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authorPaul Eggert2011-02-07 23:05:03 -0800
committerPaul Eggert2011-02-07 23:05:03 -0800
commit79ab4b7f0e69ac1d76186346c33187b1fb02ff02 (patch)
tree38948150fa2119df0765c9004a27011caa9f3f50 /src
parent226590f8d1247314abf913cc1bc77621f8a5bca9 (diff)
downloademacs-79ab4b7f0e69ac1d76186346c33187b1fb02ff02.tar.gz
emacs-79ab4b7f0e69ac1d76186346c33187b1fb02ff02.zip
Import getloadavg module from gnulib.
Diffstat (limited to 'src')
-rw-r--r--src/ChangeLog10
-rw-r--r--src/config.in12
-rw-r--r--src/deps.mk1
-rw-r--r--src/getloadavg.c1037
-rw-r--r--src/lisp.h5
-rw-r--r--src/s/freebsd.h2
-rw-r--r--src/s/netbsd.h3
7 files changed, 22 insertions, 1048 deletions
diff --git a/src/ChangeLog b/src/ChangeLog
index 24ec9ce43cd..72d6c49592a 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,13 @@
12011-02-08 Paul Eggert <eggert@cs.ucla.edu>
2
3 Import getloadavg module from gnulib.
4 * deps.mk (getloadavg.o): Remove; gnulib now does this.
5 * lisp.h (getloadavg) [!defined HAVE_GETLOADAVG]: Remove; gnulib
6 now does this.
7 * src/s/freebsd.h (HAVE_GETLOADAVG): Remove; gnulib now does this.
8 * src/s/netbsd.h (HAVE_GETLOADAVG): Likewise.
9 * config.in: Regenerate.
10
12011-02-07 Paul Eggert <eggert@cs.ucla.edu> 112011-02-07 Paul Eggert <eggert@cs.ucla.edu>
2 12
3 conform to C89 pointer rules 13 conform to C89 pointer rules
diff --git a/src/config.in b/src/config.in
index 729c598a445..20d5d165d7b 100644
--- a/src/config.in
+++ b/src/config.in
@@ -408,6 +408,9 @@ along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
408/* Define to 1 if using libotf. */ 408/* Define to 1 if using libotf. */
409#undef HAVE_LIBOTF 409#undef HAVE_LIBOTF
410 410
411/* Define to 1 if you have the `perfstat' library (-lperfstat). */
412#undef HAVE_LIBPERFSTAT
413
411/* Define to 1 if you have the <libpng/png.h> header file. */ 414/* Define to 1 if you have the <libpng/png.h> header file. */
412#undef HAVE_LIBPNG_PNG_H 415#undef HAVE_LIBPNG_PNG_H
413 416
@@ -558,6 +561,9 @@ along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
558/* Define to 1 if you have the `random' function. */ 561/* Define to 1 if you have the `random' function. */
559#undef HAVE_RANDOM 562#undef HAVE_RANDOM
560 563
564/* Define to 1 if you have the <random.h> header file. */
565#undef HAVE_RANDOM_H
566
561/* Define to 1 if you have the `recvfrom' function. */ 567/* Define to 1 if you have the `recvfrom' function. */
562#undef HAVE_RECVFROM 568#undef HAVE_RECVFROM
563 569
@@ -672,6 +678,9 @@ along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
672/* Define to 1 if you have the `sysinfo' function. */ 678/* Define to 1 if you have the `sysinfo' function. */
673#undef HAVE_SYSINFO 679#undef HAVE_SYSINFO
674 680
681/* Define to 1 if you have the <sys/loadavg.h> header file. */
682#undef HAVE_SYS_LOADAVG_H
683
675/* Define to 1 if you have the <sys/mman.h> header file. */ 684/* Define to 1 if you have the <sys/mman.h> header file. */
676#undef HAVE_SYS_MMAN_H 685#undef HAVE_SYS_MMAN_H
677 686
@@ -889,6 +898,9 @@ along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
