which included commits to RCS files with non-trunk default branches. git-svn-id: svn://10.65.10.50/trunk@976 c028cbd2-c16b-5b4b-a496-9718f37d4682
		
			
				
	
	
		
			1668 lines
		
	
	
		
			55 KiB
		
	
	
	
		
			C
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			1668 lines
		
	
	
		
			55 KiB
		
	
	
	
		
			C
		
	
	
		
			Executable File
		
	
	
	
	
| /* r4reinde.c   (c)Copyright Sequiter Software Inc., 1990-1994.  All rights reserved. */
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| 
 | |
| #include "d4all.h"
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| 
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| #ifndef S4OFF_WRITE
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| #ifndef S4INDEX_OFF
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| #ifndef N4OTHER
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| 
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| #ifndef S4UNIX
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|    #ifdef __TURBOC__
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|       #pragma hdrstop
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|    #endif  /* __TURBOC__ */
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| #endif  /* S4UNIX */
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| 
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| #include "r4reinde.h"
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| 
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| int S4FUNCTION i4reindex( INDEX4 *i4 )
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| {
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|    R4REINDEX reindex ;
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|    int rc ;
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|    #ifndef S4OPTIMIZE_OFF
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|       int has_opt ;
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|    #endif
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|    #ifdef S4FOX
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|       TAG4 *tag_on ;
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|       B4BLOCK *block ;
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|       long r_node, go_to ;
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|       char tag_name[11] ;
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|       int i, len ;
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|       #ifdef S4BYTE_SWAP
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|          char *swap_ptr ;
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|          S4LONG long_val ;
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|          short short_val ;
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|       #endif
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|    #endif  /* S4FOX */
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| 
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|    #ifdef S4VBASIC
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|       if ( c4parm_check( i4, 0, E4_I4REINDEX ) )
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|          return -1 ;
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|    #endif  /* S4VBASIC */
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| 
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|    #ifdef S4DEBUG
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|       if ( i4 == 0  )
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|          e4severe( e4parm, E4_I4REINDEX ) ;
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|    #endif
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| 
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|    if ( i4->code_base->error_code < 0 )
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|       return -1 ;
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| 
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|    #ifndef S4OPTIMIZE_OFF
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|       #ifndef S4DETECT_OFF
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|          i4->code_base->mode |= 0x40 ;
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|       #endif  /* S4DETECT_OFF */
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| 
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|       has_opt = i4->code_base->has_opt ;
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|       d4opt_suspend( i4->code_base ) ;
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|    #endif  /* not S4OPTIMIZE_OFF */
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| 
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|    #ifndef S4SINGLE
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|       rc = i4lock( i4 ) ;
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|       if ( rc )
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|          return rc ;
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|    #endif  /* S4SINGLE */
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| 
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|    if ( r4reindex_init( &reindex, i4 ) < 0 )
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|       return -1 ;
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|    if ( r4reindex_tag_headers_calc( &reindex ) < 0 )
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|       return -1 ;
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|    if ( r4reindex_blocks_alloc(&reindex) < 0 )
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|       return -1 ;
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| 
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|    #ifndef S4SINGLE
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|       #ifdef S4FOX
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|          if ( i4->file.is_exclusive == 0 )
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|             i4->tag_index->header.version =  i4->version_old+1 ;
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|       #endif
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|    #endif
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| 
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|    #ifdef S4FOX
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|       reindex.n_blocks_used = 0 ;
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|       tag_name[10] = '\0' ;
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| 
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|       if ( i4->tag_index->header.type_code >= 64 )  /* if .cdx */
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|       {
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|          reindex.tag = i4->tag_index ;
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|          if ( sort4init( &reindex.sort, i4->code_base, i4->tag_index->header.key_len, 0 ) < 0 )
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|             return -1 ;
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|          reindex.sort.cmp = (S4CMP_FUNCTION *)u4memcmp ;
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| 
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|          for( tag_on = 0, i = 1 ; ; i++ )
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|          {
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|             tag_on = (TAG4 *)l4next( &i4->tags, tag_on ) ;
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|             if ( tag_on == 0 )
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|                break ;
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|             len = strlen( tag_on->alias ) ;
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|             memset( tag_name, ' ', 10 ) ;
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|             memcpy( tag_name, tag_on->alias, len ) ;
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|             if ( sort4put( &reindex.sort, 2 * B4BLOCK_SIZE * i, tag_name, "" ) < 0)
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|                return -1 ;
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|             #ifdef S4DEBUG
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|                reindex.key_count++ ;
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|             #endif /* S4DEBUG */
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|          }
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| 
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|          if ( (rc = r4reindex_write_keys(&reindex)) != 0 )
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|          {
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|             r4reindex_free( &reindex ) ;
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|             return rc ;
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|          }
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|       }
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|       else
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|          if ( reindex.n_tags > 1 )   /* should only be 1 tag in an .idx */
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|             return e4( i4->code_base, e4index, E4_INFO_BDI ) ;
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|    #endif  /* S4FOX */
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| 
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|    for( reindex.tag = 0 ;; )
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|    {
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|       reindex.tag = (TAG4 *) l4next(&i4->tags, reindex.tag) ;
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|       if ( reindex.tag == 0 )
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|          break ;
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|       #ifdef S4FOX
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|          reindex.n_blocks_used = 0 ;
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|       #else  /* S4MDX */
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|          reindex.tag->header.version++ ;
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|       #endif  /* S4FOX */
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| 
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|       rc = r4reindex_supply_keys( &reindex ) ;
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|       if ( rc )
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|       {
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|          r4reindex_free( &reindex ) ;
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|          return rc ;
