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annotate packages/kernel/current/tests/mutex3.cxx @ 76:435cced73e2f ecos-v1_3_1-release

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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
author jlarmour
date Tue, 28 Mar 2000 14:10:45 +0000
parents bf00f99aec69
children 6ed91473a1cd
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1 //==========================================================================
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2 //
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3 // mutex3.cxx
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4 //
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5 // Mutex test 3 - priority inheritance
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6 //
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7 //==========================================================================
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8 //####COPYRIGHTBEGIN####
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9 //
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10 // -------------------------------------------
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11 // The contents of this file are subject to the Red Hat eCos Public License
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12 // Version 1.1 (the "License"); you may not use this file except in
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13 // compliance with the License. You may obtain a copy of the License at
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14 // http://www.redhat.com/
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15 //
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16 // Software distributed under the License is distributed on an "AS IS"
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17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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18 // License for the specific language governing rights and limitations under
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19 // the License.
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20 //
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21 // The Original Code is eCos - Embedded Configurable Operating System,
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22 // released September 30, 1998.
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23 //
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24 // The Initial Developer of the Original Code is Red Hat.
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25 // Portions created by Red Hat are
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26 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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27 // All Rights Reserved.
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28 // -------------------------------------------
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29 //
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30 //####COPYRIGHTEND####
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31 //==========================================================================
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32 //#####DESCRIPTIONBEGIN####
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33 //
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34 // Author(s): hmt
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35 // Contributors: hmt
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36 // Date: 2000-01-06
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37 // Description: Tests mutex priority inheritance
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38 //####DESCRIPTIONEND####
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39
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40 #include <pkgconf/kernel.h>
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41
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42 #include <cyg/kernel/sched.hxx> // Cyg_Scheduler::start()
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43 #include <cyg/kernel/thread.hxx> // Cyg_Thread
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44
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45 #include <cyg/kernel/mutex.hxx>
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46
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47 #include <cyg/infra/testcase.h>
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48
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49 #include <cyg/kernel/sched.inl>
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50 #include <cyg/kernel/thread.inl>
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51
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52 #include <cyg/infra/diag.h> // diag_printf
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53
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54 // ------------------------------------------------------------------------
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55 //
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56 // These checks should be enough; any other scheduler which has priorities
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57 // should manifest as having no priority inheritance, but otherwise fine,
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58 // so the test should work correctly.
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59
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60 #if defined(CYGVAR_KERNEL_COUNTERS_CLOCK) && \
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61 (CYGNUM_KERNEL_SCHED_PRIORITIES > 20)
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62
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63 // ------------------------------------------------------------------------
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64 // Management functions
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65 //
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66 // Stolen from testaux.hxx and copied in here because I want to be able to
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67 // reset the world also.
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68
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69 #define NTHREADS 7
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70
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71 static inline void *operator new(size_t size, void *ptr) { return ptr; };
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72
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73 #define STACKSIZE CYGNUM_HAL_STACK_SIZE_TYPICAL
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74
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75 static Cyg_Thread *thread[NTHREADS] = { 0 };
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76
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77 typedef CYG_WORD64 CYG_ALIGNMENT_TYPE;
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78
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79 static CYG_ALIGNMENT_TYPE thread_obj[NTHREADS] [
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80 (sizeof(Cyg_Thread)+sizeof(CYG_ALIGNMENT_TYPE)-1)
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81 / sizeof(CYG_ALIGNMENT_TYPE) ];
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82
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83 static CYG_ALIGNMENT_TYPE stack[NTHREADS] [
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84 (STACKSIZE+sizeof(CYG_ALIGNMENT_TYPE)-1)
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85 / sizeof(CYG_ALIGNMENT_TYPE) ];
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86
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87 static int nthreads = 0;
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88
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89 static Cyg_Thread *new_thread( cyg_thread_entry *entry,
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90 CYG_ADDRWORD data,
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91 CYG_ADDRWORD priority,
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92 int do_resume )
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93 {
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94 CYG_ASSERT(nthreads < NTHREADS,
