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| author | Mike Buland <eichlan@xagasoft.com> | 2008-09-15 20:03:56 +0000 |
|---|---|---|
| committer | Mike Buland <eichlan@xagasoft.com> | 2008-09-15 20:03:56 +0000 |
| commit | 597a1487c716b799428f4b4a4903e65df4c93ba9 (patch) | |
| tree | c743b0d4dfc3bacbffc196589543ec4e9abf1aaf | |
| parent | 3c6cb7f2347aed974543f9082a0ccd297577db41 (diff) | |
| download | libbu++-597a1487c716b799428f4b4a4903e65df4c93ba9.tar.gz libbu++-597a1487c716b799428f4b4a4903e65df4c93ba9.tar.bz2 libbu++-597a1487c716b799428f4b4a4903e65df4c93ba9.tar.xz libbu++-597a1487c716b799428f4b4a4903e65df4c93ba9.zip | |
Whoa! Loads of NIDS work. It actually compiles, runs, and I'm optimizing the
hell out of it. Good times, everyone. This is a major chunk for congo, and
the new optimizations should be good.
Diffstat (limited to '')
| -rw-r--r-- | misc/raa_format.txt | 20 | ||||
| -rw-r--r-- | src/archive.cpp | 2 | ||||
| -rw-r--r-- | src/bitstring.cpp | 305 | ||||
| -rw-r--r-- | src/bitstring.h | 197 | ||||
| -rw-r--r-- | src/file.h | 1 | ||||
| -rw-r--r-- | src/fstring.h | 11 | ||||
| -rw-r--r-- | src/hash.h | 50 | ||||
| -rw-r--r-- | src/nids.cpp | 93 | ||||
| -rw-r--r-- | src/nids.h | 31 | ||||
| -rw-r--r-- | src/nidsstream.cpp | 88 | ||||
| -rw-r--r-- | src/nidsstream.h | 32 | ||||
| -rw-r--r-- | src/tests/hash.cpp | 2 | ||||
| -rw-r--r-- | src/tests/nids.cpp | 19 | ||||
| -rw-r--r-- | src/unit/hash.cpp | 22 | ||||
| -rw-r--r-- | src/util.h | 9 |
15 files changed, 620 insertions, 262 deletions
diff --git a/misc/raa_format.txt b/misc/raa_format.txt index 1b2c9f8..693cbc8 100644 --- a/misc/raa_format.txt +++ b/misc/raa_format.txt | |||
| @@ -22,16 +22,17 @@ structures. | |||
| 22 | The basic header: | 22 | The basic header: |
| 23 | 23 | ||
| 24 | 00-03: Magic Number, something cute, I dunno yet (encoding independant) | 24 | 00-03: Magic Number, something cute, I dunno yet (encoding independant) |
| 25 | 04: Byte count/order for standard indexes (8/4 for 64/32bit systems) | 25 | 04: Version code (0) |
| 26 | High order bit masked out determines endianness (1 = big, 0 = small) | 26 | 05: Byte count/order for standard indexes (8/4 for 64/32bit systems) |
| 27 | High order bit masked out determines endianness (1 = big, 0 = little) | ||
| 27 | The program will only accept one word-width for now, we can make it | 28 | The program will only accept one word-width for now, we can make it |
| 28 | adjustable later, or fix this at 4 bytes. | 29 | adjustable later, or fix this at 4 bytes. |
| 29 | 05-08: Blocksize in bytes, could be anything, I don't think we need to worry | 30 | 06-09: Blocksize in bytes, could be anything, I don't think we need to worry |
| 30 | about OS related things for this, but it should be set intelligently by | 31 | about OS related things for this, but it should be set intelligently by |
| 31 | the owner. This includes the bytes reserved for a block header. | 32 | the owner. This includes the bytes reserved for a block header. |
| 32 | 09-12: Total block count, includes both used and unused blocks. | 33 | 10-13: Total block count, includes both used and unused blocks. |
| 33 | 13-16: Total used blocks, useful for determining when to expand. | 34 | 14-17: Total used blocks, useful for determining when to expand. |
| 34 | 17-24: Reserved for flags and the like, should be all zeros for now. | 35 | 18-24: Reserved for flags and the like, should be all zeros for now. |
| 35 | 36 | ||
| 36 | At this point are a number of "blocks" each with their own header and data are | 37 | At this point are a number of "blocks" each with their own header and data are |
| 37 | laid out sequentially, accessing one should be easy, seek to | 38 | laid out sequentially, accessing one should be easy, seek to |
| @@ -45,10 +46,9 @@ The block header is as follows: | |||
| 45 | then this block is the last in the chain. | 46 | then this block is the last in the chain. |
| 46 | 08-11: Prev block in chain. If this number matches the current block index | 47 | 08-11: Prev block in chain. If this number matches the current block index |
| 47 | then this block is the first in the chain. | 48 | then this block is the first in the chain. |
| 48 | 12-15: Number of bytes used/allocated remaining in the chain. If this is the | 49 | 12-15: Number of bytes used. If this is the first block, this is the total |
| 49 | first block, then this is the total size of the object accross all | 50 | amount of data in the stream, otherwise it's the amount of data in the |
| 50 | blocks in the chain. For the last block in the chain this will usually | 51 | current block. |
| 51 | be less than the available space. | ||
| 52 | 16-19: Reserved flagspace or something, make sure it's all zeros. | 52 | 16-19: Reserved flagspace or something, make sure it's all zeros. |
| 53 | 20-xx: Block data, whatever you wanted to store. At the moment this is going | 53 | 20-xx: Block data, whatever you wanted to store. At the moment this is going |
| 54 | to be (blocksize) - 20 for now, it will change if the block header | 54 | to be (blocksize) - 20 for now, it will change if the block header |
diff --git a/src/archive.cpp b/src/archive.cpp index 90211fe..c1c89cc 100644 --- a/src/archive.cpp +++ b/src/archive.cpp | |||
| @@ -512,7 +512,7 @@ void Bu::Archive::assocPtrID( void **ptr, uint32_t id ) | |||
| 512 | if( !hPtrDest.has( id ) ) | 512 | if( !hPtrDest.has( id ) ) |
| 513 | hPtrDest.insert( id, List<void **>() ); | 513 | hPtrDest.insert( id, List<void **>() ); |
| 514 | 514 | ||
| 515 | hPtrDest[id].value().append( ptr ); | 515 | hPtrDest[id].getValue().append( ptr ); |
| 516 | } | 516 | } |
| 517 | 517 | ||
| 518 | void Bu::Archive::readID( const void *ptr, uint32_t id ) | 518 | void Bu::Archive::readID( const void *ptr, uint32_t id ) |
diff --git a/src/bitstring.cpp b/src/bitstring.cpp index 8d99992..85f89e2 100644 --- a/src/bitstring.cpp +++ b/src/bitstring.cpp | |||
| @@ -7,59 +7,47 @@ | |||
| 7 | #define random() rand() | 7 | #define random() rand() |
| 8 | #endif | 8 | #endif |
| 9 | 9 | ||
| 10 | #define bitsToBytes( nBits ) (((nBits/8)+((nBits%8)?(1):(0)))); | 10 | #define bitsToBytes( iBits ) (((iBits/8)+((iBits%8)?(1):(0)))); |
| 11 | 11 | ||
| 12 | Bu::BitString::BitString() | 12 | Bu::BitString::BitString() |
| 13 | { | 13 | { |
| 14 | caData = NULL; | 14 | caData = NULL; |
| 15 | cTopByteMask = 0; | 15 | cTopByteMask = 0; |
| 16 | nBits = nBytes = 0; | 16 | iBits = iBytes = 0; |
| 17 | } | 17 | } |
| 18 | 18 | ||
| 19 | Bu::BitString::BitString( const Bu::BitString &xSrc ) | 19 | Bu::BitString::BitString( const Bu::BitString &xSrc ) |
| 20 | { | 20 | { |
| 21 | nBits = xSrc.nBits; | 21 | iBits = xSrc.iBits; |
| 22 | nBytes = xSrc.nBytes; | 22 | iBytes = xSrc.iBytes; |
| 23 | cTopByteMask = xSrc.cTopByteMask; | 23 | cTopByteMask = xSrc.cTopByteMask; |
| 24 | caData = new unsigned char[nBytes]; | 24 | caData = new unsigned char[iBytes]; |
| 25 | memcpy( caData, xSrc.caData, nBytes ); | 25 | memcpy( caData, xSrc.caData, iBytes ); |
| 26 | 26 | ||
| 27 | fixup(); | 27 | fixup(); |
| 28 | } | 28 | } |
| 29 | 29 | ||
| 30 | Bu::BitString::BitString( long nNewBits, bool bFillRandomly ) | 30 | Bu::BitString::BitString( long iNewBits, bool bFillRandomly ) |
| 31 | { | 31 | { |
| 32 | long j; | 32 | long j; |
| 33 | nBits = nNewBits; | 33 | iBits = iNewBits; |
| 34 | nBytes = bitsToBytes( nNewBits );//(nNewBits/8)+((nNewBits%8)?(1):(0)); | 34 | iBytes = bitsToBytes( iNewBits );//(iNewBits/8)+((iNewBits%8)?(1):(0)); |
| 35 | caData = new unsigned char[nBytes]; | 35 | caData = new unsigned char[iBytes]; |
| 36 | 36 | ||
| 37 | // This can either mean that there are a multiple of eight bits or zero, if there are zero you're an idiot | 37 | setMask(); |
| 38 | // (zero can't happen, because we would allocate an extra byte and never use it) | ||
| 39 | if( (nBits%8 == 0) ) | ||
| 40 | { | ||
| 41 | cTopByteMask = 0xFF; | ||
| 42 | } | ||
| 43 | else | ||
| 44 | { | ||
| 45 | cTopByteMask = 0; | ||
| 46 | for( j = 0; j < (nBits%8); j++ ) | ||
| 47 | { | ||
| 48 | cTopByteMask |= (1<<j); | ||
| 49 | } | ||
| 50 | } | ||
| 51 | 38 | ||
| 52 | if( bFillRandomly ) | 39 | if( bFillRandomly ) |
| 53 | { | 40 | { |
| 54 | // rand() only returns a value up to RAND_MAX (0x7FFF on my system) so I'll just use the low order byte) | 41 | // rand() only returns a value up to RAND_MAX (0x7FFF on my system) so |
| 55 | for( j = 0; j < nBytes; j++ ) | 42 | // I'll just use the low order byte) |
| 43 | for( j = 0; j < iBytes; j++ ) | ||
