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/*
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* LIBOIL - Library of Optimized Inner Loops
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* Copyright (c) 2003,2004 David A. Schleef <ds@schleef.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _LIBOIL_PROFILE_H_
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#define _LIBOIL_PROFILE_H_
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#include <liboil/liboilutils.h>
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OIL_BEGIN_DECLS
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#ifdef OIL_ENABLE_UNSTABLE_API
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/**
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* OIL_PROFILE_HIST_LENGTH
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*
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* Internal definition of the number of histogram entries in #OilProfile.
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*/
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#define OIL_PROFILE_HIST_LENGTH 10
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typedef struct _OilProfile OilProfile;
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/**
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* OilProfile:
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*
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* An opaque structure representing profiling information.
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*/
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struct _OilProfile {
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/*< private >*/
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unsigned long start;
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unsigned long stop;
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unsigned long min;
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unsigned long last;
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unsigned long total;
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int n;
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int hist_n;
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unsigned long hist_time[OIL_PROFILE_HIST_LENGTH];
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int hist_count[OIL_PROFILE_HIST_LENGTH];
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};
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IMPORT_C unsigned long oil_profile_stamp(void);
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IMPORT_C void oil_profile_init(OilProfile *prof);
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IMPORT_C void oil_profile_stop_handle(OilProfile *prof);
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IMPORT_C void oil_profile_get_ave_std (OilProfile *prof, double *ave_p, double *std_p);
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/**
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* oil_profile_start:
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* @x: a pointer to an OilProfile structure
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*
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* Starts a profiling run by obtaining a timestamp via oil_profile_stamp()
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* and writing it into @x.
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*/
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#define oil_profile_start(x) do{ \
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(x)->start = oil_profile_stamp(); \
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}while(0)
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/**
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* oil_profile_stop:
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* @x: a pointer to an OilProfile structure
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*
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* Stops a profiling run by obtaining a timestamp via oil_profile_stamp()
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* and writing it into @x. It then calls oil_profile_stop_handle() to
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* handle post-processing of the profiling run.
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*/
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#define oil_profile_stop(x) do{ \
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(x)->stop = oil_profile_stamp(); \
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oil_profile_stop_handle(x); \
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}while(0)
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#endif
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OIL_END_DECLS
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#endif
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