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-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