1 #ifndef CYGONCE_POSIX_TIME_H
2 #define CYGONCE_POSIX_TIME_H
3 /*=============================================================================
9 //=============================================================================
10 //####ECOSGPLCOPYRIGHTBEGIN####
11 // -------------------------------------------
12 // This file is part of eCos, the Embedded Configurable Operating System.
13 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
15 // eCos is free software; you can redistribute it and/or modify it under
16 // the terms of the GNU General Public License as published by the Free
17 // Software Foundation; either version 2 or (at your option) any later version.
19 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
20 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
21 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
24 // You should have received a copy of the GNU General Public License along
25 // with eCos; if not, write to the Free Software Foundation, Inc.,
26 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
28 // As a special exception, if other files instantiate templates or use macros
29 // or inline functions from this file, or you compile this file and link it
30 // with other works to produce a work based on this file, this file does not
31 // by itself cause the resulting work to be covered by the GNU General Public
32 // License. However the source code for this file must still be made available
33 // in accordance with section (3) of the GNU General Public License.
35 // This exception does not invalidate any other reasons why a work based on
36 // this file might be covered by the GNU General Public License.
38 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
39 // at http://sources.redhat.com/ecos/ecos-license/
40 // -------------------------------------------
41 //####ECOSGPLCOPYRIGHTEND####
42 //=============================================================================
43 //#####DESCRIPTIONBEGIN####
46 // Contributors: nickg, jlarmour
48 // Purpose: POSIX time header
49 // Description: This header contains all the definitions needed to support
50 // the POSIX timer and timer API under eCos.
52 // Usage: Do not include this file directly - instead include <time.h>
55 //####DESCRIPTIONEND####
57 //===========================================================================*/
59 #include <pkgconf/posix.h>
60 #include <cyg/infra/cyg_type.h>
62 /*---------------------------------------------------------------------------*/
63 /* Types for timers and clocks */
65 typedef int clockid_t;
67 #ifdef CYGPKG_POSIX_TIMERS
70 /* forward declaration - if the app uses it it will have to include
76 /*---------------------------------------------------------------------------*/
85 #ifdef CYGPKG_POSIX_TIMERS
88 struct timespec it_interval;
89 struct timespec it_value;
93 /*---------------------------------------------------------------------------*/
94 /* Manifest constants */
96 #define CLOCK_REALTIME 0
98 #ifdef CYGPKG_POSIX_TIMERS
99 #define TIMER_ABSTIME 1
102 /*---------------------------------------------------------------------------*/
103 /* Clock functions */
105 /* Set the clocks current time */
106 __externC int clock_settime( clockid_t clock_id, const struct timespec *tp);
108 /* Get the clocks current time */
109 __externC int clock_gettime( clockid_t clock_id, struct timespec *tp);
111 /* Get the clocks resolution */
112 __externC int clock_getres( clockid_t clock_id, struct timespec *tp);
115 /*---------------------------------------------------------------------------*/
116 /* Timer functions */
118 #ifdef CYGPKG_POSIX_TIMERS
120 /* Create a timer based on the given clock. */
121 __externC int timer_create( clockid_t clock_id,
122 struct sigevent *evp,
125 /* Delete the timer */
126 __externC int timer_delete( timer_t timer_id );
128 /* Set the expiration time of the timer. */
129 __externC int timer_settime( timer_t timerid, int flags,
130 const struct itimerspec *value,
131 struct itimerspec *ovalue );
133 /* Get current timer values */
134 __externC int timer_gettime( timer_t timerid, struct itimerspec *value );
136 /* Get number of missed triggers */
137 __externC int timer_getoverrun( timer_t timerid );
141 /*---------------------------------------------------------------------------*/
144 /* Sleep for the given time. */
145 __externC int nanosleep( const struct timespec *rqtp,
146 struct timespec *rmtp);
149 /*---------------------------------------------------------------------------*/
150 #endif /* ifndef CYGONCE_POSIX_TIME_H */