cpc_event_diff(3CPCPU Performance Counters Library Functiocpc_event_diff(3CPC)NAME
cpc_event_diff, cpc_event_accum - simple difference and accumulate
operations
SYNOPSIS
cc [ flag... ] file... −lcpc [ library... ]
#include <libcpc.h>
void cpc_event_accum(cpc_event_t *accum, cpc_event_t *event);
void cpc_event_diff(cpc_event_t *diff, cpc_event_t *after, cpc_event_t
*before);
DESCRIPTION
The cpc_event_accum() and cpc_event_diff() functions perform common
accumulate and difference operations on cpc_event(3CPC) data struc‐
tures. Use of these functions increases program portability, since
structure members are not referenced directly .
cpc_event_accum()
The cpc_event_accum() function adds the ce_pic fields of event into the
corresponding fields of accum. The ce_hrt field of accum is set to the
later of the times in event and accum.
SPARC:
The function adds the contents of the ce_tick field of event into the
corresponding field of accum.
x86:
The function adds the contents of the ce_tsc field of event into the
corresponding field of accum.
cpc_event_diff()
The cpc_event_diff() function places the difference between the ce_pic
fields of after and before and places them in the corresponding field
of diff. The ce_hrt field of diff is set to the ce_hrt field of after.
SPARC:
Additionally, the function computes the difference between the ce_tick
fields of after and before, and places it in the corresponding field of
diff.
x86:
Additionally, the function computes the difference between the ce_tsc
fields of after and before, and places it in the corresponding field of
diff.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Obsolete │
├─────────────────────────────┼─────────────────────────────┤
│MT-Level │MT-Safe │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOcpc(3CPC), cpc_buf_add(3CPC), cpc_buf_sub(3CPC), cpc_event(3CPC),
libcpc(3LIB), attributes(5)NOTES
The cpc_event_accum() and cpc_event_diff() functions exist for binary
compatibility only. Source containing these functions will not compile.
These functions are obsolete and might be removed in a future release.
Applications should use cpc_buf_add(3CPC) and cpc_buf_sub(3CPC)
instead.
SunOS 5.10 28 Mar 2005 cpc_event_diff(3CPC)
