1 | /* |
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2 | * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. |
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3 | * On-Line Applications Research Corporation (OAR). |
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4 | * All rights assigned to U.S. Government, 1994. |
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5 | * |
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6 | * This material may be reproduced by or for the U.S. Government pursuant |
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7 | * to the copyright license under the clause at DFARS 252.227-7013. This |
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8 | * notice must appear in all copies of this file and its derivatives. |
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9 | * |
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10 | * $Id$ |
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11 | */ |
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12 | |
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13 | #define CONFIGURE_INIT |
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14 | #include "system.h" |
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15 | #include <errno.h> |
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16 | |
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17 | #define MUTEX_BAD_ID -2 |
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18 | |
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19 | void Print_mutexattr( |
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20 | char *msg, |
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21 | pthread_mutexattr_t *attr |
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22 | ) |
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23 | { |
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24 | int status; |
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25 | int protocol; |
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26 | int prioceiling; |
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27 | int pshared; |
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28 | |
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29 | /* protocol */ |
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30 | |
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31 | status = pthread_mutexattr_getprotocol( attr, &protocol ); |
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32 | assert( !status ); |
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33 | |
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34 | printf( "%smutex protocol is (%d) -- ", msg, protocol ); |
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35 | switch ( protocol ) { |
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36 | case PTHREAD_PRIO_NONE: |
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37 | puts( "PTHREAD_PRIO_NONE" ); |
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38 | break; |
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39 | case PTHREAD_PRIO_INHERIT: |
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40 | puts( "PTHREAD_PRIO_INHERIT" ); |
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41 | break; |
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42 | case PTHREAD_PRIO_PROTECT: |
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43 | puts( "PTHREAD_PRIO_PROTECT" ); |
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44 | break; |
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45 | default: |
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46 | puts( "UNKNOWN" ); |
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47 | assert( 0 ); |
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48 | break; |
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49 | } |
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50 | |
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51 | /* priority ceiling */ |
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52 | |
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53 | status = pthread_mutexattr_getprioceiling( attr, &prioceiling ); |
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54 | assert( !status ); |
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55 | printf( "%smutex priority ceiling is %d\n", msg, prioceiling ); |
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56 | |
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57 | /* process shared */ |
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58 | |
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59 | status = pthread_mutexattr_getpshared( attr, &pshared ); |
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60 | assert( !status ); |
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61 | printf( "%smutex process shared is (%d) -- ", msg, pshared ); |
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62 | switch ( pshared ) { |
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63 | case PTHREAD_PROCESS_PRIVATE: |
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64 | puts( "PTHREAD_PROCESS_PRIVATE" ); |
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65 | break; |
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66 | case PTHREAD_PROCESS_SHARED: |
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67 | puts( "PTHREAD_PROCESS_SHARED" ); |
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68 | break; |
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69 | default: |
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70 | puts( "UNKNOWN" ); |
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71 | assert( 0 ); |
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72 | break; |
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73 | } |
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74 | } |
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75 | |
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76 | void *POSIX_Init( |
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77 | void *argument |
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78 | ) |
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79 | { |
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80 | int status; |
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81 | pthread_mutexattr_t attr; |
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82 | pthread_mutexattr_t destroyed_attr; |
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83 | struct timespec times; |
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84 | struct sched_param param; |
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85 | int pshared; |
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86 | int policy; |
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87 | int protocol; |
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88 | int ceiling; |
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89 | int old_ceiling; |
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90 | |
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91 | assert( MUTEX_BAD_ID != PTHREAD_MUTEX_INITIALIZER ); |