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|       }
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| 
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|       rc = r4reindex_write_keys( &reindex ) ;
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|       if ( rc )
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|       {
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|          r4reindex_free( &reindex ) ;
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|          return rc ;
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|       }
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|    }
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| 
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|    rc = r4reindex_tag_headers_write( &reindex ) ;
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| 
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|    #ifdef S4FOX
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|       /* now must fix the right node branches for all blocks by moving leftwards */
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|       for( tag_on = 0 ; ; )
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|       {
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|          tag_on = (TAG4 *)l4next( &i4->tags, tag_on ) ;
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|          if ( tag_on == 0 )
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|             break ;
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|          for( t4rl_bottom( tag_on ) ; tag_on->blocks.last_node ; t4up( tag_on ) )
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|          {
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|             block = t4block( tag_on ) ;
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|             r_node = block->header.left_node ;
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|             go_to = block->header.left_node ;
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| 
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|             while ( go_to != -1 )
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|             {
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|                r_node = block->file_block ;
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|                if ( block->changed )
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|                   if ( b4flush( block ) < 0 )
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|                      return -1 ;
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| 
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|                if ( file4read_all( &tag_on->index->file, I4MULTIPLY*go_to, &block->header, B4BLOCK_SIZE) < 0 )
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|                   return -1 ;
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| 
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|                #ifdef S4BYTE_SWAP
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|                   block->header.node_attribute = x4reverse_short( (void *)&block->header.node_attribute ) ;
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|                   block->header.n_keys = x4reverse_short( (void *)&block->header.n_keys ) ;
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|                   block->header.left_node = x4reverse_long( (void *)&block->header.left_node ) ;
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|                   block->header.right_node = x4reverse_long( (void *)&block->header.right_node ) ;
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| 
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|                                       /* if block is a leaf */
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|                   if (block->header.node_attribute >= 2 )
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|                   {
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|                      block->node_hdr.free_space = x4reverse_short( (void *)&block->node_hdr.free_space ) ;
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|                      long_val = x4reverse_long( (void *)&block->node_hdr.rec_num_mask[0] ) ;
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|                      memcpy( (void *)&block->node_hdr.rec_num_mask[0], (void *)&long_val, sizeof(S4LONG) ) ;
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|                   }
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|                   else                /* if block is a branch */
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|                   {
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|                      short_val = block->tag->header.key_len + sizeof(S4LONG) ;
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|                                 /* position swap_ptr to end of first key expression */
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|                      swap_ptr = (char *) &block->node_hdr.free_space + block->tag->header.key_len ;
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| 
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|                                    /* move through all B4KEY's to swap 'long's */
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|                      for ( i = 0 ; i < (int) block->header.n_keys ; i++ )
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|                      {
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|                         long_val = x4reverse_long( (void *)swap_ptr ) ;
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|                         memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
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|                         swap_ptr += sizeof(S4LONG) ;
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|                         long_val = x4reverse_long( (void *)swap_ptr ) ;
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|                         memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
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|                         swap_ptr += short_val ;
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|                      }
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|                   }
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|                #endif
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| 
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|                block->file_block = go_to ;
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|                if ( block->header.right_node != r_node )  /* if a bad value */
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|                {
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|                   block->header.right_node = r_node ;
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|                   block->changed = 1 ;
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|                }
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|                go_to = block->header.left_node ;
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|             }
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|             block->built_on = -1 ;
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|             b4top( block ) ;
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|          }
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|       }
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|    #endif  /* S4FOX */
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| 
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|    r4reindex_free( &reindex ) ;
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|    #ifndef S4OPTIMIZE_OFF
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|       if ( has_opt )
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|          d4opt_restart( i4->code_base ) ;
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|    #endif  /* not S4OPTIMIZE_OFF */
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| 
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|    return rc ;
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| }
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| 
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| int r4reindex_init( R4REINDEX *r4, INDEX4 *i4 )
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| {
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|    memset( (void *)r4, 0, sizeof( R4REINDEX ) ) ;
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| 
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|    r4->index = i4 ;
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|    r4->data = i4->data ;
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|    r4->code_base = i4->code_base ;
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| 
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|    r4->min_keysmax = INT_MAX ;
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|    r4->start_block = 0 ;
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| 
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|    #ifndef S4FOX
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|       r4->blocklen = i4->header.block_rw ;
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|    #endif  /* S4FOX */
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| 
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|    r4->buffer_len = i4->code_base->mem_size_sort_buffer ;
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|    if ( r4->buffer_len < 1024 )
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|       r4->buffer_len = 1024 ;
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| 
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|    r4->buffer = (char *)u4alloc_er( i4->code_base, r4->buffer_len ) ;
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|    if ( r4->buffer == 0 )
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|       return e4memory ;
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| 
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|    #ifdef S4FOX
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|       r4->lastblock = 1024 ;  /* leave space for the index header block  */
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|    #endif  /* S4FOX */
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| 
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|    return 0 ;
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| }
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| 