| 56 | { | 44 | { |
| 57 | caData[j] = (unsigned char)(random() & 0xFF); | 45 | caData[j] = (unsigned char)(random() & 0xFF); |
| 58 | } | 46 | } |
| 59 | } | 47 | } |
| 60 | else | 48 | else |
| 61 | { | 49 | { |
| 62 | clearString(); | 50 | clear(); |
| 63 | } | 51 | } |
| 64 | 52 | ||
| 65 | fixup(); | 53 | fixup(); |
| @@ -76,11 +64,11 @@ Bu::BitString &Bu::BitString::operator=( const Bu::BitString &xSrc ) | |||
| 76 | { | 64 | { |
| 77 | delete[] caData; | 65 | delete[] caData; |
| 78 | } | 66 | } |
| 79 | nBits = xSrc.nBits; | 67 | iBits = xSrc.iBits; |
| 80 | nBytes = xSrc.nBytes; | 68 | iBytes = xSrc.iBytes; |
| 81 | cTopByteMask = xSrc.cTopByteMask; | 69 | cTopByteMask = xSrc.cTopByteMask; |
| 82 | caData = new unsigned char[nBytes]; | 70 | caData = new unsigned char[iBytes]; |
| 83 | memcpy( caData, xSrc.caData, nBytes ); | 71 | memcpy( caData, xSrc.caData, iBytes ); |
| 84 | 72 | ||
| 85 | fixup(); | 73 | fixup(); |
| 86 | 74 | ||
| @@ -91,7 +79,7 @@ Bu::BitString Bu::BitString::operator~() | |||
| 91 | { | 79 | { |
| 92 | Bu::BitString xRet( *this ); | 80 | Bu::BitString xRet( *this ); |
| 93 | 81 | ||
| 94 | for( int j = 0; j < xRet.nBytes; j++ ) | 82 | for( int j = 0; j < xRet.iBytes; j++ ) |
| 95 | { | 83 | { |
| 96 | xRet.caData[j] = ~xRet.caData[j]; | 84 | xRet.caData[j] = ~xRet.caData[j]; |
| 97 | } | 85 | } |
| @@ -101,24 +89,24 @@ Bu::BitString Bu::BitString::operator~() | |||
| 101 | return xRet; | 89 | return xRet; |
| 102 | } | 90 | } |
| 103 | 91 | ||
| 104 | Bu::BitString Bu::BitString::operator<<( const long nAmt ) | 92 | Bu::BitString Bu::BitString::operator<<( const long iAmt ) |
| 105 | { | 93 | { |
| 106 | if( nAmt == 0 ) | 94 | if( iAmt == 0 ) |
| 107 | { | 95 | { |
| 108 | return (*this); | 96 | return (*this); |
| 109 | } | 97 | } |
| 110 | //int nByteShift = nAmt/8; | 98 | //int iByteShift = iAmt/8; |
| 111 | 99 | ||
| 112 | Bu::BitString xSub( getBitLength() ); | 100 | Bu::BitString xSub( getSize() ); |
| 113 | 101 | ||
| 114 | long shft = (nAmt%8); | 102 | long shft = (iAmt%8); |
| 115 | long base = (nAmt/8); | 103 | long base = (iAmt/8); |
| 116 | unsigned char lowmask=0; | 104 | unsigned char lowmask=0; |
| 117 | for( long j = 0; j < 8-shft; j++ ) | 105 | for( long j = 0; j < 8-shft; j++ ) |
| 118 | { | 106 | { |
| 119 | lowmask |= (1<<j); | 107 | lowmask |= (1<<j); |
| 120 | } | 108 | } |
| 121 | for( long j = 0; j < xSub.nBytes; j++ ) | 109 | for( long j = 0; j < xSub.iBytes; j++ ) |
| 122 | { | 110 | { |
| 123 | xSub.caData[base+j] = ((caData[j]>>shft)&(lowmask)) | ((caData[j+1]<<(8-shft))&(~lowmask)); | 111 | xSub.caData[base+j] = ((caData[j]>>shft)&(lowmask)) | ((caData[j+1]<<(8-shft))&(~lowmask)); |
| 124 | } | 112 | } |
| @@ -127,97 +115,97 @@ Bu::BitString Bu::BitString::operator<<( const long nAmt ) | |||
| 127 | return xSub; | 115 | return xSub; |
| 128 | } | 116 | } |
| 129 | 117 | ||
| 130 | Bu::BitString Bu::BitString::operator>>( const long nAmt ) | 118 | Bu::BitString Bu::BitString::operator>>( const long iAmt ) |
| 131 | { | 119 | { |
| 132 | if( nAmt == 0 ) | 120 | if( iAmt == 0 ) |
| 133 | { | 121 | { |
| 134 | return (*this); | 122 | return (*this); |
| 135 | } | 123 | } |
| 136 | return (*this); | 124 | return (*this); |
| 137 | } | 125 | } |
| 138 | 126 | ||
| 139 | void Bu::BitString::shiftLeft( long nAmt ) | 127 | void Bu::BitString::shiftLeft( long iAmt ) |
| 140 | { | 128 | { |
| 141 | if( nAmt == 0 ) | 129 | if( iAmt == 0 ) |
| 142 | { | 130 | { |
| 143 | return; | 131 | return; |
| 144 | } | 132 | } |
| 145 | else if( nAmt < 0 ) | 133 | else if( iAmt < 0 ) |
| 146 | { | 134 | { |
| 147 | shiftRight( -nAmt ); | 135 | shiftRight( -iAmt ); |
| 148 | return; | 136 | return; |
| 149 | } | 137 | } |
| 150 | 138 | ||
| 151 | long nByteShift = nAmt/8; | 139 | long iByteShift = iAmt/8; |
| 152 | long nBitShift = nAmt%8; | 140 | long iBitShift = iAmt%8; |
| 153 | 141 | ||
| 154 | long j; | 142 | long j; |
| 155 | for( j = nBytes-1; j >= 0; j-- ) | 143 | for( j = iBytes-1; j >= 0; j-- ) |
| 156 | { | 144 | { |
| 157 | caData[j] = (((j-nByteShift)<0)?(0):((caData[j-nByteShift]<<nBitShift))) | (((j-nByteShift-1)<0)?(0):((caData[j-nByteShift-1]>>(8-nBitShift)))); | 145 | caData[j] = (((j-iByteShift)<0)?(0):((caData[j-iByteShift]<<iBitShift))) | (((j-iByteShift-1)<0)?(0):((caData[j-iByteShift-1]>>(8-iBitShift)))); |
| 158 | } | 146 | } |
| 159 | 147 | ||
| 160 | fixup(); | 148 | fixup(); |
| 161 | } | 149 | } |
| 162 | 150 | ||
| 163 | void Bu::BitString::shiftRight( long nAmt ) | 151 | void Bu::BitString::shiftRight( long iAmt ) |
| 164 | { | 152 | { |
| 165 | if( nAmt == 0 ) | 153 | if( iAmt == 0 ) |
| 166 | { | 154 | { |
| 167 | return; | 155 | return; |
| 168 | } | 156 | } |
| 169 | else if( nAmt < 0 ) | 157 | else if( iAmt < 0 ) |
| 170 | { | 158 | { |
| 171 | shiftLeft( -nAmt ); | 159 | shiftLeft( -iAmt ); |
| 172 | return; | 160 | return; |
| 173 | } | 161 | } |
| 174 | 162 | ||
| 175 | long nByteShift = nAmt/8; | 163 | long iByteShift = iAmt/8; |
| 176 | long nBitShift = nAmt%8; | 164 | long iBitShift = iAmt%8; |
| 177 | 165 | ||
| 178 | long j; | 166 | long j; |
| 179 | for( j = 0; j < nBytes; j++ ) | 167 | for( j = 0; j < iBytes; j++ ) |
| 180 | { | 168 | { |
| 181 | caData[j] = (((j+nByteShift)>nBytes)?(0):((caData[j+nByteShift]>>nBitShift))) | (((j+nByteShift+1)>nBytes)?(0):((caData[j+nByteShift+1]<<(8-nBitShift)))); | 169 | caData[j] = (((j+iByteShift)>iBytes)?(0):((caData[j+iByteShift]>>iBitShift))) | (((j+iByteShift+1)>iBytes)?(0):((caData[j+iByteShift+1]<<(8-iBitShift)))); |
| 182 | } | 170 | } |
| 183 | 171 | ||
| 184 | fixup(); | 172 | fixup(); |
| 185 | } | 173 | } |
| 186 | /* | 174 | /* |
| 187 | long Bu::BitString::bitsToBytes( long nBits ) | 175 | long Bu::BitString::bitsToBytes( long iBits ) |
| 188 | { | 176 | { |
| 189 | return (nBits/8)+((nBits%8)?(1):(0)); | 177 | return (iBits/8)+((iBits%8)?(1):(0)); |
| 190 | } | 178 | } |
| 191 | */ | 179 | */ |
| 192 | void Bu::BitString::fixup() | 180 | void Bu::BitString::fixup() |
| 193 | { | 181 | { |
| 194 | if( caData != NULL ) | 182 | if( caData != NULL ) |
| 195 | { | 183 | { |
| 196 | caData[nBytes-1] &= cTopByteMask; | 184 | caData[iBytes-1] &= cTopByteMask; |
| 197 | } | 185 | } |
| 198 | } | 186 | } |
| 199 | 187 | ||
| 200 | void Bu::BitString::setBit( long nBit, bool bBitState ) | 188 | void Bu::BitString::setBit( long iBit, bool bBitState ) |
| 201 | { | 189 | { |
| 202 | if( bBitState ) | 190 | if( bBitState ) |
| 203 | { | 191 | { |
| 204 | caData[nBit/8] |= (1<<(nBit%8)); | 192 | caData[iBit/8] |= (1<<(iBit%8)); |
| 205 | } | 193 | } |
| 206 | else | 194 | else |
| 207 | { | 195 | { |
| 208 | caData[nBit/8] &= ~(1<<(nBit%8)); | 196 | caData[iBit/8] &= ~(1<<(iBit%8)); |
| 209 | } | 197 | } |
| 210 | } | 198 | } |
| 211 | 199 | ||
| 212 | void Bu::BitString::flipBit( long nBit ) | 200 | void Bu::BitString::flipBit( long iBit ) |
| 213 | { | 201 | { |
| 214 | caData[nBit/8] ^= (1<<(nBit%8)); | 202 | caData[iBit/8] ^= (1<<(iBit%8)); |
| 215 | } | 203 | } |
| 216 | 204 | ||
| 217 | bool Bu::BitString::getBit( long nBit ) | 205 | bool Bu::BitString::getBit( long iBit ) |
| 218 | { | 206 | { |
| 219 | if( nBit >= nBits || nBit < 0 ) return false; | 207 | if( iBit >= iBits || iBit < 0 ) return false; |
| 220 | if( (caData[nBit/8] & (1<<(nBit%8))) == 0 ) | 208 | if( (caData[iBit/8] & (1<<(iBit%8))) == 0 ) |
| 221 | { | 209 | { |
| 222 | return false; | 210 | return false; |
| 223 | } | 211 | } |
| @@ -226,23 +214,28 @@ bool Bu::BitString::getBit( long nBit ) | |||
| 226 | 214 | ||
| 227 | long Bu::BitString::getBitLength() | 215 | long Bu::BitString::getBitLength() |
| 228 | { | 216 | { |
| 229 | return nBits; | 217 | return iBits; |
| 218 | } | ||
| 219 | |||
| 220 | long Bu::BitString::getSize() | ||
| 221 | { | ||
| 222 | return iBits; | ||
| 230 | } | 223 | } |
| 231 | 224 | ||
| 232 | class Bu::BitString Bu::BitString::getSubString( long nLower, long nUpper ) | 225 | class Bu::BitString Bu::BitString::getSubString( long iLower, long iUpper ) |
| 233 | { | 226 | { |
| 234 | if( nUpper == 0 || nUpper < nLower ) nUpper = nBits; | 227 | if( iUpper == 0 || iUpper < iLower ) iUpper = iBits; |
| 235 | 228 | ||
| 236 | Bu::BitString xSub( nUpper-nLower+1 ); | 229 | Bu::BitString xSub( iUpper-iLower+1 ); |
| 237 | 230 | ||
| 238 | long shft = (nLower%8); | 231 | long shft = (iLower%8); |
| 239 | long base = (nLower/8); | 232 | long base = (iLower/8); |
| 240 | unsigned char lowmask=0; | 233 | unsigned char lowmask=0; |
| 241 | for( long j = 0; j < 8-shft; j++ ) | 234 | for( long j = 0; j < 8-shft; j++ ) |
