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-rw-r--r--src/nids.h34
1 files changed, 26 insertions, 8 deletions
diff --git a/src/nids.h b/src/nids.h
index e364289..cdefdcb 100644
--- a/src/nids.h
+++ b/src/nids.h
@@ -3,12 +3,15 @@
3 3
4#include <stdint.h> 4#include <stdint.h>
5#include "bu/bitstring.h" 5#include "bu/bitstring.h"
6#include "bu/exceptionbase.h"
6 7
7namespace Bu 8namespace Bu
8{ 9{
9 class Stream; 10 class Stream;
10 class NidsStream; 11 class NidsStream;
11 12
13 subExceptionDecl( NidsException )
14
12 /** 15 /**
13 * Numerically Indexed Data Streams. This is a working name so I can 16 * Numerically Indexed Data Streams. This is a working name so I can
14 * actually get some code written instead of agonizing over the name. 17 * actually get some code written instead of agonizing over the name.
@@ -24,6 +27,14 @@ namespace Bu
24 virtual ~Nids(); 27 virtual ~Nids();
25 28
26 /** 29 /**
30 * Initialize this object based on the data already in the assosiated
31 * stream. This will be called automatically for you if you forget,
32 * but if you want to pre-initialize for some reason, just call this
33 * once before you actually start doing anything with your Nids.
34 */
35 void initialize();
36
37 /**
27 * Create a new Nids system in the assosiated stream. This should be 38 * Create a new Nids system in the assosiated stream. This should be
28 * used carefully, it will destroy all data already within the stream. 39 * used carefully, it will destroy all data already within the stream.
29 * More options will probably be added soon. 40 * More options will probably be added soon.
@@ -46,14 +57,16 @@ namespace Bu
46 */ 57 */
47 NidsStream openStream( int iID ); 58 NidsStream openStream( int iID );
48 59
60 int getBlockSize();
61
49 private: 62 private:
50 typedef struct Block 63 typedef struct Block
51 { 64 {
52 uint32_t iFirstBlock; 65 uint32_t uFirstBlock;
53 uint32_t iNextBlock; 66 uint32_t uNextBlock;
54 uint32_t iPrevBlock; 67 uint32_t uPrevBlock;
55 uint32_t iBytesUsed; 68 uint32_t uBytesUsed;
56 uint32_t iReserved; 69 uint32_t uReserved;
57 unsigned char pData[0]; 70 unsigned char pData[0];
58 } Block; 71 } Block;
59 72
@@ -62,9 +75,14 @@ namespace Bu
62 blockUnused = 0xFFFFFFFFUL 75 blockUnused = 0xFFFFFFFFUL
63 }; 76 };
64 77
65 void extendStream( int iID, int iBlockCount=1 ); 78 uint32_t createBlock( uint32_t uFirstBlock, uint32_t uPrevBlock,
66 void getBlock( int iIndex, struct Nids::Block *pBlock ); 79 int iPreAllocate=1 );
67 void setBlock( int iIndex, struct Nids::Block *pBlock ); 80 void getBlock( uint32_t uIndex, struct Nids::Block *pBlock );
81 void setBlock( uint32_t uIndex, struct Nids::Block *pBlock );
82 void updateStreamSize( uint32_t uIndex, uint32_t uSize );
83 uint32_t getNextBlock( uint32_t uIndex, struct Nids::Block *pBlock );
84 Block *newBlock();
85 void deleteBlock( Block *pBlock );
68 86
69 private: 87 private:
70 Bu::Stream &sStore; 88 Bu::Stream &sStore;