[1b4f2b30] | 1 | /* |
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[2e7e636f] | 2 | * COPYRIGHT (c) 1989-2009. |
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[7e811af1] | 3 | * On-Line Applications Research Corporation (OAR). |
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| 4 | * |
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[98e4ebf5] | 5 | * The license and distribution terms for this file may be |
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| 6 | * found in the file LICENSE in this distribution or at |
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[3c48599] | 7 | * http://www.rtems.com/license/LICENSE. |
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[7e811af1] | 8 | * |
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| 9 | * $Id$ |
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| 10 | */ |
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| 11 | |
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[cafefbf] | 12 | #ifdef HAVE_CONFIG_H |
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| 13 | #include "config.h" |
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| 14 | #endif |
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| 15 | |
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[98843fb8] | 16 | #include <sched.h> |
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| 17 | |
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[7e811af1] | 18 | #define CONFIGURE_INIT |
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| 19 | #include "system.h" |
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| 20 | #include <errno.h> |
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[4562dd8] | 21 | #include "pritime.h" |
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[7e811af1] | 22 | |
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[2e7e636f] | 23 | void print_schedparam( |
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| 24 | char *prefix, |
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| 25 | struct sched_param *schedparam |
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| 26 | ); |
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| 27 | |
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[5abf63d] | 28 | int HIGH_PRIORITY; |
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| 29 | int MEDIUM_PRIORITY; |
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| 30 | int LOW_PRIORITY; |
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| 31 | |
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[7e811af1] | 32 | void print_schedparam( |
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| 33 | char *prefix, |
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| 34 | struct sched_param *schedparam |
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| 35 | ) |
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| 36 | { |
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| 37 | printf( "%ssched priority = %d\n", prefix, schedparam->sched_priority ); |
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| 38 | #if defined(_POSIX_SPORADIC_SERVER) |
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[66c9ad8] | 39 | printf( "%ssched_ss_low_priority = %d\n", |
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| 40 | prefix, schedparam->sched_ss_low_priority ); |
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[4562dd8] | 41 | printf( "%ssched_ss_repl_period = (%" PRIdtime_t ", %ld)\n", prefix, |
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[66c9ad8] | 42 | schedparam->sched_ss_repl_period.tv_sec, |
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| 43 | schedparam->sched_ss_repl_period.tv_nsec ); |
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[4562dd8] | 44 | printf( "%ssched_ss_init_budget = (%" PRIdtime_t ", %ld)\n", prefix, |
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[66c9ad8] | 45 | schedparam->sched_ss_init_budget.tv_sec, |
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| 46 | schedparam->sched_ss_init_budget.tv_nsec ); |
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[7e811af1] | 47 | #else |
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| 48 | printf( "%s_POSIX_SPORADIC_SERVER is not defined\n" ); |
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| 49 | #endif |
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| 50 | } |
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| 51 | |
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| 52 | void *POSIX_Init( |
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| 53 | void *argument |
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| 54 | ) |
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| 55 | { |
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| 56 | int status; |
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[84b03316] | 57 | int passes; |
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[7e811af1] | 58 | int schedpolicy; |
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| 59 | int priority; |
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| 60 | struct sched_param schedparam; |
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| 61 | char buffer[ 80 ]; |
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| 62 | pthread_mutexattr_t attr; |
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[c45ca10] | 63 | time_t start; |
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| 64 | time_t now; |
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[7e811af1] | 65 | |
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| 66 | puts( "\n\n*** POSIX TEST 9 ***" ); |
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| 67 | |
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| 68 | /* set the time of day, and print our buffer in multiple ways */ |
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| 69 | |
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| 70 | set_time( TM_FRIDAY, TM_MAY, 24, 96, 11, 5, 0 ); |
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| 71 | |
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| 72 | /* get id of this thread */ |
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| 73 | |
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| 74 | Init_id = pthread_self(); |
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[39615f4] | 75 | printf( "Init's ID is 0x%08" PRIxpthread_t "\n", Init_id ); |
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[1b4f2b30] | 76 | |
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[7e811af1] | 77 | /* try to use this thread as a sporadic server */ |
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| 78 | |
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| 79 | puts( "Init: pthread_getschedparam - SUCCESSFUL" ); |
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| 80 | status = pthread_getschedparam( pthread_self(), &schedpolicy, &schedparam ); |
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[33c46f1] | 81 | rtems_test_assert( !status ); |
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[7e811af1] | 82 | |
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| 83 | priority = schedparam.sched_priority; |
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| 84 | sprintf( buffer, " - current priority = %d", priority ); |