| 242 | { | 235 | { |
| 243 | lowmask |= (1<<j); | 236 | lowmask |= (1<<j); |
| 244 | } | 237 | } |
| 245 | for( long j = 0; j < xSub.nBytes; j++ ) | 238 | for( long j = 0; j < xSub.iBytes; j++ ) |
| 246 | { | 239 | { |
| 247 | xSub.caData[j] = ((caData[base+j]>>shft)&(lowmask)) | ((caData[base+j+1]<<(8-shft))&(~lowmask)); | 240 | xSub.caData[j] = ((caData[base+j]>>shft)&(lowmask)) | ((caData[base+j+1]<<(8-shft))&(~lowmask)); |
| 248 | } | 241 | } |
| @@ -251,15 +244,15 @@ class Bu::BitString Bu::BitString::getSubString( long nLower, long nUpper ) | |||
| 251 | return xSub; | 244 | return xSub; |
| 252 | } | 245 | } |
| 253 | 246 | ||
| 254 | long Bu::BitString::toLong( long nStart, long nSize ) | 247 | long Bu::BitString::toLong( long iStart, long iSize ) |
| 255 | { | 248 | { |
| 256 | if( nSize < 1 ) nSize = 1; | 249 | if( iSize < 1 ) iSize = 1; |
| 257 | if( nSize > 32 ) nSize = 32; | 250 | if( iSize > 32 ) iSize = 32; |
| 258 | if( nStart < 0 ) return 0; | 251 | if( iStart < 0 ) return 0; |
| 259 | if( nStart+nSize > getBitLength() ) return 0; | 252 | if( iStart+iSize > getSize() ) return 0; |
| 260 | 253 | ||
| 261 | Bu::BitString tmpo; | 254 | Bu::BitString tmpo; |
| 262 | tmpo = getSubString( nStart, nStart+nSize-1 ); | 255 | tmpo = getSubString( iStart, iStart+iSize-1 ); |
| 263 | long x = *((long *)tmpo.caData); | 256 | long x = *((long *)tmpo.caData); |
| 264 | 257 | ||
| 265 | return x; | 258 | return x; |
| @@ -267,17 +260,17 @@ long Bu::BitString::toLong( long nStart, long nSize ) | |||
| 267 | /* | 260 | /* |
| 268 | std::string Bu::BitString::toString( bool bAddSpacers ) | 261 | std::string Bu::BitString::toString( bool bAddSpacers ) |
| 269 | { | 262 | { |
| 270 | long nSz = nBits; | 263 | long iSz = iBits; |
| 271 | if( bAddSpacers ) | 264 | if( bAddSpacers ) |
| 272 | { | 265 | { |
| 273 | nSz += (nBits/8); | 266 | iSz += (iBits/8); |
| 274 | if( nBits%8 == 0 ) nSz--; | 267 | if( iBits%8 == 0 ) iSz--; |
| 275 | } | 268 | } |
| 276 | std::string xStr; | 269 | std::string xStr; |
| 277 | 270 | ||
| 278 | int bw=0; | 271 | int bw=0; |
| 279 | int of=0; | 272 | int of=0; |
| 280 | for( int j = nBits-1; j >= 0; j-- ) | 273 | for( int j = iBits-1; j >= 0; j-- ) |
| 281 | { | 274 | { |
| 282 | if( getBit( j ) ) | 275 | if( getBit( j ) ) |
| 283 | { | 276 | { |
| @@ -291,7 +284,7 @@ std::string Bu::BitString::toString( bool bAddSpacers ) | |||
| 291 | if( bAddSpacers ) | 284 | if( bAddSpacers ) |
| 292 | { | 285 | { |
| 293 | bw++; | 286 | bw++; |
| 294 | if( bw >= 8 && j < nBits-1 ) | 287 | if( bw >= 8 && j < iBits-1 ) |
| 295 | { | 288 | { |
| 296 | bw = 0; | 289 | bw = 0; |
| 297 | of++; | 290 | of++; |
| @@ -303,74 +296,111 @@ std::string Bu::BitString::toString( bool bAddSpacers ) | |||
| 303 | return xStr; | 296 | return xStr; |
| 304 | } | 297 | } |
| 305 | */ | 298 | */ |
| 306 | void Bu::BitString::clearString() | 299 | void Bu::BitString::clear() |
| 307 | { | 300 | { |
| 308 | if( caData != NULL ) | 301 | if( caData != NULL ) |
| 309 | { | 302 | { |
| 310 | memset( caData, 0, nBytes ); | 303 | memset( caData, 0, iBytes ); |
| 311 | } | 304 | } |
| 312 | } | 305 | } |
| 313 | 306 | ||
| 314 | bool Bu::BitString::setBitLength( long nLength, bool bClear ) | 307 | bool Bu::BitString::setBitLength( long iLength, bool bClear ) |
| 315 | { | 308 | { |
| 316 | if( nBits != nLength ) | 309 | return setSize( iLength, bClear ); |
| 310 | } | ||
| 311 | |||
| 312 | bool Bu::BitString::setSize( long iLength, bool bClear ) | ||
| 313 | { | ||
| 314 | // First, if there's nothing, then allocate an empty one. | ||
| 315 | if( caData == NULL ) | ||
| 317 | { | 316 | { |
| 318 | if( bClear || caData == NULL ) | 317 | iBits = iLength; |
| 318 | iBytes = bitsToBytes( iLength ); | ||
| 319 | caData = new unsigned char[iBytes]; | ||
| 320 | memset( caData, 0, iBytes ); | ||
| 321 | return true; | ||
| 322 | } | ||
| 323 | |||
| 324 | // If the new length is the same as the old, don't do anything, but do | ||
| 325 | // check to see if we should still clear the data. | ||
| 326 | if( iBits != iLength ) | ||
| 327 | { | ||
| 328 | // Ok, we are changing the number if bits, but are we changing the | ||
| 329 | // number of bytes? | ||
| 330 | long iNewBytes = bitsToBytes( iLength ); | ||
| 331 | if( iBytes == iNewBytes ) | ||
| 319 | { | 332 | { |
| 320 | //long j; | 333 | // No? That makes life easier |
| 321 | nBits = nLength; | 334 | iBits = iLength; |
| 322 | nBytes = bitsToBytes( nLength );//(nNewBits/8)+((nNewBits%8)?(1):(0)); | 335 | setMask(); |
| 323 | if( caData != NULL ) delete[] caData; | 336 | if( bClear ) |
| 324 | caData = new unsigned char[nBytes]; | 337 | { |
| 325 | memset( caData, 0, nBytes ); | 338 | clear(); |
| 339 | } | ||
| 326 | } | 340 | } |
| 327 | else | 341 | else |
| 328 | { | 342 | { |
| 329 | //long j; | 343 | // Ok, reallocate and copy... |
| 330 | nBits = nLength; | 344 | iBits = iLength; |
| 331 | long nNewBytes = bitsToBytes( nLength );//(nNewBits/8)+((nNewBits%8)?(1):(0)); | 345 | long iNewBytes = bitsToBytes( iLength ); |
| 332 | unsigned char *tmp = caData; | 346 | if( bClear ) |
| 333 | caData = new unsigned char[nBytes]; | ||
| 334 | if( nNewBytes < nBytes ) | ||
| 335 | { | 347 | { |
| 336 | memcpy( caData, tmp, nNewBytes ); | 348 | delete[] caData; |
| 349 | caData = new unsigned char[iNewBytes]; | ||
| 350 | memset( caData, 0, iNewBytes ); | ||
| 337 | } | 351 | } |
| 338 | else | 352 | else |
| 339 | { | 353 | { |
| 340 | memcpy( caData, tmp, nBytes ); | 354 | unsigned char *tmp = caData; |
| 355 | caData = new unsigned char[iBytes]; | ||
| 356 | if( iNewBytes < iBytes ) | ||
| 357 | { | ||
| 358 | memcpy( caData, tmp, iNewBytes ); | ||
| 359 | } | ||
| 360 | else | ||
| 361 | { | ||
| 362 | memcpy( caData, tmp, iBytes ); | ||
| 363 | } | ||
| 364 | delete[] tmp; | ||
| 341 | } | 365 | } |
| 342 | delete[] tmp; | 366 | iBytes = iNewBytes; |
| 343 | nBytes = nNewBytes; | 367 | |
| 368 | setMask(); | ||
| 344 | } | 369 | } |
| 345 | 370 | ||
| 346 | // This can either mean that there are a multiple of eight bits or zero, if there are zero you're an idiot | ||
| 347 | // (zero can't happen, because we would allocate an extra byte and never use it) | ||
| 348 | if( (nBits%8 == 0) ) | ||
| 349 | { | ||
| 350 | cTopByteMask = 0xFF; | ||
| 351 | } | ||
| 352 | else | ||
| 353 | { | ||
| 354 | cTopByteMask = 0; | ||
| 355 | for( long j = 0; j < (nBits%8); j++ ) | ||
| 356 | { | ||
| 357 | cTopByteMask |= (1<<j); | ||
| 358 | } | ||
| 359 | } | ||
| 360 | } | 371 | } |
| 361 | else if( bClear ) | 372 | else if( bClear ) |
| 362 | { | 373 | { |
| 363 | clearString(); | 374 | clear(); |
| 364 | } | 375 | } |
| 365 | 376 | ||
| 366 | return true; | 377 | return true; |
| 367 | } | 378 | } |
| 368 | 379 | ||
| 380 | void Bu::BitString::setMask() | ||
| 381 | { | ||
| 382 | // This can either mean that there are a multiple of eight bits or | ||
| 383 | // zero, if there are zero you're an idiot (zero can't happen, because | ||
| 384 | // we would allocate an extra byte and never use it) | ||
| 385 | if( (iBits%8 == 0) ) | ||
| 386 | { | ||
| 387 | cTopByteMask = 0xFF; | ||
| 388 | } | ||
| 389 | else | ||
| 390 | { | ||
| 391 | cTopByteMask = 0; | ||
| 392 | for( long j = 0; j < (iBits%8); j++ ) | ||
| 393 | { | ||
| 394 | cTopByteMask |= (1<<j); | ||
| 395 | } | ||
| 396 | } | ||
| 397 | } | ||
| 398 | |||
| 369 | void Bu::BitString::randomize() | 399 | void Bu::BitString::randomize() |
| 370 | { | 400 | { |
| 371 | if( caData != NULL ) | 401 | if( caData != NULL ) |
| 372 | { | 402 | { |
| 373 | for( int j = 0; j < nBytes; j++ ) | 403 | for( int j = 0; j < iBytes; j++ ) |
| 374 | { | 404 | { |
| 375 | caData[j] = (unsigned char)(random() & 0xFF); | 405 | caData[j] = (unsigned char)(random() & 0xFF); |
| 376 | } | 406 | } |
| @@ -382,7 +412,7 @@ void Bu::BitString::invert() | |||
| 382 | { | 412 | { |
| 383 | if( caData != NULL ) | 413 | if( caData != NULL ) |
| 384 | { | 414 | { |
| 385 | for( long j = 0; j < nBytes; j++ ) | 415 | for( long j = 0; j < iBytes; j++ ) |
| 386 | { | 416 | { |
| 387 | caData[j] = ~caData[j]; | 417 | caData[j] = ~caData[j]; |
| 388 | } | 418 | } |
| @@ -392,7 +422,7 @@ void Bu::BitString::invert() | |||
| 392 | 422 | ||
| 393 | long Bu::BitString::getHighestOrderBitPos() | 423 | long Bu::BitString::getHighestOrderBitPos() |
| 394 | { | 424 | { |
| 395 | for( long j = nBits-1; j >= 0; j-- ) | 425 | for( long j = iBits-1; j >= 0; j-- ) |
| 396 | { | 426 | { |
| 397 | if( getBit( j ) ) | 427 | if( getBit( j ) ) |
