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1 //========================================================================== |
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2 // |
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3 // cnt_sem1.cxx |
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4 // |
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5 // Counting semaphore test 1 |
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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 Cygnus eCos Public License |
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12 // Version 1.0 (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://sourceware.cygnus.com/ecos |
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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 Cygnus Operating System, released |
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22 // September 30, 1998. |
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23 // |
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24 // The Initial Developer of the Original Code is Cygnus. Portions created |
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25 // by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions. All Rights Reserved. |
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26 // ------------------------------------------- |
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27 // |
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28 //####COPYRIGHTEND#### |
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29 //========================================================================== |
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30 //#####DESCRIPTIONBEGIN#### |
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31 // |
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32 // Author(s): dsm |
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33 // Contributors: dsm |
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34 // Date: 1998-02-24 |
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35 // Description: Tests basic counting semaphore functionality. |
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36 //####DESCRIPTIONEND#### |
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37 |
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38 #include <pkgconf/kernel.h> |
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39 |
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40 #include <cyg/kernel/thread.hxx> // Cyg_Thread |
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41 #include <cyg/kernel/thread.inl> |
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42 #include <cyg/kernel/sched.hxx> // Cyg_Scheduler::start() |
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43 |
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44 #include <cyg/kernel/sema.hxx> |
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45 |
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46 #include <cyg/infra/testcase.h> |
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47 |
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48 #include <cyg/kernel/sched.inl> |
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49 |
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50 |
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51 #define NTHREADS 2 |
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52 #include "testaux.hxx" |
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53 |
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54 static Cyg_Counting_Semaphore s0(0), s1(2), s2; |
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55 |
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56 static volatile cyg_ucount8 q = 0; |
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57 |
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58 static void entry0( CYG_ADDRWORD data ) |
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59 { |
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60 s0.wait(); |
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61 CHECK( 1 == q++ ); |
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62 s1.post(); |
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63 s0.wait(); |
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64 CHECK( 3 == q++ ); |
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65 CHECK( 0 == s0.peek() ); |
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66 CHECK( ! s0.trywait() ); |
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67 s0.post(); |
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68 CHECK( 4 == q++ ); |
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69 CHECK( 1 == s0.peek() ); |
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70 s0.post(); |
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71 CHECK( 2 == s0.peek() ); |
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72 s1.post(); |
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73 CHECK( 0 == s2.peek() ); |
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74 s2.wait(); |
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75 CHECK( 6 == q++ ); |
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76 CYG_TEST_PASS_FINISH("Counting Semaphore 1 OK"); |
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77 } |
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78 |
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79 static void entry1( CYG_ADDRWORD data ) |
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80 { |
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81 CHECK( 2 == s1.peek() ); |
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82 s1.wait(); |
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83 CHECK( 1 == s1.peek() ); |
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84 s1.wait(); |
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85 CHECK( 0 == q++ ); |
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86 CHECK( 0 == s0.peek() ); |
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87 s0.post(); |
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88 s1.wait(); |
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89 CHECK( 2 == q++ ); |
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90 s0.post(); |
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91 s1.wait(); |
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92 CHECK( 5 == q++ ); |
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93 CHECK( 2 == s0.peek() ); |
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94 CHECK( s0.trywait() ); |
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95 CHECK( 1 == s0.peek() ); |
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96 CHECK( s0.trywait() ); |
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97 CHECK( 0 == s0.peek() ); |
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98 s2.post(); |
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99 s0.wait(); |
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100 CYG_TEST_FAIL_FINISH("Not reached"); |
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101 } |
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102 |
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103 void cnt_sem1_main( void ) |
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104 { |
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105 CYG_TEST_INIT(); |
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106 |
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107 new_thread(entry0, 0); |
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108 new_thread(entry1, 1); |
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109 |
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110 Cyg_Scheduler::start(); |
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111 |
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112 CYG_TEST_FAIL_FINISH("Not reached"); |
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113 } |
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114 |
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115 externC void |
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116 cyg_start( void ) |
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117 { |
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118 cnt_sem1_main(); |
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119 } |
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120 |
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121 // EOF cnt_sem1.cxx |