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95 "Attempt to create more than NTHREADS threads");
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96
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97 thread[nthreads] = new( (void *)&thread_obj[nthreads] )
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98 Cyg_Thread(priority,
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99 entry, data,
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100 NULL, // no name
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101 (CYG_ADDRESS)stack[nthreads], STACKSIZE );
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102
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103 if ( do_resume )
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104 thread[nthreads]->resume();
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105
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106 return thread[nthreads++];
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107 }
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108
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109
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110 static void kill_threads( void )
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111 {
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112 CYG_ASSERT(nthreads <= NTHREADS,
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113 "More than NTHREADS threads");
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114 CYG_ASSERT( Cyg_Thread::self() == thread[0],
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115 "kill_threads() not called from thread 0");
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116 while ( nthreads > 1 ) {
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117 nthreads--;
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118 if ( NULL != thread[nthreads] ) {
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119 thread[nthreads]->kill();
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120 thread[nthreads]->~Cyg_Thread();
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121 thread[nthreads] = NULL;
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122 }
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123 }
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124 CYG_ASSERT(nthreads == 1,
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125 "No threads left");
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126 }
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127
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128 // ------------------------------------------------------------------------
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129
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130 #define DELAYFACTOR 1 // for debugging
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131
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132 // ------------------------------------------------------------------------
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133
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134 static Cyg_Mutex mutex;
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135
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136 // These are for reporting back to the master thread
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137 volatile int got_it = 0;
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138 volatile int t3ran = 0;
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139 volatile int t3ended = 0;
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140 volatile int extras[4] = {0,0,0,0};
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141
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142 volatile int go_flag = 0; // but this one controls thread 3 from thread 2
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143
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144 // ------------------------------------------------------------------------
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145 // 0 to 3 of these run generally to interfere with the other processing,
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146 // to cause multiple prio inheritances, and clashes in any orders.
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147
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148 static void extra_thread( CYG_ADDRWORD data )
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149 {
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150 #define XINFO( z ) \
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151 do { z[13] = '0' + data; CYG_TEST_INFO( z ); } while ( 0 )
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152
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153 static char running[] = "Extra thread Xa running";
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154 static char exiting[] = "Extra thread Xa exiting";
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155 static char resumed[] = "Extra thread Xa resumed";
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156 static char locked[] = "Extra thread Xa locked";
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157 static char unlocked[] = "Extra thread Xa unlocked";
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158
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159 XINFO( running );
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160
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161 Cyg_Thread *self = Cyg_Thread::self();
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162
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163 self->suspend();
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164
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165 XINFO( resumed );
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166
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167 mutex.lock();
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168
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169 XINFO( locked );
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170
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171 mutex.unlock();
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172
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173 XINFO( unlocked );
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174
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175 extras[ data ] ++;
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176
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177 XINFO( exiting );
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178
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179 }
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180
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181 // ------------------------------------------------------------------------
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182
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183 static void t1( CYG_ADDRWORD data )
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184 {
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185 Cyg_Thread *self = Cyg_Thread::self();
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186
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187 CYG_TEST_INFO( "Thread 1 running" );
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188
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189 self->suspend();
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190
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191 mutex.lock();
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192
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193 got_it++;
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194
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195 CYG_TEST_CHECK( 0 == t3ended, "T3 ended prematurely [T1,1]" );
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196
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197 mutex.unlock();
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198
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199 CYG_TEST_CHECK( 0 == t3ended, "T3 ended prematurely [T1,2]" );
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200
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201 // That's all.