| 398 | { | 428 | { |
| @@ -405,34 +435,23 @@ long Bu::BitString::getHighestOrderBitPos() | |||
| 405 | /* | 435 | /* |
| 406 | bool Bu::BitString::writeToFile( FILE *fh ) | 436 | bool Bu::BitString::writeToFile( FILE *fh ) |
| 407 | { | 437 | { |
| 408 | fwrite( &nBits, sizeof(long), 1, fh ); | 438 | fwrite( &iBits, sizeof(long), 1, fh ); |
| 409 | fwrite( caData, sizeof(char), nBytes, fh ); | 439 | fwrite( caData, sizeof(char), iBytes, fh ); |
| 410 | 440 | ||
| 411 | return true; | 441 | return true; |
| 412 | } | 442 | } |
| 413 | 443 | ||
| 414 | bool Bu::BitString::readFromFile( FILE *fh ) | 444 | bool Bu::BitString::readFromFile( FILE *fh ) |
| 415 | { | 445 | { |
| 416 | fread( &nBits, sizeof(long), 1, fh ); | 446 | fread( &iBits, sizeof(long), 1, fh ); |
| 417 | 447 | ||
| 418 | nBytes = bitsToBytes( nBits ); | 448 | iBytes = bitsToBytes( iBits ); |
| 419 | if( caData ) delete[] caData; | 449 | if( caData ) delete[] caData; |
| 420 | caData = new unsigned char[nBytes]; | 450 | caData = new unsigned char[iBytes]; |
| 421 | 451 | ||
| 422 | fread( caData, sizeof(char), nBytes, fh ); | 452 | fread( caData, sizeof(char), iBytes, fh ); |
| 423 | 453 | ||
| 424 | if( (nBits%8 == 0) ) | 454 | setMask(); |
| 425 | { | ||
| 426 | cTopByteMask = 0xFF; | ||
| 427 | } | ||
| 428 | else | ||
| 429 | { | ||
| 430 | cTopByteMask = 0; | ||
| 431 | for( int j = 0; j < (nBits%8); j++ ) | ||
| 432 | { | ||
| 433 | cTopByteMask |= (1<<j); | ||
| 434 | } | ||
| 435 | } | ||
| 436 | 455 | ||
| 437 | fixup(); | 456 | fixup(); |
| 438 | 457 | ||
diff --git a/src/bitstring.h b/src/bitstring.h index 8052691..f124d2d 100644 --- a/src/bitstring.h +++ b/src/bitstring.h | |||
| @@ -1,6 +1,8 @@ | |||
| 1 | #ifndef BU_BITSTRING_H | 1 | #ifndef BU_BITSTRING_H |
| 2 | #define BU_BITSTRING_H | 2 | #define BU_BITSTRING_H |
| 3 | 3 | ||
| 4 | #include "bu/util.h" | ||
| 5 | |||
| 4 | namespace Bu | 6 | namespace Bu |
| 5 | { | 7 | { |
| 6 | /** | 8 | /** |
| @@ -18,32 +20,32 @@ namespace Bu | |||
| 18 | { | 20 | { |
| 19 | public: | 21 | public: |
| 20 | /** | 22 | /** |
| 21 | * Constructs a blank and basic BitString. This is actually useful since | 23 | * Constructs a blank and basic BitString. This is actually useful |
| 22 | * you can resize BitStrings at will, and even retain the data that was | 24 | * since you can resize BitStrings at will, and even retain the data |
| 23 | * in them. | 25 | * that was in them. |
| 24 | */ | 26 | */ |
| 25 | BitString(); | 27 | BitString(); |
| 26 | 28 | ||
| 27 | /** | 29 | /** |
| 28 | * Constructs a BitString object as a copy of another BitString. This is | 30 | * Constructs a BitString object as a copy of another BitString. This |
| 29 | * a standard copy constructor and produces an exact duplicate of the | 31 | * is a standard copy constructor and produces an exact duplicate of |
| 30 | * original BitString object. | 32 | * the original BitString object. |
| 31 | *@param xSrc Source BitString to copy data from. | 33 | *@param xSrc Source BitString to copy data from. |
| 32 | */ | 34 | */ |
| 33 | BitString( const BitString &xSrc ); | 35 | BitString( const BitString &xSrc ); |
| 34 | 36 | ||
| 35 | /** | 37 | /** |
| 36 | * Constructs a BitString with length nBits and optionally fills it with | 38 | * Constructs a BitString with length iBits and optionally fills it with |
| 37 | * random data. The default setting, to not fill randomly, will produce | 39 | * random data. The default setting, to not fill randomly, will produce |
| 38 | * a blank (all zeros) string of the specified size. | 40 | * a blank (all zeros) string of the specified size. |
| 39 | *@param nBits The length of the new BitString in bits. | 41 | *@param iBits The length of the new BitString in bits. |
| 40 | *@param bFillRandomly Wether or not to randomize this BitString. | 42 | *@param bFillRandomly Wether or not to randomize this BitString. |
| 41 | */ | 43 | */ |
| 42 | BitString( long nBits, bool bFillRandomly=false ); | 44 | BitString( long iBits, bool bFillRandomly=false ); |
| 43 | 45 | ||
| 44 | /** | 46 | /** |
| 45 | * Virtual deconstructor for the BitString. Takes care of cleanup for you. | 47 | * Virtual deconstructor for the BitString. Takes care of cleanup for |
| 46 | * What more do you really want to know? | 48 | * you. What more do you really want to know? |
| 47 | */ | 49 | */ |
| 48 | virtual ~BitString(); | 50 | virtual ~BitString(); |
| 49 | 51 | ||
| @@ -52,86 +54,94 @@ namespace Bu | |||
| 52 | * Sets a bit in the BitString. In it's normal mode it will always turn | 54 | * Sets a bit in the BitString. In it's normal mode it will always turn |
| 53 | * the given bit on, to clear a bit set bBitState to false instead of | 55 | * the given bit on, to clear a bit set bBitState to false instead of |
| 54 | * true. This operation runs in O(1). | 56 | * true. This operation runs in O(1). |
| 55 | *@param nBit The zero-based index of the bit to modify. | 57 | *@param iBit The zero-based index of the bit to modify. |
| 56 | *@param bBitState Set to true to set the bit to 1, set to false to set | 58 | *@param bBitState Set to true to set the bit to 1, set to false to set |
| 57 | * the bit to 0. | 59 | * the bit to 0. |
| 58 | */ | 60 | */ |
| 59 | void setBit( long nBit, bool bBitState=true ); | 61 | void setBit( long iBit, bool bBitState=true ); |
| 60 | 62 | ||
| 61 | /** | 63 | /** |
| 62 | * Reverses the state of the given bit. This will set the given bit to a | 64 | * Reverses the state of the given bit. This will set the given bit |
| 63 | * 1 if it was 0, and to 0 if it was 1. This operation runs in O(1), and | 65 | * to a 1 if it was 0, and to 0 if it was 1. This operation runs in |
| 64 | * it should be noted that using this is marginally faster than doing the | 66 | * O(1), and it should be noted that using this is marginally faster |
| 65 | * test and flip yourself with getBit and setBit since it uses a bitwise | 67 | * than doing the test and flip yourself with getBit and setBit since |
| 66 | * not operation and doesn't actually test the bit itself. | 68 | * it uses a bitwise not operation and doesn't actually test the bit |
| 67 | *@param nBit The index of the bit to flip. | 69 | * itself. |
| 70 | *@param iBit The index of the bit to flip. | ||
| 68 | */ | 71 | */ |
| 69 | void flipBit( long nBit ); | 72 | void flipBit( long iBit ); |
| 70 | 73 | ||
| 71 | /** | 74 | /** |
| 72 | * Gets the state of the given bit. This follows the standard convention | 75 | * Gets the state of the given bit. This follows the standard |
| 73 | * used so far, a returned value of true means the bit in question is 1, | 76 | * convention used so far, a returned value of true means the bit in |
| 74 | * and a value of flase means the bit is 0. All bits out of range of the | 77 | * question is 1, and a value of flase means the bit is 0. All bits |
| 75 | * BitString are treated as off, but are "accessable" in that this does not | 78 | * out of range of the BitString are treated as off, but are |
| 76 | * produce any kind of error message. This is intentional. This operation | 79 | * "accessable" in that this does not produce any kind of error |
| 77 | * runs in O(1). | 80 | * message. This is intentional. This operation runs in O(1). |
| 78 | *@param nBit The index of the bit to test. | 81 | *@param iBit The index of the bit to test. |
| 79 | *@returns True for a 1, false for a 0. | 82 | *@returns True for a 1, false for a 0. |
| 80 | */ | 83 | */ |
| 81 | bool getBit( long nBit ); | 84 | bool getBit( long iBit ); |
| 82 | 85 | ||
| 83 | /** | 86 | /** |
| 84 | * Inverts the entire BitString, in effect this calls flipBit on every bit | 87 | * Inverts the entire BitString, in effect this calls flipBit on every |
| 85 | * in the string but is faster since it can operate on whole bytes at a | 88 | * bit in the string but is faster since it can operate on whole bytes |
| 86 | * time instead of individual bits. This operation runs in O(N). | 89 | * at a time instead of individual bits. This operation runs in O(N). |
| 87 | */ | 90 | */ |
| 88 | void invert(); | 91 | void invert(); |
| 89 | 92 | ||
| 90 | /** | 93 | /** |
| 91 | * Returns the number of bits allocated in this BitString. This operation | 94 | * Returns the number of bits allocated in this BitString. This |
| 92 | * runs in O(N) time since this value is cached and not computed. | 95 | * operation runs in O(1) time since this value is cached and not |
| 96 | * computed. | ||