889/* Define to 1 if you are using NS windowing under GNUstep. */ 898/* Define to 1 if you are using NS windowing under GNUstep. */
890#undef NS_IMPL_GNUSTEP 899#undef NS_IMPL_GNUSTEP
891 900
901/* Define to 1 if the nlist n_name member is a pointer */
902#undef N_NAME_POINTER
903
892/* Define if the C compiler is the linker. */ 904/* Define if the C compiler is the linker. */
893#undef ORDINARY_LINK 905#undef ORDINARY_LINK
894 906
diff --git a/src/deps.mk b/src/deps.mk
index e8ff3dd592e..3cb69bab2d8 100644
--- a/src/deps.mk
+++ b/src/deps.mk
@@ -115,7 +115,6 @@ fringe.o: fringe.c dispextern.h nsgui.h frame.h window.h buffer.h termhooks.h \
115ftfont.o: ftfont.c dispextern.h frame.h character.h charset.h composite.h \ 115ftfont.o: ftfont.c dispextern.h frame.h character.h charset.h composite.h \
116 font.h lisp.h $(config_h) blockinput.h atimer.h systime.h coding.h \ 116 font.h lisp.h $(config_h) blockinput.h atimer.h systime.h coding.h \
117 fontset.h ccl.h ftfont.h globals.h 117 fontset.h ccl.h ftfont.h globals.h
118getloadavg.o: getloadavg.c $(config_h)
119gnutls.o: gnutls.c gnutls.h process.h ../lib/unistd.h \ 118gnutls.o: gnutls.c gnutls.h process.h ../lib/unistd.h \
120 lisp.h globals.h $(config_h) 119 lisp.h globals.h $(config_h)
121gtkutil.o: gtkutil.c gtkutil.h xterm.h lisp.h frame.h lisp.h $(config_h) \ 120gtkutil.o: gtkutil.c gtkutil.h xterm.h lisp.h frame.h lisp.h $(config_h) \
diff --git a/src/getloadavg.c b/src/getloadavg.c
deleted file mode 100644
index d9c24717b79..00000000000
--- a/src/getloadavg.c
+++ /dev/null
@@ -1,1037 +0,0 @@
1/* Get the system load averages.
2 Copyright (C) 1985, 1986, 1987, 1988, 1989, 1991, 1992, 1993, 1994, 1995,
3 1997, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
4 Free Software Foundation, Inc.
5
6 NOTE: The canonical source of this file is maintained with gnulib.
7 Bugs can be reported to bug-gnulib@gnu.org.
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2, or (at your option)
12 any later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
22 USA. */
23
24/* Compile-time symbols that this file uses:
25
26 HAVE_PSTAT_GETDYNAMIC Define this if your system has the
27 pstat_getdynamic function. I think it
28 is unique to HPUX9. The best way to get the
29 definition is through the AC_FUNC_GETLOADAVG
30 macro that comes with autoconf 2.13 or newer.
31 If that isn't an option, then just put
32 AC_CHECK_FUNCS(pstat_getdynamic) in your
33 configure.in file.
34 FIXUP_KERNEL_SYMBOL_ADDR() Adjust address in returned struct nlist.
35 KERNEL_FILE Pathname of the kernel to nlist.
36 LDAV_CVT() Scale the load average from the kernel.
37 Returns a double.
38 LDAV_SYMBOL Name of kernel symbol giving load average.
39 LOAD_AVE_TYPE Type of the load average array in the kernel.
40 Must be defined unless one of
41 apollo, DGUX, NeXT, or UMAX is defined;
42 or we have libkstat;
43 otherwise, no load average is available.
44 HAVE_NLIST_H nlist.h is available. NLIST_STRUCT defaults
45 to this.
46 NLIST_STRUCT Include nlist.h, not a.out.h, and
47 the nlist n_name element is a pointer,
48 not an array.