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202
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203 CYG_TEST_INFO( "Thread 1 exit" );
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204 }
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205
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206 // ------------------------------------------------------------------------
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207
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208 static void t2( CYG_ADDRWORD data )
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209 {
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210 Cyg_Thread *self = Cyg_Thread::self();
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211 int i;
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212 cyg_tick_count then, now;
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213
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214
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215 CYG_TEST_INFO( "Thread 2 running" );
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216
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217 CYG_TEST_CHECK( 0 == (data & ~0x77), "Bad T2 arg: extra bits" );
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218 CYG_TEST_CHECK( 0 == (data & (data >> 4)), "Bad T2 arg: overlap" );
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219
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220 self->suspend();
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221
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222 // depending on our config argument, optionally restart some of the
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223 // extra threads to throw noise into the scheduler:
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224 for ( i = 0; i < 3; i++ )
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225 if ( (1 << i) & data ) // bits 0-2 control
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226 thread[i+4]->resume(); // made sure extras are thread[4-6]
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227
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228 self->delay( DELAYFACTOR * 10 ); // let those threads run
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229
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230 Cyg_Scheduler::lock(); // do this next lot atomically
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231
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232 go_flag = 1; // unleash thread 3
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233 thread[1]->resume(); // resume thread 1
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234
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235 // depending on our config argument, optionally restart some of the
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236 // extra threads to throw noise into the scheduler at this later point:
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237 for ( i = 4; i < 7; i++ )
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238 if ( (1 << i) & data ) // bits 4-6 control
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239 thread[i]->resume(); // made sure extras are thread[4-6]
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240
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241 Cyg_Scheduler::unlock(); // let scheduling proceed
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242
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243 // Need a delay (but not a CPU yield) to allow t3 to awaken and act on
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244 // the go_flag, otherwise we check these details below too soon.
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245 // Actually, waiting for the clock to tick a couple of times would be
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246 // better, so that is what we will do. Must be a busy-wait.
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247 then = Cyg_Clock::real_time_clock->current_value();
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248 do {
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249 now = Cyg_Clock::real_time_clock->current_value();
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250 // Wait longer than the delay in t3 waiting on go_flag
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251 } while ( now < (then + 3) );
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252
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253 #ifdef CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INHERITANCE
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254 CYG_TEST_INFO( "Checking for MUTEX_PRIORITY_INHERITANCE" );
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255 CYG_TEST_CHECK( 1 == t3ran, "Thread 3 did not run" );
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256 CYG_TEST_CHECK( 1 == got_it, "Thread 1 did not get the mutex" );
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257 #else
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258 CYG_TEST_INFO( "Checking for NO mutex_priority_inheritance" );
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259 CYG_TEST_CHECK( 0 == t3ran, "Thread 3 DID run" );
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260 CYG_TEST_CHECK( 0 == got_it, "Thread 1 DID get the mutex" );
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261 #endif
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262
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263 CYG_TEST_CHECK( 0 == t3ended, "Thread 3 ended prematurely [T2,1]" );
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264
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265 self->delay( DELAYFACTOR * 20 ); // let those threads run
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266
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267 CYG_TEST_CHECK( 1 == t3ran, "Thread 3 did not run" );
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268 CYG_TEST_CHECK( 1 == got_it, "Thread 1 did not get the mutex" );
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269 CYG_TEST_CHECK( 1 == t3ended, "Thread 3 has not ended" );
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270
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271 for ( i = 0; i < 3; i++ )
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272 if ( (1 << i) & (data | data >> 4) ) // bits 0-2 and 4-6 control
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273 CYG_TEST_CHECK( 1 == extras[i+1], "Extra thread did not run" );
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274 else
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275 CYG_TEST_CHECK( 0 == extras[i+1], "Extra thread ran" );
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276
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277 CYG_TEST_PASS( "Thread 2 exiting, AOK" );
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278 // That's all: restart the control thread.