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| void r4reindex_free( R4REINDEX *r4 )
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| {
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|    u4free( r4->buffer ) ;
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|    u4free( r4->start_block ) ;
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|    sort4free( &r4->sort ) ;
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| }
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| 
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| int r4reindex_blocks_alloc( R4REINDEX *r4 )
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| {
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|    long on_count ;
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| 
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|    #ifdef S4DEBUG
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|       if ( (unsigned) r4->min_keysmax > INT_MAX )
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|          e4severe( e4info, E4_I4REINDEX_BA ) ;
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|    #endif  /* S4DEBUG */
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| 
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|    /* Calculate the block stack height */
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|    on_count = d4reccount( r4->data ) ;
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|    for ( r4->n_blocks = 2; on_count != 0L; r4->n_blocks++ )
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|       on_count /= r4->min_keysmax ;
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| 
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|    if ( r4->start_block == 0 )
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|    {
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|       #ifdef S4FOX
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|          r4->start_block = (R4BLOCK_DATA *)u4alloc_er( r4->code_base, (long)B4BLOCK_SIZE * r4->n_blocks ) ;
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|       #endif  /* S4FOX */
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| 
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|       #ifdef S4MDX
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|          r4->start_block = (R4BLOCK_DATA *)u4alloc_er( r4->code_base, (long)r4->blocklen * r4->n_blocks ) ;
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|       #endif  /* S4MDX */
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|    }
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| 
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|    if ( r4->start_block == 0 )
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|       return e4memory ;
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| 
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|    return 0 ;
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| }
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| 
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| int r4reindex_supply_keys( R4REINDEX *r4 )
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| {
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|    FILE4SEQ_READ seq_read ;
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|    EXPR4 *filter ;
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|    char *key_result ;
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|    int i, *filter_result ;
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|    long  count, i_rec ;
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|    DATA4 *d4 ;
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|    TAG4 *t4 ;
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| 
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|    d4 = r4->data ;
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|    t4 = r4->tag ;
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|    #ifdef S4DEBUG
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|       r4->key_count = 0L ;
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|    #endif  /* S4DEBUG */
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| 
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|    file4seq_read_init( &seq_read, &d4->file, d4record_position(d4,1L), r4->buffer, r4->buffer_len) ;
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| 
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|    if ( sort4init( &r4->sort, r4->code_base, t4->header.key_len, 0 ) < 0 )
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|       return -1 ;
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| 
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|    #ifdef S4FOX
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|       r4->sort.cmp = (S4CMP_FUNCTION *)u4memcmp ;
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|    #endif  /* S4FOX */
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| 
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|    #ifdef S4MDX
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|       r4->sort.cmp = t4->cmp ;
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|    #endif  /* S4MDX */
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| 
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|    filter = t4->filter ;
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|    count = d4reccount( d4 ) ;
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| 
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|    for ( i_rec = 1L; i_rec <= count; i_rec++ )
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|    {
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|       if ( file4seq_read_all( &seq_read, d4->record, d4->record_width ) < 0 )
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|          return -1 ;
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|       d4->rec_num = i_rec ;
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| 
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|       #ifndef S4MEMO_OFF
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|          for ( i = 0; i < d4->n_fields_memo; i++ )
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|             f4memo_reset( d4->fields_memo[i].field ) ;
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|       #endif  /* S4MEMO_OFF */
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| 
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|       if ( filter )
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|       {
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|          expr4vary( filter, (char **)&filter_result ) ;
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|          #ifdef S4DEBUG
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|             if ( expr4type( filter ) != r4log )
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|                e4severe( e4result, E4_I4REINDEX_SK ) ;
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|          #endif  /* S4DEBUG */
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|          if ( ! *filter_result )
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|             continue ;
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|          t4->has_keys = 1 ;
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|          #ifdef S4MDX
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|             t4->had_keys = 0 ;
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|          #endif
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|       }
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| 
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|       t4expr_key( t4, &key_result ) ;
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| 
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|       if ( sort4put( &r4->sort, i_rec, key_result, "" ) < 0)
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|          return -1 ;
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|       #ifdef S4DEBUG
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|          r4->key_count++ ;
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|       #endif  /* S4DEBUG */
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|    }
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| 
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|    return 0 ;
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| }
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| 
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| int r4reindex_tag_headers_calc( R4REINDEX *r4 )
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| {
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|    TAG4 *tag ;
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|    #ifdef S4FOX
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|       int keysmax, expr_type ;
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|    #endif  /* S4FOX */
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| 
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|    r4->n_tags = 0 ;
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|    for( tag = 0 ;; )
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|    {
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|       tag = (TAG4 *) l4next( &r4->index->tags, tag ) ;
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|       if ( tag == 0 )
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|          break ;
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|       if ( t4free_all(tag) < 0 )
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|          return -1 ;
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| 
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|       tag->header.key_len = (short) expr4key_len( tag->expr ) ;
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|       #ifdef S4FOX
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|          expr_type = expr4type( tag->expr ) ;
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|          if ( expr_type < 0 )
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|             return -1 ;
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|          t4init_seek_conv( tag, expr_type ) ;
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|          if ( tag->header.key_len < 0 )
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|             return -1 ;
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| 
 | |
|          keysmax = ( B4BLOCK_SIZE - sizeof(B4STD_HEADER) ) / ( tag->header.key_len + 2*sizeof(long) ) ;
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| 
 | |
|          if ( keysmax < r4->min_keysmax )
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|             r4->min_keysmax = keysmax ;