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92 | Mutex_bad_id = MUTEX_BAD_ID; |
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93 | |
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94 | puts( "\n\n*** POSIX TEST 5 ***" ); |
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95 | |
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96 | /* set the time of day, and print our buffer in multiple ways */ |
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97 | |
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98 | set_time( TM_FRIDAY, TM_MAY, 24, 96, 11, 5, 0 ); |
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99 | |
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100 | /* get id of this thread */ |
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101 | |
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102 | Init_id = pthread_self(); |
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103 | printf( "Init's ID is 0x%08x\n", Init_id ); |
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104 | |
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105 | /* tes pthread_mutex_attr_init */ |
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106 | |
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107 | puts( "Init: pthread_mutexattr_init - EINVAL (NULL attr)" ); |
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108 | status = pthread_mutexattr_init( NULL ); |
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109 | assert( status == EINVAL ); |
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110 | |
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111 | puts( "Init: pthread_mutexattr_init - SUCCESSFUL" ); |
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112 | status = pthread_mutexattr_init( &attr ); |
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113 | assert( !status ); |
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114 | |
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115 | Print_mutexattr( "Init: ", &attr ); |
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116 | |
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117 | /* create an "uninitialized" attribute structure */ |
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118 | |
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119 | status = pthread_mutexattr_init( &destroyed_attr ); |
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120 | assert( !status ); |
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121 | |
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122 | puts( "Init: pthread_mutexattr_destroy - SUCCESSFUL" ); |
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123 | status = pthread_mutexattr_destroy( &destroyed_attr ); |
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124 | assert( !status ); |
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125 | |
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126 | puts( "Init: pthread_mutexattr_destroy - EINVAL (NULL attr)" ); |
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127 | status = pthread_mutexattr_destroy( NULL ); |
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128 | assert( status == EINVAL ); |
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129 | |
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130 | puts( "Init: pthread_mutexattr_destroy - EINVAL (not initialized)" ); |
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131 | status = pthread_mutexattr_destroy( &destroyed_attr ); |
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132 | assert( status == EINVAL ); |
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133 | |
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134 | /* error cases for set and get pshared attribute */ |
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135 | |
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136 | empty_line(); |
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137 | |
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138 | puts( "Init: pthread_mutexattr_getpshared - EINVAL (NULL attr)" ); |
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139 | status = pthread_mutexattr_getpshared( NULL, &pshared ); |
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140 | assert( status == EINVAL ); |
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141 | |
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142 | puts( "Init: pthread_mutexattr_getpshared - EINVAL (NULL pshared)" ); |
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143 | status = pthread_mutexattr_getpshared( &attr, NULL ); |
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144 | assert( status == EINVAL ); |
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145 | |
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146 | puts( "Init: pthread_mutexattr_getpshared - EINVAL (not initialized)" ); |
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147 | status = pthread_mutexattr_getpshared( &destroyed_attr, &pshared ); |
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148 | assert( status == EINVAL ); |
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149 | |
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150 | pshared = PTHREAD_PROCESS_PRIVATE; |
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151 | puts( "Init: pthread_mutexattr_setpshared - EINVAL (NULL attr)" ); |
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152 | status = pthread_mutexattr_setpshared( NULL, pshared ); |
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153 | assert( status == EINVAL ); |
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154 | |
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155 | pshared = PTHREAD_PROCESS_PRIVATE; |
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156 | puts( "Init: pthread_mutexattr_setpshared - EINVAL (not initialized)" ); |
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157 | status = pthread_mutexattr_setpshared( &destroyed_attr, pshared ); |
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158 | assert( status == EINVAL ); |
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159 | |
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160 | /* error cases for set and get protocol attribute */ |
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161 | |
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162 | empty_line(); |
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163 | |
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164 | puts( "Init: pthread_mutexattr_getprotocol - EINVAL (NULL attr)" ); |
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165 | status = pthread_mutexattr_getprotocol( NULL, &protocol ); |
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166 | assert( status == EINVAL ); |
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167 | |
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168 | puts( "Init: pthread_mutexattr_getprotocol - EINVAL (NULL protocol)" ); |
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169 | status = pthread_mutexattr_getprotocol( &attr, NULL ); |
