1 | /* |
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2 | * COPYRIGHT (c) 1989-2012. |
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3 | * On-Line Applications Research Corporation (OAR). |
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4 | * |
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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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7 | * http://www.rtems.com/license/LICENSE. |
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8 | */ |
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9 | |
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10 | #ifdef HAVE_CONFIG_H |
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11 | #include "config.h" |
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12 | #endif |
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13 | |
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14 | #include <timesys.h> |
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15 | #include <tmacros.h> |
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16 | #include <rtems/timerdrv.h> |
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17 | #include "test_support.h" |
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18 | |
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19 | #include <pthread.h> |
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20 | #include <sched.h> |
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21 | |
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22 | /* forward declarations to avoid warnings */ |
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23 | void *POSIX_Init(void *argument); |
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24 | void *Middle(void *argument); |
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25 | void *Low(void *argument); |
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26 | |
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27 | pthread_barrier_t barrier; |
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28 | |
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29 | void *Low( |
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30 | void *argument |
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31 | ) |
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32 | { |
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33 | benchmark_timer_t end_time; |
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34 | |
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35 | /* |
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36 | * Now we have finished the thread startup overhead, |
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37 | * so let other threads run. When we return, we can |
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38 | * finish the benchmark. |
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39 | */ |
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40 | sched_yield(); |
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41 | /* let other threads run */ |
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42 | |
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43 | end_time = benchmark_timer_read(); |
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44 | |
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45 | put_time( |
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46 | "pthread_barrier_wait â blocking", |
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47 | end_time, |
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48 | OPERATION_COUNT, |
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49 | 0, |
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50 | 0 |
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51 | ); |
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52 | |
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53 | puts( "*** END OF POSIX TIME PSXTMBARRIER 02 ***" ); |
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54 | |
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55 | rtems_test_exit( 0 ); |
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56 | return NULL; |
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57 | } |
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58 | |
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59 | void *Middle( |
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60 | void *argument |
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61 | ) |
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62 | { |
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63 | /* |
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64 | * Now we have finished the thread startup overhead, |
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65 | * so let other threads run. When we return, we can |
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66 | * finish the benchmark. |
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67 | */ |
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68 | sched_yield(); |
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69 | /* let other threads run */ |
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70 | |
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71 | (void) pthread_barrier_wait( &barrier ); |
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72 | |
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73 | /* should never return */ |
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74 | rtems_test_assert( FALSE ); |
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75 | return NULL; |
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76 | } |
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77 | |
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78 | void *POSIX_Init( |
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79 | void *argument |
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80 | ) |
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81 | { |
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82 | int i; |
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83 | int status; |
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84 | pthread_t threadId; |
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85 | pthread_barrierattr_t attr; |
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86 | |
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87 | puts( "\n\n*** POSIX TIME PSXTMBARRIER 02 ***" ); |
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88 | |
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89 | for ( i=0 ; i < OPERATION_COUNT - 1 ; i++ ) { |
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90 | status = pthread_create( &threadId, NULL, Middle, NULL ); |
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91 | rtems_test_assert( !status ); |
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92 | } |
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93 | |
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94 | status = pthread_create( &threadId, NULL, Low, NULL ); |
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95 | rtems_test_assert( !status ); |
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96 | |
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97 | /* |
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98 | * Create the barrier with default attributes and deliberately |
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99 | * create it after the Threads so if they run too early, they |
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100 | * wull fail with an error. |
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101 | */ |
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102 | status = pthread_barrierattr_init( &attr ); |
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103 | rtems_test_assert( status == 0 ); |
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104 | |
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105 | /* |
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106 | * Set threshold on count higher than number of threads so all will |
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107 | * block. |
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108 | */ |
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109 | status = pthread_barrier_init( &barrier,&attr, OPERATION_COUNT + 2 ); |
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110 | rtems_test_assert( status == 0 ); |
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111 | |
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112 | /* |
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113 | * Let other threads run through their initialization |
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114 | */ |
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115 | sched_yield(); |
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116 | |
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117 | /* |
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118 | * Start the timer and start the blocking barrier wait chain through |
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119 | * all the other tasks. |
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120 | */ |
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121 | benchmark_timer_initialize(); |
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122 | /* blocking barrier call */ |
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123 | status = pthread_barrier_wait( &barrier ); |
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124 | rtems_test_assert( status == 0 ); |
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125 | return NULL; |
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126 | } |
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127 | |
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128 | /* configuration information */ |
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129 | |
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130 | #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER |
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131 | #define CONFIGURE_APPLICATION_NEEDS_TIMER_DRIVER |
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132 | |
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133 | #define CONFIGURE_MAXIMUM_POSIX_THREADS OPERATION_COUNT + 2 |
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134 | #define CONFIGURE_MAXIMUM_POSIX_BARRIERS 1 |
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135 | #define CONFIGURE_POSIX_INIT_THREAD_TABLE |
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136 | |
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137 | #define CONFIGURE_INIT |
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138 | |
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139 | #include <rtems/confdefs.h> |
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140 | /* end of file */ |
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