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-rw-r--r--src/cache.cpp1
-rw-r--r--src/cache.h58
-rw-r--r--src/cachestore.h6
-rw-r--r--src/cptr.h11
-rw-r--r--src/tests/cache.cpp125
-rw-r--r--src/trace.cpp12
-rw-r--r--src/trace.h37
7 files changed, 198 insertions, 52 deletions
diff --git a/src/cache.cpp b/src/cache.cpp
index e69de29..fd1082b 100644
--- a/src/cache.cpp
+++ b/src/cache.cpp
@@ -0,0 +1 @@
#include "bu/cache.h"
diff --git a/src/cache.h b/src/cache.h
index 0c3994c..9488044 100644
--- a/src/cache.h
+++ b/src/cache.h
@@ -38,6 +38,20 @@ namespace Bu
38 virtual ~Cache() 38 virtual ~Cache()
39 { 39 {
40 TRACE(); 40 TRACE();
41 for( typename CidHash::iterator i = hEnt.begin();
42 i != hEnt.end(); i++ )
43 {
44 if( i.getValue().iRefs > 0 )
45 {
46 printf("Error? iRefs=%d for key ", i.getValue().iRefs );
47 __tracer_format( i.getKey() );
48 printf("!\n");
49 }
50 lStore.first()->unload(
51 i.getValue().pData,
52 i.getKey()
53 );
54 }
41 for( typename StoreList::iterator i = lStore.begin(); 55 for( typename StoreList::iterator i = lStore.begin();
42 i != lStore.end(); i++ ) 56 i != lStore.end(); i++ )
43 { 57 {
@@ -47,44 +61,72 @@ namespace Bu
47 61
48 void appendStore( Store *pHand ) 62 void appendStore( Store *pHand )
49 { 63 {
64 TRACE();
50 lStore.append( pHand ); 65 lStore.append( pHand );
51 } 66 }
52 67
53 void prependStore( Store *pHand ) 68 void prependStore( Store *pHand )
54 { 69 {
70 TRACE();
55 lStore.prepend( pHand ); 71 lStore.prepend( pHand );
56 } 72 }
57 73
58 Ptr insert( obtype *pData ) 74 Ptr insert( obtype *pData )
59 { 75 {
60 TRACE(); 76 TRACE( pData );
61 CacheEntry e = {pData, 0}; 77 CacheEntry e = {pData, 0};
62 hEnt.insert( 0 , e ); 78 keytype k = lStore.first()->create( pData );
63 return Ptr( *this, pData ); 79 hEnt.insert( k, e );
80
81 return Ptr( *this, pData, k );
64 } 82 }
65 83
66 Ptr get( keytype cId ) 84 Ptr get( keytype cId )
67 { 85 {
68 TRACE(); 86 TRACE( cId );
69 return Ptr( *this, hEnt.get( cId ).pData ); 87 try {
88 return Ptr( *this, hEnt.get( cId ).pData, cId );
89 }
90 catch( Bu::HashException &e ) {
91 CacheEntry e = {lStore.first()->load( cId ), 0};
92 hEnt.insert( cId, e );
93 return Ptr( *this, e.pData, cId );
94 }
95 }
96
97 void erase( keytype cId )
98 {
99 TRACE( cId );
100 try {
101 if( hEnt.get( cId ).iRefs > 0 )
102 {
103 printf("Shouldn't delete, references still exist!\n");
104 return;
105 }
106 }
107 catch( Bu::HashException &e ) {
108 get( cId );
109 }
110 lStore.first()->destroy( hEnt.get( cId ).pData, cId );
111 hEnt.erase( cId );
70 } 112 }
71 113
72 int getRefCnt( keytype cId ) 114 int getRefCnt( keytype cId )
73 { 115 {
74 TRACE(); 116 TRACE( cId );
75 return hEnt.get( cId ).iRefs; 117 return hEnt.get( cId ).iRefs;
76 } 118 }
77 119
78 private: 120 private:
79 void incRef( keytype cId ) 121 void incRef( keytype cId )
80 { 122 {
81 TRACE(); 123 TRACE( cId );
82 hEnt.get( cId ).iRefs++; 124 hEnt.get( cId ).iRefs++;