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279 thread[0]->resume();
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280 }
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281
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282 // ------------------------------------------------------------------------
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283
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284 static void t3( CYG_ADDRWORD data )
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285 {
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286 Cyg_Thread *self = Cyg_Thread::self();
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287
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288 CYG_TEST_INFO( "Thread 3 running" );
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289
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290 mutex.lock();
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291
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292 self->delay( DELAYFACTOR * 5 ); // let thread 3a run
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293
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294 thread[2]->resume(); // resume thread 2
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295
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296 while ( 0 == go_flag )
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297 self->delay(1); // wait until we are told to go
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298
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299 t3ran ++; // record the fact
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300
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301 CYG_TEST_CHECK( 0 == got_it, "Thread 1 claims to have got my mutex" );
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302
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303 mutex.unlock();
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304
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305 t3ended ++; // record that we came back
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306
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307 CYG_TEST_CHECK( 1 == got_it, "Thread 1 did not get the mutex" );
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308
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309 CYG_TEST_INFO( "Thread 3 exit" );
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310 }
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311
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312 // ------------------------------------------------------------------------
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313
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314 static void control_thread( CYG_ADDRWORD data )
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315 {
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316 Cyg_Thread *self = Cyg_Thread::self();
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317 int i;
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318
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319 CYG_TEST_INIT();
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320 CYG_TEST_INFO( "Control Thread running" );
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321
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322 // Go through the 27 possibilitied of resuming the extra threads
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323 // 0: not at all
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324 // 1: early in the process
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325 // 2: later on
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326 // which are represented by bits 0-3 and 4-6 resp in the argument to
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327 // thread 2 (none set means no resume at all).
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328 for ( i = 0; i < 27; i++ ) {
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329 static int xx[] = { 0, 1, 16 };
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330 int j = i % 3;
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331 int k = (i / 3) % 3;
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332 int l = (i / 9) % 3;
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333
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334 int d = xx[j] | (xx[k]<<1) | (xx[l]<<2) ;
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335
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336 if ( cyg_test_is_simulator && (0 != i && 13 != i && 26 != i) )
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337 continue; // 13 is 111 base 3, 26 is 222 base 3
62
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338
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339 #ifdef CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INHERITANCE
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340 // If the simple scheme plus relay enhancement, or any other
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341 // *complete* scheme, we can run all three ancillary threads no
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342 // problem, so no special action here.
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343
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344 #ifdef CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INHERITANCE_SIMPLE
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345 #ifndef CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INHERITANCE_SIMPLE_RELAY
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346 // If the simple scheme but no relay enhancement:
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347 if ( k ) // Cannot run thread 2a nor 3a
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348 break; // if no priority relay.
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349 #endif
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350 #endif
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351
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352 #else
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353 // If no priority inheritance at all, running threads 1a and 2a is
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354 // OK, but not thread 3a; it blocks the world.
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355 if ( l ) // Cannot run thread 3a if no
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356 break; // priority inheritance at all.
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357 #endif
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358
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359 mutex = Cyg_Mutex(); // Reinitialize this
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360
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361 got_it = 0;
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362 t3ran = 0;
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363 t3ended = 0;
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364 for ( int z = 0; z < 4; z++ ) extras[z] = 0;
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365 go_flag = 0;
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366
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367 new_thread( t1, 0, 5, 1 ); // Slot 1
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368 new_thread( t2, d, 10, 1 ); // Slot 2
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369 new_thread( t3, 0, 15, 1 ); // Slot 3
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370
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371 new_thread( extra_thread, 1, 8, j ); // Slot 4
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372 new_thread( extra_thread, 2, 12, k ); // Slot 5
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373 new_thread( extra_thread, 3, 17, l ); // Slot 6
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374
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375 {
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376 static char *a[] = { "inactive", "run early", "run late" };
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377 diag_printf( "\n----- [%2d] New Cycle: 0x%02x, Threads 1a %s, 2a %s, 3a %s -----\n",
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378 i, d, a[j], a[k], a[l] );
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379 }
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380
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381 self->suspend();
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382
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383 kill_threads();
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384 mutex.~Cyg_Mutex();
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385 }
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386 CYG_TEST_EXIT( "Control Thread exit" );
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387 }
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388
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389 // ------------------------------------------------------------------------
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390
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391 externC void
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392 cyg_user_start( void )
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393 {
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394 new_thread( control_thread, 0, 2, 1 );
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395 }
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396
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397 #else // CYGVAR_KERNEL_COUNTERS_CLOCK &c
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398
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399 externC void
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400 cyg_start( void )
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401 {
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402 CYG_TEST_INIT();
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403 CYG_TEST_PASS_FINISH("Mutex3 test requires:\n"
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404 "CYGVAR_KERNEL_COUNTERS_CLOCK &&\n"
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405 "(CYGNUM_KERNEL_SCHED_PRIORITIES > 20)\n");
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406 }
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407 #endif // CYGVAR_KERNEL_COUNTERS_CLOCK &c
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408
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409
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410 // ------------------------------------------------------------------------
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411 // Documentation: enclosed is the design of this test.
