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Joel Sherrill
1998-03-27 13:24:21 +00:00
parent a3a7527e1f
commit 4fa4ea6512
6 changed files with 60 additions and 58 deletions
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doc/user/clock.t
+27 -27
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@@ -29,9 +29,9 @@ and other time related capabilities. The directives provided by
the clock manager are:
@itemize @bullet
@item @code{clock_set} - Set system date and time
@item @code{clock_get} - Get system date and time information
@item @code{clock_tick} - Announce a clock tick
@item @code{@value{DIRPREFIX}clock_set} - Set system date and time
@item @code{@value{DIRPREFIX}clock_get} - Get system date and time information
@item @code{@value{DIRPREFIX}clock_tick} - Announce a clock tick
@end itemize
@ifinfo
@@ -241,17 +241,17 @@ dependent on the option selected by the caller. The following
options are available:
@itemize @bullet
@item @code{CLOCK_GET_TOD} - obtain native style date and time
@item @code{@value{RPREFIX}CLOCK_GET_TOD} - obtain native style date and time
@item @code{CLOCK_GET_TIME_VALUE} - obtain UNIX-style date and time
@item @code{@value{RPREFIX}CLOCK_GET_TIME_VALUE} - obtain UNIX-style date and time
@item @code{CLOCK_GET_TICKS_SINCE_BOOT} - obtain number of ticks
@item @code{@value{RPREFIX}CLOCK_GET_TICKS_SINCE_BOOT} - obtain number of ticks
since RTEMS was initialized
@item @code{CLOCK_GET_SECONDS_SINCE_EPOCH} - obtain number of seconds
@item @code{@value{RPREFIX}CLOCK_GET_SECONDS_SINCE_EPOCH} - obtain number of seconds
since RTEMS epoch
@item @code{CLOCK_GET_TICKS_PER_SECOND} - obtain number of clock ticks
@item @code{@value{RPREFIX}CLOCK_GET_TICKS_PER_SECOND} - obtain number of clock ticks
per second
@end itemize
@@ -302,7 +302,7 @@ procedure Clock_Set (
@end ifset
@subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - date and time set successfully@*
@code{@value{RPREFIX}SUCCESSFUL} - date and time set successfully@*
@code{INVALID_TIME_OF_DAY} - invalid time of day
@subheading DESCRIPTION:
@@ -357,52 +357,52 @@ procedure Clock_Get (
@end ifset
@subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - current time obtained successfully@*
@code{NOT_DEFINED} - system date and time is not set
@code{@value{RPREFIX}SUCCESSFUL} - current time obtained successfully@*
@code{@value{RPREFIX}NOT_DEFINED} - system date and time is not set
@subheading DESCRIPTION:
This directive obtains the system date and time. If
the caller is attempting to obtain the date and time (i.e.
option is set to either @code{CLOCK_GET_SECONDS_SINCE_EPOCH},
@code{CLOCK_GET_TOD}, or @code{CLOCK_GET_TIME_VALUE}) and the date and time
option is set to either @code{@value{RPREFIX}CLOCK_GET_SECONDS_SINCE_EPOCH},
@code{@value{RPREFIX}CLOCK_GET_TOD}, or @code{@value{RPREFIX}CLOCK_GET_TIME_VALUE}) and the date and time
has not been set with a previous call to clock_set, then the
@code{NOT_DEFINED} status code is returned. The caller can always
@code{@value{RPREFIX}NOT_DEFINED} status code is returned. The caller can always
obtain the number of ticks per second (option is
@code{CLOCK_GET_TICKS_PER_SECOND}) and the number of ticks since the
executive was initialized option is @code{CLOCK_GET_TICKS_SINCE_BOOT}).
@code{@value{RPREFIX}CLOCK_GET_TICKS_PER_SECOND}) and the number of ticks since the
executive was initialized option is @code{@value{RPREFIX}CLOCK_GET_TICKS_SINCE_BOOT}).
The data type expected for time_buffer is indicated below:
@ifset is-C
@itemize @bullet
@item @code{CLOCK_GET_TOD} - (rtems_time_of_day *)
@item @code{@value{RPREFIX}CLOCK_GET_TOD} - (rtems_time_of_day *)
@item @code{CLOCK_GET_TIME_VALUE} - (rtems_clock_time_value *)
@item @code{@value{RPREFIX}CLOCK_GET_TIME_VALUE} - (rtems_clock_time_value *)
@item @code{CLOCK_GET_TICKS_SINCE_BOOT} - (rtems_interval *)
@item @code{@value{RPREFIX}CLOCK_GET_TICKS_SINCE_BOOT} - (rtems_interval *)
@item @code{CLOCK_GET_SECONDS_SINCE_EPOCH} - (rtems_interval *)
@item @code{@value{RPREFIX}CLOCK_GET_SECONDS_SINCE_EPOCH} - (rtems_interval *)
@item @code{CLOCK_GET_TICKS_PER_SECOND} - (rtems_interval *)
@item @code{@value{RPREFIX}CLOCK_GET_TICKS_PER_SECOND} - (rtems_interval *)
@end itemize
@end ifset
@ifset is-Ada
@itemize @bullet
@item @code{CLOCK_GET_TOD} - Address of an variable of type RTEMS.Time_Of_Day
@item @code{@value{RPREFIX}CLOCK_GET_TOD} - Address of an variable of type RTEMS.Time_Of_Day
@item @code{CLOCK_GET_TIME_VALUE} - Address of an variable of
@item @code{@value{RPREFIX}CLOCK_GET_TIME_VALUE} - Address of an variable of
type RTEMS.Clock_Time_Value
@item @code{CLOCK_GET_TICKS_SINCE_BOOT} - Address of an variable of
@item @code{@value{RPREFIX}CLOCK_GET_TICKS_SINCE_BOOT} - Address of an variable of
type RTEMS.Interval
@item @code{CLOCK_GET_SECONDS_SINCE_EPOCH} - Address of an variable of
@item @code{@value{RPREFIX}CLOCK_GET_SECONDS_SINCE_EPOCH} - Address of an variable of
type RTEMS.Interval
@item @code{CLOCK_GET_TICKS_PER_SECOND} - Address of an variable of
@item @code{@value{RPREFIX}CLOCK_GET_TICKS_PER_SECOND} - Address of an variable of
type RTEMS.Interval
@end itemize
@@ -441,7 +441,7 @@ procedure Clock_Tick (
@end ifset
@subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - current time obtained successfully
@code{@value{RPREFIX}SUCCESSFUL} - current time obtained successfully
@subheading DESCRIPTION: