[1f0d013] | 1 | /** |
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| 2 | * @file |
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| 3 | * |
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| 4 | * @brief Inlined Routines Associated with Thread State Information |
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[ac7d5ef0] | 5 | * |
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[1f0d013] | 6 | * This file contains the static inline implementation of the inlined |
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| 7 | * routines associated with thread state information. |
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[baff4da] | 8 | */ |
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| 9 | |
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| 10 | /* |
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[b697bc6] | 11 | * COPYRIGHT (c) 1989-2012. |
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[ac7d5ef0] | 12 | * On-Line Applications Research Corporation (OAR). |
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| 13 | * |
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[98e4ebf5] | 14 | * The license and distribution terms for this file may be |
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| 15 | * found in the file LICENSE in this distribution or at |
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[c499856] | 16 | * http://www.rtems.org/license/LICENSE. |
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[ac7d5ef0] | 17 | */ |
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| 18 | |
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[fe6c170c] | 19 | #ifndef _RTEMS_SCORE_STATESIMPL_H |
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| 20 | #define _RTEMS_SCORE_STATESIMPL_H |
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[ef49476] | 21 | |
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[fe6c170c] | 22 | #include <rtems/score/states.h> |
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| 23 | #include <rtems/score/basedefs.h> |
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[ac7d5ef0] | 24 | |
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[fe6c170c] | 25 | #ifdef __cplusplus |
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| 26 | extern "C" { |
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| 27 | #endif |
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[c5e2f7c] | 28 | |
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[baff4da] | 29 | /** |
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[1f0d013] | 30 | * @addtogroup ScoreStates |
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[baff4da] | 31 | */ |
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[b697bc6] | 32 | /**@{**/ |
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[baff4da] | 33 | |
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[fe6c170c] | 34 | /* |
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| 35 | * The following constants define the individual states which may be |
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[4e07d9b3] | 36 | * be used to compose and manipulate a thread's state. More frequently used |
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| 37 | * states should use lower value bits to ease the use of immediate values on |
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| 38 | * RISC architectures. |
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[fe6c170c] | 39 | */ |
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| 40 | |
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| 41 | /** This macro corresponds to a task being ready. */ |
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[2e6d9865] | 42 | #define STATES_READY 0x00000000 |
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[4e07d9b3] | 43 | |
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| 44 | /** |
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| 45 | * @brief This macro corresponds to a task which is blocked on a thread queue |
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| 46 | * embedded in an object with an identifier. |
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| 47 | * |
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| 48 | * This thread state bit is intended to ease debugging and improve system |
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| 49 | * diagnostics, see _Thread_Wait_get_id(). |
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| 50 | */ |
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| 51 | #define STATES_THREAD_QUEUE_WITH_IDENTIFIER 0x00000001 |
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| 52 | |
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[fe6c170c] | 53 | /** This macro corresponds to a task waiting for a mutex. */ |
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[4e07d9b3] | 54 | #define STATES_WAITING_FOR_MUTEX 0x00000002 |
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| 55 | |
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| 56 | /** This macro corresponds to a task waiting for a semaphore. */ |
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| 57 | #define STATES_WAITING_FOR_SEMAPHORE 0x00000004 |
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| 58 | |
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| 59 | /** This macro corresponds to a task waiting for an event. */ |
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| 60 | #define STATES_WAITING_FOR_EVENT 0x00000008 |
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| 61 | |
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| 62 | /** This macro corresponds to a task waiting for a system event. */ |
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| 63 | #define STATES_WAITING_FOR_SYSTEM_EVENT 0x00000010 |
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| 64 | |
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| 65 | /** This macro corresponds to a task waiting for a message. */ |
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| 66 | #define STATES_WAITING_FOR_MESSAGE 0x00000020 |
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| 67 | |
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[fe6c170c] | 68 | /** This macro corresponds to a task waiting for a condition variable. */ |
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[4e07d9b3] | 69 | #define STATES_WAITING_FOR_CONDITION_VARIABLE 0x00000040 |
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| 70 | |
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| 71 | /** This macro corresponds to a task waiting for a futex. */ |
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| 72 | #define STATES_WAITING_FOR_FUTEX 0x00000080 |
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| 73 | |
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| 74 | /** This macro corresponds to a task waiting for BSD wakeup. */ |
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| 75 | #define STATES_WAITING_FOR_BSD_WAKEUP 0x00000100 |