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412 //
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413 // It has been carefully constructed so that it does NOT use other kernel
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414 // facilities (aside from delay-task) to test that priority inheritance is
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415 // working, or not, as intended by the configuration.
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416 //
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417 // These notes describe the flow of control in one run of the test with the
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418 // ancillary tasks optionally interspersed. The details of how those extra
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419 // tasks are or are not allowed to run are not described.
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420 //
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421 //
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422 //
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423 // The only change in the test that depends on whether there is inheritance or
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424 // not is the check in thread 2 on "3-ran" and "got it" flags marked ****
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425 //
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426 //
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jlarmour
parents:
diff changeset
427 // volatile &c booleans:
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jlarmour
parents:
diff changeset
428 // "got it" = FALSE
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jlarmour
parents:
diff changeset
429 // "3-ran" = FALSE
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jlarmour
parents:
diff changeset
430 // "3-ended" = FALSE
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jlarmour
parents:
diff changeset
431 // "extras"[3] = FALSE
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jlarmour
parents:
diff changeset
432 //
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jlarmour
parents:
diff changeset
433 // thread 1. prio 5, self-suspend.
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jlarmour
parents:
diff changeset
434 //
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jlarmour
parents:
diff changeset
435 // thread 1a, prio 8, self-suspend.
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jlarmour
parents:
diff changeset
436 //
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jlarmour
parents:
diff changeset
437 // thread 2. prio 10, self-suspend.
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jlarmour
parents:
diff changeset
438 //
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jlarmour
parents:
diff changeset
439 // thread 2a, prio 12, self-suspend.
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jlarmour
parents:
diff changeset
440 //
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jlarmour
parents:
diff changeset
441 // thread 3. prio 15, runs, lock mutex, resume(2)
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jlarmour
parents:
diff changeset
442 //
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jlarmour
parents:
diff changeset
443 // thread 3a, prio 17, self-suspend.
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jlarmour
parents:
diff changeset
444 //
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jlarmour
parents:
diff changeset
445 // 2. runs,
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jlarmour
parents:
diff changeset
446 // 2. resume(3a) +++OPTIONAL
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jlarmour
parents:
diff changeset
447 // 2. resume(2a) +++OPTIONAL
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jlarmour
parents:
diff changeset
448 // 2. resume(1a) +++OPTIONAL
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jlarmour
parents:
diff changeset
449 // [1a lock-fail] thread 3->prio := 8
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jlarmour
parents:
diff changeset
450 //
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jlarmour
parents:
diff changeset
451 // [3. runs maybe, does the looping thing]
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jlarmour
parents:
diff changeset
452 //
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jlarmour
parents:
diff changeset
453 // 2. sleep a while...