83 } 125 }
84 126
85 void decRef( keytype cId ) 127 void decRef( keytype cId )
86 { 128 {
87 TRACE(); 129 TRACE( cId );
88 CacheEntry &e = hEnt.get( cId ); 130 CacheEntry &e = hEnt.get( cId );
89 e.iRefs--; 131 e.iRefs--;
90 } 132 }
diff --git a/src/cachestore.h b/src/cachestore.h
index 3211b6a..5b52359 100644
--- a/src/cachestore.h
+++ b/src/cachestore.h
@@ -1,8 +1,6 @@
1#ifndef BU_CACHE_STORE_H 1#ifndef BU_CACHE_STORE_H
2#define BU_CACHE_STORE_H 2#define BU_CACHE_STORE_H
3 3
4#include "bu/cptr.h"
5
6namespace Bu 4namespace Bu
7{ 5{
8 /** 6 /**
@@ -21,10 +19,8 @@ namespace Bu
21 { 19 {
22 } 20 }
23 21
24 typedef Bu::CPtr<obtype, keytype> Ptr;
25
26 virtual obtype *load( const keytype &key )=0; 22 virtual obtype *load( const keytype &key )=0;
27 virtual void unload( obtype *pObj )=0; 23 virtual void unload( obtype *pObj, const keytype &key )=0;
28 virtual keytype create( obtype *pSrc )=0; 24 virtual keytype create( obtype *pSrc )=0;
29 virtual void destroy( obtype *pObj, const keytype &key )=0; 25 virtual void destroy( obtype *pObj, const keytype &key )=0;
30 26
diff --git a/src/cptr.h b/src/cptr.h
index 8f35a03..97f5e17 100644
--- a/src/cptr.h
+++ b/src/cptr.h
@@ -15,9 +15,11 @@ namespace Bu
15 { 15 {
16 friend class Bu::Cache<obtype, keytype>; 16 friend class Bu::Cache<obtype, keytype>;
17 private: 17 private:
18 CPtr( Cache<obtype, keytype> &rCache, obtype *pData ) : 18 CPtr( Cache<obtype, keytype> &rCache, obtype *pData,
19 const keytype &kId ) :
19 rCache( rCache ), 20 rCache( rCache ),
20 pData( pData ) 21 pData( pData ),
22 kId( kId )
21 { 23 {
22 rCache.incRef( kId ); 24 rCache.incRef( kId );
23 } 25 }
@@ -38,6 +40,11 @@ namespace Bu
38 return pData; 40 return pData;
39 } 41 }
40 42
43 const keytype &getKey()
44 {
45 return kId;
46 }
47
41 private: 48 private:
42 Bu::Cache<obtype, keytype> &rCache; 49 Bu::Cache<obtype, keytype> &rCache;
43 obtype *pData; 50 obtype *pData;
diff --git a/src/tests/cache.cpp b/src/tests/cache.cpp
index 1cc008a..18e6a95 100644
--- a/src/tests/cache.cpp
+++ b/src/tests/cache.cpp
@@ -1,9 +1,12 @@
1#include <stdio.h> 1#include <stdio.h>
2#include <stdlib.h>
2#include <sys/stat.h> 3#include <sys/stat.h>
3#include <sys/types.h> 4#include <sys/types.h>
4#include <errno.h> 5#include <errno.h>
5 6
6#include "bu/cache.h" 7#include "bu/cache.h"
8#include "bu/file.h"
9#include "bu/fstring.h"
7 10
8class Bob 11class Bob
9{ 12{
@@ -13,6 +16,12 @@ public:
13 TRACE(); 16 TRACE();
14 } 17 }
15 18
19 Bob( int i ) :
20 iInt( i )
21 {
22 TRACE( i );
23 }
24
16 virtual ~Bob() 25 virtual ~Bob()
17 { 26 {
18 TRACE(); 27 TRACE();
@@ -20,7 +29,7 @@ public:
20 29
21 void setInt( int i ) 30 void setInt( int i )
22 { 31 {
23 TRACE(); 32 TRACE( i );
24 iInt = i; 33 iInt = i;
25 } 34 }
26 35
@@ -29,15 +38,17 @@ public:
29 return iInt; 38 return iInt;
30 } 39 }
31 40
32 long getCacheId() const
33 {
34 TRACE();
35 return 0;
36 }
37
38 int iInt; 41 int iInt;
39}; 42};
