Statistics API.

Data Structures

struct  rpmsw_s
struct  rpmop_s
 Cumulative statistics for an operation. More...

Typedefs

typedef unsigned long int rpmtime_t
typedef struct rpmsw_srpmsw
typedef struct rpmop_srpmop

Functions

rpmsw rpmswNow (rpmsw sw)
 Return benchmark time stamp.
rpmtime_t rpmswDiff (rpmsw end, rpmsw begin)
 Return benchmark time stamp difference.
rpmtime_t rpmswInit (void)
 Return benchmark time stamp overhead.
int rpmswEnter (rpmop op, ssize_t rc)
 Enter timed operation.
rpmtime_t rpmswExit (rpmop op, ssize_t rc)
 Exit timed operation.
rpmtime_t rpmswAdd (rpmop to, rpmop from)
 Sum statistic counters.
rpmtime_t rpmswSub (rpmop to, rpmop from)
 Subtract statistic counters.

Typedef Documentation

typedef struct rpmop_s* rpmop

Definition at line 25 of file rpmsw.h.

typedef struct rpmsw_s* rpmsw

Definition at line 21 of file rpmsw.h.

typedef unsigned long int rpmtime_t

Definition at line 17 of file rpmsw.h.


Function Documentation

rpmtime_t rpmswAdd ( rpmop  to,
rpmop  from 
)

Sum statistic counters.

Parameters:
to result statistics
from operation statistics
Returns:
cumulative usecs for operation
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
int rpmswEnter ( rpmop  op,
ssize_t  rc 
)

Enter timed operation.

Parameters:
op operation statistics
rc -1 clears usec counter
Returns:
0 always
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
rpmtime_t rpmswInit ( void   ) 

Return benchmark time stamp overhead.

Returns:
overhead in micro-seconds
rpmsw rpmswNow ( rpmsw  sw  ) 

Return benchmark time stamp.

Parameters:
*sw time stamp
Returns:
0 on success
rpmtime_t rpmswSub ( rpmop  to,
rpmop  from 
)

Subtract statistic counters.

Parameters:
to result statistics
from operation statistics
Returns:
cumulative usecs for operation

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