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170 | assert( status == EINVAL ); |
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171 | |
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172 | puts( "Init: pthread_mutexattr_getprotocol - EINVAL (not initialized)" ); |
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173 | status = pthread_mutexattr_getprotocol( &destroyed_attr, &protocol ); |
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174 | assert( status == EINVAL ); |
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175 | |
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176 | puts( "Init: pthread_mutexattr_setprotocol - EINVAL (NULL attr)" ); |
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177 | status = pthread_mutexattr_setprotocol( NULL, PTHREAD_PRIO_NONE ); |
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178 | assert( status == EINVAL ); |
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179 | |
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180 | puts( "Init: pthread_mutexattr_setprotocol - EINVAL (invalid protocol)" ); |
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181 | status = pthread_mutexattr_setprotocol( &attr, -1 ); |
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182 | assert( status == EINVAL ); |
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183 | |
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184 | puts( "Init: pthread_mutexattr_setprotocol - EINVAL (not initialized)" ); |
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185 | status = pthread_mutexattr_setprotocol( &destroyed_attr, -1 ); |
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186 | assert( status == EINVAL ); |
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187 | |
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188 | /* error cases for set and get prioceiling attribute */ |
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189 | |
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190 | empty_line(); |
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191 | |
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192 | puts( "Init: pthread_mutexattr_getprioceiling - EINVAL (NULL attr)" ); |
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193 | status = pthread_mutexattr_getprioceiling( NULL, &ceiling ); |
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194 | assert( status == EINVAL ); |
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195 | |
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196 | puts( "Init: pthread_mutexattr_getprioceiling - EINVAL (NULL prioceiling)" ); |
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197 | status = pthread_mutexattr_getprioceiling( &attr, NULL ); |
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198 | assert( status == EINVAL ); |
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199 | |
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200 | puts( "Init: pthread_mutexattr_getprioceiling - EINVAL (not initialized)" ); |
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201 | status = pthread_mutexattr_getprioceiling( &destroyed_attr, &ceiling ); |
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202 | assert( status == EINVAL ); |
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203 | |
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204 | puts( "Init: pthread_mutexattr_setprioceiling - EINVAL (NULL attr)" ); |
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205 | status = pthread_mutexattr_setprioceiling( NULL, 128 ); |
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206 | assert( status == EINVAL ); |
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207 | |
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208 | puts( "Init: pthread_mutexattr_setprioceiling - EINVAL (invalid priority)" ); |
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209 | status = pthread_mutexattr_setprioceiling( &attr, 512 ); |
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210 | if ( status != EINVAL ) |
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211 | printf( "status = %d\n", status ); |
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212 | assert( status == EINVAL ); |
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213 | |
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214 | puts( "Init: pthread_mutexattr_setprioceiling - EINVAL (not initialized)" ); |
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215 | status = pthread_mutexattr_setprioceiling( &destroyed_attr, -1 ); |
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216 | assert( status == EINVAL ); |
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217 | |
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218 | /* create a thread */ |
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219 | |
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220 | status = pthread_create( &Task_id, NULL, Task_1, NULL ); |
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221 | assert( !status ); |
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222 | |
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223 | /* now try some basic mutex operations */ |
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224 | |
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225 | empty_line(); |
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226 | |
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227 | puts( "Init: pthread_mutex_init - EINVAL (NULL mutex_id)" ); |
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228 | status = pthread_mutex_init( NULL, &attr ); |
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229 | assert( status == EINVAL ); |
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230 | |
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231 | puts( "Init: pthread_mutex_init - EINVAL (not initialized attr)" ); |
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232 | status = pthread_mutex_init( &Mutex_id, &destroyed_attr ); |
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233 | assert( status == EINVAL ); |
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234 | |
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235 | /* must get around error checks in attribute set routines */ |
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236 | attr.protocol = -1; |
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237 | |
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238 | puts( "Init: pthread_mutex_init - EINVAL (bad protocol)" ); |
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239 | status = pthread_mutex_init( &Mutex_id, &attr ); |
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240 | assert( status == EINVAL ); |
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241 | |
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242 | /* must get around error checks in attribute set routines */ |
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243 | attr.protocol = PTHREAD_PRIO_INHERIT; |
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244 | attr.prio_ceiling = -1; |
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245 | |