40 43
44namespace Bu {
45 template<>
46 void __tracer_format<Bob*>( Bob* const &c )
47 {
48 printf("%08X=%d", (uint32_t)c, c->getInt() );
49 }
50}
51
41class BobStore : public Bu::CacheStore<Bob, long> 52class BobStore : public Bu::CacheStore<Bob, long>
42{ 53{
43public: 54public:
@@ -45,34 +56,79 @@ public:
45 cLastId( 0 ) 56 cLastId( 0 )
46 { 57 {
47 TRACE(); 58 TRACE();
59 if( access( "bobcache/last", R_OK|W_OK ) )
60 {
61 mkdir("bobcache", 0755 );
62 Bu::File f("bobcache/last", Bu::File::Write|Bu::File::Create );
63 f.write("0", 1);
64 printf("Initializing cache: %s\n", strerror( errno ) );
65 }
66 else
67 {
68 cLastId = readNum("bobcache/last");
69 }
48 } 70 }
49 71
50 ~BobStore() 72 ~BobStore()
51 { 73 {
52 TRACE(); 74 TRACE();
75 writeNum("bobcache/last", cLastId );
76 }
77
78 long readNum( const Bu::FString &sFile )
79 {
80 TRACE( sFile );
81 Bu::File f( sFile, Bu::File::Read );
82 char buf[80];
83 buf[f.read( buf, 80 )] = '\0';
84 return strtol( buf, NULL, 0 );
85 }
86
87 void writeNum( const Bu::FString &sFile, long num )
88 {
89 TRACE( sFile, num );
90 Bu::File f( sFile,
91 Bu::File::Write|Bu::File::Create|Bu::File::Truncate
92 );
93 Bu::FString s;
94 s.format("%d", num );
95 f.write( s );
53 } 96 }
54 97
55 virtual Bob *load( const long &key ) 98 virtual Bob *load( const long &key )
56 { 99 {
57 TRACE(); 100 TRACE( key );
58 return NULL; 101 Bu::FString sDest;
102 sDest.format("bobcache/%d", key );
103 return new Bob( readNum( sDest ) );
59 } 104 }
60 105
61 virtual void unload( Bob *pObj ) 106 virtual void unload( Bob *pObj, const long &key )
62 { 107 {
63 TRACE(); 108 TRACE( pObj, key );
109 Bu::FString sDest;
110 sDest.format("bobcache/%d", key );
111 writeNum( sDest, pObj->getInt() );
64 delete pObj; 112 delete pObj;
65 } 113 }
66 114
67 virtual long create( Bob *rSrc ) 115 virtual long create( Bob *rSrc )
68 { 116 {
69 TRACE(); 117 TRACE( rSrc );
70 return ++cLastId; 118 long id = ++cLastId;
119 Bu::FString sDest;
120 sDest.format("bobcache/%d", id );
121 writeNum( sDest, rSrc->getInt() );
122 return id;
71 } 123 }
72 124
73 virtual void destroy( Bob *pObj, const long &key ) 125 virtual void destroy( Bob *pObj, const long &key )
74 { 126 {
75 TRACE(); 127 TRACE( pObj, key );
128 Bu::FString sDest;
129 sDest.format("bobcache/%d", key );
130 if( !access( sDest.getStr(), F_OK ) )
131 unlink( sDest.getStr() );
76 delete pObj; 132 delete pObj;
77 } 133 }
78 134
@@ -82,28 +138,47 @@ private:
82 138
83int main( int argc, char *argv[] ) 139int main( int argc, char *argv[] )
84{ 140{
85 TRACE(); 141 TRACE( argc, argv );
142 typedef Bu::Cache<Bob, long> BobCache;
143 typedef BobCache::Ptr BobPtr;
144
86 if( argc < 3 ) 145 if( argc < 3 )
87 { 146 {
88 printf("Try: %s [icufd] [<id/value>]\n\n", argv[0] ); 147 printf("Try: %s [crud] [<id/value>]\n\n", argv[0] );
89 return 0; 148 return 0;
90 } 149 }
91 150
151 BobCache cBob;
152 cBob.appendStore( new BobStore() );
