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/*
 *  gettimeofday() - SVR4 and BSD4.3 extension required by Newlib
 *
 *  COPYRIGHT (c) 1989-1999.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.OARcorp.com/rtems/license.html.
 *
 *  __gettod.c,v 1.15 2001/01/08 18:26:44 joel Exp
 */
 
#if HAVE_CONFIG_H
#include "config.h"
#endif
 
#define __RTEMS_VIOLATE_KERNEL_VISIBILITY__
 
#include <rtems.h>
 
#if !defined(RTEMS_UNIX)
#ifdef RTEMS_NEWLIB
#include <sys/reent.h>
#endif
 
#include <sys/time.h>
#include <time.h>
 
#include <errno.h>
#include <assert.h>
 
/*
 *  Seconds from January 1, 1970 to January 1, 1988.  Used to account for
 *  differences between POSIX API and RTEMS core.
 */
 
#define POSIX_TIME_SECONDS_1970_THROUGH_1988 \
  (((1987 - 1970 + 1)  * TOD_SECONDS_PER_NON_LEAP_YEAR) + \
  (4 * TOD_SECONDS_PER_DAY))
 
/*
 *  NOTE:  The solaris gettimeofday does not have a second parameter.
 */
 
int gettimeofday(
  struct timeval  *tp,
  struct timezone *tzp
)
{
  rtems_interrupt_level level;
  rtems_unsigned32      seconds;
  rtems_unsigned32      microseconds;
 
  if ( !tp ) {
    errno = EFAULT;
    return -1;
  }
 
  /*
   *  POSIX does not seem to allow for not having a TOD so we just
   *  grab the time of day.
   *
   *  NOTE: XXX this routine should really be in the executive proper.
   */
 
  rtems_interrupt_disable(level);
    seconds      = _TOD_Seconds_since_epoch;
    microseconds = _TOD_Current.ticks;
  rtems_interrupt_enable(level);
 
  tp->tv_sec  = seconds + POSIX_TIME_SECONDS_1970_THROUGH_1988;
  tp->tv_usec = microseconds * _TOD_Microseconds_per_tick;
 
  /*
   * newlib does not have timezone and daylight savings time
   * yet.  When it does this needs to be fixed.
   */
 
#if 0
  if ( tzp ) {
    tzp->tz_minuteswest = 0;  /* at UTC */
    tzp->tz_dsttime = 0;      /* no daylight savings */
  tzp->minuteswest = timezone / 60; /* from seconds to minutes */
  tzp->dsttime = daylight;
  }
#endif
  return 0;
}
 
#if defined(RTEMS_NEWLIB)
 
/*
 *  "Reentrant" version
 */
 
int _gettimeofday_r(
  struct _reent   *ignored_reentrancy_stuff,
  struct timeval  *tp,
  struct timezone *tzp
)
{
  return gettimeofday( tp, tzp );
}
 
/*
 *  "System call" version
 */
 
int _gettimeofday(
  struct timeval  *tp,
  struct timezone *tzp
)
{
  return gettimeofday( tp, tzp );
}
 
#endif /* defined(RTEMS_NEWLIB) */
 
#endif

Line No.	Rev	Author	Line
1	1026	ivang	`/*`
2			`* gettimeofday() - SVR4 and BSD4.3 extension required by Newlib`
3			`*`
4			`* COPYRIGHT (c) 1989-1999.`
5			`* On-Line Applications Research Corporation (OAR).`
6			`*`
7			`* The license and distribution terms for this file may be`
8			`* found in the file LICENSE in this distribution or at`
9			`* http://www.OARcorp.com/rtems/license.html.`
10			`*`
11			`* __gettod.c,v 1.15 2001/01/08 18:26:44 joel Exp`
12			`*/`
13
14			`#if HAVE_CONFIG_H`
15			`#include "config.h"`
16			`#endif`
17
18			`#define __RTEMS_VIOLATE_KERNEL_VISIBILITY__`
19
20			`#include <rtems.h>`
21
22			`#if !defined(RTEMS_UNIX)`
23			`#ifdef RTEMS_NEWLIB`
24			`#include <sys/reent.h>`
25			`#endif`
26
27			`#include <sys/time.h>`
28			`#include <time.h>`
29
30			`#include <errno.h>`
31			`#include <assert.h>`
32
33			`/*`
34			`* Seconds from January 1, 1970 to January 1, 1988. Used to account for`
35			`* differences between POSIX API and RTEMS core.`
36			`*/`
37
38			`#define POSIX_TIME_SECONDS_1970_THROUGH_1988 \`
39			`(((1987 - 1970 + 1) * TOD_SECONDS_PER_NON_LEAP_YEAR) + \`
40			`(4 * TOD_SECONDS_PER_DAY))`
41
42			`/*`
43			`* NOTE: The solaris gettimeofday does not have a second parameter.`
44			`*/`
45
46			`int gettimeofday(`
47			`struct timeval *tp,`
48			`struct timezone *tzp`
49			`)`
50			`{`
51			`rtems_interrupt_level level;`
52			`rtems_unsigned32 seconds;`
53			`rtems_unsigned32 microseconds;`
54
55			`if ( !tp ) {`
56			`errno = EFAULT;`
57			`return -1;`
58			`}`
59
60			`/*`
61			`* POSIX does not seem to allow for not having a TOD so we just`
62			`* grab the time of day.`
63			`*`
64			`* NOTE: XXX this routine should really be in the executive proper.`
65			`*/`
66
67			`rtems_interrupt_disable(level);`
68			`seconds = _TOD_Seconds_since_epoch;`
69			`microseconds = _TOD_Current.ticks;`
70			`rtems_interrupt_enable(level);`
71
72			`tp->tv_sec = seconds + POSIX_TIME_SECONDS_1970_THROUGH_1988;`
73			`tp->tv_usec = microseconds * _TOD_Microseconds_per_tick;`
74
75			`/*`
76			`* newlib does not have timezone and daylight savings time`
77			`* yet. When it does this needs to be fixed.`
78			`*/`
79
80			`#if 0`
81			`if ( tzp ) {`
82			`tzp->tz_minuteswest = 0; /* at UTC */`
83			`tzp->tz_dsttime = 0; /* no daylight savings */`
84			`tzp->minuteswest = timezone / 60; /* from seconds to minutes */`
85			`tzp->dsttime = daylight;`
86			`}`
87			`#endif`
88			`return 0;`
89			`}`
90
91			`#if defined(RTEMS_NEWLIB)`
92
93			`/*`
94			`* "Reentrant" version`
95			`*/`
96
97			`int _gettimeofday_r(`
98			`struct _reent *ignored_reentrancy_stuff,`
99			`struct timeval *tp,`
100			`struct timezone *tzp`
101			`)`
102			`{`
103			`return gettimeofday( tp, tzp );`
104			`}`
105
106			`/*`
107			`* "System call" version`
108			`*/`
109
110			`int _gettimeofday(`
111			`struct timeval *tp,`
112			`struct timezone *tzp`
113			`)`
114			`{`
115			`return gettimeofday( tp, tzp );`
116			`}`
117
118			`#endif /* defined(RTEMS_NEWLIB) */`
119
120			`#endif`

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[/] [or1k/] [trunk/] [rtems-20020807/] [cpukit/] [libcsupport/] [src/] [__gettod.c] - Blame information for rev 1765