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246 | puts( "Init: pthread_mutex_init - EINVAL (bad priority ceiling)" ); |
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247 | status = pthread_mutex_init( &Mutex_id, &attr ); |
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248 | assert( status == EINVAL ); |
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249 | |
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250 | /* now set up for a success pthread_mutex_init */ |
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251 | |
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252 | puts( "Init: Resetting mutex attributes" ); |
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253 | status = pthread_mutexattr_init( &attr ); |
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254 | assert( !status ); |
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255 | |
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256 | puts( "Init: Changing mutex attributes" ); |
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257 | status = pthread_mutexattr_setprotocol( &attr, PTHREAD_PRIO_INHERIT ); |
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258 | assert( !status ); |
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259 | |
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260 | status = pthread_mutexattr_setprioceiling( &attr, 128 ); |
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261 | assert( !status ); |
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262 | |
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263 | status = pthread_mutexattr_setpshared( &attr, PTHREAD_PROCESS_SHARED ); |
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264 | assert( !status ); |
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265 | |
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266 | Print_mutexattr( "Init: ", &attr ); |
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267 | |
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268 | puts( "Init: Resetting mutex attributes" ); |
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269 | status = pthread_mutexattr_init( &attr ); |
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270 | assert( !status ); |
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271 | |
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272 | puts( "Init: pthread_mutex_init - SUCCESSFUL" ); |
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273 | status = pthread_mutex_init( &Mutex_id, &attr ); |
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274 | if ( status ) |
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275 | printf( "status = %d\n", status ); |
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276 | assert( !status ); |
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277 | |
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278 | puts( "Init: pthread_mutex_init - EBUSY (attempt to initialize an existing mutex)" ); |
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279 | status = pthread_mutex_init( &Mutex_id, &attr ); |
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280 | if ( !status ) |
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281 | printf( "status = %d\n", status ); |
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282 | assert( status == EBUSY ); |
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283 | |
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284 | puts( "Init: pthread_mutex_trylock - EINVAL (illegal ID)" ); |
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285 | status = pthread_mutex_trylock( &Mutex_bad_id ); |
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286 | if ( status != EINVAL ) |
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287 | printf( "status = %d\n", status ); |
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288 | assert( status == EINVAL ); |
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289 | |
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290 | puts( "Init: pthread_mutex_trylock - SUCCESSFUL" ); |
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291 | status = pthread_mutex_trylock( &Mutex_id ); |
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292 | if ( status ) |
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293 | printf( "status = %d\n", status ); |
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294 | assert( !status ); |
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295 | |
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296 | puts( "Init: pthread_mutex_trylock - EDEADLK (already locked)" ); |
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297 | status = pthread_mutex_trylock( &Mutex_id ); |
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298 | if ( status != EDEADLK ) |
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299 | printf( "status = %d\n", status ); |
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300 | assert( status == EDEADLK ); |
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301 | |
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302 | puts( "Init: pthread_mutex_lock - EDEADLK (already locked)" ); |
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303 | status = pthread_mutex_lock( &Mutex_id ); |
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304 | if ( status != EDEADLK ) |
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305 | printf( "status = %d\n", status ); |
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306 | assert( status == EDEADLK ); |
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307 | |
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308 | puts( "Init: Sleep 1 second" ); |
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309 | |
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310 | sleep( 1 ); |
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311 | |
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312 | /* switch to task 1 */ |
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313 | |
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314 | puts( "Init: pthread_mutex_unlock - EINVAL (invalid id)" ); |
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315 | status = pthread_mutex_unlock( &Mutex_bad_id ); |
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316 | if ( status != EINVAL ) |
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317 | printf( "status = %d\n", status ); |
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318 | assert( status == EINVAL ); |
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319 | |
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320 | puts( "Init: pthread_mutex_unlock - SUCCESSFUL" ); |
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321 | status = pthread_mutex_unlock( &Mutex_id ); |
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322 | if ( status ) |
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323 | printf( "status = %d\n", status ); |
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324 | assert( !status ); |
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325 | |