| 93 | *@returns The number of bits allocated in this BitString. | 97 | *@returns The number of bits allocated in this BitString. |
| 94 | */ | 98 | */ |
| 99 | DEPRECATED | ||
| 95 | long getBitLength(); | 100 | long getBitLength(); |
| 96 | 101 | ||
| 102 | long getSize(); | ||
| 103 | |||
| 97 | /** | 104 | /** |
| 98 | * Sets the entire BitString to zeros, but it does it very quickly. This | 105 | * Sets the entire BitString to zeros, but it does it very quickly. |
| 99 | * operation runs in O(N). | 106 | * This operation runs in O(N). |
| 100 | */ | 107 | */ |
| 101 | void clearString(); | 108 | void clear(); |
| 102 | 109 | ||
| 103 | /** | 110 | /** |
| 104 | * Gets another BitString that is autonomous of the current one (contains | 111 | * Gets another BitString that is autonomous of the current one |
| 105 | * a copy of the memory, not a pointer) and contains a subset of the data | 112 | * (contains a copy of the memory, not a pointer) and contains a subset |
| 106 | * in the current BitString. This is an inclusive operation, so grabbing | 113 | * of the data in the current BitString. This is an inclusive |
| 107 | * bits 0-5 will give you 6 bits. This is based on a very tricky | 114 | * operation, so grabbing bits 0-5 will give you 6 bits. This is based |
| 108 | * bit-shifting algorithm and runs very quickly, in O(N) time. | 115 | * on a very tricky bit-shifting algorithm and runs very quickly, in |
| 109 | * Passing in a value of zero for nUpper, or any value for nUpper that is | 116 | * O(N) time. Passing in a value of zero for iUpper, or any value for |
| 110 | * less than nLower will set nUpper equal to the number of bits in the | 117 | * iUpper that is less than iLower will set iUpper equal to the number |
| 111 | * BitString. | 118 | * of bits in the BitString. |
| 112 | *@param nLower The first bit in the current string, will be the first bit | 119 | *@param iLower The first bit in the current string, will be the first |
| 113 | * (0 index) in the new sub string. | 120 | * bit (0 index) in the new sub string. |
| 114 | *@param nUpper The last bit in the current string, will be the last bit in | 121 | *@param iUpper The last bit in the current string, will be the last |
| 115 | * the new sub string. nUpper is included in the sub string. | 122 | * bit in the new sub string. iUpper is included in the sub string. |
| 116 | *@returns A new BitString object ready to be used. Please note that | 123 | *@returns A new BitString object ready to be used. Please note that |
| 117 | * managing this new object is up to whomever calls this function. | 124 | * managing this new object is up to whomever calls this function. |
| 118 | */ | 125 | */ |
| 119 | class BitString getSubString( long nLower, long nUpper ); | 126 | class BitString getSubString( long iLower, long iUpper ); |
| 120 | 127 | ||
| 121 | /** | 128 | /** |
| 122 | * Sets the number of bits in the BitString, allocating more memory if | 129 | * Sets the number of bits in the BitString, allocating more memory if |
| 123 | * necesarry, or freeing extra if able. The default operation of this | 130 | * necesarry, or freeing extra if able. The default operation of this |
| 124 | * function clears all data in the BitString while resizing it. If you | 131 | * function clears all data in the BitString while resizing it. If you |
| 125 | * would like to keep as much of the data that you had in your BitString | 132 | * would like to keep as much of the data that you had in your BitString |
| 126 | * as possible, then set bClear to false, and any data that will fit into | 133 | * as possible, then set bClear to false, and any data that will fit |
| 127 | * the new BitString length will be retained. If increasing the number of | 134 | * into the new BitString length will be retained. If increasing the |
| 128 | * bits, the new bits will come into existance cleared (set to 0). | 135 | * number of bits, the new bits will come into existance cleared (set |
| 129 | *@param nLength The number of bits to set the BitString to. | 136 | * to 0). |
| 130 | *@param bClear When true, all data is eradicated and zeroed, when set to | 137 | *@param iLength The number of bits to set the BitString to. |
| 131 | * false an effort is made to retain the existing data. | 138 | *@param bClear When true, all data is eradicated and zeroed, when set |
| 139 | * to false an effort is made to retain the existing data. | ||
| 132 | *@returns true on success, false on failure. | 140 | *@returns true on success, false on failure. |
| 133 | */ | 141 | */ |
| 134 | bool setBitLength( long nLength, bool bClear=true ); | 142 | DEPRECATED |
| 143 | bool setBitLength( long iLength, bool bClear=true ); | ||
| 144 | bool setSize( long iLength, bool bClear=true ); | ||
| 135 | 145 | ||
| 136 | /** | 146 | /** |
| 137 | * Randomize the entire BitString, one bit at a time. This is actually | 147 | * Randomize the entire BitString, one bit at a time. This is actually |
| @@ -145,55 +155,57 @@ namespace Bu | |||
| 145 | * Operates exactly like <<. All data in the BitString is shifted to | 155 | * Operates exactly like <<. All data in the BitString is shifted to |
| 146 | * the left by some number of bits, any data pushed off the edge of the | 156 | * the left by some number of bits, any data pushed off the edge of the |
| 147 | * BitString is lost, and all new data coming in will be zeroed. | 157 | * BitString is lost, and all new data coming in will be zeroed. |
| 148 | * Using a negative value in the shiftLeft function will turn it into the | 158 | * Using a negative value in the shiftLeft function will turn it into |
| 149 | * shiftRight function. | 159 | * the shiftRight function. |
| 150 | *@param nAmt The number of bit positions to shift all data. | 160 | *@param iAmt The number of bit positions to shift all data. |
| 151 | */ | 161 | */ |
| 152 | void shiftLeft( long nAmt ); // just like << | 162 | void shiftLeft( long iAmt ); // just like << |
| 153 | 163 | ||
| 154 | /** | 164 | /** |
| 155 | * Operates exactly like >>. All data in the BitString is shifted to | 165 | * Operates exactly like >>. All data in the BitString is shifted to |
| 156 | * the right by some number of bits, any data pushed off the edge of the | 166 | * the right by some number of bits, any data pushed off the edge of the |
| 157 | * BitString is lost, and all new data coming in will be zeroed. | 167 | * BitString is lost, and all new data coming in will be zeroed. |
| 158 | * Using a negative value in the shiftRight function will turn it into the | 168 | * Using a negative value in the shiftRight function will turn it into |
| 159 | * shiftLeft function. | 169 | * the shiftLeft function. |
| 160 | *@param nAmt The number of bit positions to shift all data. | 170 | *@param iAmt The number of bit positions to shift all data. |
| 161 | */ | 171 | */ |
| 162 | void shiftRight( long nAmt ); // just like >> | 172 | void shiftRight( long iAmt ); // just like >> |
| 163 | 173 | ||
| 164 | /** | 174 | /** |
| 165 | * Searches through the BitString and returns the index of the highest | 175 | * Searches through the BitString and returns the index of the highest |
| 166 | * order bit position (the highest index) with an on bit (a bit set to 1). | 176 | * order bit position (the highest index) with an on bit (a bit set to |
| 167 | * This is a handy helper function and rather faster than calling getBit() | 177 | * 1). This is a handy helper function and rather faster than calling |
| 168 | * over and over again. | 178 | * getBit() over and over again. |
| 169 | *@returns The index of the highest indexed on bit. | 179 | *@returns The index of the highest indexed on bit. |
| 170 | */ | 180 | */ |
| 171 | long getHighestOrderBitPos(); | 181 | long getHighestOrderBitPos(); |
| 172 | 182 | ||
| 173 | // Conversion | 183 | // Conversion |
| 174 | /** | 184 | /** |
| 175 | * Convert a block of data (no more than 32 bits) to a primitive long type. | 185 | * Convert a block of data (no more than 32 bits) to a primitive long |
| 186 | * type. | ||
| 176 | * This is done in a little bit interesting way, so it may not always be | 187 | * This is done in a little bit interesting way, so it may not always be |
| 177 | * the fastest way to access the data that you want, although it will | 188 | * the fastest way to access the data that you want, although it will |
| 178 | * always ensure that the long that is written makes numerical sense, as | 189 | * always ensure that the long that is written makes numerical sense, as |