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| 76 | |
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[d063e7b3] | 77 | /** |
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| 78 | * @brief This macro corresponds to a task which is waiting for a relative or |
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| 79 | * absolute timeout. |
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| 80 | */ |
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| 81 | #define STATES_WAITING_FOR_TIME 0x00000200 |
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[4e07d9b3] | 82 | |
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[fe6c170c] | 83 | /** This macro corresponds to a task waiting for a period. */ |
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[4e07d9b3] | 84 | #define STATES_WAITING_FOR_PERIOD 0x00000400 |
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| 85 | |
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[fe6c170c] | 86 | /** This macro corresponds to a task waiting for a signal. */ |
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[4e07d9b3] | 87 | #define STATES_WAITING_FOR_SIGNAL 0x00000800 |
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| 88 | |
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[fe6c170c] | 89 | /** This macro corresponds to a task waiting for a barrier. */ |
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[4e07d9b3] | 90 | #define STATES_WAITING_FOR_BARRIER 0x00001000 |
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| 91 | |
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[fe6c170c] | 92 | /** This macro corresponds to a task waiting for a RWLock. */ |
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[4e07d9b3] | 93 | #define STATES_WAITING_FOR_RWLOCK 0x00002000 |
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| 94 | |
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| 95 | /** This macro corresponds to a task waiting for a join while exiting. */ |
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| 96 | #define STATES_WAITING_FOR_JOIN_AT_EXIT 0x00004000 |
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| 97 | |
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[f329353] | 98 | /** This macro corresponds to a task waiting for a join. */ |
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[4e07d9b3] | 99 | #define STATES_WAITING_FOR_JOIN 0x00008000 |
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| 100 | |
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| 101 | /** This macro corresponds to a task being suspended. */ |
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| 102 | #define STATES_SUSPENDED 0x00010000 |
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| 103 | |
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| 104 | /** This macro corresponds to a task waiting for a fixed size segment. */ |
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| 105 | #define STATES_WAITING_FOR_SEGMENT 0x00020000 |
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| 106 | |
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| 107 | /** This macro corresponds to a task those life is changing. */ |
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| 108 | #define STATES_LIFE_IS_CHANGING 0x00040000 |
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| 109 | |
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| 110 | /** This macro corresponds to a task being held by the debugger. */ |
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| 111 | #define STATES_DEBUGGER 0x08000000 |
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[fe6c170c] | 112 | |
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| 113 | /** This macro corresponds to a task which is in an interruptible |
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| 114 | * blocking state. |
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| 115 | */ |
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| 116 | #define STATES_INTERRUPTIBLE_BY_SIGNAL 0x10000000 |
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[9a448aab] | 117 | |
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[4e07d9b3] | 118 | /** This macro corresponds to a task waiting for a reply to an MPCI request. */ |
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| 119 | #define STATES_WAITING_FOR_RPC_REPLY 0x20000000 |
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| 120 | |
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| 121 | /** This macro corresponds to a task being a zombie. */ |
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| 122 | #define STATES_ZOMBIE 0x40000000 |
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| 123 | |
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| 124 | /** This macro corresponds to a task being created but not yet started. */ |
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| 125 | #define STATES_DORMANT 0x80000000 |
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[fe6c170c] | 126 | |
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| 127 | /** This macro corresponds to a task waiting for a local object operation. */ |
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[9a448aab] | 128 | #define STATES_LOCALLY_BLOCKED ( STATES_THREAD_QUEUE_WITH_IDENTIFIER | \ |
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| 129 | STATES_WAITING_FOR_SEGMENT | \ |
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[fe6c170c] | 130 | STATES_WAITING_FOR_MESSAGE | \ |
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| 131 | STATES_WAITING_FOR_SEMAPHORE | \ |
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| 132 | STATES_WAITING_FOR_MUTEX | \ |
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| 133 | STATES_WAITING_FOR_CONDITION_VARIABLE | \ |
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[f329353] | 134 | STATES_WAITING_FOR_JOIN | \ |
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[fe6c170c] | 135 | STATES_WAITING_FOR_SIGNAL | \ |
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| 136 | STATES_WAITING_FOR_BARRIER | \ |
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[b68cef17] | 137 | STATES_WAITING_FOR_BSD_WAKEUP | \ |
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[9a448aab] | 138 | STATES_WAITING_FOR_FUTEX | \ |
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[fe6c170c] | 139 | STATES_WAITING_FOR_RWLOCK ) |
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| 140 | |
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| 141 | /** This macro corresponds to a task waiting which is blocked. */ |
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[d063e7b3] | 142 | #define STATES_BLOCKED ( STATES_LOCALLY_BLOCKED | \ |
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[fe6c170c] | 143 | STATES_WAITING_FOR_TIME | \ |
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| 144 | STATES_WAITING_FOR_PERIOD | \ |
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| 145 | STATES_WAITING_FOR_EVENT | \ |