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326 | puts( "Init: pthread_mutex_unlock - EPERM (not owner)" ); |
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327 | status = pthread_mutex_unlock( &Mutex_id ); |
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328 | if ( status != EPERM ) |
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329 | printf( "status = %d\n", status ); |
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330 | assert( status == EPERM ); |
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331 | |
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332 | times.tv_sec = 0; |
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333 | times.tv_nsec = 500000000; |
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334 | puts( "Init: pthread_mutex_timedlock - time out in 1/2 second" ); |
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335 | status = pthread_mutex_timedlock( &Mutex_id, × ); |
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336 | if ( status != EAGAIN ) |
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337 | printf( "status = %d\n", status ); |
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338 | assert( status == EAGAIN ); |
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339 | |
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340 | /* switch to idle */ |
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341 | |
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342 | puts( "Init: pthread_mutex_timedlock - EAGAIN (timeout)" ); |
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343 | |
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344 | /* destroy a mutex */ |
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345 | |
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346 | empty_line(); |
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347 | |
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348 | puts( "Init: pthread_mutex_init - SUCCESSFUL" ); |
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349 | status = pthread_mutex_init( &Mutex2_id, &attr ); |
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350 | if ( status ) |
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351 | printf( "status = %d\n", status ); |
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352 | assert( !status ); |
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353 | |
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354 | puts( "Init: pthread_mutex_init - EAGAIN (too many)" ); |
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355 | status = pthread_mutex_init( &Mutex3_id, &attr ); |
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356 | assert( status == EAGAIN ); |
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357 | |
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358 | puts( "Init: pthread_mutexattr_destroy - SUCCESSFUL" ); |
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359 | status = pthread_mutexattr_destroy( &attr ); |
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360 | assert( !status ); |
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361 | |
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362 | puts( "Init: pthread_mutex_destroy - SUCCESSFUL" ); |
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363 | status = pthread_mutex_destroy( &Mutex2_id ); |
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364 | assert( !status ); |
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365 | |
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366 | puts( "Init: pthread_mutex_destroy - EINVAL (invalid id)" ); |
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367 | status = pthread_mutex_destroy( &Mutex_bad_id ); |
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368 | assert( status == EINVAL ); |
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369 | |
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370 | /* destroy a busy mutex */ |
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371 | |
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372 | empty_line(); |
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373 | |
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374 | puts( "Init: pthread_mutexattr_init - SUCCESSFUL" ); |
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375 | status = pthread_mutexattr_init( &attr ); |
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376 | assert( !status ); |
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377 | |
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378 | puts( "Init: pthread_mutex_init - SUCCESSFUL" ); |
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379 | status = pthread_mutex_init( &Mutex2_id, &attr ); |
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380 | assert( !status ); |
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381 | |
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382 | puts( "Init: pthread_mutex_trylock - SUCCESSFUL" ); |
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383 | status = pthread_mutex_trylock( &Mutex2_id ); |
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384 | if ( status ) |
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385 | printf( "status = %d\n", status ); |
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386 | assert( !status ); |
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387 | |
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388 | puts( "Init: pthread_mutex_destroy - EBUSY (already locked)" ); |
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389 | status = pthread_mutex_destroy( &Mutex2_id ); |
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390 | if ( status != EBUSY ) |
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391 | printf( "status = %d\n", status ); |
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392 | assert( status == EBUSY ); |
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393 | |
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394 | puts( "Init: pthread_mutex_unlock - SUCCESSFUL" ); |
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395 | status = pthread_mutex_unlock( &Mutex2_id ); |
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396 | assert( !status ); |
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397 | |
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398 | puts( "Init: pthread_mutex_destroy - SUCCESSFUL" ); |
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399 | status = pthread_mutex_destroy( &Mutex2_id ); |
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400 | assert( !status ); |
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401 | |
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402 | /* priority inherit mutex */ |
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403 | |
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404 | empty_line(); |
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405 | |
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406 | puts( "Init: pthread_mutexattr_init - SUCCESSFUL" ); |
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407 | status = pthread_mutexattr_init( &attr ); |
