102 lines
2.0 KiB
C
102 lines
2.0 KiB
C
#ifndef H_RPMSW
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#define H_RPMSW
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/** \ingroup rpmio
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* \file rpmio/rpmsw.h
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** \ingroup rpmsw
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*/
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typedef unsigned long int rpmtime_t;
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/** \ingroup rpmsw
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*/
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typedef struct rpmsw_s * rpmsw;
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/** \ingroup rpmsw
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*/
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typedef struct rpmop_s * rpmop;
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/** \ingroup rpmsw
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*/
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struct rpmsw_s {
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union {
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struct timeval tv;
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unsigned long long int ticks;
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unsigned long int tocks[2];
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} u;
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};
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/** \ingroup rpmsw
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* Cumulative statistics for an operation.
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*/
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struct rpmop_s {
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struct rpmsw_s begin; /*!< Starting time stamp. */
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int count; /*!< Number of operations. */
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size_t bytes; /*!< Number of bytes transferred. */
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rpmtime_t usecs; /*!< Number of ticks. */
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};
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/** \ingroup rpmsw
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* Return benchmark time stamp.
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* @param *sw time stamp
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* @return 0 on success
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*/
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rpmsw rpmswNow(rpmsw sw);
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/** \ingroup rpmsw
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* Return benchmark time stamp difference.
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* @param *end end time stamp
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* @param *begin begin time stamp
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* @return difference in micro-seconds
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*/
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rpmtime_t rpmswDiff(rpmsw end, rpmsw begin);
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/** \ingroup rpmsw
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* Return benchmark time stamp overhead.
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* @return overhead in micro-seconds
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*/
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rpmtime_t rpmswInit(void);
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/** \ingroup rpmsw
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* Enter timed operation.
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* @param op operation statistics
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* @param rc -1 clears usec counter
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* @return 0 always
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*/
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int rpmswEnter(rpmop op, ssize_t rc);
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/** \ingroup rpmsw
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* Exit timed operation.
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* @param op operation statistics
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* @param rc per-operation data (e.g. bytes transferred)
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* @return cumulative usecs for operation
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*/
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rpmtime_t rpmswExit(rpmop op, ssize_t rc);
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/** \ingroup rpmsw
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* Sum statistic counters.
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* @param to result statistics
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* @param from operation statistics
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* @return cumulative usecs for operation
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*/
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rpmtime_t rpmswAdd(rpmop to, rpmop from);
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/** \ingroup rpmsw
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* Subtract statistic counters.
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* @param to result statistics
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* @param from operation statistics
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* @return cumulative usecs for operation
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*/
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rpmtime_t rpmswSub(rpmop to, rpmop from);
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#ifdef __cplusplus
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}
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#endif
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#endif /* H_RPMSW */
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