92 switch( argv[1][0] ) 153 switch( argv[1][0] )
93 { 154 {
94 case 'i':
95 mkdir("bobcache", 0755 );
96 printf("Initialized cache: %s\n", strerror( errno ) );
97 return 0;
98
99 case 'c': 155 case 'c':
100 typedef Bu::Cache<Bob, long> BobCache; 156 {
101 typedef BobCache::Ptr BobPtr; 157 BobCache::Ptr pBob = cBob.insert(
158 new Bob( strtol( argv[2], NULL, 0 ) )
159 );
160 printf("Key = %ld\n", pBob.getKey() );
161 }
162 return 0;
102 163
103 BobCache cBob; 164 case 'r':
165 {
166 BobCache::Ptr pBob = cBob.get( strtol( argv[2], NULL, 0 ) );
167 printf("Value = %d\n", pBob->getInt() );
168 }
169 return 0;
104 170
105 cBob.appendStore( new BobStore() ); 171 case 'u':
172 {
173 BobCache::Ptr pBob = cBob.get( strtol( argv[2], NULL, 0 ) );
174 pBob->setInt( strtol( argv[3], NULL, 0 ) );
175 }
176 return 0;
106 177
178 case 'd':
179 {
180 cBob.erase( strtol( argv[2], NULL, 0 ) );
181 }
107 return 0; 182 return 0;
108 } 183 }
109 184
diff --git a/src/trace.cpp b/src/trace.cpp
index dab53d6..242d110 100644
--- a/src/trace.cpp
+++ b/src/trace.cpp
@@ -58,7 +58,7 @@ template<> void Bu::__tracer_format<char>( const char &v )
58{ 58{
59 printf("%hhd", v ); 59 printf("%hhd", v );
60} 60}
61/* 61
62template<> void Bu::__tracer_format<long>( const long &v ) 62template<> void Bu::__tracer_format<long>( const long &v )
63{ 63{
64 printf("%ld", v ); 64 printf("%ld", v );
@@ -67,7 +67,7 @@ template<> void Bu::__tracer_format<long>( const long &v )
67template<> void Bu::__tracer_format<unsigned long>( const unsigned long &v ) 67template<> void Bu::__tracer_format<unsigned long>( const unsigned long &v )
68{ 68{
69 printf("%lu", v ); 69 printf("%lu", v );
70}*/ 70}
71 71
72template<> void Bu::__tracer_format<float>( const float &v ) 72template<> void Bu::__tracer_format<float>( const float &v )
73{ 73{
@@ -93,7 +93,11 @@ template<> void Bu::__tracer_format<char **>( char ** const &v )
93{ 93{
94 printf("["); 94 printf("[");
95 for( int j = 0; v[j]; j++ ) 95 for( int j = 0; v[j]; j++ )
96 {
97 if( j > 0 )
98 printf(", ");
96 printf("\"%s\"", v[j] ); 99 printf("\"%s\"", v[j] );
100 }
97 printf("]"); 101 printf("]");
98} 102}
99 103
@@ -111,6 +115,10 @@ template<> void Bu::__tracer_format<char const **>( char const ** const &v )
111{ 115{
112 printf("["); 116 printf("[");
113 for( int j = 0; v[j]; j++ ) 117 for( int j = 0; v[j]; j++ )
118 {
119 if( j > 0 )
120 printf(", ");
114 printf("\"%s\"", v[j] ); 121 printf("\"%s\"", v[j] );
122 }
115 printf("]"); 123 printf("]");
116} 124}
diff --git a/src/trace.h b/src/trace.h
index 82399c2..049d138 100644
--- a/src/trace.h
+++ b/src/trace.h
@@ -11,6 +11,7 @@
11#include <stdio.h> 11#include <stdio.h>
12#include <stdint.h> 12#include <stdint.h>
13#include <stddef.h> 13#include <stddef.h>
14#include <string.h>
14 15
15namespace Bu 16namespace Bu
16{ 17{
@@ -26,7 +27,12 @@ namespace Bu
26 #define looper( vv ) \ 27 #define looper( vv ) \
27 for( ; *n; n++ ) \ 28 for( ; *n; n++ ) \