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408 | assert( !status ); |
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409 | |
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410 | puts( |
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411 | "Init: pthread_mutexattr_setprotocol - SUCCESSFUL (PTHREAD_PRIO_INHERIT)" |
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412 | ); |
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413 | status = pthread_mutexattr_setprotocol( &attr, PTHREAD_PRIO_INHERIT ); |
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414 | assert( !status ); |
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415 | |
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416 | puts( "Init: pthread_mutex_init - SUCCESSFUL" ); |
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417 | status = pthread_mutex_init( &Mutex2_id, &attr ); |
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418 | assert( !status ); |
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419 | |
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420 | puts( "Init: pthread_mutex_trylock - SUCCESSFUL" ); |
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421 | status = pthread_mutex_trylock( &Mutex2_id ); |
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422 | assert( !status ); |
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423 | |
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424 | /* create a thread at a lower priority */ |
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425 | |
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426 | status = pthread_create( &Task2_id, NULL, Task_2, NULL ); |
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427 | assert( !status ); |
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428 | |
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429 | /* set priority of Task2 to highest priority */ |
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430 | |
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431 | param.sched_priority = 255; |
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432 | |
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433 | puts( "Init: pthread_setschedparam - Setting Task2 priority to highest" ); |
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434 | status = pthread_setschedparam( Task2_id, SCHED_FIFO, ¶m ); |
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435 | assert( !status ); |
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436 | |
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437 | /* switching to Task2 */ |
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438 | |
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439 | status = pthread_getschedparam( pthread_self(), &policy, ¶m ); |
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440 | assert( !status ); |
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441 | printf( "Init: pthread_getschedparam - priority = %d\n", param.sched_priority); |
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442 | |
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443 | puts( "Init: pthread_mutex_unlock - SUCCESSFUL" ); |
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444 | status = pthread_mutex_unlock( &Mutex2_id ); |
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445 | assert( !status ); |
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446 | |
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447 | puts( "Init: pthread_mutexattr_destroy - SUCCESSFUL" ); |
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448 | status = pthread_mutexattr_destroy( &attr ); |
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449 | assert( !status ); |
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450 | |
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451 | puts( "Init: pthread_mutex_destroy - SUCCESSFUL" ); |
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452 | status = pthread_mutex_destroy( &Mutex2_id ); |
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453 | assert( !status ); |
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454 | |
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455 | /* priority ceiling mutex */ |
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456 | |
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457 | empty_line(); |
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458 | |
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459 | puts( "Init: pthread_mutexattr_init - SUCCESSFUL" ); |
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460 | status = pthread_mutexattr_init( &attr ); |
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461 | assert( !status ); |
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462 | |
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463 | puts( |
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464 | "Init: pthread_mutexattr_setprotocol - SUCCESSFUL (PTHREAD_PRIO_PROTECT)" |
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465 | ); |
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466 | status = pthread_mutexattr_setprotocol( &attr, PTHREAD_PRIO_PROTECT ); |
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467 | assert( !status ); |
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468 | |
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469 | puts( "Init: pthread_mutex_init - SUCCESSFUL" ); |
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470 | status = pthread_mutex_init( &Mutex2_id, &attr ); |
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471 | assert( !status ); |
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472 | |
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473 | puts( "Init: pthread_mutex_getprioceiling - EINVAL (invalid id)" ); |
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474 | status = pthread_mutex_getprioceiling( &Mutex_bad_id, &ceiling ); |
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475 | assert( status == EINVAL ); |
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476 | |
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477 | puts( "Init: pthread_mutex_getprioceiling - EINVAL (NULL ceiling)" ); |
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478 | status = pthread_mutex_getprioceiling( &Mutex2_id, NULL ); |
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479 | assert( status == EINVAL ); |
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480 | |
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481 | status = pthread_mutex_getprioceiling( &Mutex2_id, &ceiling ); |
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482 | assert( !status ); |
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483 | printf( "Init: pthread_mutex_getprioceiling - %d\n", ceiling ); |
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484 | |
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485 | puts( "Init: pthread_mutex_setprioceiling - EINVAL (invalid id)" ); |
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486 | status = pthread_mutex_setprioceiling( &Mutex_bad_id, 200, &old_ceiling ); |