| 179 | * we write numbers, regaurdless of platform. | 190 | * we write numbers, regaurdless of platform. |
| 180 | *@param nStart The first bit in the BitString to include in the long | 191 | *@param iStart The first bit in the BitString to include in the long |
| 181 | *@param nSize THe number of bits to include, if this value is set over | 192 | *@param iSize THe number of bits to include, if this value is set over |
| 182 | * 32 it will be automatically truncated to, or however many bits there | 193 | * 32 it will be automatically truncated to, or however many bits there |
| 183 | * are in a long in your system. | 194 | * are in a long in your system. |
| 184 | *@returns A long converted from your raw BitString data. | 195 | *@returns A long converted from your raw BitString data. |
| 185 | */ | 196 | */ |
| 186 | long toLong( long nStart = 0, long nSize = 32 ); | 197 | long toLong( long iStart = 0, long iSize = 32 ); |
| 187 | 198 | ||
| 188 | /** | 199 | /** |
| 189 | * Converts the data into a human-readable SString object. SString is | 200 | * Converts the data into a human-readable SString object. SString is |
| 190 | * used to make transport of the string and management very simple. Since | 201 | * used to make transport of the string and management very simple. |
| 191 | * BitStrings will generally be longer than your average strip of ints a | 202 | * Since BitStrings will generally be longer than your average strip of |
| 192 | * faculty is included and turned on by default that will insert spacers | 203 | * ints a faculty is included and turned on by default that will insert |
| 193 | * into the output text every 8 places. For debugging work, this is | 204 | * spacers into the output text every 8 places. For debugging work, |
| 194 | * definately reccomended. | 205 | * this is definately reccomended. |
| 195 | *@param bAddSpacers Leave set to true in order to have the output broken | 206 | *@param bAddSpacers Leave set to true in order to have the output |
| 196 | * into logical groupings of 8 bits per block. Set to off to have a harder | 207 | * broken into logical groupings of 8 bits per block. Set to off to |
| 208 | * have a harder | ||
| 197 | * to read solid block of bits. | 209 | * to read solid block of bits. |
| 198 | *@returns A SString object containing the produced string. | 210 | *@returns A SString object containing the produced string. |
| 199 | */ | 211 | */ |
| @@ -202,24 +214,25 @@ namespace Bu | |||
| 202 | // Utility | 214 | // Utility |
| 203 | /** | 215 | /** |
| 204 | * Converts the given number of bits into the smallest allocatable unit, | 216 | * Converts the given number of bits into the smallest allocatable unit, |
| 205 | * which is bytes in C and on most systems nowadays. This is the minimum | 217 | * which is bytes in C and on most systems nowadays. This is the |
| 206 | * number of bytes needed to contain the given number of bits, so there is | 218 | * minimum number of bytes needed to contain the given number of bits, |
| 207 | * generally some slop if they are not evenly divisible. | 219 | * so there is generally some slop if they are not evenly divisible. |
| 208 | *@param nBits The number of bits you wish to use. | 220 | *@param iBits The number of bits you wish to use. |
| 209 | *@returns The number of bytes you will need to contain the given number | 221 | *@returns The number of bytes you will need to contain the given number |
| 210 | * of bits. | 222 | * of bits. |
| 211 | */ | 223 | */ |
| 212 | //static long bitsToBytes( long nBits ); | 224 | //static long bitsToBytes( long iBits ); |
| 213 | 225 | ||
| 214 | /** | 226 | /** |
| 215 | * Writes all data in the BitString, including a small header block | 227 | * Writes all data in the BitString, including a small header block |
| 216 | * describing the number of bits in the BitString to the file described | 228 | * describing the number of bits in the BitString to the file described |
| 217 | * by the given file descriptor. The data writen is purely sequential and | 229 | * by the given file descriptor. The data writen is purely sequential |
| 218 | * probably not too easy to read by other mechanisms, although the | 230 | * and probably not too easy to read by other mechanisms, although the |
| 219 | * readFromFile function should always be able to do it. This function | 231 | * readFromFile function should always be able to do it. This function |
| 220 | * does not open nor close the file pointed to by fh. | 232 | * does not open nor close the file pointed to by fh. |
| 221 | *@param fh The file descriptor of the file to write the data to. | 233 | *@param fh The file descriptor of the file to write the data to. |
| 222 | *@returns true if the operation completed without error, false otherwise. | 234 | *@returns true if the operation completed without error, false |
| 235 | * otherwise. | ||
| 223 | */ | 236 | */ |
| 224 | //bool writeToFile( FILE *fh ); | 237 | //bool writeToFile( FILE *fh ); |
| 225 | 238 | ||
| @@ -229,21 +242,23 @@ namespace Bu | |||
| 229 | * original BitString that it may be replacing. This function does not | 242 | * original BitString that it may be replacing. This function does not |
| 230 | * open nor close the file pointed to by fh. | 243 | * open nor close the file pointed to by fh. |
| 231 | *@param fh The file descriptor to try to read the data from. | 244 | *@param fh The file descriptor to try to read the data from. |
| 232 | *@returns true if the operation completed without error, false otherwise. | 245 | *@returns true if the operation completed without error, false |
| 246 | * otherwise. | ||
| 233 | */ | 247 | */ |
| 234 | //bool readFromFile( FILE *fh ); | 248 | //bool readFromFile( FILE *fh ); |
| 235 | 249 | ||
| 236 | //operators | 250 | //operators |
| 237 | BitString &operator=( const BitString &xSrc ); | 251 | BitString &operator=( const BitString &xSrc ); |
| 238 | BitString operator~(); | 252 | BitString operator~(); |
| 239 | BitString operator<<( const long nAmt ); | 253 | BitString operator<<( const long iAmt ); |
| 240 | BitString operator>>( const long nAmt ); | 254 | BitString operator>>( const long iAmt ); |
| 241 | 255 | ||
| 242 | private: | 256 | private: |
| 243 | void fixup(); | 257 | void fixup(); |
| 258 | void setMask(); | ||
| 244 | unsigned char *caData; | 259 | unsigned char *caData; |
| 245 | long nBits; | 260 | long iBits; |
| 246 | long nBytes; | 261 | long iBytes; |
| 247 | unsigned char cTopByteMask; | 262 | unsigned char cTopByteMask; |
| 248 | }; | 263 | }; |
| 249 | }; | 264 | }; |
| @@ -32,6 +32,7 @@ namespace Bu | |||
| 32 | virtual void close(); | 32 | virtual void close(); |
| 33 | virtual size_t read( void *pBuf, size_t nBytes ); | 33 | virtual size_t read( void *pBuf, size_t nBytes ); |
| 34 | virtual size_t write( const void *pBuf, size_t nBytes ); | 34 | virtual size_t write( const void *pBuf, size_t nBytes ); |
| 35 | using Stream::write; | ||
| 35 | 36 | ||
| 36 | virtual long tell(); | 37 | virtual long tell(); |
| 37 | virtual void seek( long offset ); | 38 | virtual void seek( long offset ); |
diff --git a/src/fstring.h b/src/fstring.h index 31b55d2..a9b4c95 100644 --- a/src/fstring.h +++ b/src/fstring.h | |||
| @@ -19,21 +19,12 @@ | |||
| 19 | #include "bu/archival.h" | 19 | #include "bu/archival.h" |
| 20 | #include "bu/archive.h" | 20 | #include "bu/archive.h" |
| 21 | #include "bu/hash.h" | 21 | #include "bu/hash.h" |
| 22 | #include "bu/util.h" | ||
| 22 | 23 | ||
| 23 | #ifndef min | 24 | #ifndef min |
| 24 | #define min( a, b ) ((a<b)?(a):(b)) | 25 | #define min( a, b ) ((a<b)?(a):(b)) |
| 25 | #endif | 26 | #endif |
| 26 | 27 | ||
| 27 | /* I borrowed this from someone who borrowed it from glib who borrowed it | ||
| 28 | * from... | ||
| 29 | */ | ||
| 30 | #if (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)) | ||
| 31 | #define DEPRECATED __attribute__((__deprecated__)) | ||
| 32 | #else | ||
| 33 | #define DEPRECATED | ||
| 34 | #endif /* __GNUC__ */ | ||
| 35 | |||
| 36 | |||
| 37 | namespace Bu | 28 | namespace Bu |
| 38 | { | 29 | { |
| 39 | template< typename chr > | 30 | template< typename chr > |
| @@ -16,6 +16,7 @@ | |||
| 16 | #include <utility> | 16 | #include <utility> |
| 17 | #include "bu/exceptionbase.h" | 17 | #include "bu/exceptionbase.h" |
| 18 | #include "bu/list.h" | 18 | #include "bu/list.h" |
| 19 | #include "bu/util.h" | ||
| 19 | ///#include "archival.h" | 20 | ///#include "archival.h" |
| 20 | ///#include "archive.h" | 21 | ///#include "archive.h" |
| 21 | 22 | ||
| @@ -97,6 +98,7 @@ namespace Bu | |||