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[56729d8] | 146 | STATES_WAITING_FOR_RPC_REPLY | \ |
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[fe6c170c] | 147 | STATES_WAITING_FOR_SYSTEM_EVENT | \ |
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| 148 | STATES_INTERRUPTIBLE_BY_SIGNAL ) |
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| 149 | |
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[33829ce] | 150 | /** All state bits set to one (provided for _Thread_Start()) */ |
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[1461aba8] | 151 | #define STATES_ALL_SET 0xffffffff |
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| 152 | |
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[baff4da] | 153 | /** |
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[1f0d013] | 154 | * This function sets the given states_to_set into the current_state |
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| 155 | * passed in. The result is returned to the user in current_state. |
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[cdea617] | 156 | * |
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[1f0d013] | 157 | * @param[in] states_to_set is the state bits to set |
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| 158 | * @param[in] current_state is the state set to add them to |
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[cdea617] | 159 | * |
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[1f0d013] | 160 | * @return This method returns the updated states value. |
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[ac7d5ef0] | 161 | */ |
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[503dc058] | 162 | RTEMS_INLINE_ROUTINE States_Control _States_Set ( |
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[ac7d5ef0] | 163 | States_Control states_to_set, |
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| 164 | States_Control current_state |
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| 165 | ) |
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| 166 | { |
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| 167 | return (current_state | states_to_set); |
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| 168 | } |
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| 169 | |
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[baff4da] | 170 | /** |
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[1f0d013] | 171 | * This function clears the given states_to_clear into the current_state |
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| 172 | * passed in. The result is returned to the user in current_state. |
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[cdea617] | 173 | * |
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[e858f70] | 174 | * @param[in] states_to_clear is the state bits to clean |
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[1f0d013] | 175 | * @param[in] current_state is the state set to remove them from |
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[cdea617] | 176 | * |
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[1f0d013] | 177 | * @return This method returns the updated states value. |
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[ac7d5ef0] | 178 | */ |
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[503dc058] | 179 | RTEMS_INLINE_ROUTINE States_Control _States_Clear ( |
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[ac7d5ef0] | 180 | States_Control states_to_clear, |
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| 181 | States_Control current_state |
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| 182 | ) |
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| 183 | { |
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| 184 | return (current_state & ~states_to_clear); |
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| 185 | } |
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| 186 | |
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[baff4da] | 187 | /** |
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[1f0d013] | 188 | * This function returns true if the_states indicates that the |
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| 189 | * state is READY, and false otherwise. |
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[cdea617] | 190 | * |
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[1f0d013] | 191 | * @param[in] the_states is the task state set to test |
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[cdea617] | 192 | * |
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[1f0d013] | 193 | * @return This method returns true if the desired state condition is set. |
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[ac7d5ef0] | 194 | */ |
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[484a769] | 195 | RTEMS_INLINE_ROUTINE bool _States_Is_ready ( |
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[ac7d5ef0] | 196 | States_Control the_states |
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| 197 | ) |
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| 198 | { |
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| 199 | return (the_states == STATES_READY); |
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| 200 | } |
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| 201 | |
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[baff4da] | 202 | /** |
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[1f0d013] | 203 | * This function returns true if the DORMANT state is the ONLY state |
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| 204 | * set in the_states, and false otherwise. |
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[cdea617] | 205 | * |
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[1f0d013] | 206 | * @param[in] the_states is the task state set to test |
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[cdea617] | 207 | * |
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[1f0d013] | 208 | * @return This method returns true if the desired state condition is set. |
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[ac7d5ef0] | 209 | */ |
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[484a769] | 210 | RTEMS_INLINE_ROUTINE bool _States_Is_only_dormant ( |
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[ac7d5ef0] | 211 | States_Control the_states |
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| 212 | ) |
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| 213 | { |
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| 214 | return (the_states == STATES_DORMANT); |
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| 215 | } |
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| 216 | |
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[baff4da] | 217 | /** |
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[1f0d013] | 218 | * This function returns true if the DORMANT state is set in |
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| 219 | * the_states, and false otherwise. |