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jlarmour
parents:
diff changeset
454 //
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jlarmour
parents:
diff changeset
455 // [2a lock-fail] thread 3->prio := 12
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jlarmour
parents:
diff changeset
456 //
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jlarmour
parents:
diff changeset
457 // [3. runs maybe, does the looping thing]
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jlarmour
parents:
diff changeset
458 //
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jlarmour
parents:
diff changeset
459 // [3a lock-fail] thread 3->prio unchanged
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jlarmour
parents:
diff changeset
460 //
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jlarmour
parents:
diff changeset
461 // [3. runs maybe, does the looping thing]
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jlarmour
parents:
diff changeset
462 //
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jlarmour
parents:
diff changeset
463 // 2. lock scheduler
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jlarmour
parents:
diff changeset
464 // 2. set "go-flag"
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jlarmour
parents:
diff changeset
465 // 2. resume(1)
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jlarmour
parents:
diff changeset
466 // 2. resume(1a) +++OPTIONAL
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jlarmour
parents:
diff changeset
467 // 2. resume(2a) +++OPTIONAL
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jlarmour
parents:
diff changeset
468 // 2. resume(3a) +++OPTIONAL
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jlarmour
parents:
diff changeset
469 // 2. unlock scheduler
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jlarmour
parents:
diff changeset
470 //
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jlarmour
parents:
diff changeset
471 // 1. runs, lock mutex - thread 3 has it locked
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jlarmour
parents:
diff changeset
472 //
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jlarmour
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diff changeset
473 // 2. busy-waits a bit for thread 3 to come out of its delay() loop.
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jlarmour
parents:
diff changeset
474 // This must be a *busy*wait so that 3 can only run via the
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jlarmour
parents:
diff changeset
475 // inherited raised priority.
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jlarmour
parents:
diff changeset
476 //
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jlarmour
parents:
diff changeset
477 // [xa. all do the same: lock mutex, ]
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jlarmour
parents:
diff changeset
478 // [xa. unlock mutex ]
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jlarmour
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diff changeset
479 // [xa. set a flag "extras"[x] to say we are done. ]
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jlarmour
parents:
diff changeset
480 // [xa. exit ]
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jlarmour
parents:
diff changeset
481 //
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jlarmour
parents:
diff changeset
482 //
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jlarmour
parents:
diff changeset
483 //
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jlarmour
parents:
diff changeset
484 // INHERIT
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jlarmour
parents:
diff changeset
485 // -------
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jlarmour
parents:
diff changeset
486 //
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jlarmour
parents:
diff changeset
487 // thread 3->prio := 5
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jlarmour
parents:
diff changeset
488 //
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jlarmour
parents:
diff changeset
489 // 3. runs,
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jlarmour
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diff changeset
490 // 3. set a flag to say "3-ran",
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jlarmour
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diff changeset
491 // 3. loop with a sleep(1) until "go-flag" is set.
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jlarmour
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diff changeset
492 // 3. check "got it" is false,
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jlarmour
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diff changeset
493 // 3. then unlock mutex,
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jlarmour
parents:
diff changeset
494 //
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jlarmour
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495 // thread 3->prio := 15
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jlarmour
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diff changeset
496 //
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jlarmour
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diff changeset
497 // 1. runs, set a flag to say "got it",
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jlarmour
parents:
diff changeset
498 // 1. check "3-ended" flag is false
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jlarmour
parents:
diff changeset
499 // 1. unlock mutex,
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jlarmour
parents:
diff changeset
500 // 1. check "3-ended" flag is still false
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jlarmour
parents:
diff changeset
501 // 1. exit.
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jlarmour
parents:
diff changeset
502 //
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jlarmour
parents:
diff changeset
503 // [1a locks, unlocks, exits]
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jlarmour
parents:
diff changeset
504 //
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jlarmour
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diff changeset
505 // 2. runs, check "3-ran" and "got it" flags are TRUE ****
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jlarmour
parents:
diff changeset
506 // 2. check "3-ended" flag is false
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jlarmour
parents:
diff changeset
507 // 2. sleeps for a while so that...
