4.115
Last change
on this file since 02733495 was
02733495,
checked in by Sebastian Huber <sebastian.huber@…>, on 11/24/14 at 14:20:25
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libcsupport: malloc_is_system_state_OK()
Move system state check to malloc_is_system_state_OK().
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-
Property mode set to
100644
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File size:
1.3 KB
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1 | /** |
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2 | * @file |
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3 | * |
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4 | * @brief RTEMS Variation on Aligned Memory Allocation |
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5 | * @ingroup MallocSupport |
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6 | */ |
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7 | |
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8 | /* |
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9 | * COPYRIGHT (c) 1989-2008. |
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10 | * On-Line Applications Research Corporation (OAR). |
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11 | * |
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12 | * The license and distribution terms for this file may be |
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13 | * found in the file LICENSE in this distribution or at |
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14 | * http://www.rtems.org/license/LICENSE. |
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15 | */ |
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16 | |
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17 | #if HAVE_CONFIG_H |
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18 | #include "config.h" |
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19 | #endif |
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20 | |
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21 | #ifdef RTEMS_NEWLIB |
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22 | #include "malloc_p.h" |
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23 | |
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24 | #include <stdlib.h> |
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25 | #include <errno.h> |
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26 | |
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27 | int rtems_memalign( |
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28 | void **pointer, |
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29 | size_t alignment, |
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30 | size_t size |
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31 | ) |
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32 | { |
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33 | void *return_this; |
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34 | |
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35 | /* |
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36 | * Parameter error checks |
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37 | */ |
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38 | if ( !pointer ) |
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39 | return EINVAL; |
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40 | |
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41 | *pointer = NULL; |
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42 | |
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43 | /* |
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44 | * Do not attempt to allocate memory if not in correct system state. |
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45 | */ |
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46 | if ( !malloc_is_system_state_OK() ) |
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47 | return EINVAL; |
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48 | |
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49 | /* |
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50 | * If some free's have been deferred, then do them now. |
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51 | */ |
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52 | malloc_deferred_frees_process(); |
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53 | |
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54 | /* |
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55 | * Perform the aligned allocation requested |
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56 | */ |
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57 | return_this = _Protected_heap_Allocate_aligned( |
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58 | RTEMS_Malloc_Heap, |
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59 | size, |
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60 | alignment |
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61 | ); |
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62 | if ( !return_this ) |
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63 | return ENOMEM; |
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64 | |
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65 | /* |
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66 | * If configured, update the more involved statistics |
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67 | */ |
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68 | if ( rtems_malloc_statistics_helpers ) |
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69 | (*rtems_malloc_statistics_helpers->at_malloc)(pointer); |
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70 | |
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71 | *pointer = return_this; |
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72 | return 0; |
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73 | } |
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74 | #endif |
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