 | |
|       #endif  /* S4FOX */
 | |
| 
 | |
|       #ifdef S4MDX
 | |
|          if ( tag->header.key_len < 0 )
 | |
|             return -1 ;
 | |
| 
 | |
|          tag->header.type = (char) expr4type( tag->expr ) ;
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|          if ( tag->header.type == r4date_doub )
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|             tag->header.type = r4date ;
 | |
|          if ( tag->header.type == r4num_doub )
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|             tag->header.type = r4num ;
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| 
 | |
|          t4init_seek_conv( tag, tag->header.type ) ;
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|          tag->header.group_len = (short)(tag->header.key_len+ 2*sizeof(S4LONG)-1) ;
 | |
|          tag->header.group_len-= (short)(tag->header.group_len % sizeof(S4LONG)) ;
 | |
| 
 | |
|          tag->header.keys_max = (short)((r4->index->header.block_rw - sizeof(short)
 | |
|                        - 6 - sizeof(S4LONG)) / tag->header.group_len) ;
 | |
|          if ( tag->header.keys_max < r4->min_keysmax )
 | |
|             r4->min_keysmax = tag->header.keys_max ;
 | |
|          tag->has_keys = 0 ;
 | |
|          tag->had_keys = 1 ;
 | |
|       #endif  /* S4MDX */
 | |
| 
 | |
|       r4->n_tags++ ;
 | |
|    }
 | |
| 
 | |
|    #ifdef S4FOX
 | |
|       if ( r4->index->tag_index->header.type_code >= 64 )
 | |
|       {
 | |
|          r4->lastblock += ((long)r4->n_tags-1)*2*B4BLOCK_SIZE + B4BLOCK_SIZE ;
 | |
|          t4init_seek_conv( r4->index->tag_index, r4str ) ;
 | |
|       }
 | |
|       else
 | |
|          r4->lastblock -= B4BLOCK_SIZE ;
 | |
|    #endif  /* S4FOX */
 | |
| 
 | |
|    #ifdef S4MDX
 | |
|       r4->lastblock_inc = r4->index->header.block_rw/ 512 ;
 | |
|       r4->lastblock = 4 + (r4->n_tags-1)*r4->lastblock_inc ;
 | |
|    #endif  /* S4MDX */
 | |
| 
 | |
|    return 0 ;
 | |
| }
 | |
| 
 | |
| TAG4 *r4reindex_find_i_tag( R4REINDEX *r4, int i_tag )
 | |
| {
 | |
|    /* First 'i_tag' starts at '1' for this specific routine */
 | |
|    TAG4 *tag_on ;
 | |
|    tag_on = (TAG4 *) l4first( &r4->index->tags ) ;
 | |
| 
 | |
|    while ( --i_tag >= 1 )
 | |
|    {
 | |
|       tag_on = (TAG4 *) l4next( &r4->index->tags, tag_on ) ;
 | |
|       if ( tag_on == 0 )
 | |
|          return 0 ;
 | |
|    }
 | |
|    return tag_on ;
 | |
| }
 | |
| 
 | |
| #ifdef S4MDX
 | |
| 
 | |
| #define GARBAGE_LEN 518
 | |
| 
 | |
| int r4reindex_tag_headers_write( R4REINDEX *r4 )
 | |
| {
 | |
|    /* First, calculate the T4DESC.left_chld, T4DESC.right_chld values, T4DESC.parent values */
 | |
|    int  higher[49], lower[49], parent[49] ;
 | |
|    TAG4 *tag_on, *tag_ptr ;
 | |
|    INDEX4 *i4 ;
 | |
|    DATA4  *d4 ;
 | |
|    int n_tag, i_tag, j_field, len, save_code ;
 | |
|    T4DESC tag_info ;
 | |
|    char *ptr ;
 | |
|    #ifdef S4BYTE_SWAP
 | |
|       I4HEADER swap_header ;
 | |
|       T4HEADER swap_tag_header ;
 | |
|    #endif  /* S4BYTE_SWAP */
 | |
| 
 | |
|    memset( (void *)higher, 0, sizeof(higher) ) ;
 | |
|    memset( (void *)lower,  0, sizeof(lower) ) ;
 | |
|    memset( (void *)parent, 0, sizeof(parent) ) ;
 | |
| 
 | |
|    i4 = r4->index ;
 | |
|    d4 = r4->data ;
 | |
| 
 | |
|    tag_on = (TAG4 *) l4first( &i4->tags ) ;
 | |
|    if ( tag_on != 0 )
 | |
|    {
 | |
|       n_tag = 1 ;
 | |
| 
 | |
|       for ( ;; )
 | |
|       {
 | |
|          tag_on = (TAG4 *)l4next( &i4->tags, tag_on) ;
 | |
|          if ( tag_on == 0 )
 | |
|             break ;
 | |
|          n_tag++ ;
 | |
|          i_tag = 1 ;
 | |
|          for (;;)
 | |
|          {
 | |
|             tag_ptr = r4reindex_find_i_tag( r4, i_tag ) ;
 | |
|             #ifdef S4DEBUG
 | |
|                if ( tag_ptr == 0 || i_tag < 0 || i_tag >= 48 || n_tag > 48 )
 | |
|                   e4severe( e4result, E4_I4REINDEX_THW ) ;
 | |
|             #endif  /* S4DEBUG */
 | |
|             if ( u4memcmp( tag_on->alias, tag_ptr->alias, sizeof(tag_on->alias)) < 0)
 | |
|             {
 | |
|                if ( lower[i_tag] == 0 )
 | |
|                {
 | |
|                   lower[i_tag] = n_tag ;
 | |
|                   parent[n_tag] = i_tag ;
 | |
|                   break ;
 | |
|                }
 | |
|                else
 | |
|                   i_tag = lower[i_tag] ;
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                if ( higher[i_tag] == 0 )
 | |
|                {
 | |
|                   higher[i_tag] = n_tag ;
 | |
|                   parent[n_tag] = i_tag ;
 | |
|                   break ;
 | |
|                }
 | |
|                else
 | |
|                   i_tag = higher[i_tag] ;
 | |
|             }
 | |
|          }
 | |
|       }
 | |
|    }
 | |
| 
 | |
|    /* Now write the headers */
 | |
|    file4seq_write_init( &r4->seqwrite, &i4->file, 0L, r4->buffer, r4->buffer_len ) ;
 | |
| 
 | |
|    i4->header.eof = r4->lastblock + r4->lastblock_inc ;
 | |
|    i4->header.free_list = 0L ;
 | |
|    u4yymmdd( i4->header.yymmdd ) ;
 | |
| 
 | |
|    #ifdef S4BYTE_SWAP
 | |
|       memcpy( (void *)&swap_header, (void *)&i4->header, sizeof(I4HEADER) ) ;
 | |
| 
 | |
|       swap_header.block_chunks = x4reverse_short( (void *)&swap_header.block_chunks ) ;
 | |
|       swap_header.block_rw = x4reverse_short( (void *)&swap_header.block_rw ) ;
 | |
|       swap_header.slot_size = x4reverse_short( (void *)&swap_header.slot_size ) ;
 | |
|       swap_header.num_tags = x4reverse_short( (void *)&swap_header.num_tags ) ;
 | |
|       swap_header.eof = x4reverse_long( (void *)&swap_header.eof ) ;
 | |
|       swap_header.free_list = x4reverse_long( (void *)&swap_header.free_list ) ;
 | |
| 
 | |
|       file4seq_write( &r4->seqwrite, &swap_header, sizeof(I4HEADER) ) ;
 | |
|    #else
 | |
|       file4seq_write( &r4->seqwrite, &i4->header, sizeof(I4HEADER) ) ;
 | |
|    #endif  /* S4BYTE_SWAP */
 | |
| 
 | |
|    file4seq_write_repeat( &r4->seqwrite, 512-sizeof(I4HEADER)+17, 0 ) ;
 | |
|    /* There is a 0x01 on byte 17 of the first 32 bytes. */
 | |
|    file4seq_write( &r4->seqwrite, "\001", 1 ) ;
 | |
|    file4seq_write_repeat( &r4->seqwrite, 14, 0 ) ;
 | |
| 
 | |
|    tag_on = (TAG4 *) l4first( &i4->tags ) ;
 | |
| 
 | |
|    for ( i_tag = 0; i_tag < 47; i_tag++ )
 | |
|    {
 | |
|       memset( (void *)&tag_info, 0, sizeof(tag_info) ) ;
 | |
| 
 | |
|       if ( i_tag < r4->n_tags )
 | |
|       {
 | |
|          tag_info.header_pos = 4 + (long) i_tag * r4->lastblock_inc ;
 | |
|          tag_on->header_offset = tag_info.header_pos * 512 ;
 | |
| 
 | |
|          memcpy( (void *)tag_info.tag, tag_on->alias, sizeof(tag_info.tag) ) ;
 | |
| 
 | |
|          tag_info.index_type = tag_on->header.type ;
 | |
| 
 | |
|          #ifdef S4BYTE_SWAP
 | |
|             tag_info.header_pos = x4reverse_long( (void *)&tag_info.header_pos ) ;
 | |
|             tag_info.x1000 = 0x0010 ;
 | |
|          #else
 | |
|             tag_info.x1000 = 0x1000 ;
 | |
|          #endif  /* S4BYTE_SWAP */
 | |
| 
 | |
|          tag_info.x2 = 2 ;
 | |
|          tag_info.left_chld = (char) lower[i_tag+1] ;
 | |
|          tag_info.right_chld = (char) higher[i_tag+1] ;
 | |
|          tag_info.parent = (char) parent[i_tag+1] ;
 | |
| 
 | |
|          if ( i4->header.is_production )
 | |
|          {
 | |
|             save_code = i4->code_base->field_name_error ;
 | |
|             i4->code_base->field_name_error = 0 ;
 | |
|             j_field = d4field_number( d4, tag_on->expr->source ) ;
 | |
|             i4->code_base->field_name_error = save_code ;
 | |
|             if ( j_field > 0 )
 | |
|                file4write( &d4->file, (j_field+1)*sizeof(FIELD4IMAGE)-1, "\001", 1 ) ;
 | |
|          }
 | |
|          tag_on = (TAG4 *) l4next( &i4->tags, tag_on ) ;
 | |
|       }
 | |
|       if ( file4seq_write( &r4->seqwrite, &tag_info, sizeof(T4DESC)) < 0 )
 | |
|          return -1 ;
 | |
|    }
 | |
| 
 | |
|    for (tag_on = 0 ;; )
 | |
|    {
 | |
|       tag_on = (TAG4 *)l4next( &i4->tags, tag_on ) ;
 | |
|       if ( tag_on == 0 )
 | |
|          break ;
 | |
|       #ifdef S4BYTE_SWAP
 | |
|          memcpy( (void *)&swap_tag_header, (void *)&tag_on->header, sizeof(T4HEADER) ) ;
 | |
| 
 | |
|          swap_tag_header.root = x4reverse_long( (void *)&swap_tag_header.root ) ;
 | |
|          swap_tag_header.key_len = x4reverse_short( (void *)&swap_tag_header.key_len ) ;
 | |
|          swap_tag_header.keys_max = x4reverse_short( (void *)&swap_tag_header.keys_max ) ;
 | |
|          swap_tag_header.group_len = x4reverse_short( (void *)&swap_tag_header.group_len ) ;
 | |
|          swap_tag_header.unique = x4reverse_short( (void *)&swap_tag_header.unique ) ;
 | |
| 
 | |
|          if ( file4seq_write( &r4->seqwrite, &swap_tag_header, sizeof(T4HEADER)) < 0 )
 | |
|             return -1 ;
 | |
|       #else
 | |
|          if ( file4seq_write( &r4->seqwrite, &tag_on->header, sizeof(T4HEADER)) < 0 )
 | |
|             return -1 ;
 | |
|       #endif  /* S4BYTE_SWAP */
 | |
| 
 | |
|       ptr = tag_on->expr->source ;
 | |
|       len = strlen(ptr) ;
 | |
|       file4seq_write( &r4->seqwrite, ptr, len) ;
 | |
|       file4seq_write_repeat( &r4->seqwrite, 221-len, 0 ) ;
 | |
| 
 | |
|       if( tag_on->filter != 0 )
 | |
|       {
 | |
|          file4seq_write_repeat( &r4->seqwrite, 1, 1 ) ;
 | |
|          if (tag_on->has_keys)
 | |
|             file4seq_write_repeat( &r4->seqwrite, 1, 1 ) ;
 | |
|          else
 | |
|             file4seq_write_repeat( &r4->seqwrite, 1, 0 ) ;
 | |
|       }
 | |
|       else
 | |
|          file4seq_write_repeat( &r4->seqwrite, 2, 0 ) ;
 | |
| 
 | |
|       /* write extra space up to filter write point */
 | |
|       file4seq_write_repeat( &r4->seqwrite, GARBAGE_LEN-3 , 0 ) ;
 | |
| 
 | |
|       if ( tag_on->filter == 0 )
 | |
|          len = 0 ;
 | |
|       else
 | |
|       {
 | |
|          ptr = tag_on->filter->source ;
 | |
|          len = strlen(ptr) ;
 | |
|          file4seq_write( &r4->seqwrite, ptr, len ) ;
 | |
|       }
 | |
|       file4seq_write_repeat( &r4->seqwrite,
 | |
|          r4->blocklen - GARBAGE_LEN - len - 220 - sizeof(tag_on->header), 0 );
 | |
|    }
 | |
|    file4len_set( &i4->file, i4->header.eof * 512) ;
 | |
| 
 | |
|    if ( file4seq_write_flush(&r4->seqwrite) < 0 )
 | |
|       return -1 ;
 | |
|    return 0 ;
 | |
| }
 | |
| 
 | |
| int r4reindex_write_keys( R4REINDEX *r4 )
 | |
| {
 | |
|    TAG4 *t4 ;
 | |
|    char  last_key[I4MAX_KEY_SIZE], *key_data ;
 | |
|    int   is_unique, rc, is_first ;
 | |
|    void *dummy_ptr ;
 | |
|    long  key_rec ;
 | |
| 
 | |
|    t4 = r4->tag ;
 | |
| 
 | |
|    r4->grouplen = t4->header.group_len ;
 | |
|    r4->valuelen = t4->header.key_len ;
 | |
