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authorSebastian Huber <sebastian.huber@embedded-brains.de>2013-07-23 09:48:38 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2013-07-23 15:12:51 +0200
commit98c7eacaaa318ef3e5b5a878d8bedebc5faf5a22 (patch)
tree5a9bbb54b360b20217b2df68e2088a9a15a21611 /cpukit/sapi/include/rtems
parentsapi: Merge CBS API into one file (diff)
downloadrtems-98c7eacaaa318ef3e5b5a878d8bedebc5faf5a22.tar.bz2
sapi: Merge timespec API into one file
Diffstat (limited to 'cpukit/sapi/include/rtems')
-rw-r--r--cpukit/sapi/include/rtems/timespec.h268
1 files changed, 261 insertions, 7 deletions
diff --git a/cpukit/sapi/include/rtems/timespec.h b/cpukit/sapi/include/rtems/timespec.h
index b67e95c2d3..e588c5b789 100644
--- a/cpukit/sapi/include/rtems/timespec.h
+++ b/cpukit/sapi/include/rtems/timespec.h
@@ -20,6 +20,10 @@
#include <rtems/score/timespec.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
+
/**
* @defgroup TimespecAPI Timespec
*
@@ -31,15 +35,265 @@
*
*/
-#include <stdbool.h> /* bool */
-#include <stdint.h> /* uint32_t */
-#include <time.h> /* struct timespec */
+/**
+ * @brief Is timespec valid
+ *
+ * This method determines the validity of a timespec.
+ *
+ * @param[in] time is the timespec instance to validate.
+ *
+ * @retval true The timespec is valid.
+ * @retval false The timespec is not valid.
+ */
+RTEMS_INLINE_ROUTINE bool rtems_timespec_is_valid(
+ const struct timespec *time
+)
+{
+ return _Timespec_Is_valid(time);
+}
-#ifdef __cplusplus
-extern "C" {
-#endif
+/**
+ * @brief Timespec less than operator.
+ *
+ * This method is the less than operator for timespecs.
+ *
+ * @param[in] lhs is the left hand side timespec
+ * @param[in] rhs is the right hand side timespec
+ *
+ * @retval true @a lhs is less than @a rhs.
+ * @retval false @a lhs is not less than @a rhs.
+ *
+ */
+RTEMS_INLINE_ROUTINE bool rtems_timespec_less_than(
+ const struct timespec *lhs,
+ const struct timespec *rhs
+)
+{
+ return _Timespec_Less_than(lhs,rhs);
+}
+
+/**
+ * @brief Add to a timespec.
+ *
+ * This routine adds two timespecs. The second argument is added
+ * to the first.
+ *
+ * @param[in] time is the base time to be added to
+ * @param[in] add is the timespec to add to the first argument
+ *
+ * @return This method returns the number of seconds @a time increased by.
+ */
+RTEMS_INLINE_ROUTINE uint32_t rtems_timespec_add_to(
+ struct timespec *time,
+ const struct timespec *add
+)
+{
+ return _Timespec_Add_to(time,add);
+}
+
+/**
+ * @brief Convert timespec to number of ticks.
+ *
+ * This routine convert the @a time timespec to the corresponding number
+ * of clock ticks.
+ *
+ * @param[in] time is the time to be converted
+ *
+ * @return This method returns the number of ticks computed.
+ */
+RTEMS_INLINE_ROUTINE uint32_t rtems_timespec_to_ticks(
+ const struct timespec *time
+)
+{
+ return _Timespec_To_ticks(time);
+}
+
+/**
+ * @brief Convert ticks to timespec.
+ *
+ * This routine converts the @a ticks value to the corresponding
+ * timespec format @a time.
+ *
+ * @param[in] time is the timespec format time result
+ * @param[in] ticks is the number of ticks to convert
+ */
+
+RTEMS_INLINE_ROUTINE void rtems_timespec_from_ticks(
+ uint32_t ticks,
+ struct timespec *time
+)
+{
+ _Timespec_From_ticks(ticks,time);
+}
+
+/**
+ * @brief Subtract two timespec.
+ *
+ * This routine subtracts two timespecs. @a result is set to
+ * @a end - @a start.
+ *
+ * @param[in] start is the starting time
+ * @param[in] end is the ending time
+ * @param[in] result is the difference between starting and ending time.
+ *
+ * @return This method fills in @a result.
+ */
+RTEMS_INLINE_ROUTINE void rtems_timespec_subtract(
+ const struct timespec *start,
+ const struct timespec *end,
+ struct timespec *result
+)
+{
+ _Timespec_Subtract(start,end,result);
+}
+
+/**
+ * @brief Divide timespec by integer.
