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1 /*================================================================= |
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2 // |
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3 // context.c |
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4 // |
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5 // HAL Thread context handling test |
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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): nickg |
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33 // Contributors: nickg |
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34 // Date: 1998-10-07 |
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35 //####DESCRIPTIONEND#### |
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36 */ |
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37 |
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38 #include <pkgconf/hal.h> |
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39 |
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40 #include <pkgconf/infra.h> |
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41 |
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42 #include <cyg/infra/testcase.h> |
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43 |
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44 #include <cyg/infra/cyg_trac.h> |
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45 #include <cyg/hal/hal_arch.h> |
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46 |
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47 #define CYG_TRACE_USER_BOOL 1 |
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48 |
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49 // ------------------------------------------------------------------------- |
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50 |
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51 #define THREADS 4 |
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52 #define STACKSIZE (2*1024) |
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53 |
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54 char stack[THREADS][STACKSIZE]; |
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55 |
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56 CYG_ADDRWORD sp[THREADS]; |
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57 |
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58 cyg_count32 switches = 0; |
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59 |
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60 // ------------------------------------------------------------------------- |
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61 |
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62 void entry0( CYG_ADDRWORD arg ) |
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63 { |
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64 CYG_TRACE1B("Thread %d started\n", arg ); |
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65 |
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66 while( switches < 1000 ) |
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67 { |
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68 HAL_THREAD_SWITCH_CONTEXT( &sp[arg], &sp[(arg+1) % THREADS] ); |
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69 |
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70 CYG_TRACE1B("Thread %d resumed\n", arg ); |
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71 |
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72 switches++; |
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73 } |
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74 |
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75 CYG_TEST_PASS_FINISH("HAL Context test"); |
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76 |
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77 } |
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78 |
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79 // ------------------------------------------------------------------------- |
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80 |
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81 void context_main(void) |
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82 { |
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83 int i; |
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84 |
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85 CYG_TEST_INIT(); |
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86 |
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87 // Init all thread contexts: |
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88 |
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89 for( i = 0 ; i < THREADS; i++ ) |
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90 { |
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91 sp[i] = (CYG_ADDRWORD)stack[i]+STACKSIZE; |
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92 |
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93 HAL_THREAD_INIT_CONTEXT( sp[i], i, entry0, i*0x01010000 ); |
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94 } |
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95 |
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96 // Load the first thread. |
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97 |
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98 HAL_THREAD_LOAD_CONTEXT( &sp[0] ); |
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99 } |
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100 |
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101 // ------------------------------------------------------------------------- |
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102 |
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103 externC void |
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104 cyg_start( void ) |
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105 { |
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106 context_main(); |
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107 } |
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108 |
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109 // ------------------------------------------------------------------------- |
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110 /* EOF context.c */ |