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[cdea617] | 220 | * |
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[1f0d013] | 221 | * @param[in] the_states is the task state set to test |
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[cdea617] | 222 | * |
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[1f0d013] | 223 | * @return This method returns true if the desired state condition is set. |
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[ac7d5ef0] | 224 | */ |
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[484a769] | 225 | RTEMS_INLINE_ROUTINE bool _States_Is_dormant ( |
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[ac7d5ef0] | 226 | States_Control the_states |
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| 227 | ) |
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| 228 | { |
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| 229 | return (the_states & STATES_DORMANT); |
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| 230 | } |
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| 231 | |
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[baff4da] | 232 | /** |
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[1f0d013] | 233 | * This function returns true if the SUSPENDED state is set in |
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| 234 | * the_states, and false otherwise. |
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[cdea617] | 235 | * |
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[1f0d013] | 236 | * @param[in] the_states is the task state set to test |
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[cdea617] | 237 | * |
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[1f0d013] | 238 | * @return This method returns true if the desired state condition is set. |
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[ac7d5ef0] | 239 | */ |
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[484a769] | 240 | RTEMS_INLINE_ROUTINE bool _States_Is_suspended ( |
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[ac7d5ef0] | 241 | States_Control the_states |
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| 242 | ) |
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| 243 | { |
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| 244 | return (the_states & STATES_SUSPENDED); |
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| 245 | } |
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| 246 | |
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[baff4da] | 247 | /** |
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[1f0d013] | 248 | * This function returns true if the WAITING_FOR_SEGMENT state is set in |
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| 249 | * the_states, and false otherwise. |
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[cdea617] | 250 | * |
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[1f0d013] | 251 | * @param[in] the_states is the task state set to test |
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[cdea617] | 252 | * |
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[1f0d013] | 253 | * @return This method returns true if the desired state condition is set. |
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[ac7d5ef0] | 254 | */ |
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[484a769] | 255 | RTEMS_INLINE_ROUTINE bool _States_Is_waiting_for_segment ( |
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[ac7d5ef0] | 256 | States_Control the_states |
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| 257 | ) |
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| 258 | { |
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| 259 | return (the_states & STATES_WAITING_FOR_SEGMENT); |
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| 260 | } |
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| 261 | |
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[baff4da] | 262 | /** |
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[1f0d013] | 263 | * This function returns true if the WAITING_FOR_MESSAGE state is set in |
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| 264 | * the_states, and false otherwise. |
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[cdea617] | 265 | * |
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[1f0d013] | 266 | * @param[in] the_states is the task state set to test |
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[cdea617] | 267 | * |
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[1f0d013] | 268 | * @return This method returns true if the desired state condition is set. |
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[ac7d5ef0] | 269 | */ |
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[484a769] | 270 | RTEMS_INLINE_ROUTINE bool _States_Is_waiting_for_message ( |
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[ac7d5ef0] | 271 | States_Control the_states |
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| 272 | ) |
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| 273 | { |
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| 274 | return (the_states & STATES_WAITING_FOR_MESSAGE); |
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| 275 | } |
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| 276 | |
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[baff4da] | 277 | /** |
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[1f0d013] | 278 | * This function returns true if the WAITING_FOR_EVENT state is set in |
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| 279 | * the_states, and false otherwise. |
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[cdea617] | 280 | * |
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[1f0d013] | 281 | * @param[in] the_states is the task state set to test |
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[cdea617] | 282 | * |
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[1f0d013] | 283 | * @return This method returns true if the desired state condition is set. |
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[ac7d5ef0] | 284 | */ |
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[484a769] | 285 | RTEMS_INLINE_ROUTINE bool _States_Is_waiting_for_event ( |
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[ac7d5ef0] | 286 | States_Control the_states |
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| 287 | ) |
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| 288 | { |
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| 289 | return (the_states & STATES_WAITING_FOR_EVENT); |
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| 290 | } |
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| 291 | |
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[0edf263] | 292 | /** |
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[1f0d013] | 293 | * This function returns true if the WAITING_FOR_SYSTEM_EVENT state is set in |
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| 294 | * the_states, and false otherwise. |
