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annotate lib-src/profile.c @ 5697:40fbceabaafd
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| author | Stephen J. Turnbull <stephen@xemacs.org> |
|---|---|
| date | Mon, 24 Dec 2012 03:08:33 +0900 |
| parents | b9167d522a9a |
| children |
| rev | line source |
|---|---|
| 428 | 1 /* profile.c --- generate periodic events for profiling of Emacs Lisp code. |
| 2 Copyright (C) 1992, 1994 Free Software Foundation, Inc. | |
| 2367 | 3 Copyright (C) 2004 Ben Wing. |
| 428 | 4 |
| 5 Author: Boaz Ben-Zvi <boaz@lcs.mit.edu> | |
| 6 | |
|
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061f4f90f874
Convert lib-src/ to GPLv3.
Mike Sperber <sperber@deinprogramm.de>
parents:
2367
diff
changeset
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7 This file is part of XEmacs. |
| 428 | 8 |
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parents:
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9 XEmacs is free software: you can redistribute it and/or modify it |
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061f4f90f874
Convert lib-src/ to GPLv3.
Mike Sperber <sperber@deinprogramm.de>
parents:
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changeset
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10 under the terms of the GNU General Public License as published by the |
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061f4f90f874
Convert lib-src/ to GPLv3.
Mike Sperber <sperber@deinprogramm.de>
parents:
2367
diff
changeset
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11 Free Software Foundation, either version 3 of the License, or (at your |
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061f4f90f874
Convert lib-src/ to GPLv3.
Mike Sperber <sperber@deinprogramm.de>
parents:
2367
diff
changeset
|
12 option) any later version. |
| 428 | 13 |
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061f4f90f874
Convert lib-src/ to GPLv3.
Mike Sperber <sperber@deinprogramm.de>
parents:
2367
diff
changeset
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14 XEmacs is distributed in the hope that it will be useful, but WITHOUT |
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061f4f90f874
Convert lib-src/ to GPLv3.
Mike Sperber <sperber@deinprogramm.de>
parents:
2367
diff
changeset
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15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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061f4f90f874
Convert lib-src/ to GPLv3.
Mike Sperber <sperber@deinprogramm.de>
parents:
2367
diff
changeset
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16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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061f4f90f874
Convert lib-src/ to GPLv3.
Mike Sperber <sperber@deinprogramm.de>
parents:
2367
diff
changeset
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17 for more details. |
| 428 | 18 |
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061f4f90f874
Convert lib-src/ to GPLv3.
Mike Sperber <sperber@deinprogramm.de>
parents:
2367
diff
changeset
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19 You should have received a copy of the GNU General Public License |
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061f4f90f874
Convert lib-src/ to GPLv3.
Mike Sperber <sperber@deinprogramm.de>
parents:
2367
diff
changeset
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20 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 428 | 21 |
| 22 /* Synched up with: FSF 19.28. */ | |
| 23 /* #### Not sure if this is needed for XEmacs. */ | |
| 24 | |
| 25 /** | |
| 26 ** To be run as an emacs process. Input string that starts with: | |
| 27 ** 'z' -- resets the watch (to zero). | |
| 28 ** 'p' -- return time (on stdout) as string with format <sec>.<micro-sec> | |
| 29 ** 'q' -- exit. | |
| 30 ** | |
| 31 ** abstraction : a stopwatch | |
| 32 ** operations: reset_watch, get_time | |
| 33 */ | |
| 438 | 34 #include <config.h> |
| 428 | 35 #include <stdio.h> |
| 36 #include <stdlib.h> | |
| 37 #include "../src/systime.h" | |
| 38 | |
| 39 static struct timeval TV1, TV2; | |
| 40 static int watch_not_started = 1; /* flag */ | |
| 41 static char time_string[30]; | |
| 42 | |
| 442 | 43 #ifdef WIN32_NATIVE |
| 428 | 44 #include <sys/timeb.h> |
| 45 /* Emulate gettimeofday (Ulrich Leodolter, 1/11/95). */ | |
| 46 void | |
| 47 gettimeofday (struct timeval *tv, struct timezone *tz) | |
| 48 { | |
| 49 struct _timeb tb; | |
| 50 _ftime (&tb); | |
| 51 | |
| 52 tv->tv_sec = tb.time; | |
| 53 tv->tv_usec = tb.millitm * 1000L; | |
| 54 if (tz) | |
| 55 { | |
| 56 tz->tz_minuteswest = tb.timezone; /* minutes west of Greenwich */ | |
| 57 tz->tz_dsttime = tb.dstflag; /* type of dst correction */ | |
| 58 } | |
| 59 } | |
| 60 #endif | |
| 61 | |
| 62 /* Reset the stopwatch to zero. */ | |
| 63 | |
| 64 static void | |
| 65 reset_watch (void) | |
| 66 { | |
| 67 EMACS_GET_TIME (TV1); | |
| 68 watch_not_started = 0; | |
| 69 } | |
| 70 | |
| 71 /* This call returns the time since the last reset_watch call. The time | |
| 72 is returned as a string with the format <seconds>.<micro-seconds> | |
| 73 If reset_watch was not called yet, exit. */ | |
| 74 | |
| 75 static char * | |
| 76 get_time (void) | |
| 77 { | |
| 78 if (watch_not_started) | |
| 79 exit (1); /* call reset_watch first ! */ | |
| 80 EMACS_GET_TIME (TV2); | |
| 81 if (TV1.tv_usec > TV2.tv_usec) | |
| 82 { | |
| 83 TV2.tv_usec += 1000000; | |
| 84 TV2.tv_sec--; | |
| 85 } | |
| 86 sprintf (time_string, "%lu.%06lu", | |
| 87 (unsigned long) TV2.tv_sec - TV1.tv_sec, | |
| 88 (unsigned long) TV2.tv_usec - TV1.tv_usec); | |
| 89 return time_string; | |
| 90 } | |
| 91 | |
| 92 int | |
| 2367 | 93 main (int argc, char **argv) |
| 428 | 94 { |
| 95 int c; | |
| 96 while ((c = getchar ()) != EOF) | |
| 97 { | |
| 98 switch (c) | |
| 99 { | |
| 100 case 'z': | |
| 101 reset_watch (); | |
| 102 break; | |
| 103 case 'p': | |
| 104 puts (get_time ()); | |
| 105 break; | |
| 106 case 'q': | |
| 107 exit (0); | |
| 108 } | |
| 109 /* Anything remaining on the line is ignored. */ | |
| 110 while (c != '\n' && c != EOF) | |
| 111 c = getchar (); | |
| 112 } | |
| 113 return 1; | |
| 114 } |