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359 | serge | 1 | /**************************************************************************** |
2 | * |
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3 | * Open Watcom Project |
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4 | * |
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5 | * Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved. |
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6 | * |
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7 | * ======================================================================== |
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8 | * |
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9 | * This file contains Original Code and/or Modifications of Original |
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10 | * Code as defined in and that are subject to the Sybase Open Watcom |
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11 | * Public License version 1.0 (the 'License'). You may not use this file |
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12 | * except in compliance with the License. BY USING THIS FILE YOU AGREE TO |
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13 | * ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is |
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14 | * provided with the Original Code and Modifications, and is also |
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15 | * available at www.sybase.com/developer/opensource. |
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16 | * |
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17 | * The Original Code and all software distributed under the License are |
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18 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
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19 | * EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM |
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20 | * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF |
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21 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR |
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22 | * NON-INFRINGEMENT. Please see the License for the specific language |
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23 | * governing rights and limitations under the License. |
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24 | * |
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25 | * ======================================================================== |
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26 | * |
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27 | * Description: WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE |
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28 | * DESCRIBE IT HERE! |
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29 | * |
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30 | ****************************************************************************/ |
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31 | |||
32 | |||
33 | //#include "dll.h" // needs to be first |
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34 | #include "variety.h" |
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35 | #include |
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36 | #include |
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37 | #include "heap.h" |
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38 | #include "heapacc.h" |
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39 | |||
40 | /* return the number of times that _nmalloc can be called to allocate |
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41 | and item "size" bytes from the near heap. */ |
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42 | |||
43 | _WCRTLINK unsigned int _freect( size_t size ) |
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44 | { |
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45 | unsigned int count; |
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46 | size_t memsize; |
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47 | size_t size_of_chunk; |
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48 | frlptr pnext; |
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49 | mheapptr mhp; |
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50 | |||
51 | count = 0; |
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52 | size_of_chunk = (size + TAG_SIZE + ROUND_SIZE) & ~ROUND_SIZE; |
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53 | if( size_of_chunk < size ) return( 0 ); |
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54 | if( size_of_chunk < FRL_SIZE ) { |
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55 | size_of_chunk = FRL_SIZE; |
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56 | } |
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57 | _AccessNHeap(); |
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58 | for( mhp = __nheapbeg; mhp != NULL; mhp = mhp->next ) { |
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59 | pnext = mhp->freehead.next; |
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60 | while( pnext != (frlptr) &mhp->freehead ) { |
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61 | memsize = pnext->len; |
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62 | count += memsize / size_of_chunk; |
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63 | pnext = pnext->next; |
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64 | } |
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65 | } |
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66 | _ReleaseNHeap(); |
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67 | return( count ); |
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68 | }>> |