1 | /* extension.inl |
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2 | * |
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3 | * This file contains the static inline implementation of the inlined routines |
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4 | * from the Extension Manager. |
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5 | * |
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6 | * COPYRIGHT (c) 1989-1999. |
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7 | * On-Line Applications Research Corporation (OAR). |
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8 | * |
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9 | * The license and distribution terms for this file may be |
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10 | * found in the file LICENSE in this distribution or at |
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11 | * http://www.rtems.com/license/LICENSE. |
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12 | * |
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13 | * $Id$ |
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14 | */ |
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15 | |
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16 | #ifndef __EXTENSION_MANAGER_inl |
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17 | #define __EXTENSION_MANAGER_inl |
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18 | |
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19 | /*PAGE |
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20 | * |
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21 | * _Extension_Allocate |
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22 | * |
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23 | * DESCRIPTION: |
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24 | * |
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25 | * This function allocates a extension control block from |
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26 | * the inactive chain of free extension control blocks. |
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27 | */ |
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28 | |
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29 | RTEMS_INLINE_ROUTINE Extension_Control *_Extension_Allocate( void ) |
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30 | { |
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31 | return (Extension_Control *) _Objects_Allocate( &_Extension_Information ); |
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32 | } |
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33 | |
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34 | /*PAGE |
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35 | * |
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36 | * _Extension_Free |
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37 | * |
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38 | * DESCRIPTION: |
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39 | * |
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40 | * This routine frees a extension control block to the |
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41 | * inactive chain of free extension control blocks. |
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42 | */ |
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43 | |
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44 | RTEMS_INLINE_ROUTINE void _Extension_Free ( |
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45 | Extension_Control *the_extension |
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46 | ) |
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47 | { |
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48 | _Objects_Free( &_Extension_Information, &the_extension->Object ); |
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49 | } |
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50 | |
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51 | /*PAGE |
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52 | * |
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53 | * _Extension_Get |
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54 | * |
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55 | * DESCRIPTION: |
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56 | * |
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57 | * This function maps extension IDs to extension control blocks. |
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58 | * If ID corresponds to a local extension, then it returns |
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59 | * the extension control pointer which maps to ID and location |
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60 | * is set to OBJECTS_LOCAL. Otherwise, location is set |
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61 | * to OBJECTS_ERROR and the returned value is undefined. |
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62 | */ |
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63 | |
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64 | RTEMS_INLINE_ROUTINE Extension_Control *_Extension_Get ( |
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65 | Objects_Id id, |
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66 | Objects_Locations *location |
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67 | ) |
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68 | { |
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69 | return (Extension_Control *) |
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70 | _Objects_Get( &_Extension_Information, id, location ); |
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71 | } |
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72 | |
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73 | /*PAGE |
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74 | * |
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75 | * _Extension_Is_null |
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76 | * |
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77 | * DESCRIPTION: |
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78 | * |
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79 | * This function returns TRUE if the_extension is NULL and FALSE otherwise. |
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80 | */ |
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81 | |
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82 | RTEMS_INLINE_ROUTINE boolean _Extension_Is_null ( |
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83 | Extension_Control *the_extension |
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84 | ) |
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85 | { |
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86 | return ( the_extension == NULL ); |
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87 | } |
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88 | |
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89 | #endif |
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90 | /* end of include file */ |
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