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f162bcc31c
* lib-src/profile.c (SYSTIME_INLINE): Define. * nt/config.nt: Sync with autogen/config.in. (_GL_INLINE, _GL_EXTERN_INLINE, _GL_INLINE_HEADER_BEGIN) (_GL_INLINE_HEADER_END): New macros. * src/buffer.h (BUFFER_INLINE): * src/category.h (CATEGORY_INLINE): * src/character.h (CHARACTER_INLINE): * src/charset.h (CHARSET_INLINE): * src/composite.h (COMPOSITE_INLINE): * src/dispextern.h (DISPEXTERN_INLINE): * src/lisp.h (LISP_INLINE): * src/systime.h (SYSTIME_INLINE): New macro, replacing 'static inline' in this header. * src/buffer.h, src/category.h, src/character.h, src/charset.h: * src/composite.h, src/dispextern.h, lisp.h, systime.h: Use INLINE_HEADER_BEGIN, INLINE_HEADER_END. * src/alloc.c (LISP_INLINE): * src/buffer.c (BUFFER_INLINE): * src/category.c (CATEGORY_INLINE): * src/character.c (CHARACTER_INLINE): * src/charset.c (CHARSET_INLINE): * src/composite.c (COMPOSITE_INLINE): * src/dispnew.c (DISPEXTERN_INLINE): * src/sysdep.c (SYSTIME_INLINE): Define to EXTERN_INLINE, so that the corresponding functions are compiled into code. * src/conf_post.h (INLINE, EXTERN_INLINE, INLINE_HEADER_BEGIN) (INLINE_HEADER_END): New macros. * src/lisp.h (PSEUDOVECTOR_FLAG): Now a macro as well as a constant, since it's used in non-static inline functions now.
97 lines
2.4 KiB
C
97 lines
2.4 KiB
C
/* profile.c --- generate periodic events for profiling of Emacs Lisp code.
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Copyright (C) 1992, 1994, 1999, 2001-2012 Free Software Foundation, Inc.
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Author: Boaz Ben-Zvi <boaz@lcs.mit.edu>
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This file is part of GNU Emacs.
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GNU Emacs is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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GNU Emacs is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
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/**
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** To be run as an emacs subprocess. Input string that starts with:
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** 'z' -- resets the watch (to zero).
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** 'p' -- return time (on stdout) as string with format <sec>.<micro-sec>
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** 'q' -- exit.
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**
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** abstraction : a stopwatch
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** operations: reset_watch, get_time
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*/
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#include <config.h>
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#define SYSTIME_INLINE EXTERN_INLINE
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#include <inttypes.h>
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#include <stdio.h>
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#include <intprops.h>
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#include <systime.h>
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static EMACS_TIME TV1;
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static int watch_not_started = 1; /* flag */
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static char time_string[INT_STRLEN_BOUND (uintmax_t) + sizeof "."
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+ LOG10_EMACS_TIME_RESOLUTION];
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/* Reset the stopwatch to zero. */
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static void
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reset_watch (void)
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{
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TV1 = current_emacs_time ();
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watch_not_started = 0;
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}
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/* This call returns the time since the last reset_watch call. The time
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is returned as a string with the format <seconds>.<nanoseconds>
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If reset_watch was not called yet, exit. */
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static char *
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get_time (void)
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{
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EMACS_TIME TV2 = sub_emacs_time (current_emacs_time (), TV1);
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uintmax_t s = EMACS_SECS (TV2);
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int ns = EMACS_NSECS (TV2);
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if (watch_not_started)
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exit (EXIT_FAILURE); /* call reset_watch first ! */
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sprintf (time_string, "%"PRIuMAX".%0*d", s, LOG10_EMACS_TIME_RESOLUTION, ns);
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return time_string;
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}
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int
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main (void)
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{
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int c;
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while ((c = getchar ()) != EOF)
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{
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switch (c)
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{
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case 'z':
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reset_watch ();
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break;
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case 'p':
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puts (get_time ());
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break;
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case 'q':
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exit (EXIT_SUCCESS);
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}
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/* Anything remaining on the line is ignored. */
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while (c != '\n' && c != EOF)
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c = getchar ();
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}
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exit (EXIT_FAILURE);
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}
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/* profile.c ends here */
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