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[0edf263] | 295 | * |
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[1f0d013] | 296 | * @param[in] the_states is the task state set to test |
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[0edf263] | 297 | * |
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[1f0d013] | 298 | * @return This method returns true if the desired state condition is set. |
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[0edf263] | 299 | */ |
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| 300 | RTEMS_INLINE_ROUTINE bool _States_Is_waiting_for_system_event ( |
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| 301 | States_Control the_states |
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| 302 | ) |
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| 303 | { |
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| 304 | return (the_states & STATES_WAITING_FOR_SYSTEM_EVENT); |
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| 305 | } |
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| 306 | |
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[baff4da] | 307 | /** |
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[1f0d013] | 308 | * This function returns true if the WAITING_FOR_MUTEX state |
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| 309 | * is set in the_states, and false otherwise. |
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[cdea617] | 310 | * |
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[1f0d013] | 311 | * @param[in] the_states is the task state set to test |
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[cdea617] | 312 | * |
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[1f0d013] | 313 | * @return This method returns true if the desired state condition is set. |
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[3a4ae6c] | 314 | */ |
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[484a769] | 315 | RTEMS_INLINE_ROUTINE bool _States_Is_waiting_for_mutex ( |
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[3a4ae6c] | 316 | States_Control the_states |
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| 317 | ) |
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| 318 | { |
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| 319 | return (the_states & STATES_WAITING_FOR_MUTEX); |
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| 320 | } |
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| 321 | |
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[baff4da] | 322 | /** |
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[1f0d013] | 323 | * This function returns true if the WAITING_FOR_SEMAPHORE state |
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| 324 | * is set in the_states, and false otherwise. |
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[cdea617] | 325 | * |
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[1f0d013] | 326 | * @param[in] the_states is the task state set to test |
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[cdea617] | 327 | * |
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[1f0d013] | 328 | * @return This method returns true if the desired state condition is set. |
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[ac7d5ef0] | 329 | */ |
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[484a769] | 330 | RTEMS_INLINE_ROUTINE bool _States_Is_waiting_for_semaphore ( |
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[ac7d5ef0] | 331 | States_Control the_states |
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| 332 | ) |
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| 333 | { |
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| 334 | return (the_states & STATES_WAITING_FOR_SEMAPHORE); |
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| 335 | } |
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| 336 | |
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[baff4da] | 337 | /** |
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[1f0d013] | 338 | * This function returns true if the WAITING_FOR_TIME state is set in |
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| 339 | * the_states, and false otherwise. |
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[cdea617] | 340 | * |
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[1f0d013] | 341 | * @param[in] the_states is the task state set to test |
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[cdea617] | 342 | * |
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[1f0d013] | 343 | * @return This method returns true if the desired state condition is set. |
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[ac7d5ef0] | 344 | */ |
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[484a769] | 345 | RTEMS_INLINE_ROUTINE bool _States_Is_waiting_for_rpc_reply ( |
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[ac7d5ef0] | 346 | States_Control the_states |
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| 347 | ) |
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| 348 | { |
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| 349 | return (the_states & STATES_WAITING_FOR_RPC_REPLY); |
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| 350 | } |
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| 351 | |
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[baff4da] | 352 | /** |
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[1f0d013] | 353 | * This function returns true if the WAITING_FOR_PERIOD state is set in |
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| 354 | * the_states, and false otherwise. |
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[cdea617] | 355 | * |
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[1f0d013] | 356 | * @param[in] the_states is the task state set to test |
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[cdea617] | 357 | * |
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[1f0d013] | 358 | * @return This method returns true if the desired state condition is set. |
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[ac7d5ef0] | 359 | */ |
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[484a769] | 360 | RTEMS_INLINE_ROUTINE bool _States_Is_waiting_for_period ( |
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[ac7d5ef0] | 361 | States_Control the_states |
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| 362 | ) |
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| 363 | { |
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| 364 | return (the_states & STATES_WAITING_FOR_PERIOD); |
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| 365 | } |
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| 366 | |
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[54550e04] | 367 | RTEMS_INLINE_ROUTINE bool _States_Is_waiting_for_join_at_exit( |
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| 368 | States_Control the_states |
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| 369 | ) |
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| 370 | { |
