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annotate packages/devs/wallclock/current/include/wallclock.hxx @ 2:443894e2e912 ecos-v1_2_1-release

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Block commit of eCos version 1.2.1
author jlarmour
date Tue, 11 May 1999 12:24:34 +0000
parents 3111d98ba7b3
children c38311975d4f
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1 #ifndef CYGONCE_DEVS_WALLCLOCK_HXX
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2 #define CYGONCE_DEVS_WALLCLOCK_HXX
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3
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4 //==========================================================================
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5 //
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6 // wallclock.hxx
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7 //
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8 // Wallclock interface declaration
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9 //
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10 //==========================================================================
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11 //####COPYRIGHTBEGIN####
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12 //
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13 // -------------------------------------------
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14 // The contents of this file are subject to the Cygnus eCos Public License
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15 // Version 1.0 (the "License"); you may not use this file except in
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16 // compliance with the License. You may obtain a copy of the License at
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17 // http://sourceware.cygnus.com/ecos
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18 //
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19 // Software distributed under the License is distributed on an "AS IS"
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20 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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21 // License for the specific language governing rights and limitations under
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22 // the License.
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23 //
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24 // The Original Code is eCos - Embedded Cygnus Operating System, released
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25 // September 30, 1998.
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26 //
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27 // The Initial Developer of the Original Code is Cygnus. Portions created
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28 // by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions. All Rights Reserved.
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29 // -------------------------------------------
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30 //
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31 //####COPYRIGHTEND####
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32 //==========================================================================
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33 //#####DESCRIPTIONBEGIN####
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34 //
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35 // Author(s): nickg
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36 // Contributors: nickg
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37 // Date: 1999-03-05
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38 // Purpose: Wall Clock declarations
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39 // Description: This file defines the interface to the wall clock device
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40 // that provides real time stamps. This is either an interface
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41 // to a hardware RTC like the Dallas DS12887, or it is emulated
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42 // using the kernel clock.
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43 // Usage: #include <cyg/devs/wallclock.hxx>
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44 //
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45 //####DESCRIPTIONEND####
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46 //
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47 //==========================================================================
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48
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49 #include <cyg/infra/cyg_type.h>
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50
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51 // -------------------------------------------------------------------------
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52 // Wallclock class
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53
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54 class Cyg_WallClock
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55 {
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56
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57 public:
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58
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59 Cyg_WallClock();
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60
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61 // Returns the current timestamp. This may involve reading the
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62 // hardware, so it may take anything up to a second to complete.
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63 cyg_uint32 get_current_time();
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64
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65 // Sets the value of the timestamp relative to now. This may involve
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66 // writing to the hardware, so it may take anything up to a second to
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67 // complete.
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68 void set_current_time( cyg_uint32 time_stamp );
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69
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70 // A static pointer to the single system defined wall clock device.
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71 static Cyg_WallClock *wallclock;
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72
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73 };
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74
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75 // -------------------------------------------------------------------------
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76
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77 #endif // ifndef CYGONCE_DEVS_WALLCLOCK_HXX
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78 // EOF wallclock.hxx