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 | * The following is used to determine when the multiprocessing receive |
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94 | * thread is executing so that a proxy can be allocated instead of |
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95 | * blocking the multiprocessing receive thread. |
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96 | */ |
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97 | |
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98 | EXTERN Thread_Control *_Thread_MP_Receive; |
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99 | |
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100 | /* |
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101 | * The following chains are used to manage proxies. |
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102 | */ |
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103 | |
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104 | EXTERN Chain_Control _Thread_MP_Active_proxies; |
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105 | EXTERN Chain_Control _Thread_MP_Inactive_proxies; |
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106 | |
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107 | #include <rtems/threadmp.inl> |
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108 | |
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109 | #ifdef __cplusplus |
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110 | } |
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111 | #endif |
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112 | |
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113 | #endif |
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114 | /* end of include file */ |
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