1 | /* |
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2 | * Multiprocessing Manager |
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3 | * |
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4 | * |
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5 | * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. |
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6 | * On-Line Applications Research Corporation (OAR). |
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7 | * All rights assigned to U.S. Government, 1994. |
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8 | * |
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9 | * This material may be reproduced by or for the U.S. Government pursuant |
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10 | * to the copyright license under the clause at DFARS 252.227-7013. This |
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11 | * notice must appear in all copies of this file and its derivatives. |
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12 | * |
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13 | * $Id$ |
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14 | */ |
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15 | |
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16 | #include <rtems/system.h> |
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17 | #include <rtems/config.h> |
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18 | #include <rtems/cpu.h> |
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19 | #include <rtems/event.h> |
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20 | #include <rtems/fatal.h> |
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21 | #include <rtems/intthrd.h> |
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22 | #include <rtems/message.h> |
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23 | #include <rtems/mp.h> |
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24 | #include <rtems/mpci.h> |
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25 | #include <rtems/mppkt.h> |
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26 | #include <rtems/part.h> |
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27 | #include <rtems/sem.h> |
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28 | #include <rtems/signal.h> |
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29 | #include <rtems/states.h> |
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30 | #include <rtems/tasks.h> |
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31 | #include <rtems/thread.h> |
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32 | #include <rtems/threadq.h> |
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33 | #include <rtems/watchdog.h> |
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34 | |
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35 | /*PAGE |
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36 | * |
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37 | * _Multiprocessing_Manager_initialization |
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38 | * |
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39 | */ |
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40 | |
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41 | void _Multiprocessing_Manager_initialization ( void ) |
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42 | { |
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43 | if ( _Configuration_MP_table->node < 1 || |
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44 | _Configuration_MP_table->node > _Configuration_MP_table->maximum_nodes ) |
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45 | rtems_fatal_error_occurred( RTEMS_INVALID_NODE ); |
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46 | |
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47 | _Internal_threads_Set_MP_receive_server( _Multiprocessing_Receive_server ); |
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48 | } |
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49 | |
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50 | /*PAGE |
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51 | * |
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52 | * rtems_multiprocessing_announce |
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53 | * |
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54 | */ |
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55 | |
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56 | void rtems_multiprocessing_announce ( void ) |
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57 | { |
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58 | _Thread_Disable_dispatch(); |
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59 | _Event_sets_Post( |
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60 | RTEMS_EVENT_0, |
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61 | &_Internal_threads_System_initialization_thread->pending_events |
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62 | ); |
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63 | _Event_Surrender( _Internal_threads_System_initialization_thread ); |
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64 | _Thread_Enable_dispatch(); |
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65 | } |
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66 | |
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67 | /*PAGE |
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68 | * |
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69 | * _Multiprocessing_Receive_server |
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70 | * |
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71 | */ |
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72 | |
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73 | typedef void (*packet_processor)( rtems_packet_prefix * ); |
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74 | |
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75 | packet_processor _Multiprocessor_Packet_processors[] = { |
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76 | _Internal_threads_MP_Process_packet, /* RTEMS_MP_PACKET_INTERNAL_THREADS */ |
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77 | _RTEMS_tasks_MP_Process_packet, /* RTEMS_MP_PACKET_TASKS */ |
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78 | _Message_queue_MP_Process_packet, /* RTEMS_MP_PACKET_MESSAGE_QUEUE */ |
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79 | _Semaphore_MP_Process_packet, /* RTEMS_MP_PACKET_SEMAPHORE */ |
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80 | _Partition_MP_Process_packet, /* RTEMS_MP_PACKET_PARTITION */ |
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81 | 0, /* RTEMS_MP_PACKET_REGION */ |
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82 | _Event_MP_Process_packet, /* RTEMS_MP_PACKET_EVENT */ |
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83 | _Signal_MP_Process_packet /* RTEMS_MP_PACKET_SIGNAL */ |
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84 | }; |
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85 | |
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86 | Thread _Multiprocessing_Receive_server ( |
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87 | Thread_Argument ignored |
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88 | ) |
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89 | { |
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90 | |
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91 | rtems_packet_prefix *the_packet; |
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92 | packet_processor the_function; |
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93 | |
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94 | for ( ; ; ) { |
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95 | |
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96 | _Thread_Disable_dispatch(); |
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97 | _Event_Seize( RTEMS_EVENT_0, RTEMS_DEFAULT_OPTIONS, RTEMS_NO_TIMEOUT ); |
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98 | _Thread_Enable_dispatch(); |
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99 | |
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100 | for ( ; ; ) { |
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101 | the_packet = _MPCI_Receive_packet(); |
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102 | |
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103 | if ( !the_packet ) |
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104 | break; |
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105 | |
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106 | _Thread_Executing->receive_packet = the_packet; |
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107 | |
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108 | if ( !_Mp_packet_Is_valid_packet_class ( the_packet->the_class ) ) |
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109 | break; |
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110 | |
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111 | the_function = _Multiprocessor_Packet_processors[ the_packet->the_class ]; |
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112 | |
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113 | if ( !the_function ) |
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114 | break; |
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115 | |
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116 | (*the_function)( the_packet ); |
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117 | } |
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118 | } |
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119 | } |
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120 | |
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121 | /* end of file */ |
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