|    r4->keysmax = t4->header.keys_max ;
 | |
|    memset( (void *)r4->start_block, 0, r4->n_blocks*r4->blocklen ) ;
 | |
| 
 | |
|    if ( sort4get_init( &r4->sort ) < 0 )
 | |
|       return -1 ;
 | |
| 
 | |
|    file4seq_write_init( &r4->seqwrite, &r4->index->file, (r4->lastblock+r4->lastblock_inc)*512, r4->buffer,r4->buffer_len) ;
 | |
| 
 | |
|    #ifdef S4DEBUG
 | |
|       if ( I4MAX_KEY_SIZE < r4->sort.sort_len )
 | |
|          e4severe( e4info, E4_INFO_EXK ) ;
 | |
|    #endif  /* S4DEBUG */
 | |
| 
 | |
|    is_first = 1 ;
 | |
|    is_unique = t4->header.unique ;
 | |
| 
 | |
|    for(;;)  /* For each key to write */
 | |
|    {
 | |
|       rc = sort4get( &r4->sort, &key_rec, (void **) &key_data, &dummy_ptr) ;
 | |
|       if ( rc < 0 )
 | |
|          return -1 ;
 | |
| 
 | |
|       #ifdef S4DEBUG
 | |
|          if ( r4->key_count < 0L  ||  r4->key_count == 0L && rc != 1
 | |
|               ||  r4->key_count > 0L && rc == 1 )
 | |
|             e4severe( e4info, E4_I4REINDEX_WK ) ;
 | |
|          r4->key_count-- ;
 | |
|       #endif  /* S4DEBUG */
 | |
| 
 | |
|       if ( rc == 1 )  /* No more keys */
 | |
|       {
 | |
|          if ( r4reindex_finish(r4) < 0 )
 | |
|             return -1 ;
 | |
|          if ( file4seq_write_flush(&r4->seqwrite) < 0 )
 | |
|             return -1 ;
 | |
|          break ;
 | |
|       }
 | |
| 
 | |
|       if ( is_unique )
 | |
|       {
 | |
|          if( is_first )
 | |
|             is_first = 0 ;
 | |
|          else
 | |
|             if ( (*t4->cmp)( key_data, last_key, r4->sort.sort_len) == 0 )
 | |
|             {
 | |
|                switch( t4->unique_error )
 | |
|                {
 | |
|                   case e4unique:
 | |
|                      return e4describe( r4->code_base, e4unique, E4_UNIQUE, t4->alias, (char *) 0 ) ;
 | |
| 
 | |
|                   case r4unique:
 | |
|                      return r4unique ;
 | |
| 
 | |
|                   default:
 | |
|                      continue ;
 | |
|                }
 | |
|             }
 | |
|          memcpy( last_key, key_data, r4->sort.sort_len ) ;
 | |
|       }
 | |
| 
 | |
|       /* Add the key */
 | |
|       if ( r4reindex_add( r4, key_rec, key_data) < 0 )
 | |
|          return -1 ;
 | |
|    }
 | |
| 
 | |
|    /* Now complete the tag header info. */
 | |
|    t4->header.root = r4->lastblock ;
 | |
|    return 0 ;
 | |
| }
 | |
| 
 | |
| int r4reindex_add( R4REINDEX *r4, long rec, char *key_value )
 | |
| {
 | |
|    B4KEY_DATA *key_to ;
 | |
|    R4BLOCK_DATA *start_block ;
 | |
|    #ifdef S4DEBUG
 | |
|       long  dif ;
 | |
|    #endif  /* S4DEBUG */
 | |
| 
 | |
|    start_block = r4->start_block ;
 | |
|    if ( start_block->n_keys >= r4->keysmax )
 | |
|    {
 | |
|       if ( r4reindex_todisk(r4) < 0 )
 | |
|          return -1 ;
 | |
|       memset( (void *)start_block, 0, r4->blocklen ) ;
 | |
|    }
 | |
| 
 | |
|    key_to = (B4KEY_DATA *)
 | |
|         (start_block->info + (start_block->n_keys++) * r4->grouplen) ;
 | |
| 
 | |
|    #ifdef S4DEBUG
 | |
|       dif = (char *) key_to -  (char *) start_block ;
 | |
|       if ( ((unsigned)dif + r4->grouplen) > r4->blocklen || dif < 0 )
 | |
|          e4severe( e4result, E4_I4REINDEX_ADD ) ;
 | |
|    #endif  /* S4DEBUG */
 | |
|    key_to->num = rec ;
 | |
|    memcpy( (void *)key_to->value, key_value, r4->valuelen ) ;
 | |
| 
 | |
|    return 0 ;
 | |
| }
 | |
| 
 | |
| int r4reindex_finish( R4REINDEX *r4 )
 | |
| {
 | |
|    R4BLOCK_DATA *block ;
 | |
|    int i_block ;
 | |
|    B4KEY_DATA *key_to ;
 | |
|    #ifdef S4DEBUG
 | |
|       long dif ;
 | |
|    #endif  /* S4DEBUG */
 | |
| 
 | |
|    #ifdef S4BYTE_SWAP
 | |
|       char *swap, *swap_ptr ;
 | |
|       int i ;
 | |
|       S4LONG long_val ;
 | |
|       short short_val ;
 | |
| 
 | |
|       swap = (char *) u4alloc_er( r4->code_base, r4->blocklen ) ;
 | |
|       if ( swap == 0 )
 | |
|          return -1 ;
 | |
| 
 | |
|       memcpy( (void *)swap, (void *)r4->start_block, r4->blocklen ) ;
 | |
|                        /* position swap_ptr at beginning of B4KEY's */
 | |
|       swap_ptr = swap ;
 | |
|       swap_ptr += 6 + sizeof(short) ;
 | |
|                        /* move through all B4KEY's to swap 'long' */
 | |
|       for ( i = 0 ; i < (* (short *)swap) ; i++ )
 | |
|       {
 | |
|          long_val = x4reverse_long( (void *)swap_ptr ) ;
 | |
|          memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|          swap_ptr += r4->grouplen ;
 | |
|       }
 | |
|                        /* swap the num_keys value */
 | |
|       short_val = x4reverse_short( (void *)swap ) ;
 | |
|       memcpy( swap, (void *) &short_val, sizeof(short) ) ;
 | |
| 
 | |
|       if ( file4seq_write(&r4->seqwrite, swap ,r4->blocklen) < 0 )
 | |
|       {
 | |
|          u4free( swap ) ;
 | |
|          return -1 ;
 | |
|       }
 | |
|    #else
 | |
|       if ( file4seq_write(&r4->seqwrite, r4->start_block, r4->blocklen) < 0 )
 | |
|          return -1 ;
 | |
|    #endif  /* S4BYTE_SWAP */
 | |
| 
 | |
|    r4->lastblock += r4->lastblock_inc ;
 | |
|    block = r4->start_block ;
 | |
| 
 | |
|    for( i_block=1; i_block < r4->n_blocks; i_block++ )
 | |
|    {
 | |
|       block = (R4BLOCK_DATA *) ((char *)block + r4->blocklen) ;
 | |
|       if ( block->n_keys >= 1 )
 | |
|       {
 | |
|          key_to = (B4KEY_DATA *) (block->info + block->n_keys*r4->grouplen) ;
 | |
|          #ifdef S4DEBUG
 | |
|             dif = (char *) key_to  -  (char *) block ;
 | |
|             if ( ( (unsigned)dif + sizeof( long ) ) > r4->blocklen  ||  dif < 0 )
 | |
|                e4severe( e4result, E4_I4REINDEX_FN ) ;
 | |
|          #endif  /* S4DEBUG */
 | |
|          key_to->num = r4->lastblock ;
 | |
| 
 | |
|          #ifdef S4BYTE_SWAP
 | |
|             memcpy( (void *)swap, (void *)block, r4->blocklen ) ;
 | |
|                              /* position swap_ptr at beginning of B4KEY's */
 | |
|             swap_ptr = swap ;
 | |
|             swap_ptr += 6 + sizeof(short) ;
 | |
|                              /* move through all B4KEY's to swap 'long' */
 | |
|             for ( i = 0 ; i < (*(short *)swap) ; i++ )
 | |
|             {
 | |
|                long_val = x4reverse_long( (void *)swap_ptr ) ;
 | |
|                memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|                swap_ptr += r4->grouplen ;
 | |
|             }
 | |
|                              /* this is a branch */
 | |
|             long_val = x4reverse_long( (void *)swap_ptr ) ;
 | |
|             memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
| 
 | |
|                              /* swap the num_keys value */
 | |
|             short_val = x4reverse_short( (void *)swap ) ;
 | |
|             memcpy( swap, (void *) &short_val, sizeof(short) ) ;
 | |
| 
 | |
|             if ( file4seq_write( &r4->seqwrite, swap, r4->blocklen) < 0)
 | |
|             {
 | |
|                u4free( swap ) ;
 | |
|                return -1 ;
 | |
|             }
 | |
|          #else
 | |
|             if ( file4seq_write( &r4->seqwrite, block, r4->blocklen) < 0 )
 | |
|                return -1;
 | |
|          #endif  /* S4BYTE_SWAP */
 | |
| 
 | |
|          r4->lastblock += r4->lastblock_inc ;
 | |
|       }
 | |
|    }
 | |
|    #ifdef S4BYTE_SWAP
 | |
|       u4free( swap ) ;
 | |
|    #endif  /* S4BYTE_SWAP */
 | |
|    return 0 ;
 | |
| }
 | |
| 
 | |
| int r4reindex_todisk( R4REINDEX *r4 )
 | |
| {
 | |
|    R4BLOCK_DATA *block ;
 | |
|    int i_block ;
 | |
|    B4KEY_DATA *key_on, *keyto ;
 | |
|    #ifdef S4DEBUG
 | |
|       long dif ;
 | |
|    #endif  /* S4DEBUG */
 | |
| 
 | |
|    #ifdef S4BYTE_SWAP
 | |
|       char *swap, *swap_ptr ;
 | |
|       int i ;
 | |
|       S4LONG long_val ;
 | |
|       short short_val ;
 | |
|    #endif  /* S4BYTE_SWAP */
 | |
| 
 | |
|    /* Writes out the current block and adds references to higher blocks */
 | |
|    block = r4->start_block ;
 | |
|    i_block= 0 ;
 | |
| 
 | |
|    key_on = (B4KEY_DATA *) (block->info + (block->n_keys-1) * r4->grouplen) ;
 | |
| 
 | |
|    #ifdef S4DEBUG
 | |
|       dif = (char *) key_on -  (char *) block ;
 | |
|       if ( ( (unsigned)dif + r4->grouplen ) > r4->blocklen || dif < 0 )
 | |
|          e4severe( e4result, E4_I4REINDEX_TD ) ;
 | |
|    #endif  /* S4DEBUG */
 | |
| 
 | |
|    for(;;)
 | |
|    {
 | |
|       #ifdef S4BYTE_SWAP
 | |
|          swap = (char *) u4alloc_er( r4->code_base, r4->blocklen + sizeof(S4LONG) ) ;
 | |
|          if ( swap == 0 )
 | |
|             return -1 ;
 | |
| 
 | |
|          memcpy( (void *)swap, (void *)block, r4->blocklen ) ;
 | |
|                           /* position swap_ptr at beginning of B4KEY's */
 | |
|          swap_ptr = swap ;
 | |
|          swap_ptr += 6 + sizeof(short) ;
 | |
|                           /* move through all B4KEY's to swap 'long' */
 | |
|          for ( i = 0 ; i < (*(short *)swap) ; i++ )
 | |
|          {
 | |
|             long_val = x4reverse_long( (void *)swap_ptr ) ;
 | |
|             memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|             swap_ptr += r4->grouplen ;
 | |
|          }
 | |
| 
 | |
|          long_val = x4reverse_long( (void *)swap_ptr ) ;
 | |
|          memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
| 
 | |
|                           /* swap the num_keys value */
 | |
|          short_val = x4reverse_short( (void *)swap ) ;
 | |
|          memcpy( swap, (void *) &short_val, sizeof(short) ) ;
 | |
| 
 | |
|          i = file4seq_write( &r4->seqwrite, swap, r4->blocklen) ;
 | |
|          u4free( swap ) ;
 | |
|          if ( i < 0 )
 | |
|             return -1 ;
 | |
|       #else
 | |
|          if ( file4seq_write( &r4->seqwrite, block, r4->blocklen) < 0 )
 | |
|             return -1 ;
 | |
|       #endif  /* S4BYTE_SWAP */
 | |
| 
 | |
|       if ( i_block )
 | |
|          memset( (void *)block, 0, r4->blocklen ) ;
 | |
|       r4->lastblock += r4->lastblock_inc ;
 | |
| 
 | |
|       block = (R4BLOCK_DATA *) ((char *)block + r4->blocklen) ;
 | |
|       i_block++ ;
 | |
|       #ifdef S4DEBUG
 | |
|          if ( i_block >= r4->n_blocks )
 | |
|             e4severe( e4info, E4_I4REINDEX_TD ) ;
 | |
|       #endif  /* S4DEBUG */
 | |
| 
 | |
|       keyto = (B4KEY_DATA *) (block->info +  block->n_keys * r4->grouplen) ;
 | |
|       #ifdef S4DEBUG
 | |
|          dif = (char *) keyto -  (char *) block  ;
 | |
|          if ( ( (unsigned)dif + sizeof( long ) ) > r4->blocklen || dif < 0 )
 | |
|             e4severe( e4result, E4_I4REINDEX_TD ) ;
 | |
|       #endif  /* S4DEBUG */
 | |
|       keyto->num = r4->lastblock ;
 | |
| 
 | |
|       if ( block->n_keys < r4->keysmax )
 | |
|       {
 | |
|          block->n_keys++ ;
 | |
|          #ifdef S4DEBUG
 | |
