Paul Lipscomb
111 lines
2.3 KiB
C++
111 lines
2.3 KiB
C++
#ifndef _WDL_TIMING2_H_
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#define _WDL_TIMING2_H_
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#if defined(_DEBUG) || defined(WDL_TIMING_ENABLE_FOR_RELEASE)
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#include "time_precise.h"
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#endif
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class wdl_timing_accumulator
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{
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public:
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#if defined(_DEBUG) || defined(WDL_TIMING_ENABLE_FOR_RELEASE)
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wdl_timing_accumulator(const char *name=NULL)
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{
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m_cnt=0;
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m_tot=m_cur=0.0;
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m_name = name ? name : "[unnamed]";
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m_depth = 0;
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}
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~wdl_timing_accumulator()
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{
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Report("final");
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}
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static void _format_big_integer(double usec, char *buf, int buflen)
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{
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char tmp[256];
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#ifdef _MSC_VER
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_snprintf(tmp, sizeof(tmp), "%.0f", usec);
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#else
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snprintf(tmp, sizeof(tmp), "%.0f", usec);
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#endif
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int len = strlen(tmp);
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char *from = tmp, *to = buf;
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if (len*4/3 < buflen)
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{
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while (len--)
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{
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*to++ = *from++;
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if (len && len%3 == 0) *to++ = ',';
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}
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*to = 0;
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}
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else
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{
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lstrcpyn(to, from, buflen);
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}
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}
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void Report(const char *caption=NULL) const
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{
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if (m_cnt)
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{
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const double usec=1000000.0;
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char buf1[256], buf2[256];
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_format_big_integer(m_tot*usec/(double)m_cnt, buf1, sizeof(buf1));
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_format_big_integer(m_tot*usec, buf2, sizeof(buf2));
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wdl_log_force("timing %s%s%s%s: %.0f calls, %s usec/call, %s usec total\n",
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m_name, caption ? " (" : "", caption ? caption : "", caption ? ")" : "",
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(double)m_cnt, buf1, buf2);
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}
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}
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void Begin()
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{
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if (!m_depth++)
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m_cur = time_precise();
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}
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void End()
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{
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WDL_ASSERT(m_depth > 0);
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if (!--m_depth)
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{
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WDL_ASSERT(m_cur != 0.0);
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m_tot += time_precise()-m_cur;
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m_cur=0.0;
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m_cnt++;
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}
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}
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private:
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WDL_INT64 m_cnt;
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double m_tot, m_cur;
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const char *m_name;
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int m_depth;
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#else
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wdl_timing_accumulator(const char *name=NULL) {}
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~wdl_timing_accumulator() {}
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void Report(const char *caption=NULL) {}
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void Begin() {}
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void End() {}
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#endif
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};
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class wdl_timing_accumulator_hold
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{
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public:
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#if defined(_DEBUG) || defined(WDL_TIMING_ENABLE_FOR_RELEASE)
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wdl_timing_accumulator_hold(wdl_timing_accumulator *p) : m_p(p) { if (p) p->Begin(); }
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~wdl_timing_accumulator_hold() { if (m_p) m_p->End(); }
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wdl_timing_accumulator *m_p;
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#else
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wdl_timing_accumulator_hold(wdl_timing_accumulator *p) {}
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#endif
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};
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#endif
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