49 HAVE_STRUCT_NLIST_N_UN_N_NAME `n_un.n_name' is member of `struct nlist'.
50 LINUX_LDAV_FILE [__linux__]: File containing load averages.
51 HAVE_LOCALE_H locale.h is available.
52 HAVE_SETLOCALE The `setlocale' function is available.
53
54 Specific system predefines this file uses, aside from setting
55 default values if not emacs:
56
57 apollo
58 BSD Real BSD, not just BSD-like.
59 convex
60 DGUX
61 eunice UNIX emulator under VMS.
62 hpux
63 __MSDOS__ No-op for MSDOS.
64 NeXT
65 sgi
66 sequent Sequent Dynix 3.x.x (BSD)
67 _SEQUENT_ Sequent DYNIX/ptx 1.x.x (SYSV)
68 sony_news NEWS-OS (works at least for 4.1C)
69 UMAX
70 UMAX4_3
71 VMS
72 WINDOWS32 No-op for Windows95/NT.
73 __linux__ Linux: assumes /proc filesystem mounted.
74 Support from Michael K. Johnson.
75 __NetBSD__ NetBSD: assumes /kern filesystem mounted.
76
77 In addition, to avoid nesting many #ifdefs, we internally set
78 LDAV_DONE to indicate that the load average has been computed.
79
80 We also #define LDAV_PRIVILEGED if a program will require
81 special installation to be able to call getloadavg. */
82
83/* This should always be first. */
84#ifdef HAVE_CONFIG_H
85# include <config.h>
86#endif
87
88#include <sys/types.h>
89
90/* Both the Emacs and non-Emacs sections want this. Some
91 configuration files' definitions for the LOAD_AVE_CVT macro (like
92 sparc.h's) use macros like FSCALE, defined here. */
93#if defined (unix) || defined (__unix)
94# include <sys/param.h>
95#endif
96
97
98/* Exclude all the code except the test program at the end
99 if the system has its own `getloadavg' function.
100
101 The declaration of `errno' is needed by the test program
102 as well as the function itself, so it comes first. */
103
104#include <errno.h>
105
106#ifndef errno
107extern int errno;
108#endif
109
110#ifdef HAVE_LOCALE_H
111# include <locale.h>
112#endif
113#ifndef HAVE_SETLOCALE
114# define setlocale(Category, Locale) /* empty */
115#endif
116
117#ifndef HAVE_GETLOADAVG
118
119/* The existing Emacs configuration files define a macro called
120 LOAD_AVE_CVT, which accepts a value of type LOAD_AVE_TYPE, and
121 returns the load average multiplied by 100. What we actually want
122 is a macro called LDAV_CVT, which returns the load average as an
123 unmultiplied double.
124
125 For backwards compatibility, we'll define LDAV_CVT in terms of
126 LOAD_AVE_CVT, but future machine config files should just define
127 LDAV_CVT directly. */
128
129# if !defined(LDAV_CVT) && defined(LOAD_AVE_CVT)
130# define LDAV_CVT(n) (LOAD_AVE_CVT (n) / 100.0)
131# endif
132
133# if !defined (BSD) && defined (ultrix)
134/* Ultrix behaves like BSD on Vaxen. */
135# define BSD
136# endif
137
138# ifdef NeXT
139/* NeXT in the 2.{0,1,2} releases defines BSD in <sys/param.h>, which
140 conflicts with the definition understood in this file, that this
141 really is BSD. */
142# undef BSD
143
144/* NeXT defines FSCALE in <sys/param.h>. However, we take FSCALE being
145 defined to mean that the nlist method should be used, which is not true. */
146# undef FSCALE
147# endif
148
149/* Same issues as for NeXT apply to the HURD-based GNU system. */
150# ifdef __GNU__
151# undef BSD
152# undef FSCALE
153# endif /* __GNU__ */
154
155/* Set values that are different from the defaults, which are
156 set a little farther down with #ifndef. */
157
158
159/* Some shorthands. */
160
161# if defined (HPUX) && !defined (hpux)