28 { \ 29 { \
29 if( *n == ',' || *n == ')' ) \ 30 if( bInBracket == true ) \
31 { \
32 if( *n == '>' ) \
33 bInBracket = false; \
34 } \
35 else if( *n == ',' || *n == ')' ) \
30 { \ 36 { \
31 fwrite( s, (ptrdiff_t)n-(ptrdiff_t)s, 1, stdout ); \ 37 fwrite( s, (ptrdiff_t)n-(ptrdiff_t)s, 1, stdout ); \
32 fwrite("=", 1, 1, stdout); \ 38 fwrite("=", 1, 1, stdout); \
@@ -35,6 +41,10 @@ namespace Bu
35 n++; \ 41 n++; \
36 break; \ 42 break; \
37 } \ 43 } \
44 else if( *n == '<' ) \
45 { \
46 bInBracket = true; \
47 } \
38 } (void)0 48 } (void)0
39 49
40 template<typename t1> void __tracer( const char *pf, t1 &v1 ) 50 template<typename t1> void __tracer( const char *pf, t1 &v1 )
@@ -42,8 +52,9 @@ namespace Bu
42 printf("trace: "); 52 printf("trace: ");
43 const char *s = pf; 53 const char *s = pf;
44 const char *n = pf; 54 const char *n = pf;
55 bool bInBracket = false;
45 looper( v1 ); 56 looper( v1 );
46 fwrite( s, (ptrdiff_t)n-(ptrdiff_t)s, 1, stdout ); 57 fwrite( s, (ptrdiff_t)n-(ptrdiff_t)s, strlen(s), stdout );
47 fwrite( "\n", 1, 1, stdout ); 58 fwrite( "\n", 1, 1, stdout );
48 fflush( stdout ); 59 fflush( stdout );
49 } 60 }
@@ -54,9 +65,10 @@ namespace Bu
54 printf("trace: "); 65 printf("trace: ");
55 const char *s = pf; 66 const char *s = pf;
56 const char *n = pf; 67 const char *n = pf;
68 bool bInBracket = false;
57 looper( v1 ); 69 looper( v1 );
58 looper( v2 ); 70 looper( v2 );
59 fwrite( s, (ptrdiff_t)n-(ptrdiff_t)s, 1, stdout ); 71 fwrite( s, (ptrdiff_t)n-(ptrdiff_t)s, strlen(s), stdout );
60 fwrite( "\n", 1, 1, stdout ); 72 fwrite( "\n", 1, 1, stdout );
61 fflush( stdout ); 73 fflush( stdout );
62 } 74 }
@@ -67,10 +79,11 @@ namespace Bu
67 printf("trace: "); 79 printf("trace: ");
68 const char *s = pf; 80 const char *s = pf;
69 const char *n = pf; 81 const char *n = pf;
82 bool bInBracket = false;
70 looper( v1 ); 83 looper( v1 );
71 looper( v2 ); 84 looper( v2 );
72 looper( v3 ); 85 looper( v3 );
73 fwrite( s, (ptrdiff_t)n-(ptrdiff_t)s, 1, stdout ); 86 fwrite( s, (ptrdiff_t)n-(ptrdiff_t)s, strlen(s), stdout );
74 fwrite( "\n", 1, 1, stdout ); 87 fwrite( "\n", 1, 1, stdout );
75 fflush( stdout ); 88 fflush( stdout );
76 } 89 }
@@ -81,11 +94,12 @@ namespace Bu
81 printf("trace: "); 94 printf("trace: ");
82 const char *s = pf; 95 const char *s = pf;
83 const char *n = pf; 96 const char *n = pf;
97 bool bInBracket = false;
84 looper( v1 ); 98 looper( v1 );
85 looper( v2 ); 99 looper( v2 );
86 looper( v3 ); 100 looper( v3 );
87 looper( v4 ); 101 looper( v4 );
88 fwrite( s, (ptrdiff_t)n-(ptrdiff_t)s, 1, stdout ); 102 fwrite( s, (ptrdiff_t)n-(ptrdiff_t)s, strlen(s), stdout );
89 fwrite( "\n", 1, 1, stdout ); 103 fwrite( "\n", 1, 1, stdout );
90 fflush( stdout ); 104 fflush( stdout );
91 } 105 }
@@ -96,12 +110,13 @@ namespace Bu
96 printf("trace: "); 110 printf("trace: ");
97 const char *s = pf; 111 const char *s = pf;
98 const char *n = pf; 112 const char *n = pf;
