz libbu++-fb5176bbd5355b02b7d0e65da3ef3f0105824cd0.zip | |
The new cache system has been broken out into it's individual headers, and is
now ready for actual use.
Diffstat (limited to '')
| -rw-r--r-- | src/experimental/cachestoremyriad.h | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/src/experimental/cachestoremyriad.h b/src/experimental/cachestoremyriad.h deleted file mode 100644 index 798d205..0000000 --- a/src/experimental/cachestoremyriad.h +++ /dev/null | |||
| @@ -1,158 +0,0 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (C) 2007-2013 Xagasoft, All rights reserved. | ||
| 3 | * | ||
| 4 | * This file is part of the libbu++ library and is released under the | ||
| 5 | * terms of the license contained in the file LICENSE. | ||
| 6 | */ | ||
| 7 | |||
| 8 | #ifndef BU_CACHE_STORE_MYRIAD_H | ||
| 9 | #define BU_CACHE_STORE_MYRIAD_H | ||
| 10 | |||
| 11 | #include "bu/string.h" | ||
| 12 | #include "bu/stream.h" | ||
| 13 | #include "bu/myriad.h" | ||
| 14 | #include "bu/cachestore.h" | ||
| 15 | #include "bu/myriadstream.h" | ||
| 16 | |||
| 17 | #include "bu/archive.h" | ||
| 18 | |||
| 19 | namespace Bu | ||
| 20 | { | ||
| 21 | template<class keytype, class obtype> | ||
| 22 | keytype __cacheGetKey( const obtype *pObj ); | ||
| 23 | |||
| 24 | template<class keytype, class obtype> | ||
| 25 | obtype *__cacheStoreMyriadAlloc( const keytype &key ) | ||
| 26 | { | ||
| 27 | return new obtype(); | ||
| 28 | } | ||
| 29 | |||
| 30 | template<class keytype, class obtype> | ||
| 31 | void __cacheStoreMyriadStore( Bu::Stream &s, obtype &rObj, | ||
| 32 | const keytype & ) | ||
| 33 | { | ||
| 34 | Bu::Archive ar( s, Bu::Archive::save ); | ||
| 35 | ar << rObj; | ||
| 36 | } | ||
| 37 | |||
| 38 | template<class keytype, class obtype> | ||
| 39 | obtype *__cacheStoreMyriadLoad( Bu::Stream &s, const keytype &key ) | ||
| 40 | { | ||
| 41 | obtype *pObj = __cacheStoreMyriadAlloc<keytype, obtype>( key ); | ||
| 42 | Bu::Archive ar( s, Bu::Archive::load ); | ||
| 43 | ar >> (*pObj); | ||
| 44 | return pObj; | ||
| 45 | } | ||
| 46 | |||
| 47 | template<class keytype, class obtype> | ||
| 48 | class CacheStoreMyriad : public CacheStore<keytype, obtype> | ||
| 49 | { | ||
| 50 | public: | ||
| 51 | CacheStoreMyriad( Bu::Stream &sArch, | ||
| 52 | int iBlockSize=512, int iPreAllocate=8 ) : | ||
| 53 | mStore( sArch, iBlockSize, iPreAllocate ) | ||
| 54 | { | ||
| 55 | try | ||
| 56 | { | ||
| 57 | MyriadStream ns = mStore.openStream( 1 ); | ||
| 58 | Bu::Archive ar( ns, Bu::Archive::load ); | ||
| 59 | ar >> hId; | ||
| 60 | } | ||
| 61 | catch( Bu::MyriadException &e ) | ||
| 62 | { | ||
| 63 | int iStream = mStore.createStream(); | ||
| 64 | if( iStream != 1 ) | ||
| 65 | throw Bu::ExceptionBase("That's...horrible...id = %d.\n\n", | ||
| 66 | iStream ); | ||
| 67 | MyriadStream ns = mStore.openStream( 1 ); | ||
