Mercurial > cpython-lru_cache-weakref

annotate Modules/timing.h @ 16798:258dcafe2d0b legacy-trunk

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Gustavo Niemeyer <niemeyer@conectiva.com>: Fixed recno support (keys are integers rather than strings). Work around DB bug that cause stdin to be closed by rnopen() when the DB file needed to exist but did not (no longer segfaults). This closes SF tracker patch #403445. Also wrapped some long lines and added whitespace around operators -- FLD.
author Fred Drake <fdrake@acm.org>
date Tue, 27 Feb 2001 18:56:46 +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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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_ */