Statistics API.

Statistics API. More...

Collaboration diagram for Statistics API.:

Data Structures
struct	rpmsw_s
struct	rpmop_s

Typedefs
typedef unsigned long int	rpmtime_t
typedef struct rpmsw_s *	rpmsw
typedef struct rpmop_s *	rpmop

Functions
rpmsw	rpmswNow (rpmsw sw)
rpmtime_t	rpmswDiff (rpmsw end, rpmsw begin)
rpmtime_t	rpmswInit (void)
int	rpmswEnter (rpmop op, ssize_t rc)
rpmtime_t	rpmswExit (rpmop op, ssize_t rc)
rpmtime_t	rpmswAdd (rpmop to, rpmop from)
rpmtime_t	rpmswSub (rpmop to, rpmop from)

Detailed Description

Statistics API.

Function Documentation

rpmswAdd()

rpmtime_t rpmswAdd	(	rpmop	to,
		rpmop	from
	)

Sum statistic counters.

Parameters

to	result statistics
from	operation statistics

Returns

cumulative usecs for operation

rpmswDiff()

rpmtime_t rpmswDiff	(	rpmsw	end,
		rpmsw	begin
	)

Return benchmark time stamp difference.

Parameters

*end	end time stamp
*begin	begin time stamp

Returns

difference in micro-seconds

rpmswEnter()

int rpmswEnter	(	rpmop	op,
		ssize_t	rc
	)

Enter timed operation.

Parameters

op	operation statistics
rc	-1 clears usec counter

Returns

0 always

rpmswExit()

rpmtime_t rpmswExit	(	rpmop	op,
		ssize_t	rc
	)

Exit timed operation.

Parameters

op	operation statistics
rc	per-operation data (e.g. bytes transferred)

Returns

cumulative usecs for operation

rpmswInit()

rpmtime_t rpmswInit

(

void

)

Return benchmark time stamp overhead.

Returns

overhead in micro-seconds

rpmswNow()

rpmsw rpmswNow

(

rpmsw

sw

)

Return benchmark time stamp.

Parameters

*sw	time stamp

Returns

0 on success

rpmswSub()

rpmtime_t rpmswSub	(	rpmop	to,
		rpmop	from
	)

Subtract statistic counters.

Parameters

to	result statistics
from	operation statistics

Returns

cumulative usecs for operation