| 97 | * Direct function for retrieving a value out of the HashProxy. | 98 | * Direct function for retrieving a value out of the HashProxy. |
| 98 | *@returns (value_type &) The value pointed to by this HashProxy. | 99 | *@returns (value_type &) The value pointed to by this HashProxy. |
| 99 | */ | 100 | */ |
| 101 | DEPRECATED | ||
| 100 | _value &value() | 102 | _value &value() |
| 101 | { | 103 | { |
| 102 | if( bFilled == false ) | 104 | if( bFilled == false ) |
| @@ -106,6 +108,20 @@ namespace Bu | |||
| 106 | ); | 108 | ); |
| 107 | return *pValue; | 109 | return *pValue; |
| 108 | } | 110 | } |
| 111 | |||
| 112 | /** | ||
| 113 | * Direct function for retrieving a value out of the HashProxy. | ||
| 114 | *@returns (value_type &) The value pointed to by this HashProxy. | ||
| 115 | */ | ||
| 116 | _value &getValue() | ||
| 117 | { | ||
| 118 | if( bFilled == false ) | ||
| 119 | throw HashException( | ||
| 120 | excodeNotFilled, | ||
| 121 | "No data assosiated with that key." | ||
| 122 | ); | ||
| 123 | return *pValue; | ||
| 124 | } | ||
| 109 | 125 | ||
| 110 | /** | 126 | /** |
| 111 | * Whether this HashProxy points to something real or not. | 127 | * Whether this HashProxy points to something real or not. |
| @@ -165,7 +181,39 @@ namespace Bu | |||
| 165 | }; | 181 | }; |
| 166 | 182 | ||
| 167 | /** | 183 | /** |
| 168 | * Libbu Template Hash Table | 184 | * Libbu++ Template Hash Table. This is your average hash table, that uses |
| 185 | * template functions in order to do fast, efficient, generalized hashing. | ||
| 186 | * It's pretty easy to use, and works well with all other libbu++ types so | ||
| 187 | * far. | ||
| 188 | * | ||
| 189 | * In order to use it, I recommend the following for all basic usage: | ||
| 190 | *@code | ||
| 191 | // Define a Hash typedef with strings as keys and ints as values. | ||
| 192 | typedef Bu::Hash<Bu::FString, int> StrIntHash; | ||
| 193 | |||
| 194 | // Create one | ||
| 195 | StrIntHash hInts; | ||
| 196 | |||
| 197 | // Insert some integers | ||
| 198 | hInts["one"] = 1; | ||
| 199 | hInts["forty-two"] = 42; | ||
| 200 | hInts.insert("forty two", 42 ); | ||
| 201 | |||
| 202 | // Get values out of the hash, the last two options are the most explicit, | ||
| 203 | // and must be used if the hash's value type does not match what you're | ||
| 204 | // comparing to exactly. | ||
| 205 | if( hInts["one"] == 1 ) doSomething(); | ||
| 206 | if( hInts["forty-two"].value() == 42 ) doSomething(); | ||
| 207 | if( hInts.get("forty two") == 42 ) doSomething(); | ||
| 208 | |||
| 209 | // Iterate through the Hash | ||
| 210 | for( StrIntHash::iterator i = hInts.begin(); i != hInts.end(); i++ ) | ||
| 211 | { | ||
| 212 | // i.getValue() works too | ||
| 213 | print("'%s' = %d\n", i.getKey().getStr(), (*i) ); | ||
| 214 | } | ||
| 215 | |||
| 216 | @endcode | ||
| 169 | *@param key (typename) The datatype of the hashtable keys | 217 | *@param key (typename) The datatype of the hashtable keys |
| 170 | *@param value (typename) The datatype of the hashtable data | 218 | *@param value (typename) The datatype of the hashtable data |
| 171 | *@param sizecalc (typename) Functor to compute new table size on rehash | 219 | *@param sizecalc (typename) Functor to compute new table size on rehash |
diff --git a/src/nids.cpp b/src/nids.cpp index b8ea13b..41c4dc1 100644 --- a/src/nids.cpp +++ b/src/nids.cpp | |||
| @@ -1,8 +1,30 @@ | |||
| 1 | #include "bu/nids.h" | 1 | #include "bu/nids.h" |
| 2 | #include "bu/stream.h" | ||
| 3 | #include "bu/nidsstream.h" | ||
| 4 | #include <stdio.h> | ||
| 2 | 5 | ||
| 3 | Bu::Nids::Nids( Bu::Stream &sStore ) : | 6 | Bu::Nids::Nids( Bu::Stream &sStore ) : |
| 4 | sStore( sStore ) | 7 | sStore( sStore ) |
| 5 | { | 8 | { |
| 9 | printf("Stream caps:\n" | ||
| 10 | " canRead: %s\n" | ||
| 11 | " canWrite: %s\n" | ||
| 12 | " isReadable: %s\n" | ||
| 13 | " isWritable: %s\n" | ||
| 14 | " isSeekable: %s\n" | ||
| 15 | " isBlocking: %s\n" | ||
| 16 | " isEOS: %s\n" | ||
| 17 | " isOpen: %s\n", | ||
| 18 | sStore.canRead()?"yes":"no", | ||
| 19 | sStore.canWrite()?"yes":"no", | ||
| 20 | sStore.isReadable()?"yes":"no", | ||
| 21 | sStore.isWritable()?"yes":"no", | ||
| 22 | sStore.isSeekable()?"yes":"no", | ||
| 23 | sStore.isBlocking()?"yes":"no", | ||
| 24 | sStore.isEOS()?"yes":"no", | ||
| 25 | sStore.isOpen()?"yes":"no" | ||
| 26 | ); | ||
| 27 | printf("sizeof(Block) = %db\n", sizeof(Block) ); | ||
| 6 | } | 28 | } |
| 7 | 29 | ||
| 8 | Bu::Nids::~Nids() | 30 | Bu::Nids::~Nids() |
| @@ -11,11 +33,82 @@ Bu::Nids::~Nids() | |||
| 11 | 33 | ||
| 12 | void Bu::Nids::initialize( int iBlockSize, int iPreAllocate ) | 34 | void Bu::Nids::initialize( int iBlockSize, int iPreAllocate ) |
| 13 | { | 35 | { |
| 36 | char cBuf = 0; | ||
| 37 | int iBuf = 0; | ||
| 38 | |||
| 39 | // Magic number | ||
| 40 | sStore.write( "\xFF\xC3\x99\xBD", 4 ); | ||
| 41 | |||
| 42 | // Version (0) | ||
| 43 | sStore.write( &cBuf, 1 ); | ||
| 44 | |||
| 45 | // Bytes per int | ||
| 46 | cBuf = 4; | ||
| 47 | sStore.write( &cBuf, 1 ); | ||
| 48 | |||
| 49 | // The size of each block and the number of blocks we're pre-allocating | ||
| 50 | sStore.write( &iBlockSize, 4 ); | ||
| 51 | sStore.write( &iPreAllocate, 4 ); | ||
| 52 | |||
| 53 | // The number of used blocks | ||
| 54 | sStore.write( &iBuf, 4 ); | ||
| 55 | |||
| 56 | // Reserved space | ||
| 57 | sStore.write( "\x00\x00\x00\x00\x00\x00\x00", 7 ); | ||
| 58 | |||
| 59 | this->iBlockSize = iBlockSize; | ||
| 60 | this->iBlocks = iPreAllocate; | ||
| 61 | this->iBlockStart = sStore.tell(); | ||
| 62 | bsBlockUsed.setSize( iPreAllocate, true ); | ||
| 63 | |||
| 64 | printf("%d blocks, %db each, %db block offset\n", | ||
| 65 | iBlocks, iBlockSize, iBlockStart ); | ||
| 66 | |||
| 67 | char *block = new char[iBlockSize]; | ||
| 68 | memset( block, 0, iBlockSize ); | ||
| 69 | for( int j = 0; j < iPreAllocate; j++ ) | ||
| 70 | { | ||
| 71 | sStore.write( block, iBlockSize ); | ||
| 72 | } | ||
| 14 | } | 73 | } |
| 15 | 74 | ||
| 16 | int Bu::Nids::createStream( int iPreAllocate ) | 75 | int Bu::Nids::createStream( int iPreAllocate ) |
| 17 | { | 76 | { |
| 77 | for( int j = 0; j < iBlocks; j++ ) | ||
| 78 | { | ||
| 79 | if( !bsBlockUsed.getBit( j ) ) | ||
| 80 | { | ||
| 81 | Block b = { j, blockUnused, blockUnused, 0, 0 }; | ||
| 82 | bsBlockUsed.setBit( j ); | ||
| 83 | sStore.setPos( iBlockStart+(iBlockSize*j) ); | ||
| 84 | sStore.write( &b, sizeof(b) ); | ||
| 85 | } | ||
| 86 | } | ||
| 18 | return 0; | 87 | return 0; |
| 19 | } | 88 | } |
| 20 | 89 | ||
| 90 | void Bu::Nids::deleteStream( int iID ) | ||
| 91 | { | ||
| 92 | } | ||
| 93 | |||
| 94 | Bu::NidsStream Bu::Nids::openStream( int iID ) | ||
| 95 | { | ||
| 96 | return NidsStream( *this ); | ||
| 97 | } | ||
| 98 | |||
| 99 | void Bu::Nids::extendStream( int iID, int iBlockCount ) | ||
| 100 | { | ||
| 101 | } | ||
| 102 | |||
| 103 | void Bu::Nids::getBlock( int iIndex, Bu::Nids::Block *pBlock ) | ||
| 104 | { | ||
| 105 | sStore.setPos( iBlockStart + (iBlockSize*iIndex) ); | ||
| 106 | sStore.read( pBlock, iBlockSize ); | ||
| 107 | } | ||
| 108 | |||
| 109 | void Bu::Nids::setBlock( int iIndex, Bu::Nids::Block *pBlock ) | ||
| 110 | { | ||
| 111 | sStore.setPos( iBlockStart + (iBlockSize*iIndex) ); | ||
| 112 | sStore.write( pBlock, iBlockSize ); | ||
| 113 | } | ||
| 21 | 114 | ||
| @@ -1,9 +1,13 @@ | |||
| 1 | #ifndef BU_NIDS_H | 1 | #ifndef BU_NIDS_H |
| 2 | #define BU_NIDS_H | 2 | #define BU_NIDS_H |
| 3 | 3 | ||
| 4 | #include <stdint.h> | ||
| 5 | #include "bu/bitstring.h" | ||
| 6 | |||
| 4 | namespace Bu | 7 | namespace Bu |
| 5 | { | 8 | { |
| 6 | class Stream; | 9 | class Stream; |
| 10 | class NidsStream; | ||
| 7 | 11 | ||
| 8 | /** | 12 | /** |
| 9 | * Numerically Indexed Data Streams. This is a working name so I can | 13 | * Numerically Indexed Data Streams. This is a working name so I can |
| @@ -14,6 +18,7 @@ namespace Bu | |||
| 14 | */ | 18 | */ |
| 15 | class Nids | 19 | class Nids |
| 16 | { | 20 | { |
| 21 | friend class NidsStream; | ||
| 17 | public: | 22 | public: |
| 18 | Nids( Bu::Stream &sStore ); | 23 | Nids( Bu::Stream &sStore ); |
| 19 | virtual ~Nids(); | 24 | virtual ~Nids(); |
| @@ -39,10 +44,34 @@ namespace Bu | |||
| 39 | /** | 44 | /** |
| 40 | * Return a new Stream object assosiated with the given stream ID. | 45 | * Return a new Stream object assosiated with the given stream ID. |
| 41 | */ | 46 | */ |
| 42 | Bu::Stream &openStream( int iID ); | 47 | NidsStream openStream( int iID ); |