113 bool bInBracket = false;
99 looper( v1 ); 114 looper( v1 );
100 looper( v2 ); 115 looper( v2 );
101 looper( v3 ); 116 looper( v3 );
102 looper( v4 ); 117 looper( v4 );
103 looper( v5 ); 118 looper( v5 );
104 fwrite( s, (ptrdiff_t)n-(ptrdiff_t)s, 1, stdout ); 119 fwrite( s, (ptrdiff_t)n-(ptrdiff_t)s, strlen(s), stdout );
105 fwrite( "\n", 1, 1, stdout ); 120 fwrite( "\n", 1, 1, stdout );
106 fflush( stdout ); 121 fflush( stdout );
107 } 122 }
@@ -114,13 +129,14 @@ namespace Bu
114 printf("trace: "); 129 printf("trace: ");
115 const char *s = pf; 130 const char *s = pf;
116 const char *n = pf; 131 const char *n = pf;
132 bool bInBracket = false;
117 looper( v1 ); 133 looper( v1 );
118 looper( v2 ); 134 looper( v2 );
119 looper( v3 ); 135 looper( v3 );
120 looper( v4 ); 136 looper( v4 );
121 looper( v5 ); 137 looper( v5 );
122 looper( v6 ); 138 looper( v6 );
123 fwrite( s, (ptrdiff_t)n-(ptrdiff_t)s, 1, stdout ); 139 fwrite( s, (ptrdiff_t)n-(ptrdiff_t)s, strlen(s), stdout );
124 fwrite( "\n", 1, 1, stdout ); 140 fwrite( "\n", 1, 1, stdout );
125 fflush( stdout ); 141 fflush( stdout );
126 } 142 }
@@ -133,6 +149,7 @@ namespace Bu
133 printf("trace: "); 149 printf("trace: ");
134 const char *s = pf; 150 const char *s = pf;
135 const char *n = pf; 151 const char *n = pf;
152 bool bInBracket = false;
136 looper( v1 ); 153 looper( v1 );
137 looper( v2 ); 154 looper( v2 );
138 looper( v3 ); 155 looper( v3 );
@@ -140,7 +157,7 @@ namespace Bu
140 looper( v5 ); 157 looper( v5 );
141 looper( v6 ); 158 looper( v6 );
142 looper( v7 ); 159 looper( v7 );
143 fwrite( s, (ptrdiff_t)n-(ptrdiff_t)s, 1, stdout ); 160 fwrite( s, (ptrdiff_t)n-(ptrdiff_t)s, strlen(s), stdout );
144 fwrite( "\n", 1, 1, stdout ); 161 fwrite( "\n", 1, 1, stdout );
145 fflush( stdout ); 162 fflush( stdout );
146 } 163 }
@@ -156,8 +173,8 @@ namespace Bu
156 template<> void __tracer_format<uint64_t>( const uint64_t &v ); 173 template<> void __tracer_format<uint64_t>( const uint64_t &v );
157 template<> void __tracer_format<bool>( const bool &v ); 174 template<> void __tracer_format<bool>( const bool &v );
158 template<> void __tracer_format<char>( const char &v ); 175 template<> void __tracer_format<char>( const char &v );
159 //template<> void __tracer_format<long>( const long &v ); 176 template<> void __tracer_format<long>( const long &v );
160 //template<> void __tracer_format<unsigned long>( const unsigned long &v ); 177 template<> void __tracer_format<unsigned long>( const unsigned long &v );
161 template<> void __tracer_format<float>( const float &v ); 178 template<> void __tracer_format<float>( const float &v );
162 template<> void __tracer_format<double>( const double &v ); 179 template<> void __tracer_format<double>( const double &v );
163 template<> void __tracer_format<void *>( void * const &v ); 180 template<> void __tracer_format<void *>( void * const &v );
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