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| 371 | return ( the_states & STATES_WAITING_FOR_JOIN_AT_EXIT ) != 0; |
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| 372 | } |
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| 373 | |
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[cdea617] | 374 | /** |
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[1f0d013] | 375 | * This function returns true if the task's state is set in |
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| 376 | * way that allows it to be interrupted by a signal. |
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[cdea617] | 377 | * |
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[1f0d013] | 378 | * @param[in] the_states is the task state set to test |
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[cdea617] | 379 | * |
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[1f0d013] | 380 | * @return This method returns true if the desired state condition is set. |
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[cdea617] | 381 | */ |
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| 382 | RTEMS_INLINE_ROUTINE bool _States_Is_interruptible_by_signal ( |
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| 383 | States_Control the_states |
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| 384 | ) |
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| 385 | { |
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| 386 | return (the_states & STATES_INTERRUPTIBLE_BY_SIGNAL); |
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| 387 | |
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| 388 | } |
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[baff4da] | 389 | /** |
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[1f0d013] | 390 | * This function returns true if one of the states which indicates |
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| 391 | * that a task is blocked waiting for a local resource is set in |
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| 392 | * the_states, and false otherwise. |
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[cdea617] | 393 | * |
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[1f0d013] | 394 | * @param[in] the_states is the task state set to test |
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[cdea617] | 395 | * |
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[1f0d013] | 396 | * @return This method returns true if the desired state condition is set. |
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[ac7d5ef0] | 397 | */ |
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| 398 | |
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[484a769] | 399 | RTEMS_INLINE_ROUTINE bool _States_Is_locally_blocked ( |
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[ac7d5ef0] | 400 | States_Control the_states |
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| 401 | ) |
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| 402 | { |
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| 403 | return (the_states & STATES_LOCALLY_BLOCKED); |
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| 404 | } |
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| 405 | |
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[baff4da] | 406 | /** |
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[1f0d013] | 407 | * This function returns true if one of the states which indicates |
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| 408 | * that a task is blocked is set in the_states, and false otherwise. |
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[cdea617] | 409 | * |
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[1f0d013] | 410 | * @param[in] the_states is the task state set to test |
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[cdea617] | 411 | * |
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[1f0d013] | 412 | * @return This method returns true if the state indicates that the |
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| 413 | * assocated thread is blocked. |
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[ac7d5ef0] | 414 | */ |
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[484a769] | 415 | RTEMS_INLINE_ROUTINE bool _States_Is_blocked ( |
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[ac7d5ef0] | 416 | States_Control the_states |
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| 417 | ) |
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| 418 | { |
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| 419 | return (the_states & STATES_BLOCKED); |
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| 420 | } |
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| 421 | |
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[baff4da] | 422 | /** |
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[1f0d013] | 423 | * This function returns true if any of the states in the mask |
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| 424 | * are set in the_states, and false otherwise. |
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[cdea617] | 425 | * |
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[1f0d013] | 426 | * @param[in] the_states is the task state set to test |
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| 427 | * @param[in] mask is the state bits to test for |
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[cdea617] | 428 | * |
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[1f0d013] | 429 | * @return This method returns true if the indicates state condition is set. |
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[ac7d5ef0] | 430 | */ |
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[484a769] | 431 | RTEMS_INLINE_ROUTINE bool _States_Are_set ( |
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[ac7d5ef0] | 432 | States_Control the_states, |
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| 433 | States_Control mask |
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| 434 | ) |
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| 435 | { |
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| 436 | return ( (the_states & mask) != STATES_READY); |
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| 437 | } |
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| 438 | |
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[1f0d013] | 439 | /** @} */ |
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[baff4da] | 440 | |
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[fe6c170c] | 441 | #ifdef __cplusplus |
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| 442 | } |
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| 443 | #endif |
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| 444 | |
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[ac7d5ef0] | 445 | #endif |
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| 446 | /* end of include file */ |
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