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authorMike Buland <eichlan@xagasoft.com>2009-01-27 21:45:03 +0000
committerMike Buland <eichlan@xagasoft.com>2009-01-27 21:45:03 +0000
commit67ec9d667ab0c3f2258f6f69308d0731e74a74d0 (patch)
treeeaaccf38aeecbb22b06b0156a40cf0dbb66c7bdc /src/tests
parent00bb8c39b97638c872ebccc6aee7f3c5fb57d7d6 (diff)
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Nids is even better, all fixed, no problems. And you can define you're own
creator functions for the cache store...soon, you'll also be able to define you're own loader/writer functions, but the default will still work exactly like this. I also did more work on nidstool, I think I may actually have to create a tools dir that will just compile some executables for the libbu++ root, because this thing is handy. You can get info on the system, trace streams' blocks, and I'm working on an analysis function that will help you figure out how to optomize your nids files. Plus, it'll have a function soon for re-writing a nids stream, which will let you change the block size, defragment, and remove unused blocks.
Diffstat (limited to '')
-rw-r--r--src/tests/nidstool.cpp115
1 files changed, 94 insertions, 21 deletions
diff --git a/src/tests/nidstool.cpp b/src/tests/nidstool.cpp
index 546534e..1becba5 100644
--- a/src/tests/nidstool.cpp
+++ b/src/tests/nidstool.cpp
@@ -5,6 +5,13 @@
5 5
6#include <stdlib.h> 6#include <stdlib.h>
7 7
8typedef struct Block
9{
10 uint32_t uFirstBlock;
11 uint32_t uNextBlock;
12 uint32_t uBytesUsed;
13} Block;
14
8class Param : public Bu::ParamProc 15class Param : public Bu::ParamProc
9{ 16{
10public: 17public:
@@ -14,7 +21,9 @@ public:
14 addParam("info", 'i', mkproc(Param::procInfo), 21 addParam("info", 'i', mkproc(Param::procInfo),
15 "Print some info about the file."); 22 "Print some info about the file.");
16 addParam("dump", 'd', mkproc(Param::procDump), 23 addParam("dump", 'd', mkproc(Param::procDump),
17 "Dump a stream to a file"); 24 "Dump a stream to a file.");
25 addParam("analyze", 'a', mkproc(Param::procAnalyze),
26 "Analyze a nids file.");
18 addParam("help", 'h', mkproc(Bu::ParamProc::help), "This help."); 27 addParam("help", 'h', mkproc(Bu::ParamProc::help), "This help.");
19 process( argc, argv ); 28 process( argc, argv );
20 } 29 }
@@ -23,6 +32,20 @@ public:
23 { 32 {
24 } 33 }
25 34
35 void printInfo( Bu::Nids &n )
36 {
37 printf("File info:\n");
38 printf(" Header overhead: %db\n", n.getBlockStart() );
39 printf(" Block size: %db\n", n.getBlockSize() );
40 printf(" Block count: %d\n", n.getNumBlocks() );
41 printf(" Blocks used: %d (%d%%)\n", n.getNumUsedBlocks(),
42 n.getNumUsedBlocks()*100/n.getNumBlocks() );
43 printf(" Block overhead: %db\n", n.getBlockOverhead() );
44 printf(" Block storage: %db (%d%%)\n",
45 n.getBlockSize()-n.getBlockOverhead(),
46 (n.getBlockSize()-n.getBlockOverhead())*100/n.getBlockSize() );
47 }
48
26 int procInfo( int argc, char *argv[] ) 49 int procInfo( int argc, char *argv[] )
27 { 50 {
28 if( argc < 1 ) 51 if( argc < 1 )
@@ -35,27 +58,10 @@ public:
35 Bu::Nids n( fIn ); 58 Bu::Nids n( fIn );
36 n.initialize(); 59 n.initialize();
37 60
