1 | /** |
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2 | * @file rtems/posix/rwlock.h |
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3 | */ |
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4 | |
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5 | /* |
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6 | * This include file contains all the constants and structures associated |
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7 | * with the POSIX RWLock Manager. |
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8 | * |
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9 | * Directives provided are: |
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10 | * |
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11 | * + create a RWLock |
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12 | * + delete a RWLock |
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13 | * + wait for a RWLock |
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14 | * |
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15 | * COPYRIGHT (c) 1989-2008. |
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16 | * On-Line Applications Research Corporation (OAR). |
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17 | * |
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18 | * The license and distribution terms for this file may be |
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19 | * found in the file LICENSE in this distribution or at |
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20 | * http://www.rtems.com/license/LICENSE. |
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21 | * |
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22 | * $Id$ |
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23 | */ |
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24 | |
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25 | #ifndef _RTEMS_POSIX_RWLOCK_H |
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26 | #define _RTEMS_POSIX_RWLOCK_H |
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27 | |
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28 | #ifdef __cplusplus |
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29 | extern "C" { |
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30 | #endif |
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31 | |
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32 | #include <rtems/score/object.h> |
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33 | #include <rtems/score/corerwlock.h> |
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34 | |
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35 | /** |
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36 | * This type defines the control block used to manage each RWLock. |
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37 | */ |
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38 | |
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39 | typedef struct { |
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40 | /** This is used to manage a RWLock as an object. */ |
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41 | Objects_Control Object; |
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42 | /** This is used to implement the RWLock. */ |
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43 | CORE_RWLock_Control RWLock; |
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44 | } POSIX_RWLock_Control; |
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45 | |
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46 | /** |
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47 | * The following defines the information control block used to manage |
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48 | * this class of objects. |
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49 | */ |
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50 | |
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51 | POSIX_EXTERN Objects_Information _POSIX_RWLock_Information; |
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52 | |
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53 | /** |
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54 | * @brief _POSIX_RWLock_Manager_initialization |
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55 | * |
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56 | * This routine performs the initialization necessary for this manager. |
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57 | * |
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58 | * @param[in] maximum_rwlocks is the total number of RWLocks allowed to |
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59 | * concurrently be active in the system. |
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60 | */ |
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61 | |
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62 | void _POSIX_RWLock_Manager_initialization(void); |
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63 | |
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64 | /** |
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65 | * @brief _POSIX_RWLock_Translate_core_RWLock_return_code ( |
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66 | * |
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67 | * This routine translates SuperCore RWLock status codes into the |
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68 | * corresponding POSIX ones. |
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69 | * |
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70 | * |
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71 | * @param[in] the_RWLock_status is the SuperCore status. |
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72 | * |
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73 | * @return the corresponding POSIX status |
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74 | */ |
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75 | int _POSIX_RWLock_Translate_core_RWLock_return_code( |
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76 | CORE_RWLock_Status the_RWLock_status |
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77 | ); |
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78 | |
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79 | #ifndef __RTEMS_APPLICATION__ |
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80 | #include <rtems/posix/rwlock.inl> |
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81 | #endif |
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82 | |
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83 | #ifdef __cplusplus |
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84 | } |
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85 | #endif |
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86 | |
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87 | #endif |
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88 | /* end of include file */ |
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