Mercurial > cpython-lru_cache-weakref

annotate Modules/timing.h @ 5817:48b94de85bf3 legacy-trunk

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Extensive changes by AMK.
author Guido van Rossum <guido@python.org>
date Thu, 17 Jul 1997 16:29:42 +0000
parents af1c2f36dc34
children 1c78d8e87653
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1 /*
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2 * Copyright (c) 1993 George V. Neville-Neil
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3 * All rights reserved.
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4 *
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5 * Redistribution and use in source and binary forms, with or without
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6 * modification, are permitted provided that the following conditions
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7 * are met:
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8 * 1. Redistributions of source code must retain the above copyright
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9 * notice, this list of conditions and the following disclaimer.
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10 * 2. Redistributions in binary form must reproduce the above copyright
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11 * notice, this list of conditions and the following disclaimer in the
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12 * documentation and/or other materials provided with the distribution.
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13 * 3. All advertising materials mentioning features or use of this software
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14 * must display the following acknowledgement:
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15 * This product includes software developed by George V. Neville-Neil
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16 * 4. The name, George Neville-Neil may not be used to endorse or promote
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17 * products derived from this software without specific prior
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18 * written permission.
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19 *
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20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
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24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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30 * SUCH DAMAGE.
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31 */
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32
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33 #ifndef _TIMING_H_
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34 #define _TIMING_H_
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35
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36 #ifdef TIME_WITH_SYS_TIME
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37 #include <sys/time.h>
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38 #include <time.h>
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39 #else /* !TIME_WITH_SYS_TIME */
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40 #ifdef HAVE_SYS_TIME_H
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41 #include <sys/time.h>
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42 #else /* !HAVE_SYS_TIME_H */
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43 #include <time.h>
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44 #endif /* !HAVE_SYS_TIME_H */
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45 #endif /* !TIME_WITH_SYS_TIME */
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46
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47 static struct timeval aftertp, beforetp;
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48
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49 #define BEGINTIMING gettimeofday(&beforetp, NULL)
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50
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51 #define ENDTIMING gettimeofday(&aftertp, NULL); \
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52 if(beforetp.tv_usec > aftertp.tv_usec) \
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53 { \
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54 aftertp.tv_usec += 1000000; \
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55 aftertp.tv_sec--; \
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56 }
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57
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58 #define TIMINGUS (((aftertp.tv_sec - beforetp.tv_sec) * 1000000) + \
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59 (aftertp.tv_usec - beforetp.tv_usec))
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60
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61 #define TIMINGMS (((aftertp.tv_sec - beforetp.tv_sec) * 1000) + \
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62 ((aftertp.tv_usec - beforetp.tv_usec) / 1000))
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63
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64 #define TIMINGS ((aftertp.tv_sec - beforetp.tv_sec) + \
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65 (aftertp.tv_usec - beforetp.tv_usec) / 1000000)
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66
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67 #endif /* _TIMING_H_ */