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jlarmour
parents:
diff changeset
508 //
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jlarmour
parents:
diff changeset
509 // [2a locks, unlocks, exits]
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jlarmour
parents:
diff changeset
510 //
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jlarmour
parents:
diff changeset
511 // 3. runs, set "3-ended" flag,
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jlarmour
parents:
diff changeset
512 // 3. check "3-ran" and "got it" flags
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jlarmour
parents:
diff changeset
513 // 3. exit
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jlarmour
parents:
diff changeset
514 //
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jlarmour
parents:
diff changeset
515 // [3a locks, unlocks, exits]
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jlarmour
parents:
diff changeset
516 //
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jlarmour
parents:
diff changeset
517 // 2. awakens, checks all flags true,
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jlarmour
parents:
diff changeset
518 // 2. check that all "extra" threads that we started have indeed run
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jlarmour
parents:
diff changeset
519 // 2. end of test.
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jlarmour
parents:
diff changeset
520 //
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jlarmour
parents:
diff changeset
521 //
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jlarmour
parents:
diff changeset
522 //
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jlarmour
parents:
diff changeset
523 //
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jlarmour
parents:
diff changeset
524 // NO-INHERIT
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jlarmour
parents:
diff changeset
525 // ----------
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT
jlarmour
parents:
diff changeset
526 // thread 1 is waiting on the mutex
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT
jlarmour
parents:
diff changeset
527 //
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jlarmour
parents:
diff changeset
528 // [1a lock-fail]
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jlarmour
parents:
diff changeset
529 //
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jlarmour
parents:
diff changeset
530 // 2. runs, checks that "3-ran" and "got it" flags are FALSE ****
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jlarmour
parents:
diff changeset
531 // 2. check "3-ended" flag is false
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jlarmour
parents:
diff changeset
532 // 2. sleeps for a while so that...
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT
jlarmour
parents:
diff changeset
533 //
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jlarmour
parents:
diff changeset
534 // [2a. lock-fail]
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jlarmour
parents:
diff changeset
535 //
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jlarmour
parents:
diff changeset
536 // 3. runs, set a flag to say "3-ran",
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jlarmour
parents:
diff changeset
537 // 3. check "got it" is false,
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jlarmour
parents:
diff changeset
538 // 3. then unlock mutex,
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jlarmour
parents:
diff changeset
539 //
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jlarmour
parents:
diff changeset
540 // 1. runs, set a flag to say "got it",
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jlarmour
parents:
diff changeset
541 // 1. check "3-ended" flag is false
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jlarmour
parents:
diff changeset
542 // 1. unlock mutex,
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jlarmour
parents:
diff changeset
543 // 1. check "3-ended" flag is still false
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jlarmour
parents:
diff changeset
544 // 1. exit.
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jlarmour
parents:
diff changeset
545 //
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jlarmour
parents:
diff changeset
546 // [1a locks, unlocks, exits]
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jlarmour
parents:
diff changeset
547 // [2a locks, unlocks, exits]
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jlarmour
parents:
diff changeset
548 //
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jlarmour
parents:
diff changeset
549 // 3. runs, set "3-ended" flag,
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jlarmour
parents:
diff changeset
550 // 3. check "3-ran" and "got it" flags
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jlarmour
parents:
diff changeset
551 // 3. exit
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jlarmour
parents:
diff changeset
552 //
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jlarmour
parents:
diff changeset
553 // [3a locks, unlocks, exits]
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jlarmour
parents:
diff changeset
554 //
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jlarmour
parents:
diff changeset
555 // 2. awakens, checks all flags true,
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jlarmour
parents:
diff changeset
556 // 2. check that all "extra" threads that we started have indeed run
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT
jlarmour
parents:
diff changeset
557 // 2. end of test.
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jlarmour
parents:
diff changeset
558 //
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jlarmour
parents:
diff changeset
559 //
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jlarmour
parents:
diff changeset
560 // (the end)
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jlarmour
parents:
diff changeset
561 //
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jlarmour
parents:
diff changeset
562 //
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jlarmour
parents:
diff changeset
563 // ------------------------------------------------------------------------
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jlarmour
parents:
diff changeset
564
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jlarmour
parents:
diff changeset
565 // EOF mutex3.cxx