|             if ( ((unsigned)dif+r4->grouplen) > r4->blocklen )
 | |
|                e4severe( e4result, E4_I4REINDEX_TD ) ;
 | |
|          #endif  /* S4DEBUG */
 | |
|          memcpy( keyto->value, key_on->value, r4->valuelen ) ;
 | |
|          return 0 ;
 | |
|       }
 | |
|    }
 | |
| }
 | |
| #endif  /* ifdef S4MDX */
 | |
| 
 | |
| #ifdef S4FOX
 | |
| int r4reindex_tag_headers_write( R4REINDEX *r4 )
 | |
| {
 | |
|    TAG4 *tag_on ;
 | |
|    INDEX4 *i4 ;
 | |
|    int tot_len, expr_hdr_len ;
 | |
|    int i_tag = 2 ;
 | |
|    char *ptr ;
 | |
|    #ifdef S4BYTE_SWAP
 | |
|       T4HEADER swap_tag_header ;
 | |
|    #endif
 | |
| 
 | |
|    i4 = r4->index ;
 | |
| 
 | |
|    /* Now write the headers  */
 | |
|    file4seq_write_init( &r4->seqwrite, &i4->file, 0L, r4->buffer, r4->buffer_len ) ;
 | |
| 
 | |
|    i4->tag_index->header.free_list = 0L ;
 | |
|    expr_hdr_len = 5*sizeof(short) ;
 | |
|    i4->eof = r4->lastblock + B4BLOCK_SIZE ;
 | |
| 
 | |
|    if ( i4->tag_index->header.type_code >= 64 )
 | |
|    {
 | |
|       #ifdef S4BYTE_SWAP
 | |
|          memcpy( (void *)&swap_tag_header, (void *)&i4->tag_index->header, sizeof(T4HEADER) ) ;
 | |
| 
 | |
|          swap_tag_header.root = x4reverse_long( (void *)&swap_tag_header.root ) ;
 | |
|          swap_tag_header.free_list = x4reverse_long( (void *)&swap_tag_header.free_list ) ;
 | |
|          swap_tag_header.version = x4reverse_long( (void *)&swap_tag_header.version ) ;
 | |
|          swap_tag_header.key_len = x4reverse_short( (void *)&swap_tag_header.key_len ) ;
 | |
|          swap_tag_header.descending = x4reverse_short( (void *)&swap_tag_header.descending ) ;
 | |
|          swap_tag_header.filter_pos = x4reverse_short( (void *)&swap_tag_header.filter_pos ) ;
 | |
|          swap_tag_header.filter_len = x4reverse_short( (void *)&swap_tag_header.filter_len ) ;
 | |
|          swap_tag_header.expr_pos = x4reverse_short( (void *)&swap_tag_header.expr_pos ) ;
 | |
|          swap_tag_header.expr_len = x4reverse_short( (void *)&swap_tag_header.expr_len ) ;
 | |
| 
 | |
|          file4seq_write( &r4->seqwrite, &swap_tag_header, T4HEADER_WR_LEN ) ;  /* write first header part */
 | |
|       #else
 | |
|          file4seq_write( &r4->seqwrite, &i4->tag_index->header, T4HEADER_WR_LEN ) ;  /* write first header part */
 | |
|       #endif
 | |
| 
 | |
|       file4seq_write_repeat( &r4->seqwrite, 486, 0 ) ;
 | |
| 
 | |
|       #ifdef S4BYTE_SWAP
 | |
|          file4seq_write( &r4->seqwrite, &swap_tag_header.descending, expr_hdr_len ) ;
 | |
|       #else
 | |
|          file4seq_write( &r4->seqwrite, &i4->tag_index->header.descending, expr_hdr_len ) ;
 | |
|       #endif
 | |
| 
 | |
|       file4seq_write_repeat( &r4->seqwrite, 512, 0 ) ;  /* no expression */
 | |
|    }
 | |
| 
 | |
|    for ( tag_on = 0 ;; )
 | |
|    {
 | |
|       tag_on = (TAG4 *)l4next( &i4->tags, tag_on ) ;
 | |
|       if ( tag_on == 0 )
 | |
|          break ;
 | |
|       if ( i4->tag_index->header.type_code >= 64 )
 | |
|          tag_on->header_offset = ((long)i_tag) * B4BLOCK_SIZE ;
 | |
|       else
 | |
|          tag_on->header_offset = 0L ;
 | |
| 
 | |
|       #ifdef S4BYTE_SWAP
 | |
|          memcpy( (void *)&swap_tag_header, (void *)&tag_on->header, sizeof(T4HEADER) ) ;
 | |
| 
 | |
|          swap_tag_header.root = x4reverse_long( (void *)&swap_tag_header.root ) ;
 | |
|          swap_tag_header.free_list = x4reverse_long( (void *)&swap_tag_header.free_list ) ;
 | |
|          swap_tag_header.version = x4reverse_long( (void *)&swap_tag_header.version ) ;
 | |
|          swap_tag_header.key_len = x4reverse_short( (void *)&swap_tag_header.key_len ) ;
 | |
|          swap_tag_header.descending = x4reverse_short( (void *)&swap_tag_header.descending ) ;
 | |
|          swap_tag_header.filter_pos = x4reverse_short( (void *)&swap_tag_header.filter_pos ) ;
 | |
|          swap_tag_header.filter_len = x4reverse_short( (void *)&swap_tag_header.filter_len ) ;
 | |
|          swap_tag_header.expr_pos = x4reverse_short( (void *)&swap_tag_header.expr_pos ) ;
 | |
|          swap_tag_header.expr_len = x4reverse_short( (void *)&swap_tag_header.expr_len ) ;
 | |
| 
 | |
|          if ( file4seq_write( &r4->seqwrite, &swap_tag_header, T4HEADER_WR_LEN) < 0 )
 | |
|             return -1 ;
 | |
|       #else
 | |
|          if ( file4seq_write( &r4->seqwrite, &tag_on->header, T4HEADER_WR_LEN) < 0 )
 | |
|             return -1 ;
 | |
|       #endif
 | |
| 
 | |
|       file4seq_write_repeat( &r4->seqwrite, 486, 0 ) ;
 | |
| 
 | |
|       #ifdef S4BYTE_SWAP
 | |
|          file4seq_write( &r4->seqwrite, &swap_tag_header.descending, expr_hdr_len ) ;
 | |
|       #else
 | |
|          file4seq_write( &r4->seqwrite, &tag_on->header.descending, expr_hdr_len ) ;
 | |
|       #endif
 | |
| 
 | |
|       ptr = tag_on->expr->source ;
 | |
|       tot_len = tag_on->header.expr_len ;
 | |
|       file4seq_write( &r4->seqwrite, ptr, tag_on->header.expr_len ) ;
 | |
| 
 | |
|       if ( tag_on->filter != 0 )
 | |
|       {
 | |
|          ptr = tag_on->filter->source ;
 | |
|          file4seq_write( &r4->seqwrite, ptr, tag_on->header.filter_len ) ;
 | |
|          tot_len += tag_on->header.filter_len ;
 | |
|       }
 | |
|       file4seq_write_repeat( &r4->seqwrite, B4BLOCK_SIZE - tot_len, 0 );
 | |
|       i_tag += 2 ;
 | |
|    }
 | |
|    file4len_set( &i4->file, i4->eof ) ;
 | |
| 
 | |
|    if ( file4seq_write_flush(&r4->seqwrite) < 0 )
 | |
|       return -1 ;
 | |
|    return 0 ;
 | |
| 
 | |
| }
 | |
| 
 | |
| int r4reindex_write_keys( R4REINDEX *r4 )
 | |
| {
 | |
|    char last_key[I4MAX_KEY_SIZE], *key_data ;
 | |
|    int is_unique, rc, c_len, t_len, last_trail ;
 | |
|    int on_count, is_first ;
 | |
|    unsigned int k_len ;
 | |
|    void *dummy_ptr ;
 | |
|    long key_rec ;
 | |
|    TAG4 *t4 ;
 | |
|    unsigned long ff, r_len ;
 | |
|    R4BLOCK_DATA *r4block ;
 | |
| 
 | |
|    t4 = r4->tag ;
 | |
|    k_len = t4->header.key_len ;
 | |
|    ff = 0xFFFFFFFF ;
 | |
|    is_first = 1 ;
 | |
| 
 | |
|    memset( last_key, r4->tag->p_char, k_len ) ;
 | |
| 
 | |
|    for ( c_len = 0 ; k_len ; k_len >>= 1, c_len++ ) ;
 | |
|    k_len = t4->header.key_len ;  /* reset the key length */
 | |
|    r4->node_hdr.trail_cnt_len = r4->node_hdr.dup_cnt_len = (unsigned char)c_len ;
 | |
| 
 | |
|    r4->node_hdr.trail_byte_cnt = (unsigned char)(0xFF >> ( 8 - ((c_len / 8) * 8 + c_len % 8))) ;
 | |
|    r4->node_hdr.dup_byte_cnt = r4->node_hdr.trail_byte_cnt ;
 | |
| 
 | |
|    r_len = d4reccount( r4->data ) ;
 | |
|    for ( c_len = 0 ; r_len ; r_len>>=1, c_len++ ) ;
 | |
|    r4->node_hdr.rec_num_len = (unsigned char) c_len ;
 | |
|    if ( r4->node_hdr.rec_num_len < 12 )
 | |
|       r4->node_hdr.rec_num_len = 12 ;
 | |
| 
 | |
|    for( t_len = r4->node_hdr.rec_num_len + r4->node_hdr.trail_cnt_len + r4->node_hdr.dup_cnt_len ;
 | |
|         (t_len / 8)*8 != t_len ; t_len++, r4->node_hdr.rec_num_len++ ) ;  /* make at an 8-bit offset */
 | |
| 
 | |
|    r_len = ff >> ( sizeof(long)*8 - r4->node_hdr.rec_num_len ) ;
 | |
|    memcpy( (void *)&r4->node_hdr.rec_num_mask[0], (void *)&r_len, sizeof(long) ) ;
 | |
| 
 | |
|    r4->node_hdr.info_len = (unsigned char)((unsigned int)(r4->node_hdr.rec_num_len + r4->node_hdr.trail_cnt_len + r4->node_hdr.dup_cnt_len) / 8) ;
 | |
|    r4->valuelen = t4->header.key_len ;
 | |
|    r4->grouplen = t4->header.key_len + 2*sizeof(long) ;
 | |
| 
 | |
|    memset( (void *)r4->start_block, 0, r4->n_blocks * B4BLOCK_SIZE ) ;
 | |
| 
 | |
|    #ifdef S4FOX
 | |
|       for ( r4block = r4->start_block, on_count = 0 ; on_count < r4->n_blocks;
 | |
|             r4block = (R4BLOCK_DATA *) ( (char *)r4block + B4BLOCK_SIZE), on_count++ )
 | |
|       {
 | |
|          memset( (void *)r4block, 0, B4BLOCK_SIZE ) ;
 | |
|          r4block->header.left_node = -1 ;
 | |
|          r4block->header.right_node = -1 ;
 | |
|       }
 | |
|    #endif  /* S4FOX */
 | |
| 
 | |
|    r4->node_hdr.free_space = B4BLOCK_SIZE - sizeof( B4STD_HEADER ) - sizeof( B4NODE_HEADER ) ;
 | |
| 
 | |
|    r4->keysmax = (B4BLOCK_SIZE - sizeof( B4STD_HEADER ) ) / r4->grouplen ;
 | |
| 
 | |
|    #ifdef S4DEBUG
 | |
|       if ( r4->node_hdr.free_space <= 0 || r4->keysmax <= 0 )
 | |
|          e4severe( e4info, E4_I4REINDEX_WK ) ;
 | |
|    #endif
 | |
| 
 | |
|    if ( sort4get_init( &r4->sort ) < 0 )
 | |
|       return -1 ;
 | |
| 
 | |
|    file4seq_write_init( &r4->seqwrite, &r4->index->file, r4->lastblock+B4BLOCK_SIZE, r4->buffer,r4->buffer_len) ;
 | |
| 
 | |
|    #ifdef S4DEBUG
 | |
|       if ( I4MAX_KEY_SIZE < r4->sort.sort_len )
 | |
|          e4severe( e4info, E4_I4REINDEX_WK ) ;
 | |
|    #endif  /* S4DEBUG */
 | |
|    last_trail = k_len ;   /* default is no available duplicates */
 | |
|    is_unique = t4->header.type_code & 0x01 ;
 | |
| 
 | |
|    for(;;)  /* For each key to write */
 | |
|    {
 | |
|       if ( (rc = sort4get( &r4->sort, &key_rec, (void **) &key_data, &dummy_ptr)) < 0 )
 | |
|          return -1 ;
 | |
| 
 | |
|       #ifdef S4DEBUG
 | |
|          if ( r4->key_count < 0L || r4->key_count == 0L && rc != 1 || r4->key_count > 0L && rc == 1 )
 | |
|             e4severe( e4info, E4_I4REINDEX_WK ) ;
 | |
|          r4->key_count-- ;
 | |
|       #endif  /* S4DEBUG */
 | |
| 
 | |
|       if ( rc == 1 )  /* No more keys */
 | |
|       {
 | |
|          if ( r4reindex_finish(r4, last_key ) < 0 )
 | |
|             return -1 ;
 | |
|          if ( file4seq_write_flush(&r4->seqwrite) < 0 )
 | |
|             return -1 ;
 | |
|          break ;
 | |
|       }
 | |
| 
 | |
|       if ( is_unique )
 | |
|       {
 | |
|          if( is_first )
 | |
|             is_first = 0 ;
 | |
|          else
 | |
|             if ( (u4memcmp)( key_data, last_key, r4->sort.sort_len) == 0 )
 | |
|             {
 | |
|                switch( t4->unique_error )
 | |
|                {
 | |
|                   case e4unique:
 | |
|                      return e4describe( r4->code_base, e4unique, E4_UNIQUE, t4->alias, (char *) 0 ) ;
 | |
| 
 | |
|                   case r4unique:
 | |
|                      return r4unique ;
 | |
| 
 | |
|                   default:
 | |
|                      continue ;
 | |
|                }
 | |
|             }
 | |
|       }
 | |
| 
 | |
|       /* Add the key */
 | |
|       if ( r4reindex_add( r4, key_rec, key_data, last_key, &last_trail ) < 0 )
 | |
|           return -1 ;
 | |
|       memcpy( last_key, key_data, r4->sort.sort_len ) ;
 | |
|    }
 | |
| 
 | |
|    /* Now complete the tag header info. */
 | |
|    t4->header.root = r4->lastblock ;
 | |
|    return 0 ;
 | |
| }
 | |
| 
 | |
| /* for compact leaf nodes only */
 | |
| int r4reindex_add( R4REINDEX *r4, long rec, char *key_value, char *last_key, int *last_trail )
 | |
| {
 | |
|    R4BLOCK_DATA *start_block ;
