Hello,
related to my previous post about getting to microsecond values
from APR/mod_perl, I propose to submit to CPAN a module
Apache2::RequestRec::Time which will add four functions (methods)
to Apache2::RequestRec: request_time_hires, request_duration,
request_duration_microseconds, and request_duration_hires.
My main goal is to be able to get value equivalent to custom
log's %D (time taken to serve the request, in microseconds) from
mod_perl, which request_duration_microseconds will do, and I wanted
the set of methods to be a big more complete in case people wanted
similar yet not exact functionality. Initially, I also planned to
have request_time_microseconds but I hit integer overflows as epoch
in microseconds is fairly big number.
I'd appreciate any comments about suitability of such module and/or
its name, purpose, or implementation (for code, see below) before
I do the CPAN submission. Of course, the CPAN distribution will be
complete with Makefile.PL and test.
Thank you.
For the reference, my planned XS code is:
#include <mod_perl.h>
typedef request_rec *Apache2__RequestRec;
MODULE = Apache2::RequestRec::Time PACKAGE = Apache2::RequestRec PREFIX
= mpxs_Apache2__RequestRec_
double
mpxs_Apache2__RequestRec_request_time_hires(r)
Apache2::RequestRec r
CODE:
RETVAL = (double)(r->request_time) / APR_USEC_PER_SEC;
OUTPUT:
RETVAL
long
mpxs_Apache2__RequestRec_request_duration(r)
Apache2::RequestRec r
CODE:
apr_time_t duration = apr_time_now() - r->request_time;
RETVAL = apr_time_sec(duration);
OUTPUT:
RETVAL
double
mpxs_Apache2__RequestRec_request_duration_microseconds(r)
Apache2::RequestRec r
CODE:
RETVAL = (double)(apr_time_now() - r->request_time);
OUTPUT:
RETVAL
double
mpxs_Apache2__RequestRec_request_duration_hires(r)
Apache2::RequestRec r
CODE:
RETVAL = (double)(apr_time_now() - r->request_time) /
APR_USEC_PER_SEC;
OUTPUT:
RETVAL
--
Jan Pazdziora
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
