1 | /* rtems/posix/mutex.inl |
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2 | * |
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3 | * This include file contains the static inline implementation of the private |
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4 | * inlined routines for POSIX mutex's. |
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5 | * |
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6 | * COPYRIGHT (c) 1989-1997. |
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7 | * On-Line Applications Research Corporation (OAR). |
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8 | * Copyright assigned to U.S. Government, 1994. |
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9 | * |
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10 | * The license and distribution terms for this file may in |
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11 | * the file LICENSE in this distribution or at |
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12 | * http://www.OARcorp.com/rtems/license.html. |
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13 | * |
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14 | * $Id$ |
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15 | */ |
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16 | |
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17 | #ifndef __RTEMS_POSIX_MUTEX_inl |
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18 | #define __RTEMS_POSIX_MUTEX_inl |
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19 | |
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20 | /*PAGE |
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21 | * |
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22 | * _POSIX_Mutex_Allocate |
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23 | */ |
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24 | |
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25 | RTEMS_INLINE_ROUTINE POSIX_Mutex_Control *_POSIX_Mutex_Allocate( void ) |
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26 | { |
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27 | return (POSIX_Mutex_Control *) _Objects_Allocate( &_POSIX_Mutex_Information ); |
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28 | } |
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29 | |
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30 | /*PAGE |
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31 | * |
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32 | * _POSIX_Mutex_Free |
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33 | */ |
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34 | |
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35 | RTEMS_INLINE_ROUTINE void _POSIX_Mutex_Free ( |
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36 | POSIX_Mutex_Control *the_mutex |
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37 | ) |
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38 | { |
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39 | _Objects_Free( &_POSIX_Mutex_Information, &the_mutex->Object ); |
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40 | } |
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41 | |
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42 | /*PAGE |
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43 | * |
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44 | * _POSIX_Mutex_Get |
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45 | */ |
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46 | |
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47 | RTEMS_INLINE_ROUTINE POSIX_Mutex_Control *_POSIX_Mutex_Get ( |
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48 | Objects_Id *id, |
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49 | Objects_Locations *location |
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50 | ) |
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51 | { |
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52 | int status; |
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53 | |
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54 | if ( !id ) { |
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55 | *location = OBJECTS_ERROR; |
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56 | return (POSIX_Mutex_Control *) 0; |
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57 | } |
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58 | |
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59 | if ( *id == PTHREAD_MUTEX_INITIALIZER ) { |
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60 | /* |
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61 | * Do an "auto-create" here. |
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62 | */ |
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63 | |
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64 | status = pthread_mutex_init( id, 0 ); |
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65 | if ( status ) { |
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66 | *location = OBJECTS_ERROR; |
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67 | return (POSIX_Mutex_Control *) 0; |
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68 | } |
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69 | } |
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70 | |
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71 | /* |
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72 | * Now call Objects_Get() |
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73 | */ |
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74 | |
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75 | return (POSIX_Mutex_Control *) |
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76 | _Objects_Get( &_POSIX_Mutex_Information, *id, location ); |
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77 | } |
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78 | |
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79 | /*PAGE |
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80 | * |
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81 | * _POSIX_Mutex_Is_null |
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82 | */ |
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83 | |
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84 | RTEMS_INLINE_ROUTINE boolean _POSIX_Mutex_Is_null ( |
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85 | POSIX_Mutex_Control *the_mutex |
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86 | ) |
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87 | { |
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88 | return !the_mutex; |
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89 | } |
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90 | |
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91 | #endif |
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92 | /* end of include file */ |
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93 | |
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