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