BGI/SOAPdenovo2/standardPregraph/darray.c

   1 /*
   2  * darray.c
   3  *
   4  * Copyright (c) 2008-2012 BGI-Shenzhen <soap at genomics dot org dot cn>.
   5  *
   6  * This file is part of SOAPdenovo.
   7  *
   8  * SOAPdenovo is free software: you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation, either version 3 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * SOAPdenovo is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with SOAPdenovo.  If not, see <http://www.gnu.org/licenses/>.
  20  *
  21  */
  22
  23 #include "darray.h"
  24 #include "check.h"
  25
  26 DARRAY * createDarray ( int num_items, size_t unit_size )
  27 {
  28         DARRAY * newDarray = ( DARRAY * ) malloc ( 1 * sizeof ( DARRAY ) );
  29         newDarray->array_size = num_items;
  30         newDarray->item_size = unit_size;
  31         newDarray->item_c = 0;
  32         newDarray->array = ( void * ) ckalloc ( num_items * unit_size );
  33         return newDarray;
  34 }
  35
  36 void * darrayPut ( DARRAY * darray, long long index )
  37 {
  38         int i = 2;
  39
  40         if ( index + 1 > darray->item_c )
  41         {
  42                 darray->item_c = index + 1;
  43         }
  44
  45         if ( index < darray->array_size )
  46         {
  47                 return darray->array + darray->item_size * index;
  48         }
  49
  50         while ( index > i * darray->array_size )
  51         {
  52                 i++;
  53         }
  54
  55         darray->array = ( void * ) ckrealloc ( darray->array, i * darray->array_size * darray->item_size, darray->array_size * darray->item_size );
  56         darray->array_size *= i;
  57         return ( void * ) ( ( void * ) darray->array + darray->item_size * index );
  58 }
  59
  60 void * darrayGet ( DARRAY * darray, long long index )
  61 {
  62         if ( index < darray->array_size )
  63         {
  64                 return ( void * ) ( ( void * ) darray->array + darray->item_size * index );
  65         }
  66
  67         fprintf ( stderr, "Index %lld of the array is out of range and the size is %lld.\n", index, darray->array_size );
  68         return NULL;
  69 }
  70
  71 void emptyDarray ( DARRAY * darray )
  72 {
  73         darray->item_c = 0;
  74 }
  75
  76 void freeDarray ( DARRAY * darray )
  77 {
  78         if ( !darray )
  79         {
  80                 return;
  81         }
  82
  83         if ( darray->array )
  84         {
  85                 free ( ( void * ) darray->array );
  86         }
  87
  88         free ( ( void * ) darray );
  89 }