 | |
|    int dup_cnt, trail, k_len, i_len, len ;
 | |
|    unsigned char buffer[6] ;
 | |
|    char *info_pos ;
 | |
| 
 | |
|    start_block = r4->start_block ;
 | |
|    k_len = r4->valuelen ;
 | |
|    i_len = r4->node_hdr.info_len ;
 | |
| 
 | |
|    if ( start_block->header.n_keys == 0 )   /* reset */
 | |
|    {
 | |
|       dup_cnt = 0 ;
 | |
|       r4->cur_pos = ((char *)start_block) + B4BLOCK_SIZE ;
 | |
|       memcpy( ((char *)start_block) + sizeof( B4STD_HEADER ), (void *)&r4->node_hdr, sizeof( B4NODE_HEADER ) ) ;
 | |
|       start_block->header.node_attribute |= 2 ;   /* leaf block */
 | |
|       *last_trail = k_len ;
 | |
|    }
 | |
|    else
 | |
|       dup_cnt = b4calc_dups( key_value, last_key, k_len ) ;
 | |
| 
 | |
|    if ( dup_cnt > k_len - *last_trail )  /* don't allow duplicating trail bytes */
 | |
|       dup_cnt = k_len - *last_trail ;
 | |
| 
 | |
|    if ( dup_cnt == k_len ) /* duplicate key */
 | |
|       trail = 0 ;
 | |
|    else
 | |
|       trail = b4calc_blanks( key_value, k_len, r4->tag->p_char ) ;
 | |
| 
 | |
|    *last_trail = trail ;
 | |
| 
 | |
|    if ( dup_cnt > k_len - *last_trail )  /* watch for case where < ' ' exissts */
 | |
|       dup_cnt = k_len - *last_trail ;
 | |
| 
 | |
|    len = k_len - dup_cnt - trail ;
 | |
|    if ( r4->node_hdr.free_space < i_len + len )
 | |
|    {
 | |
|       if ( r4reindex_todisk(r4, last_key) < 0 )
 | |
|           return -1 ;
 | |
|       r4->node_hdr.free_space = B4BLOCK_SIZE - sizeof( B4STD_HEADER ) - sizeof( B4NODE_HEADER ) ;
 | |
|       dup_cnt = 0 ;
 | |
|       r4->cur_pos = ((char *)start_block) + B4BLOCK_SIZE ;
 | |
|       memcpy( ((char *)&start_block->header) + sizeof( B4STD_HEADER ), (void *)&r4->node_hdr, sizeof( B4NODE_HEADER ) ) ;
 | |
|       start_block->header.node_attribute |= 2 ;   /* leaf block */
 | |
|       trail = b4calc_blanks( key_value, k_len, r4->tag->p_char ) ;
 | |
|       len = k_len - trail ;
 | |
|    }
 | |
| 
 | |
|    r4->cur_pos -= len ;
 | |
|    memcpy( r4->cur_pos, key_value + dup_cnt, len ) ;
 | |
|    info_pos = ((char *)&start_block->header) + sizeof(B4STD_HEADER) +
 | |
|                sizeof(B4NODE_HEADER) + start_block->header.n_keys*i_len ;
 | |
|    x4put_info( &r4->node_hdr, buffer, rec, trail, dup_cnt ) ;
 | |
|    memcpy( info_pos, (void *)buffer, i_len ) ;
 | |
| 
 | |
|    r4->node_hdr.free_space -= (unsigned char) ( len + i_len ) ;
 | |
|    start_block->header.n_keys++ ;
 | |
|    return 0 ;
 | |
| }
 | |
| 
 | |
| int r4reindex_finish( R4REINDEX *r4, char *key_value )
 | |
| {
 | |
|    R4BLOCK_DATA *block ;
 | |
|    int i_block ;
 | |
|    long rev_lb ;
 | |
|    char *keyto ;
 | |
|    long l_recno ;
 | |
|    #ifdef S4UNIX
 | |
|       long long_temp ;
 | |
|    #endif
 | |
|    #ifdef S4BYTE_SWAP
 | |
|       char swap[B4BLOCK_SIZE] ;
 | |
|       char *swap_ptr ;
 | |
|       int i ;
 | |
|       S4LONG long_val ;
 | |
|       short short_val ;
 | |
|    #endif
 | |
| 
 | |
|    block = r4->start_block ;
 | |
| 
 | |
|    if ( r4->n_blocks_used <= 1 ) /* just output first block */
 | |
|    {
 | |
|       memcpy( ((char *)block) + sizeof( B4STD_HEADER ), (void *)&r4->node_hdr, sizeof( B4NODE_HEADER ) ) ;
 | |
| 
 | |
|       block->header.node_attribute |= (short)3 ;   /* leaf and root block */
 | |
| 
 | |
|       #ifdef S4BYTE_SWAP
 | |
|          memcpy( (void *)swap, (void *)block, B4BLOCK_SIZE ) ;
 | |
| 
 | |
|                   /* position at either B4NODE_HEADER (leaf) or data (branch) */
 | |
|          swap_ptr = swap + 2 * sizeof( short) + 2 * sizeof(S4LONG) ;
 | |
| 
 | |
|                              /* if block is a leaf */
 | |
|          if (block->header.node_attribute >= 2 )
 | |
|          {
 | |
|                     /* swap B4NODE_HEADER members */
 | |
|             short_val = x4reverse_short( (void *)swap_ptr ) ; /* free_space */
 | |
|             memcpy( swap_ptr, (void *) &short_val, sizeof(short) ) ;
 | |
|             swap_ptr += sizeof(short) ;
 | |
| 
 | |
|             long_val = x4reverse_long( (void *)swap_ptr ) ;   /* rec_num_mask */
 | |
|             memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|          }
 | |
|          else                /* if block is a branch */
 | |
|          {
 | |
|             short_val = r4->tag->header.key_len + sizeof(S4LONG) ;
 | |
| 
 | |
|                           /* position swap_ptr to end of first key expression */
 | |
|             swap_ptr += r4->tag->header.key_len ;
 | |
| 
 | |
|                           /* move through all B4KEY's to swap 'long's */
 | |
|             for ( i = 0 ; i < (int)block->header.n_keys ; i++ )
 | |
|             {
 | |
|                long_val = x4reverse_long( (void *)swap_ptr ) ;
 | |
|                memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|                swap_ptr += sizeof(S4LONG) ;
 | |
|                long_val = x4reverse_long( (void *)swap_ptr ) ;
 | |
|                memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|                swap_ptr += short_val ;
 | |
|             }
 | |
|          }
 | |
| 
 | |
|                   /* reposition to B4STD_HEADER and swap members */
 | |
|          swap_ptr = swap ;
 | |
| 
 | |
|          short_val = x4reverse_short( (void *)swap_ptr ) ; /* node_attribute */
 | |
|          memcpy( swap_ptr, (void *) &short_val, sizeof(short) ) ;
 | |
|          swap_ptr += sizeof(short) ;
 | |
| 
 | |
|          short_val = x4reverse_short( (void *)swap_ptr ) ; /* n_keys */
 | |
|          memcpy( swap_ptr, (void *) &short_val, sizeof(short) ) ;
 | |
|          swap_ptr += sizeof(short) ;
 | |
| 
 | |
|          long_val = x4reverse_long( (void *)swap_ptr ) ;   /* left_node */
 | |
|          memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|          swap_ptr += sizeof(S4LONG) ;
 | |
| 
 | |
|          long_val = x4reverse_long( (void *)swap_ptr ) ;   /* right_node */
 | |
|          memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|          swap_ptr += sizeof(S4LONG) ;
 | |
| 
 | |
|          if ( file4seq_write( &r4->seqwrite, swap,B4BLOCK_SIZE) < 0 )
 | |
|             return -1;
 | |
|       #else
 | |
|          if ( file4seq_write( &r4->seqwrite, block,B4BLOCK_SIZE) < 0 )
 | |
|             return -1;
 | |
|       #endif
 | |
|       r4->lastblock += B4BLOCK_SIZE ;
 | |
|    }
 | |
|    else
 | |
|    {
 | |
|       memcpy( (void *)&l_recno, (void *) (((char *) (&block->header)) + sizeof(B4STD_HEADER)
 | |
|               + sizeof(B4NODE_HEADER) + (block->header.n_keys - 1) * r4->node_hdr.info_len), sizeof( long ) ) ;
 | |
|       #ifdef S4DO_BYTEORDER
 | |
|          l_recno = x4reverse_long( (void *)&l_recno ) ;
 | |
|       #endif
 | |
|       #ifdef S4UNIX
 | |
|          memcpy( (void *)&long_temp, (void *)&r4->node_hdr.rec_num_mask[0], sizeof(S4LONG) ) ;
 | |
|          l_recno &= long_temp ;
 | |
|       #else
 | |
|          l_recno &= *(long *)&r4->node_hdr.rec_num_mask[0] ;
 | |
|       #endif
 | |
| 
 | |
|       if ( block->header.node_attribute >= 2 )  /* if leaf, record free_space */
 | |
|          memcpy( ((char *)block) + sizeof( B4STD_HEADER ), (void *)&r4->node_hdr, sizeof( B4NODE_HEADER ) ) ;
 | |
| 
 | |
|       #ifdef S4BYTE_SWAP
 | |
|          memcpy( (void *)swap, (void *)r4->start_block, B4BLOCK_SIZE ) ;
 | |
| 
 | |
|                   /* position at either B4NODE_HEADER (leaf) or data (branch) */
 | |
|          swap_ptr = swap + 2 * sizeof( short) + 2 * sizeof(S4LONG) ;
 | |
| 
 | |
|                              /* if block is a leaf */
 | |
|          if (block->header.node_attribute >= 2 )
 | |
|          {
 | |
|                     /* swap B4NODE_HEADER members */
 | |
|             short_val = x4reverse_short( (void *)swap_ptr ) ; /* free_space */
 | |
|             memcpy( swap_ptr, (void *) &short_val, sizeof(short) ) ;
 | |
|             swap_ptr += sizeof(short) ;
 | |
| 
 | |
|             long_val = x4reverse_long( (void *)swap_ptr ) ;   /* rec_num_mask */
 | |
|             memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|          }
 | |
|          else                /* if block is a branch */
 | |
|          {
 | |
|             short_val = r4->tag->header.key_len + sizeof(S4LONG) ;
 | |
| 
 | |
|                           /* position swap_ptr to end of first key expression */
 | |
|             swap_ptr += r4->tag->header.key_len ;
 | |
| 
 | |
|                           /* move through all B4KEY's to swap 'long's */
 | |
|             for ( i = 0 ; i < (int) block->header.n_keys ; i++ )
 | |
|             {
 | |
|                long_val = x4reverse_long( (void *)swap_ptr ) ;
 | |
|                memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|                swap_ptr += sizeof(S4LONG) ;
 | |
|                long_val = x4reverse_long( (void *)swap_ptr ) ;
 | |
|                memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|                swap_ptr += short_val ;
 | |
|             }
 | |
|          }
 | |
| 
 | |
|                   /* reposition to B4STD_HEADER and swap members */
 | |
|          swap_ptr = swap ;
 | |
| 
 | |
|          short_val = x4reverse_short( (void *)swap_ptr ) ; /* node_attribute */
 | |
|          memcpy( swap_ptr, (void *) &short_val, sizeof(short) ) ;
 | |
|          swap_ptr += sizeof(short) ;
 | |
| 
 | |
|          short_val = x4reverse_short( (void *)swap_ptr ) ; /* n_keys */
 | |
|          memcpy( swap_ptr, (void *) &short_val, sizeof(short) ) ;
 | |
|          swap_ptr += sizeof(short) ;
 | |
| 
 | |
|          long_val = x4reverse_long( (void *)swap_ptr ) ;   /* left_node */
 | |
|          memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|          swap_ptr += sizeof(S4LONG) ;
 | |
| 
 | |
|          long_val = x4reverse_long( (void *)swap_ptr ) ;   /* right_node */
 | |
|          memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|          swap_ptr += sizeof(S4LONG) ;
 | |
| 
 | |
|          if ( file4seq_write( &r4->seqwrite, swap,B4BLOCK_SIZE) < 0 )
 | |
|             return -1;
 | |
|       #else
 | |
|          if ( file4seq_write(&r4->seqwrite, r4->start_block,B4BLOCK_SIZE) < 0 )
 | |
|             return -1 ;
 | |
|       #endif
 | |
| 
 | |
|       r4->lastblock += B4BLOCK_SIZE ;
 | |
| 
 | |
|       l_recno = x4reverse_long( (void *)&l_recno ) ;
 | |
| 
 | |
|       for( i_block=1; i_block < r4->n_blocks_used ; i_block++ )
 | |
|       {
 | |
|          block = (R4BLOCK_DATA *) ((char *)block + B4BLOCK_SIZE) ;
 | |
| /*         if ( block->header.n_keys >= 1 ) */
 | |
| /*         { */
 | |
|             keyto = ((char *) (&block->header)) + sizeof(B4STD_HEADER) + block->header.n_keys * r4->grouplen ;
 | |
|             block->header.n_keys++ ;
 | |
|             #ifdef S4DEBUG
 | |