| 48 | |||
| 49 | private: | ||
| 50 | typedef struct Block | ||
| 51 | { | ||
| 52 | uint32_t iFirstBlock; | ||
| 53 | uint32_t iNextBlock; | ||
| 54 | uint32_t iPrevBlock; | ||
| 55 | uint32_t iBytesUsed; | ||
| 56 | uint32_t iReserved; | ||
| 57 | unsigned char pData[0]; | ||
| 58 | } Block; | ||
| 59 | |||
| 60 | enum | ||
| 61 | { | ||
| 62 | blockUnused = 0xFFFFFFFFUL | ||
| 63 | }; | ||
| 64 | |||
| 65 | void extendStream( int iID, int iBlockCount=1 ); | ||
| 66 | void getBlock( int iIndex, struct Nids::Block *pBlock ); | ||
| 67 | void setBlock( int iIndex, struct Nids::Block *pBlock ); | ||
| 43 | 68 | ||
| 44 | private: | 69 | private: |
| 45 | Bu::Stream &sStore; | 70 | Bu::Stream &sStore; |
| 71 | int iBlockSize; | ||
| 72 | int iBlocks; | ||
| 73 | int iBlockStart; | ||
| 74 | Bu::BitString bsBlockUsed; | ||
| 46 | }; | 75 | }; |
| 47 | }; | 76 | }; |
| 48 | 77 | ||
diff --git a/src/nidsstream.cpp b/src/nidsstream.cpp index d05fbc0..e3bd731 100644 --- a/src/nidsstream.cpp +++ b/src/nidsstream.cpp | |||
| @@ -1,10 +1,96 @@ | |||
| 1 | #include "bu/nidsstream.h" | 1 | #include "bu/nidsstream.h" |
| 2 | 2 | ||
| 3 | Bu::NidsStream::NidsStream() | 3 | Bu::NidsStream::NidsStream( Nids &rNids ) : |
| 4 | rNids( rNids ) | ||
| 4 | { | 5 | { |
| 5 | } | 6 | } |
| 6 | 7 | ||
| 8 | Bu::NidsStream::NidsStream( const Bu::NidsStream &rSrc ) : | ||
| 9 | rNids( rSrc.rNids ) | ||
| 10 | { | ||
| 11 | |||
| 12 | } | ||
| 13 | |||
| 7 | Bu::NidsStream::~NidsStream() | 14 | Bu::NidsStream::~NidsStream() |
| 8 | { | 15 | { |
| 9 | } | 16 | } |
| 10 | 17 | ||
| 18 | void Bu::NidsStream::close() | ||
| 19 | { | ||
| 20 | } | ||
| 21 | |||
| 22 | size_t Bu::NidsStream::read( void *pBuf, size_t nBytes ) | ||
| 23 | { | ||
| 24 | return 0; | ||
| 25 | } | ||
| 26 | |||
| 27 | size_t Bu::NidsStream::write( const void *pBuf, size_t nBytes ) | ||
| 28 | { | ||
| 29 | return 0; | ||
| 30 | } | ||
| 31 | |||
| 32 | long Bu::NidsStream::tell() | ||
| 33 | { | ||
| 34 | return 0; | ||
| 35 | } | ||
| 36 | |||
| 37 | void Bu::NidsStream::seek( long offset ) | ||
| 38 | { | ||
| 39 | } | ||
| 40 | |||
| 41 | void Bu::NidsStream::setPos( long pos ) | ||
| 42 | { | ||
| 43 | } | ||
| 44 | |||
| 45 | void Bu::NidsStream::setPosEnd( long pos ) | ||
| 46 | { | ||
| 47 | } | ||
| 48 | |||
| 49 | bool Bu::NidsStream::isEOS() | ||
| 50 | { | ||
| 51 | return true; | ||
| 52 | } | ||
| 53 | |||
| 54 | bool Bu::NidsStream::isOpen() | ||
| 55 | { | ||
| 56 | return true; | ||
| 57 | } | ||
| 58 | |||
| 59 | void Bu::NidsStream::flush() | ||
| 60 | { | ||
| 61 | } | ||
| 62 | |||
| 63 | bool Bu::NidsStream::canRead() | ||
| 64 | { | ||
| 65 | return true; | ||
| 66 | } | ||
| 67 | |||
| 68 | bool Bu::NidsStream::canWrite() | ||
| 69 | { | ||
| 70 | return true; | ||
| 71 | } | ||
| 72 | |||
| 73 | bool Bu::NidsStream::isReadable() | ||
| 74 | { | ||
| 75 | return true; | ||
| 76 | } | ||
| 77 | |||
| 78 | bool Bu::NidsStream::isWritable() | ||
| 79 | { | ||
| 80 | return true; | ||
| 81 | } | ||
| 82 | |||
| 83 | bool Bu::NidsStream::isSeekable() | ||
| 84 | { | ||
| 85 | return true; | ||
| 86 | } | ||
| 87 | |||
| 88 | bool Bu::NidsStream::isBlocking() | ||
| 89 | { | ||
| 90 | return true; | ||
| 91 | } | ||
| 92 | |||
| 93 | void Bu::NidsStream::setBlocking( bool bBlocking ) | ||
| 94 | { | ||
| 95 | } | ||
| 96 | |||
diff --git a/src/nidsstream.h b/src/nidsstream.h index 08b45eb..8021dee 100644 --- a/src/nidsstream.h +++ b/src/nidsstream.h | |||
| @@ -2,16 +2,46 @@ | |||
| 2 | #define BU_NIDS_STREAM_H | 2 | #define BU_NIDS_STREAM_H |
| 3 | 3 | ||
| 4 | #include "bu/stream.h" | 4 | #include "bu/stream.h" |
| 5 | #include "bu/nids.h" | ||
| 5 | 6 | ||
| 6 | namespace Bu | 7 | namespace Bu |
| 7 | { | 8 | { |
| 8 | class NidsStream : public Bu::Stream | 9 | class NidsStream : public Bu::Stream |
| 9 | { | 10 | { |
| 11 | friend class Nids; | ||
| 12 | private: | ||
| 13 | /** | ||
| 14 | * These can only be created by the Nids class. | ||
| 15 | */ | ||
| 16 | NidsStream( Nids &rNids ); | ||
| 17 | NidsStream( const NidsStream &rSrc ); | ||
| 18 | |||
| 10 | public: | 19 | public: |
| 11 | NidsStream(); | ||
| 12 | virtual ~NidsStream(); | 20 | virtual ~NidsStream(); |
| 13 | 21 | ||
| 22 | virtual void close(); | ||
| 23 | virtual size_t read( void *pBuf, size_t nBytes ); | ||
| 24 | virtual size_t write( const void *pBuf, size_t nBytes ); | ||
| 25 | using Stream::write; | ||
| 26 | virtual long tell(); | ||
| 27 | virtual void seek( long offset ); | ||
| 28 | virtual void setPos( long pos ); | ||
| 29 | virtual void setPosEnd( long pos ); | ||
| 30 | virtual bool isEOS(); | ||
| 31 | virtual bool isOpen(); | ||
| 32 | virtual void flush(); | ||
| 33 | virtual bool canRead(); | ||
| 34 | virtual bool canWrite(); | ||
| 35 | virtual bool isReadable(); | ||
| 36 | virtual bool isWritable(); | ||
| 37 | virtual bool isSeekable(); | ||
| 38 | virtual bool isBlocking(); | ||
| 39 | virtual void setBlocking( bool bBlocking=true ); | ||
| 40 | |||
| 14 | private: | 41 | private: |
| 42 | Nids &rNids; | ||
| 43 | typedef struct Bu::Hash<int, struct Nids::Block *> BlockHash; | ||
| 44 | BlockHash hBlock; | ||
| 15 | }; | 45 | }; |
| 16 | }; | 46 | }; |
| 17 | 47 | ||
diff --git a/src/tests/hash.cpp b/src/tests/hash.cpp index 76cf0ec..9cc45f5 100644 --- a/src/tests/hash.cpp +++ b/src/tests/hash.cpp | |||
| @@ -25,7 +25,7 @@ int main() | |||
| 25 | 25 | ||
| 26 | for( int j = 0; j < 10; j++ ) | 26 | for( int j = 0; j < 10; j++ ) |
| 27 | { | 27 | { |
| 28 | printf("%d\n", lb[j].value()->nID ); | 28 | printf("%d\n", lb[j].getValue()->nID ); |
| 29 | } | 29 | } |
| 30 | } | 30 | } |
| 31 | 31 | ||
diff --git a/src/tests/nids.cpp b/src/tests/nids.cpp new file mode 100644 index 0000000..1197ac1 --- /dev/null +++ b/src/tests/nids.cpp | |||
| @@ -0,0 +1,19 @@ | |||
| 1 | #include "bu/file.h" | ||
| 2 | #include "bu/nids.h" | ||
| 3 | |||
| 4 | int main( int argc, char *argv[] ) | ||
| 5 | { | ||
| 6 | if( argc < 2 ) | ||
| 7 | { | ||
| 8 | printf("usage: %s <output>\n\n", argv[0] ); | ||
| 9 | return 1; | ||
| 10 | } | ||
| 11 | |||
| 12 | Bu::File fOut( argv[1], "wb"); | ||
| 13 | Bu::Nids n( fOut ); | ||
| 14 | |||
| 15 | n.initialize( 1024, 5 ); | ||
| 16 | |||
| 17 | Bu::NidsStream s = n.openStream( n.createStream() ); | ||
| 18 | } | ||
| 19 | |||
diff --git a/src/unit/hash.cpp b/src/unit/hash.cpp index 481256b..b869bdd 100644 --- a/src/unit/hash.cpp +++ b/src/unit/hash.cpp | |||
| @@ -15,18 +15,22 @@ class Unit : public Bu::UnitSuite | |||
| 15 | { | 15 | { |
| 16 | private: | 16 | private: |
| 17 | typedef Bu::Hash<Bu::FString, int> StrIntHash; | 17 | typedef Bu::Hash<Bu::FString, int> StrIntHash; |
| 18 | typedef Bu::Hash<Bu::FString, Bu::FString> StrStrHash; | ||
| 19 | |||
| 18 | public: | 20 | public: |
| 19 | Unit() | 21 | Unit() |
| 20 | { | 22 | { |
| 21 | setName("Hash"); | 23 | setName("Hash"); |
| 22 | addTest( Unit::test_probe ); | 24 | addTest( Unit::insert1 ); |
| 25 | addTest( Unit::insert2 ); | ||
| 26 | addTest( Unit::probe1 ); | ||
| 23 | } | 27 | } |
| 24 | 28 | ||
| 25 | virtual ~Unit() | 29 | virtual ~Unit() |
| 26 | { | 30 | { |
| 27 | } | 31 | } |
| 28 | 32 | ||
| 29 | void test_probe() | 33 | void probe1() |
| 30 | { | 34 | { |
| 31 | StrIntHash h; | 35 | StrIntHash h; |
| 32 | char buf[20]; | 36 | char buf[20]; |
| @@ -38,6 +42,20 @@ public: | |||
| 38 | unitTest( h.has(sTmp) ); | 42 | unitTest( h.has(sTmp) ); |
| 39 | } | 43 | } |
| 40 | } | 44 | } |
| 45 | |||
| 46 | void insert1() | ||
| 47 | { | ||
| 48 | StrIntHash h; | ||
| 49 | h["Hi"] = 42; | ||
| 50 | unitTest( h["Hi"] == 42 ); | ||
| 51 | } | ||
| 52 | |||
| 53 | void insert2() | ||
| 54 | { | ||
| 55 | StrStrHash h; | ||
| 56 | h["Hi"] = "Yo"; | ||
| 57 | unitTest( h["Hi"].getValue() == "Yo" ); | ||
| 58 | } | ||
| 41 | }; | 59 | }; |
| 42 | 60 | ||
| 43 | int main( int argc, char *argv[] ) | 61 | int main( int argc, char *argv[] ) |
| @@ -8,6 +8,15 @@ | |||
| 8 | #ifndef BU_UTIL_H | 8 | #ifndef BU_UTIL_H |
| 9 | #define BU_UTIL_H | 9 | #define BU_UTIL_H |
| 10 | 10 | ||
| 11 | /* I borrowed this from someone who borrowed it from glib who borrowed it | ||
| 12 | * from... | ||
| 13 | */ | ||
| 14 | #if (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)) | ||
| 15 | #define DEPRECATED __attribute__((__deprecated__)) | ||
| 16 | #else | ||
| 17 | #define DEPRECATED | ||
| 18 | #endif /* __GNUC__ */ | ||
| 19 | |||
| 11 | namespace Bu | 20 | namespace Bu |
| 12 | { | 21 | { |
| 13 | template<typename item> | 22 | template<typename item> |
