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libs/ck-libs/liveViz3d/stats.h

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/*
Tools for measuring timing and profiling statistics.

Orion Sky Lawlor, olawlor@acm.org, 2004/8/18
*/
#ifndef __OSL_GL_STATS_H
#define __OSL_GL_STATS_H

#if CMK_LIVEVIZ3D_CLIENT /* serial version */
#  include "osl/osl.h"
#else 
#  include "charm.h"
#endif

namespace stats {

#if CMK_LIVEVIZ3D_CLIENT /* serial version */
        inline double time(void) {return osl::time();}
#else
        inline double time(void) {return CkWallTimer();}
#endif

        class op_t {
        public:
                int idx;
        };
        
        enum {op_null=0, op_max=100};
        
        extern int op_len;
        
        op_t time_op(const char *shortName,const char *desc);
        op_t count_op(const char *shortName,const char *desc,const char *units);
        
        class stats {
        public:
                double t[op_max];
                
                stats() {zero();}
                
                void zero(void) {
                        for (int op=0;op<op_len;op++) t[op]=0.0;
                }
                void add(double val,op_t op) {t[op.idx]+=val;}

                double get(op_t op) const {return t[op.idx];}
                void set(double val,op_t op) {t[op.idx]=val;}
                
                void add(const stats &s,double scale=1.0) {
                        for (int op=0;op<op_len;op++) t[op]+=s.t[op]*scale;
                }
                
                void print(FILE *f,const char *what,double scale=1.0,double thresh=0.001) const;
        };
        
        stats *get(void);
        
        op_t swap(op_t op);
        
        class op_sentry {
                op_t prev_op, op;
        public:
                op_sentry(op_t op_) :op(op_) 
                {
                        prev_op=swap(op);
                }
                ~op_sentry() {
                        swap(prev_op);
                }
        };
};


#endif

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