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comparison packages/compat/posix/current/include/time.h @ 115:6ed91473a1cd ecos-sw-2000-08-21

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Merge from eCos master repository on 2000-08-21-22:40:54-BST
author jlarmour
date Fri, 25 Aug 2000 17:32:38 +0000
parents
children 678094f34118
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114:5ad2b71d525e 115:6ed91473a1cd
1 #ifndef CYGONCE_POSIX_TIME_H
2 #define CYGONCE_POSIX_TIME_H
3 //=============================================================================
4 //
5 // time.h
6 //
7 // POSIX time header
8 //
9 //=============================================================================
10 //####COPYRIGHTBEGIN####
11 //
12 // -------------------------------------------
13 // The contents of this file are subject to the Red Hat eCos Public License
14 // Version 1.1 (the "License"); you may not use this file except in
15 // compliance with the License. You may obtain a copy of the License at
16 // http://www.redhat.com/
17 //
18 // Software distributed under the License is distributed on an "AS IS"
19 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
20 // License for the specific language governing rights and limitations under
21 // the License.
22 //
23 // The Original Code is eCos - Embedded Configurable Operating System,
24 // released September 30, 1998.
25 //
26 // The Initial Developer of the Original Code is Red Hat.
27 // Portions created by Red Hat are
28 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
29 // All Rights Reserved.
30 // -------------------------------------------
31 //
32 //####COPYRIGHTEND####
33 //=============================================================================
34 //#####DESCRIPTIONBEGIN####
35 //
36 // Author(s): nickg
37 // Contributors: nickg, jlarmour
38 // Date: 2000-03-17
39 // Purpose: POSIX time header
40 // Description: This header contains all the definitions needed to support
41 // the POSIX timer and timer API under eCos.
42 //
43 // Usage: Do not include this file directly - instead include <time.h>
44 //
45 //
46 //####DESCRIPTIONEND####
47 //
48 //=============================================================================
49
50 #include <cyg/infra/cyg_type.h>
51
52 //-----------------------------------------------------------------------------
53 // Types for timers and clocks
54
55 typedef int clockid_t;
56
57 typedef int timer_t;
58
59 // forward declaration - if the app uses it it will have to include
60 // signal.h anyway
61 struct sigevent;
62
63 //-----------------------------------------------------------------------------
64 // Structures
65
66 struct timespec
67 {
68 time_t tv_sec;
69 long tv_nsec;
70 };
71
72 struct itimerspec
73 {
74 struct timespec it_interval;
75 struct timespec it_value;
76 };
77
78 //-----------------------------------------------------------------------------
79 // Manifest constants
80
81 #define CLOCK_REALTIME 0
82
83 #define TIMER_ABSTIME 1
84
85 //-----------------------------------------------------------------------------
86 // Clock functions
87
88 // Set the clocks current time
89 externC int clock_settime( clockid_t clock_id, const struct timespec *tp);
90
91 // Get the clocks current time
92 externC int clock_gettime( clockid_t clock_id, struct timespec *tp);
93
94 // Get the clocks resolution
95 externC int clock_getres( clockid_t clock_id, struct timespec *tp);
96
97
98 //-----------------------------------------------------------------------------
99 // Timer functions
100
101 // Create a timer based on the given clock.
102 externC int timer_create( clockid_t clock_id,
103 struct sigevent *evp,
104 timer_t *timer_id);
105
106 // Delete the timer
107 externC int timer_delete( timer_t timer_id );
108
109 // Set the expiration time of the timer.
110 externC int timer_settime( timer_t timerid, int flags,
111 const struct itimerspec *value,
112 struct itimerspec *ovalue );
113
114 // Get current timer values
115 externC int timer_gettime( timer_t timerid, struct itimerspec *value );
116
117 // Get number of missed triggers
118 externC int timer_getoverrun( timer_t timerid );
119
120 //-----------------------------------------------------------------------------
121 // Nanosleep
122
123 // Sleep for the given time.
124 externC int nanosleep( const struct timespec *rqtp,
125 struct timespec *rmtp);
126
127
128 //-----------------------------------------------------------------------------
129 #endif // ifndef CYGONCE_POSIX_TIME_H
130 // End of time.h