38 printf("Block size: %db\n", n.getBlockSize() ); 61 printInfo( n );
39 printf("Block count: %d\n", n.getNumBlocks() );
40 printf("Blocks used: %d (%d%%)\n", n.getNumUsedBlocks(),
41 n.getNumUsedBlocks()*100/n.getNumBlocks() );
42 printf("Block start: %db\n", n.getBlockStart() );
43 printf("Block overhead: %db\n", n.getBlockOverhead() );
44 printf("Block storage: %db (%d%%)\n",
45 n.getBlockSize()-n.getBlockOverhead(),
46 (n.getBlockSize()-n.getBlockOverhead())*100/n.getBlockSize() );
47 62
48 if( argc >= 2 ) 63 if( argc >= 2 )
49 { 64 {
50 typedef struct Block
51 {
52 uint32_t uFirstBlock;
53 uint32_t uNextBlock;
54 uint32_t uPrevBlock;
55 uint32_t uBytesUsed;
56 uint32_t uReserved;
57 } Block;
58
59 uint32_t uStream = strtoul( argv[1], NULL, 0 ); 65 uint32_t uStream = strtoul( argv[1], NULL, 0 );
60 uint32_t uBlock = uStream; 66 uint32_t uBlock = uStream;
61 67
@@ -65,8 +71,8 @@ public:
65 { 71 {
66 fIn.setPos( n.getBlockStart()+n.getBlockSize()*uBlock ); 72 fIn.setPos( n.getBlockStart()+n.getBlockSize()*uBlock );
67 fIn.read( &b, sizeof(Block) ); 73 fIn.read( &b, sizeof(Block) );
68 printf("Stream %u: block %u, next %u, prev %u, %ub used.\n", 74 printf("Stream %u: block %u, next %u, %ub used.\n",
69 uStream, uBlock, b.uNextBlock, b.uPrevBlock, b.uBytesUsed 75 uStream, uBlock, b.uNextBlock, b.uBytesUsed
70 ); 76 );
71 if( b.uNextBlock == 0xFFFFFFFFUL ) 77 if( b.uNextBlock == 0xFFFFFFFFUL )
72 break; 78 break;
@@ -112,6 +118,73 @@ public:
112 return 3; 118 return 3;
113 } 119 }
114 120
121 int procAnalyze( int argc, char *argv[] )
122 {
123 if( argc < 1 )
124 {
125 printf("You must provide a file name.\n");
126 exit( 1 );
127 }
128
129 Bu::File fIn( argv[0], Bu::File::Read );
130 Bu::Nids n( fIn );
131 n.initialize();
132
133 printInfo( n );
134
135 int iStreamCnt = 0;
136 int iStreamTotal = 0;
137 int iOneBlock = 0;
138 uint32_t iLargest = 0;
139 uint32_t iSmallest = 0;
140 int iWaste = 0;
141 int iUsable = n.getBlockSize()-n.getBlockOverhead();
142 Block b;
143 for( int j = 0; j < n.getNumBlocks(); j++ )
144 {
145 fIn.setPos( n.getBlockStart()+n.getBlockSize()*j );
146 fIn.read( &b, sizeof(Block) );
147 if( b.uFirstBlock != (uint32_t)j )
148 continue;
149
150 iStreamCnt++;
151 iStreamTotal += b.uBytesUsed;
152
153 if( b.uNextBlock == 0xFFFFFFFFUL )
154 {
155 iOneBlock++;
156 iWaste += iUsable - b.uBytesUsed;
157 }
158 else
159 {
160 iWaste += iUsable - (b.uBytesUsed%iUsable);
161 }
162
163 if( j == 0 )
164 {
165 iSmallest = iLargest = b.uBytesUsed;
166 }
167 else
168 {
169 if( iLargest < b.uBytesUsed )
170 iLargest = b.uBytesUsed;
171 if( iSmallest > b.uBytesUsed )
172 iSmallest = b.uBytesUsed;
173 }
174 }
175 printf("Steam analysis:\n");
176 printf(" Stream count: %d\n", iStreamCnt );
177 printf(" Stream size: %db/%db/%db (min/avr/max)\n",
178 iSmallest, iStreamTotal/iStreamCnt, iLargest );
179 printf(" One-block streams: %d (%d%%)\n",
180 iOneBlock, iOneBlock*100/iStreamCnt );
181 printf(" Total wasted space: %db (%d%%)\n",
182 iWaste, iWaste*100/iStreamTotal );
183 printf(" Avr blocks-per-stream: %f%%\n",
184 (float)n.getNumBlocks()/(float)iStreamCnt );
185
186 return 1;
187 }
115}; 188};
116 189
117 190