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annotate packages/io/wallclock/current/tests/wallclock2.cxx @ 130:eb9fd8c04db3 ecos-sw-2000-10-23

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Merge from eCos master repository on 2000-10-23-17:01:37-BST
author jlarmour
date Mon, 23 Oct 2000 17:10:57 +0000
parents 6ed91473a1cd
children a9ac27ec7abc
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1 //==========================================================================
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2 //
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3 // wallclock2.cxx
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4 //
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5 // WallClock battery backed up 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 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): jskov
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35 // Contributors: jskov
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36 // Date: 2000-03-29
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37 // Description: Tests the WallClock device.
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38 // Prints wallclock setting (for human verification that time
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39 // matches the expected value). Then tries to set/restore
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40 // clock value, and verifies that the WallClock epoch matches
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41 // that of the libc.
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42 //####DESCRIPTIONEND####
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43 // -------------------------------------------------------------------------
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44
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45 #include <pkgconf/system.h>
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46 #include <cyg/infra/testcase.h>
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47 #include <cyg/infra/diag.h>
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48 #ifdef CYGPKG_LIBC_TIME
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49 #include <pkgconf/libc_time.h>
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50 #endif
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51 #ifdef CYGPKG_LIBC_STARTUP
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52 #include <pkgconf/libc_startup.h>
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53 #endif
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54
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55 #if !defined(CYGSEM_LIBC_TIME_CLOCK_WORKING)
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56 # define NA_MSG "Requires libc time functions"
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57 #elif !defined(CYGPKG_LIBC_STARTUP)
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58 # define NA_MSG "Requires libc startup package"
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59 #elif !defined(CYGINT_LIBC_STARTUP_CONTEXT)
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60 # define NA_MSG "Requires main to be invoked"
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61 #endif
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62
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63 #ifndef NA_MSG
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64 #include <time.h>
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65 #include <cyg/io/wallclock.hxx> // The WallClock API
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66
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67 // -------------------------------------------------------------------------
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68
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69
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70 externC int
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71 main (void )
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72 {
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73 time_t now, test, test2;
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75 CYG_TEST_INIT();
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76
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77 // make this predictable - independent of the user option
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78 cyg_libc_time_setzoneoffsets(0, 3600);
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79 cyg_libc_time_setdst( CYG_LIBC_TIME_DSTOFF );
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80
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81 // Print out current setting so a human can verify that clock state
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82 // was valid.
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83 now = (time_t) Cyg_WallClock::wallclock->get_current_time();
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84 diag_printf("WallClock is set to: %s", ctime(&now));
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85
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86 // Check that set/get works
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87 Cyg_WallClock::wallclock->set_current_time( 0 );
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88 test = (time_t) Cyg_WallClock::wallclock->get_current_time();
94
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89 // 2000.03.01 00:00:00 UTC
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90 Cyg_WallClock::wallclock->set_current_time( 951868800 );
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91 test2 = (time_t) Cyg_WallClock::wallclock->get_current_time();
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92 // Should test 2100 and 2400 leap year calculations as well, but
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93 // these would overflow with today's time_t.
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94 Cyg_WallClock::wallclock->set_current_time( now );
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95 CYG_TEST_PASS_FAIL(2 >= test, // each operation can take one second
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96 "Can set WallClock to epoch");
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97 CYG_TEST_PASS_FAIL(951868800+2 > test2 &&
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98 951868800 <= test2,
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99 "WallClock date conversion Y2K safe");
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100
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101 // Test that the wallclock and libc use same epoch.
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102 test = (time_t) 0;
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103 CYG_TEST_PASS_FAIL(!strcmp(ctime(&test), "Thu Jan 01 00:00:00 1970\n"),
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104 "WallClock epoch matches libc epoch");
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105
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106 CYG_TEST_FINISH("Finished wallclock battery test");
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107 }
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108
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109 #else
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110
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111 externC void
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112 cyg_start( void )
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113 {
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114 CYG_TEST_INIT();
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115 CYG_TEST_PASS_FINISH(NA_MSG);
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116 }
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117
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118 #endif // NA_MSG
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119
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120 // -------------------------------------------------------------------------
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121 // EOF wallclock2.cxx