| 68 | Bu::Archive ar( ns, Bu::Archive::save ); | ||
| 69 | ar << hId; | ||
| 70 | } | ||
| 71 | } | ||
| 72 | |||
| 73 | virtual ~CacheStoreMyriad() | ||
| 74 | { | ||
| 75 | MyriadStream ns = mStore.openStream( 1 ); | ||
| 76 | Bu::Archive ar( ns, Bu::Archive::save ); | ||
| 77 | ar << hId; | ||
| 78 | } | ||
| 79 | |||
| 80 | virtual obtype *load( const keytype &key ) | ||
| 81 | { | ||
| 82 | int iStream = hId.get( key ); | ||
| 83 | MyriadStream ns = mStore.openStream( iStream ); | ||
| 84 | obtype *pOb = __cacheStoreMyriadLoad<keytype, obtype>( ns, key ); | ||
| 85 | return pOb; | ||
| 86 | } | ||
| 87 | |||
| 88 | virtual void unload( obtype *pObj, const keytype & ) | ||
| 89 | { | ||
| 90 | delete pObj; | ||
| 91 | } | ||
| 92 | |||
| 93 | virtual keytype create( obtype *pSrc ) | ||
| 94 | { | ||
| 95 | keytype key = __cacheGetKey<keytype, obtype>( pSrc ); | ||
| 96 | int iStream = mStore.createStream(); | ||
| 97 | hId.insert( key, iStream ); | ||
| 98 | MyriadStream ns = mStore.openStream( iStream ); | ||
| 99 | __cacheStoreMyriadStore<keytype, obtype>( ns, *pSrc, key ); | ||
| 100 | ns.setSize( ns.tell() ); | ||
| 101 | return key; | ||
| 102 | } | ||
| 103 | |||
| 104 | virtual void sync() | ||
| 105 | { | ||
| 106 | MyriadStream ns = mStore.openStream( 1 ); | ||
| 107 | Bu::Archive ar( ns, Bu::Archive::save ); | ||
| 108 | ar << hId; | ||
| 109 | ns.setSize( ns.tell() ); | ||
| 110 | mStore.sync(); | ||
| 111 | } | ||
| 112 | |||
| 113 | virtual void sync( obtype *pSrc, const keytype &key ) | ||
| 114 | { | ||
| 115 | int iStream = hId.get( key ); | ||
| 116 | MyriadStream ns = mStore.openStream( iStream ); | ||
| 117 | __cacheStoreMyriadStore<keytype, obtype>( ns, *pSrc, key ); | ||
| 118 | ns.setSize( ns.tell() ); | ||
| 119 | } | ||
| 120 | |||
| 121 | virtual void destroy( obtype *pObj, const keytype &key ) | ||
| 122 | { | ||
| 123 | int iStream = hId.get( key ); | ||
| 124 | mStore.deleteStream( iStream ); | ||
| 125 | hId.erase( key ); | ||
| 126 | delete pObj; | ||
| 127 | } | ||
| 128 | |||
| 129 | virtual void destroy( const keytype &key ) | ||
| 130 | { | ||
| 131 | int iStream = hId.get( key ); | ||
| 132 | mStore.deleteStream( iStream ); | ||
| 133 | hId.erase( key ); | ||
| 134 | } | ||
| 135 | |||
| 136 | virtual bool has( const keytype &key ) | ||
| 137 | { | ||
| 138 | return hId.has( key ); | ||
| 139 | } | ||
| 140 | |||
| 141 | virtual Bu::List<keytype> getKeys() | ||
| 142 | { | ||
| 143 | return hId.getKeys(); | ||
| 144 | } | ||
| 145 | |||
| 146 | virtual int getSize() | ||
| 147 | { | ||
| 148 | return hId.getSize(); | ||
| 149 | } | ||
| 150 | |||
| 151 | private: | ||
| 152 | Myriad mStore; | ||
| 153 | typedef Bu::Hash<keytype, long> StreamHash; | ||
| 154 | StreamHash hId; | ||
| 155 | }; | ||
| 156 | }; | ||
| 157 | |||
| 158 | #endif | ||