|                if ( (char *) keyto -  (char *) block + r4->grouplen > B4BLOCK_SIZE ||
 | |
|                     (char *) keyto -  (char *) block < 0 )
 | |
|                   e4severe( e4result, E4_I4REINDEX_FN ) ;
 | |
|             #endif  /* S4DEBUG */
 | |
|             memcpy( keyto, (void *)key_value, r4->valuelen ) ;
 | |
|             keyto += r4->valuelen ;
 | |
|             memcpy( keyto, (void *)&l_recno, sizeof( long ) ) ;
 | |
|             rev_lb = x4reverse_long( (void *)&r4->lastblock ) ;
 | |
|             memcpy( keyto + sizeof( long ), (void *)&rev_lb, sizeof( long ) ) ;
 | |
| 
 | |
|             if ( i_block == r4->n_blocks_used - 1 )
 | |
|                block->header.node_attribute = 1 ;  /* root block */
 | |
| 
 | |
|             #ifdef S4BYTE_SWAP
 | |
|                memcpy( (void *)swap, (void *)block, B4BLOCK_SIZE ) ;
 | |
| 
 | |
|                         /* position at either B4NODE_HEADER (leaf) or data (branch) */
 | |
|                swap_ptr = swap + 2 * sizeof( short) + 2 * sizeof(S4LONG) ;
 | |
| 
 | |
|                                    /* if block is a leaf */
 | |
|                if (block->header.node_attribute >= 2 )
 | |
|                {
 | |
|                           /* swap B4NODE_HEADER members */
 | |
|                   short_val = x4reverse_short( (void *)swap_ptr ) ; /* free_space */
 | |
|                   memcpy( swap_ptr, (void *) &short_val, sizeof(short) ) ;
 | |
|                   swap_ptr += sizeof(short) ;
 | |
| 
 | |
|                   long_val = x4reverse_long( (void *)swap_ptr ) ;   /* rec_num_mask */
 | |
|                   memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|                }
 | |
|                else                /* if block is a branch */
 | |
|                {
 | |
|                   short_val = r4->tag->header.key_len + sizeof(S4LONG) ;
 | |
| 
 | |
|                                 /* position swap_ptr to end of first key expression */
 | |
|                   swap_ptr += r4->tag->header.key_len ;
 | |
| 
 | |
|                                 /* move through all B4KEY's to swap 'long's */
 | |
|                   for ( i = 0 ; i < (int) block->header.n_keys ; i++ )
 | |
|                   {
 | |
|                      long_val = x4reverse_long( (void *)swap_ptr ) ;
 | |
|                      memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|                      swap_ptr += sizeof(S4LONG) ;
 | |
|                      long_val = x4reverse_long( (void *)swap_ptr ) ;
 | |
|                      memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|                      swap_ptr += short_val ;
 | |
|                   }
 | |
|                }
 | |
| 
 | |
|                         /* reposition to B4STD_HEADER and swap members */
 | |
|                swap_ptr = swap ;
 | |
| 
 | |
|                short_val = x4reverse_short( (void *)swap_ptr ) ; /* node_attribute */
 | |
|                memcpy( swap_ptr, (void *) &short_val, sizeof(short) ) ;
 | |
|                swap_ptr += sizeof(short) ;
 | |
| 
 | |
|                short_val = x4reverse_short( (void *)swap_ptr ) ; /* n_keys */
 | |
|                memcpy( swap_ptr, (void *) &short_val, sizeof(short) ) ;
 | |
|                swap_ptr += sizeof(short) ;
 | |
| 
 | |
|                long_val = x4reverse_long( (void *)swap_ptr ) ;   /* left_node */
 | |
|                memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|                swap_ptr += sizeof(S4LONG) ;
 | |
| 
 | |
|                long_val = x4reverse_long( (void *)swap_ptr ) ;   /* right_node */
 | |
|                memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|                swap_ptr += sizeof(S4LONG) ;
 | |
| 
 | |
|                if ( file4seq_write( &r4->seqwrite, swap, B4BLOCK_SIZE) < 0)
 | |
|                   return -1;
 | |
|             #else
 | |
|                if ( file4seq_write( &r4->seqwrite, block, B4BLOCK_SIZE) < 0)
 | |
|                   return -1;
 | |
|             #endif
 | |
| 
 | |
|             r4->lastblock += B4BLOCK_SIZE ;
 | |
| /*         } */
 | |
|       }
 | |
|    }
 | |
| 
 | |
|    return 0 ;
 | |
| }
 | |
| 
 | |
| /* Writes out the current block and adds references to higher blocks */
 | |
| int r4reindex_todisk( R4REINDEX *r4, char* key_value )
 | |
| {
 | |
|    R4BLOCK_DATA *block ;
 | |
|    long l_recno, rev_lb ;
 | |
|    int tn_used ;
 | |
|    char *keyto ;
 | |
|    #ifdef S4UNIX
 | |
|       long long_temp ;
 | |
|    #endif
 | |
|    #ifdef S4BYTE_SWAP
 | |
|       char swap[B4BLOCK_SIZE] ;
 | |
|       char *swap_ptr ;
 | |
|       int i ;
 | |
|       S4LONG long_val ;
 | |
|       short short_val ;
 | |
|    #endif
 | |
|    #ifdef S4DEBUG
 | |
|       int i_block = 0 ;
 | |
|       i_block = 0 ;
 | |
|    #endif
 | |
| 
 | |
|    block = r4->start_block ;
 | |
|    tn_used = 1 ;
 | |
| 
 | |
|    memcpy( (void *)&l_recno, ((unsigned char *) (&block->header)) + sizeof(B4STD_HEADER)
 | |
|            + sizeof(B4NODE_HEADER) + (block->header.n_keys - 1) * r4->node_hdr.info_len, sizeof( long ) ) ;
 | |
|    #ifdef S4DO_BYTEORDER
 | |
|       l_recno = x4reverse_long( (void *)&l_recno ) ;
 | |
|    #endif
 | |
|    #ifdef S4UNIX
 | |
|       memcpy( (void *)&long_temp, (void *)&r4->node_hdr.rec_num_mask[0], sizeof(S4LONG) ) ;
 | |
|       l_recno &= long_temp ;
 | |
|    #else
 | |
|       l_recno &= *(long *)&r4->node_hdr.rec_num_mask[0] ;
 | |
|    #endif
 | |
|    l_recno = x4reverse_long( (void *)&l_recno ) ;
 | |
| 
 | |
|    for(;;)
 | |
|    {
 | |
|       tn_used++ ;
 | |
|       r4->lastblock += B4BLOCK_SIZE ;
 | |
|       /* next line only works when on leaf branches... */
 | |
|       block->header.right_node = r4->lastblock + B4BLOCK_SIZE ;
 | |
|       if ( block->header.node_attribute >= 2 )  /* if leaf, record free_space */
 | |
|          memcpy( ((char *)block) + sizeof( B4STD_HEADER ), (void *)&r4->node_hdr.free_space, sizeof( r4->node_hdr.free_space ) ) ;
 | |
| 
 | |
|       #ifdef S4BYTE_SWAP
 | |
|          memcpy( (void *)swap, (void *)block, B4BLOCK_SIZE ) ;
 | |
| 
 | |
|                   /* position at either B4NODE_HEADER (leaf) or data (branch) */
 | |
|          swap_ptr = swap + 2 * sizeof( short) + 2 * sizeof(S4LONG) ;
 | |
| 
 | |
|                              /* if block is a leaf */
 | |
|          if (r4->start_block->header.node_attribute >= 2 )
 | |
|          {
 | |
|                     /* swap B4NODE_HEADER members */
 | |
|             short_val = x4reverse_short( (void *)swap_ptr ) ; /* free_space */
 | |
|             memcpy( swap_ptr, (void *) &short_val, sizeof(short) ) ;
 | |
|             swap_ptr += sizeof(short) ;
 | |
| 
 | |
|             long_val = x4reverse_long( (void *)swap_ptr ) ;   /* rec_num_mask */
 | |
|             memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|          }
 | |
|          else                /* if block is a branch */
 | |
|          {
 | |
|             short_val = r4->tag->header.key_len + sizeof(S4LONG) ;
 | |
| 
 | |
|                           /* position swap_ptr to end of first key expression */
 | |
|             swap_ptr += r4->tag->header.key_len ;
 | |
| 
 | |
|                           /* move through all B4KEY's to swap 'long's */
 | |
|             for ( i = 0 ; i < (int) block->header.n_keys ; i++ )
 | |
|             {
 | |
|                long_val = x4reverse_long( (void *)swap_ptr ) ;
 | |
|                memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|                swap_ptr += sizeof(S4LONG) ;
 | |
|                long_val = x4reverse_long( (void *)swap_ptr ) ;
 | |
|                memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|                swap_ptr += short_val ;
 | |
|             }
 | |
|          }
 | |
| 
 | |
|                   /* reposition to B4STD_HEADER and swap members */
 | |
|          swap_ptr = swap ;
 | |
| 
 | |
|          short_val = x4reverse_short( (void *)swap_ptr ) ; /* node_attribute */
 | |
|          memcpy( swap_ptr, (void *) &short_val, sizeof(short) ) ;
 | |
|          swap_ptr += sizeof(short) ;
 | |
| 
 | |
|          short_val = x4reverse_short( (void *)swap_ptr ) ; /* n_keys */
 | |
|          memcpy( swap_ptr, (void *) &short_val, sizeof(short) ) ;
 | |
|          swap_ptr += sizeof(short) ;
 | |
| 
 | |
|          long_val = x4reverse_long( (void *)swap_ptr ) ;   /* left_node */
 | |
|          memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|          swap_ptr += sizeof(S4LONG) ;
 | |
| 
 | |
|          long_val = x4reverse_long( (void *)swap_ptr ) ;   /* right_node */
 | |
|          memcpy( swap_ptr, (void *) &long_val, sizeof(S4LONG) ) ;
 | |
|          swap_ptr += sizeof(S4LONG) ;
 | |
| 
 | |
|          if ( file4seq_write( &r4->seqwrite, swap, B4BLOCK_SIZE) < 0)
 | |
|             return -1;
 | |
|       #else
 | |
|          if ( file4seq_write( &r4->seqwrite, block, B4BLOCK_SIZE) < 0 )
 | |
|             return -1 ;
 | |
|       #endif
 | |
| 
 | |
|       memset( (void *)block, 0, B4BLOCK_SIZE ) ;
 | |
|       block->header.left_node = r4->lastblock ;
 | |
|       block->header.right_node = -1 ;
 | |
| 
 | |
|       block = (R4BLOCK_DATA *) ((char *)block + B4BLOCK_SIZE) ;
 | |
|       #ifdef S4DEBUG
 | |
|          i_block++ ;
 | |
|          if ( i_block >= r4->n_blocks )
 | |
|             e4severe( e4info, E4_I4REINDEX_TD ) ;
 | |
|       #endif  /* S4DEBUG */
 | |
| 
 | |
|       if ( block->header.n_keys < r4->keysmax )
 | |
|       {
 | |
|          keyto = ((char *) (&block->header)) + sizeof(B4STD_HEADER) + block->header.n_keys * r4->grouplen ;
 | |
|          block->header.n_keys++ ;
 | |
|          #ifdef S4DEBUG
 | |
|             if ( (char *) keyto -  (char *) block + r4->grouplen > B4BLOCK_SIZE || (char *) keyto -  (char *) block < 0 )
 | |
|                e4severe( e4result, E4_I4REINDEX_TD ) ;
 | |
|          #endif  /* S4DEBUG */
 | |
|          memcpy( keyto, (void *)key_value, r4->valuelen ) ;
 | |
|          keyto += r4->valuelen ;
 | |
|          memcpy( keyto, (void *)&l_recno, sizeof( long ) ) ;
 | |
|          rev_lb = x4reverse_long( (void *)&r4->lastblock ) ;
 | |
|          memcpy( keyto + sizeof( long ), (void *)&rev_lb, sizeof( long ) ) ;
 | |
| 
 | |
|          if ( block->header.n_keys < r4->keysmax )  /* then done, else do next one up */
 | |
|          {
 | |
|             if ( tn_used > r4->n_blocks_used )
 | |
|                r4->n_blocks_used = tn_used ;
 | |
|             return 0 ;
 | |
|          }
 | |
|       }
 | |
|       #ifdef S4DEBUG
 | |
|          else  /* should never occur */
 | |
|             e4severe( e4result, E4_I4REINDEX_TD ) ;
 | |
|       #endif  /* S4DEBUG */
 | |
|    }
 | |
| }
 | |
| #endif  /* S4FOX */
 | |
| #endif  /* N4OTHER  */
 | |
| #endif  /* S4INDEX_OFF */
 | |
| #endif  /* S4WRITE_OFF */
 |