+ *
+ * This routine divides a timespec by an integer value. The expected
+ * use is to assist in benchmark calculations where you typically
+ * divide a duration by a number of iterations.
+ *
+ * @param[in] time is the total
+ * @param[in] iterations is the number of iterations
+ * @param[in] result is the average time.
+ *
+ * @return This method fills in @a result.
+ */
+RTEMS_INLINE_ROUTINE void rtems_timespec_divide_by_integer(
+ const struct timespec *time,
+ uint32_t iterations,
+ struct timespec *result
+)
+{
+ _Timespec_Divide_by_integer(time,iterations,result);
+}
+
+/**
+ * @brief Divide timespec.
+ *
+ * This routine divides a timespec by another timespec. The
+ * intended use is for calculating percentages to three decimal points.
+ *
+ * @param[in] lhs is the left hand number
+ * @param[in] rhs is the right hand number
+ * @param[in] ival_percentage is the integer portion of the average
+ * @param[in] fval_percentage is the thousandths of percentage
+ *
+ * @return This method fills in @a result.
+ */
+RTEMS_INLINE_ROUTINE void rtems_timespec_divide(
+ const struct timespec *lhs,
+ const struct timespec *rhs,
+ uint32_t *ival_percentage,
+ uint32_t *fval_percentage
+)
+{
+ _Timespec_Divide(lhs,rhs,ival_percentage,fval_percentage);
+}
+
+/**
+ * @brief Set timespec to seconds nanosecond.
+ *
+ * This method sets the timespec to the specified seconds and nanoseconds
+ * value.
+ *
+ * @param[in] _time points to the timespec instance to validate.
+ * @param[in] _seconds is the seconds portion of the timespec
+ * @param[in] _nanoseconds is the nanoseconds portion of the timespec
+ */
+RTEMS_INLINE_ROUTINE void rtems_timespec_set(
+ struct timespec *_time,
+ time_t _seconds,
+ uint32_t _nanoseconds
+)
+{
+ _Timespec_Set( _time, _seconds, _nanoseconds );
+}
+
+/**
+ * @brief Zero timespec.
+ *
+ * This method sets the timespec to zero.
+ * value.
+ *
+ * @param[in] _time points to the timespec instance to zero.
+ */
+RTEMS_INLINE_ROUTINE void rtems_timespec_zero(
+ struct timespec *_time
+)
+{
+ _Timespec_Set_to_zero( _time );
+}
+
+/**
+ * @brief Get seconds portion of timespec.
+ *
+ * This method returns the seconds portion of the specified timespec
+ *
+ * @param[in] _time points to the timespec
+ *
+ * @return The seconds portion of @a _time.
+ */
+RTEMS_INLINE_ROUTINE time_t rtems_timespec_get_seconds(
+ struct timespec *_time
+)
+{
+ return _Timespec_Get_seconds( _time );
+}
+
+/**
+ * @brief Get nanoseconds portion of timespec.
+ *
+ * This method returns the nanoseconds portion of the specified timespec
+ *
+ * @param[in] _time points to the timespec
+ *
+ * @return The nanoseconds portion of @a _time.
+ */
+RTEMS_INLINE_ROUTINE uint32_t rtems_timespec_get_nanoseconds(
+ struct timespec *_time
+)
+{
+ return _Timespec_Get_nanoseconds( _time );
+}
-#include <rtems/timespec.inl>
+/**
+ * @brief Timespec greater than operator.
+ *
+ * This method is the greater than operator for timespecs.
+ *
+ * @param[in] _lhs is the left hand side timespec
+ * @param[in] _rhs is the right hand side timespec
+ *
+ * @retval true @a _lhs is greater than @a _rhs.
+ * @retval false @a _lhs is not greater than @a _rhs.
+ */
+RTEMS_INLINE_ROUTINE bool rtems_timespec_greater_than(
+ const struct timespec *_lhs,
+ const struct timespec *_rhs
+)
+{
+ return _Timespec_Greater_than( _lhs, _rhs );
+}
+/**
+ * @brief Timespec equal to Operator
+ *
+ * This method is the is equal to than operator for timespecs.
+ *
+ * @param[in] lhs is the left hand side timespec
+ * @param[in] rhs is the right hand side timespec
+ *
+ * @retval true @a lhs is equal to @a rhs.
+ * @retval false @a lhs is not equal to @a rhs.
+ */
+RTEMS_INLINE_ROUTINE bool rtems_timespec_equal_to(
+ const struct timespec *lhs,
+ const struct timespec *rhs
+)
+{
+ return _Timespec_Equal_to( lhs, rhs);
+}
/** @} */