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| 85 | print_current_time( "Init: ", buffer ); |
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| 86 | |
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[66c9ad8] | 87 | schedparam.sched_ss_repl_period.tv_sec = 0; |
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| 88 | schedparam.sched_ss_repl_period.tv_nsec = 500000000; /* 1/2 second */ |
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| 89 | schedparam.sched_ss_init_budget.tv_sec = 0; |
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| 90 | schedparam.sched_ss_init_budget.tv_nsec = 250000000; /* 1/4 second */ |
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[7e811af1] | 91 | |
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[5abf63d] | 92 | schedparam.sched_priority = sched_get_priority_max(SCHED_SPORADIC); |
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[66c9ad8] | 93 | schedparam.sched_ss_low_priority = sched_get_priority_max(SCHED_SPORADIC) - 2; |
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[7e811af1] | 94 | |
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| 95 | puts( "Init: pthread_setschedparam - SUCCESSFUL (sporadic server)" ); |
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| 96 | status = pthread_setschedparam( pthread_self(), SCHED_SPORADIC, &schedparam ); |
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[33c46f1] | 97 | rtems_test_assert( !status ); |
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[7e811af1] | 98 | |
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| 99 | status = pthread_getschedparam( pthread_self(), &schedpolicy, &schedparam ); |
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[33c46f1] | 100 | rtems_test_assert( !status ); |
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[7e811af1] | 101 | |
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| 102 | priority = schedparam.sched_priority; |
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| 103 | sprintf( buffer, " - new priority = %d", priority ); |
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| 104 | print_current_time( "Init: ", buffer ); |
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| 105 | |
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| 106 | /* go into a loop consuming CPU time to watch our priority change */ |
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| 107 | |
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| 108 | for ( passes=0 ; passes <= 3 ; ) { |
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| 109 | status = pthread_getschedparam( pthread_self(), &schedpolicy, &schedparam ); |
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[33c46f1] | 110 | rtems_test_assert( !status ); |
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[1b4f2b30] | 111 | |
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[7e811af1] | 112 | if ( priority != schedparam.sched_priority ) { |
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| 113 | priority = schedparam.sched_priority; |
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| 114 | sprintf( buffer, " - new priority = %d", priority ); |
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| 115 | print_current_time( "Init: ", buffer ); |
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| 116 | passes++; |
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| 117 | } |
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| 118 | } |
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| 119 | |
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| 120 | /* now see if this works if we are holding a priority ceiling mutex */ |
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| 121 | |
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| 122 | empty_line(); |
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| 123 | |
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| 124 | status = pthread_getschedparam( pthread_self(), &schedpolicy, &schedparam ); |
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[33c46f1] | 125 | rtems_test_assert( !status ); |
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[7e811af1] | 126 | |
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[66c9ad8] | 127 | schedparam.sched_ss_repl_period.tv_sec = 0; |
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| 128 | schedparam.sched_ss_repl_period.tv_nsec = 500000000; /* 1/2 second */ |
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| 129 | schedparam.sched_ss_init_budget.tv_sec = 0; |
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| 130 | schedparam.sched_ss_init_budget.tv_nsec = 250000000; /* 1/4 second */ |
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[7e811af1] | 131 | |
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[5abf63d] | 132 | HIGH_PRIORITY = sched_get_priority_max( SCHED_SPORADIC ); |
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| 133 | MEDIUM_PRIORITY = sched_get_priority_max( SCHED_SPORADIC ) - 2; |
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| 134 | LOW_PRIORITY = sched_get_priority_max( SCHED_SPORADIC ) - 4; |
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[7e811af1] | 135 | |
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| 136 | schedparam.sched_priority = HIGH_PRIORITY; |
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[66c9ad8] | 137 | schedparam.sched_ss_low_priority = LOW_PRIORITY; |
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[1b4f2b30] | 138 | |
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[7e811af1] | 139 | puts( "Init: pthread_setschedparam - SUCCESSFUL (sporadic server)" ); |
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| 140 | status = pthread_setschedparam( pthread_self(), SCHED_SPORADIC, &schedparam ); |
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[33c46f1] | 141 | rtems_test_assert( !status ); |
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[7e811af1] | 142 | |
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| 143 | puts( "Init: Initializing mutex attributes for priority ceiling" ); |
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| 144 | status = pthread_mutexattr_init( &attr ); |
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[33c46f1] | 145 | rtems_test_assert( !status ); |
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[7e811af1] | 146 | |
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[c45ca10] | 147 | status = pthread_mutexattr_setprotocol( &attr, PTHREAD_PRIO_INHERIT ); |
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[33c46f1] | 148 | rtems_test_assert( !status ); |
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[1b4f2b30] | 149 | |
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[7e811af1] | 150 | puts( "Init: Creating a mutex" ); |
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| 151 | status = pthread_mutex_init( &Mutex_id, &attr ); |
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| 152 | if ( status ) |
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| 153 | printf( "status = %d\n", status ); |
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[33c46f1] | 154 | rtems_test_assert( !status ); |
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[7e811af1] | 155 | |
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| 156 | status = pthread_getschedparam( pthread_self(), &schedpolicy, &schedparam ); |
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[33c46f1] | 157 | rtems_test_assert( !status ); |
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[1b4f2b30] | 158 | |
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[7e811af1] | 159 | priority = schedparam.sched_priority; |
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| 160 | sprintf( buffer, " - new priority = %d", priority ); |
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| 161 | print_current_time( "Init: ", buffer ); |
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| 162 | |
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[c45ca10] | 163 | /* go into a loop consuming CPU time to watch our priority NOT lower */ |
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| 164 | |
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| 165 | start = time( &start ); |
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| 166 | |
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| 167 | puts( "Init: pthread_mutex_lock acquire the lock" ); |
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| 168 | status = pthread_mutex_lock( &Mutex_id ); |
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| 169 | if ( status ) |
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| 170 | printf( "status = %d %s\n", status, strerror(status) ); |
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[33c46f1] | 171 | rtems_test_assert( !status ); |
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[7e811af1] | 172 | |
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| 173 | for ( ; ; ) { |
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| 174 | status = pthread_getschedparam( pthread_self(), &schedpolicy, &schedparam ); |
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[33c46f1] | 175 | rtems_test_assert( !status ); |
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[7e811af1] | 176 | |
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[c45ca10] | 177 | if ( schedparam.sched_priority == LOW_PRIORITY ) { |
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| 178 | puts( "ERROR - Init's priority lowered while holding mutex" ); |
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| 179 | rtems_test_exit(0); |
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| 180 | } |
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| 181 | |
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| 182 | now = time( &now ); |
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[b1274bd9] | 183 | if ( now - start > 3 ) |
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[c45ca10] | 184 | break; |
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[7e811af1] | 185 | |
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| 186 | priority = schedparam.sched_priority; |
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| 187 | sprintf( buffer, " - new priority = %d", priority ); |
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| 188 | print_current_time( "Init: ", buffer ); |
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| 189 | |
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| 190 | status = pthread_getschedparam( pthread_self(), &schedpolicy, &schedparam ); |
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[33c46f1] | 191 | rtems_test_assert( !status ); |
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[7e811af1] | 192 | |
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| 193 | priority = schedparam.sched_priority; |
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| 194 | sprintf( buffer, " - new priority = %d", priority ); |
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| 195 | print_current_time( "Init: ", buffer ); |
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| 196 | |
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| 197 | break; |
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| 198 | } |
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| 199 | |
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| 200 | /* with this unlock we should be able to go to low priority */ |
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| 201 | |
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[1b4f2b30] | 202 | puts( "Init: unlock mutex" ); |
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[7e811af1] | 203 | status = pthread_mutex_unlock( &Mutex_id ); |
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| 204 | if ( status ) |
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| 205 | printf( "status = %d\n", status ); |
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[33c46f1] | 206 | rtems_test_assert( !status ); |
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[7e811af1] | 207 | |
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| 208 | status = pthread_getschedparam( pthread_self(), &schedpolicy, &schedparam ); |
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[33c46f1] | 209 | rtems_test_assert( !status ); |
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[7e811af1] | 210 | |
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| 211 | priority = schedparam.sched_priority; |
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| 212 | sprintf( buffer, " - new priority = %d", priority ); |
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| 213 | print_current_time( "Init: ", buffer ); |
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| 214 | |
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| 215 | for ( ; ; ) { |
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| 216 | status = pthread_getschedparam( pthread_self(), &schedpolicy, &schedparam ); |
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[33c46f1] | 217 | rtems_test_assert( !status ); |
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[1b4f2b30] | 218 | |
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[7e811af1] | 219 | if ( schedparam.sched_priority == LOW_PRIORITY ) |
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| 220 | break; |
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| 221 | } |
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| 222 | |
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| 223 | status = pthread_getschedparam( pthread_self(), &schedpolicy, &schedparam ); |
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[33c46f1] | 224 | rtems_test_assert( !status ); |
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[1b4f2b30] | 225 | |
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[7e811af1] | 226 | priority = schedparam.sched_priority; |
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| 227 | sprintf( buffer, " - new priority = %d", priority ); |
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| 228 | print_current_time( "Init: ", buffer ); |
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| 229 | |
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| 230 | puts( "*** END OF POSIX TEST 9 ***" ); |
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[d802489] | 231 | rtems_test_exit( 0 ); |
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[7e811af1] | 232 | |
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| 233 | return NULL; /* just so the compiler thinks we returned something */ |
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| 234 | } |
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