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487 | assert( status == EINVAL ); |
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488 | |
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489 | puts( "Init: pthread_mutex_setprioceiling - EINVAL (illegal priority)" ); |
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490 | status = pthread_mutex_setprioceiling( &Mutex2_id, 512, &old_ceiling ); |
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491 | assert( status == EINVAL ); |
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492 | |
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493 | puts( "Init: pthread_mutex_setprioceiling - EINVAL (NULL ceiling)" ); |
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494 | status = pthread_mutex_setprioceiling( &Mutex2_id, 128, NULL ); |
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495 | assert( status == EINVAL ); |
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496 | |
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497 | /* normal cases of set priority ceiling */ |
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498 | |
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499 | puts( "Init: pthread_mutex_setprioceiling - new ceiling = 200" ); |
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500 | status = pthread_mutex_setprioceiling( &Mutex2_id, 200, &old_ceiling ); |
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501 | assert( !status ); |
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502 | printf( |
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503 | "Init: pthread_mutex_setprioceiling - old ceiling = %d\n",old_ceiling |
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504 | ); |
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505 | |
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506 | status = pthread_getschedparam( pthread_self(), &policy, ¶m ); |
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507 | assert( !status ); |
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508 | printf( |
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509 | "Init: pthread_getschedparam - priority = %d\n", param.sched_priority |
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510 | ); |
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511 | |
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512 | puts( "Init: pthread_mutex_trylock - SUCCESSFUL" ); |
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513 | status = pthread_mutex_trylock( &Mutex2_id ); |
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514 | assert( !status ); |
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515 | |
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516 | status = pthread_getschedparam( pthread_self(), &policy, ¶m ); |
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517 | assert( !status ); |
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518 | printf( |
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519 | "Init: pthread_getschedparam - priority = %d\n", param.sched_priority |
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520 | ); |
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521 | |
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522 | /* create a thread at a higher priority */ |
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523 | |
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524 | status = pthread_create( &Task3_id, NULL, Task_3, NULL ); |
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525 | assert( !status ); |
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526 | |
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527 | /* set priority of Task3 to highest priority */ |
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528 | |
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529 | param.sched_priority = 199; |
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530 | |
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531 | status = pthread_setschedparam( Task3_id, SCHED_FIFO, ¶m ); |
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532 | assert( !status ); |
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533 | puts( "Init: pthread_setschedparam - set Task3 priority to highest" ); |
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534 | |
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535 | /* DOES NOT SWITCH to Task3 */ |
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536 | |
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537 | puts( "Init: Sleep 1 second" ); |
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538 | assert( !status ); |
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539 | sleep( 1 ); |
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540 | |
---|
541 | /* switch to task 3 */ |
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542 | |
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543 | puts( "Init: pthread_mutex_unlock - SUCCESSFUL" ); |
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544 | status = pthread_mutex_unlock( &Mutex2_id ); |
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545 | assert( !status ); |
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546 | |
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547 | status = pthread_mutex_getprioceiling( &Mutex2_id, &ceiling ); |
---|
548 | assert( !status ); |
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549 | printf( "Init: pthread_mutex_getprioceiling- ceiling = %d\n", ceiling ); |
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550 | |
---|
551 | /* set priority of Init to highest priority */ |
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552 | |
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553 | param.sched_priority = 255; |
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554 | |
---|
555 | status = pthread_setschedparam( Init_id, SCHED_FIFO, ¶m ); |
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556 | assert( !status ); |
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557 | puts( "Init: pthread_setschedparam - set Init priority to highest" ); |
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558 | |
---|
559 | puts( "Init: pthread_mutex_lock - EINVAL (priority ceiling violation)" ); |
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560 | status = pthread_mutex_lock( &Mutex2_id ); |
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561 | if ( status != EINVAL ) |
---|
562 | printf( "status = %d\n", status ); |
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563 | assert( status == EINVAL ); |
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564 | |
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565 | puts( "*** END OF POSIX TEST 5 ***" ); |
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566 | exit( 0 ); |
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567 | |
---|
568 | return NULL; /* just so the compiler thinks we returned something */ |
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569 | } |
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