1 | /** |
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2 | * @file |
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3 | * |
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4 | * @brief POSIX Key Private Support |
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5 | * |
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6 | * This include file contains all the private support information for |
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7 | * POSIX key. |
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8 | */ |
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9 | |
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10 | /* |
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11 | * Copyright (c) 2012 Zhongwei Yao. |
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12 | * COPYRIGHT (c) 1989-2011. |
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13 | * On-Line Applications Research Corporation (OAR). |
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14 | * Copyright (c) 2016 embedded brains GmbH. |
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15 | * |
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16 | * The license and distribution terms for this file may be |
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17 | * found in the file LICENSE in this distribution or at |
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18 | * http://www.rtems.org/license/LICENSE. |
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19 | */ |
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20 | |
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21 | #ifndef _RTEMS_POSIX_KEY_H |
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22 | #define _RTEMS_POSIX_KEY_H |
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23 | |
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24 | #include <pthread.h> |
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25 | |
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26 | #include <rtems/score/chain.h> |
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27 | #include <rtems/score/object.h> |
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28 | #include <rtems/score/rbtree.h> |
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29 | #include <rtems/score/thread.h> |
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30 | |
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31 | #ifdef __cplusplus |
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32 | extern "C" { |
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33 | #endif |
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34 | |
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35 | /** |
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36 | * @defgroup POSIX_KEY POSIX Key |
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37 | * |
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38 | * @ingroup POSIXAPI |
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39 | * |
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40 | */ |
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41 | /**@{**/ |
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42 | |
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43 | /** |
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44 | * @brief Represents POSIX key and value pair. |
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45 | */ |
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46 | typedef struct { |
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47 | /** |
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48 | * @brief The chain node for the key value pairs chain in POSIX_Keys_Control. |
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49 | */ |
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50 | Chain_Node Key_node; |
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51 | |
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52 | /** |
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53 | * @brief The tree node for the lookup tree in Thread_Keys_information. |
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54 | */ |
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55 | RBTree_Node Lookup_node; |
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56 | |
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57 | /** |
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58 | * @brief The POSIX key identifier used as the tree key. |
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59 | */ |
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60 | pthread_key_t key; |
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61 | |
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62 | /** |
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63 | * @brief The corresponding thread. |
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64 | */ |
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65 | Thread_Control *thread; |
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66 | |
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67 | /** |
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68 | * @brief The thread specific POSIX key value. |
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69 | */ |
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70 | void *value; |
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71 | } POSIX_Keys_Key_value_pair; |
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72 | |
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73 | /** |
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74 | * @brief The data structure used to manage a POSIX key. |
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75 | */ |
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76 | typedef struct { |
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77 | /** This field is the Object control structure. */ |
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78 | Objects_Control Object; |
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79 | /** This field is the data destructor. */ |
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80 | void (*destructor) (void *); |
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81 | |
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82 | /** |
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83 | * @brief Key value pairs of this key. |
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84 | */ |
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85 | Chain_Control Key_value_pairs; |
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86 | } POSIX_Keys_Control; |
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87 | |
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88 | /** @} */ |
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89 | |
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90 | #ifdef __cplusplus |
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91 | } |
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92 | #endif |
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93 | |
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94 | #endif |
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95 | /* end of include file */ |
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