[ac7d5ef0] | 1 | /* threadmp.h |
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| 2 | * |
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| 3 | * This include file contains the specification for all routines |
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| 4 | * and data specific to the multiprocessing portion of the thread package. |
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| 5 | * |
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| 6 | * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. |
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| 7 | * On-Line Applications Research Corporation (OAR). |
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| 8 | * All rights assigned to U.S. Government, 1994. |
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| 9 | * |
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| 10 | * This material may be reproduced by or for the U.S. Government pursuant |
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| 11 | * to the copyright license under the clause at DFARS 252.227-7013. This |
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| 12 | * notice must appear in all copies of this file and its derivatives. |
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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_THREAD_MP_h |
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| 18 | #define __RTEMS_THREAD_MP_h |
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| 19 | |
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| 20 | #ifdef __cplusplus |
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| 21 | extern "C" { |
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| 22 | #endif |
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| 23 | |
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| 24 | /* |
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| 25 | * _Thread_MP_Handler_initialization |
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| 26 | * |
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| 27 | * DESCRIPTION: |
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| 28 | * |
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| 29 | * This package is the specification for the Thread Handler's |
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| 30 | * multiprocessing specific support routines. |
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| 31 | */ |
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| 32 | |
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| 33 | void _Thread_MP_Handler_initialization ( |
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| 34 | unsigned32 maximum_proxies |
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| 35 | ); |
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| 36 | |
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| 37 | /* |
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| 38 | * _Thread_MP_Is_receive |
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| 39 | * |
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| 40 | * DESCRIPTION: |
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| 41 | * |
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| 42 | * This function returns true if the thread in question is the |
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| 43 | * multiprocessing receive thread. |
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| 44 | */ |
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| 45 | |
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| 46 | STATIC INLINE boolean _Thread_MP_Is_receive ( |
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| 47 | Thread_Control *the_thread |
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| 48 | ); |
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| 49 | |
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| 50 | /* |
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| 51 | * _Thread_MP_Allocate_proxy |
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| 52 | * |
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| 53 | * DESCRIPTION: |
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| 54 | * |
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| 55 | * This allocates a proxy control block from |
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| 56 | * the inactive chain of free proxy control blocks. |
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| 57 | * |
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| 58 | * NOTE: This function returns a thread control pointer |
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| 59 | * because proxies are substitutes for remote threads. |
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| 60 | */ |
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| 61 | |
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| 62 | Thread_Control *_Thread_MP_Allocate_proxy ( |
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| 63 | States_Control the_state |
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| 64 | ); |
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| 65 | |
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| 66 | /* |
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| 67 | * _Thread_MP_Free_proxy |
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| 68 | * |
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| 69 | * DESCRIPTION: |
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| 70 | * |
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| 71 | * This routine frees a proxy control block to the |
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| 72 | * inactive chain of free proxy control blocks. |
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| 73 | */ |
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| 74 | |
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| 75 | STATIC INLINE void _Thread_MP_Free_proxy ( |
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| 76 | Thread_Control *the_thread |
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| 77 | ); |
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| 78 | |
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| 79 | /* |
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| 80 | * _Thread_MP_Find_proxy |
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| 81 | * |
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| 82 | * DESCRIPTION: |
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| 83 | * |
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| 84 | * This function removes the proxy control block for the specified |
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| 85 | * id from the active chain of proxy control blocks. |
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| 86 | */ |
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| 87 | |
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| 88 | Thread_Control *_Thread_MP_Find_proxy ( |
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| 89 | Objects_Id the_id |
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| 90 | ); |
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| 91 | |
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| 92 | /* |
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| 93 | * _Thread_MP_Block |
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| 94 | * |
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| 95 | * DESCRIPTION: |
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| 96 | * |
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| 97 | * This routine blocks the MP Receive server thread. |
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| 98 | */ |
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| 99 | |
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| 100 | void _Thread_MP_Block( void ); |
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| 101 | |
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| 102 | /* |
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| 103 | * _Thread_MP_Ready |
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| 104 | * |
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| 105 | * DESCRIPTION: |
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| 106 | * |
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| 107 | * This routine readies the MP Receive server thread. |
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| 108 | */ |
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| 109 | |
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| 110 | void _Thread_MP_Ready( void ); |
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| 111 | |
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| 112 | /* |
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| 113 | * The following is used to determine when the multiprocessing receive |
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| 114 | * thread is executing so that a proxy can be allocated instead of |
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| 115 | * blocking the multiprocessing receive thread. |
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| 116 | */ |
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| 117 | |
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| 118 | EXTERN Thread_Control *_Thread_MP_Receive; |
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| 119 | |
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| 120 | /* |
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| 121 | * The following chains are used to manage proxies. |
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| 122 | */ |
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| 123 | |
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| 124 | EXTERN Chain_Control _Thread_MP_Active_proxies; |
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| 125 | EXTERN Chain_Control _Thread_MP_Inactive_proxies; |
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| 126 | |
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| 127 | #include <rtems/threadmp.inl> |
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| 128 | |
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| 129 | #ifdef __cplusplus |
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| 130 | } |
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| 131 | #endif |
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| 132 | |
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| 133 | #endif |
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| 134 | /* end of include file */ |
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