1 | |
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2 | /* |
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3 | * _calloc_r Implementation |
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4 | * |
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5 | * COPYRIGHT (c) 1989-2007. |
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6 | * On-Line Applications Research Corporation (OAR). |
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7 | * |
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8 | * The license and distribution terms for this file may be |
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9 | * found in the file LICENSE in this distribution or at |
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10 | * http://www.rtems.com/license/LICENSE. |
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11 | * |
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12 | * $Id$ |
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13 | */ |
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14 | |
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15 | #if HAVE_CONFIG_H |
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16 | #include "config.h" |
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17 | #endif |
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18 | |
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19 | #ifdef RTEMS_NEWLIB |
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20 | #include "malloc_p.h" |
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21 | |
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22 | #include <sys/reent.h> |
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23 | #include <stdlib.h> |
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24 | |
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25 | |
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26 | void rtems_malloc_statistics_initialize( void ) |
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27 | { |
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28 | /* |
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29 | * Zero all the statistics |
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30 | */ |
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31 | (void) memset(&rtems_malloc_statistics, 0, sizeof(rtems_malloc_statistics)); |
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32 | } |
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33 | |
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34 | void rtems_malloc_statistics_at_malloc( |
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35 | void *pointer |
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36 | ) |
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37 | { |
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38 | size_t actual_size = 0; |
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39 | uint32_t current_depth; |
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40 | rtems_malloc_statistics_t *s = &rtems_malloc_statistics; |
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41 | |
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42 | if ( !pointer ) |
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43 | return; |
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44 | |
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45 | _Protected_heap_Get_block_size(&RTEMS_Malloc_Heap, pointer, &actual_size); |
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46 | |
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47 | MSBUMP(lifetime_allocated, actual_size); |
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48 | |
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49 | current_depth = s->lifetime_allocated - s->lifetime_freed; |
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50 | if (current_depth > s->max_depth) |
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51 | s->max_depth = current_depth; |
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52 | } |
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53 | |
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54 | /* |
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55 | * If the pointer is not in the heap, then we won't be able to get its |
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56 | * size and thus we skip updating the statistics. |
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57 | */ |
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58 | void rtems_malloc_statistics_at_free( |
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59 | void *pointer |
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60 | ) |
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61 | { |
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62 | size_t size; |
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63 | |
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64 | if (_Protected_heap_Get_block_size(&RTEMS_Malloc_Heap, pointer, &size) ) { |
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65 | MSBUMP(lifetime_freed, size); |
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66 | } |
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67 | } |
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68 | |
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69 | rtems_malloc_statistics_functions_t rtems_malloc_statistics_helpers_table = { |
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70 | rtems_malloc_statistics_initialize, |
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71 | rtems_malloc_statistics_at_malloc, |
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72 | rtems_malloc_statistics_at_free, |
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73 | }; |
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74 | |
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75 | #endif |
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