162# define hpux
163# endif
164
165# if defined (__hpux) && !defined (hpux)
166# define hpux
167# endif
168
169# if defined (__sun) && !defined (sun)
170# define sun
171# endif
172
173# if defined(hp300) && !defined(hpux)
174# define MORE_BSD
175# endif
176
177# if defined(ultrix) && defined(mips)
178# define decstation
179# endif
180
181# if defined (__SVR4) && !defined (SVR4)
182# define SVR4
183# endif
184
185# if (defined(sun) && defined(SVR4)) || defined (SOLARIS2)
186# define SUNOS_5
187# endif
188
189# if defined (__osf__) && (defined (__alpha) || defined (__alpha__))
190# define OSF_ALPHA
191# include <sys/mbuf.h>
192# include <sys/socket.h>
193# include <net/route.h>
194# include <sys/table.h>
195# endif
196
197# if defined (__osf__) && (defined (mips) || defined (__mips__))
198# define OSF_MIPS
199# include <sys/table.h>
200# endif
201
202/* UTek's /bin/cc on the 4300 has no architecture specific cpp define by
203 default, but _MACH_IND_SYS_TYPES is defined in <sys/types.h>. Combine
204 that with a couple of other things and we'll have a unique match. */
205# if !defined (tek4300) && defined (unix) && defined (m68k) && defined (mc68000) && defined (mc68020) && defined (_MACH_IND_SYS_TYPES)
206# define tek4300 /* Define by emacs, but not by other users. */
207# endif
208
209
210/* VAX C can't handle multi-line #ifs, or lines longer than 256 chars. */
211# ifndef LOAD_AVE_TYPE
212
213# ifdef MORE_BSD
214# define LOAD_AVE_TYPE long
215# endif
216
217# ifdef sun
218# define LOAD_AVE_TYPE long
219# endif
220
221# ifdef decstation
222# define LOAD_AVE_TYPE long
223# endif
224
225# ifdef _SEQUENT_
226# define LOAD_AVE_TYPE long
227# endif
228
229# ifdef sgi
230# define LOAD_AVE_TYPE long
231# endif
232
233# ifdef SVR4
234# define LOAD_AVE_TYPE long
235# endif
236
237# ifdef sony_news
238# define LOAD_AVE_TYPE long
239# endif
240
241# ifdef sequent
242# define LOAD_AVE_TYPE long
243# endif
244
245# ifdef OSF_ALPHA
246# define LOAD_AVE_TYPE long
247# endif
248
249# if defined (ardent) && defined (titan)
250# define LOAD_AVE_TYPE long
251# endif
252
253# ifdef tek4300
254# define LOAD_AVE_TYPE long
255# endif
256
257# if defined(alliant) && defined(i860) /* Alliant FX/2800 */
258# define LOAD_AVE_TYPE long
259# endif
260
261# ifdef _AIX
262# define LOAD_AVE_TYPE long
263# endif
264
265# ifdef convex
266# define LOAD_AVE_TYPE double
267# ifndef LDAV_CVT
268# define LDAV_CVT(n) (n)
269# endif
270# endif
271
272# endif /* No LOAD_AVE_TYPE. */
273
274# ifdef OSF_ALPHA
275/* <sys/param.h> defines an incorrect value for FSCALE on Alpha OSF/1,
276 according to ghazi@noc.rutgers.edu. */
277# undef FSCALE
278# define FSCALE 1024.0
279# endif
280
281# if defined(alliant) && defined(i860) /* Alliant FX/2800 */
282/* <sys/param.h> defines an incorrect value for FSCALE on an
283 Alliant FX/2800 Concentrix 2.2, according to ghazi@noc.rutgers.edu. */
284# undef FSCALE
285# define FSCALE 100.0
286# endif
287
288
289# ifndef FSCALE
290
291/* SunOS and some others define FSCALE in sys/param.h. */
292
293# ifdef MORE_BSD
294# define FSCALE 2048.0
295# endif
296
297# if defined(MIPS) || defined(SVR4) || defined(decstation)
298# define FSCALE 256
299# endif
300
301# if defined (sgi) || defined (sequent)
302/* Sometimes both MIPS and sgi are defined, so FSCALE was just defined
303 above under #ifdef MIPS. But we want the sgi value. */
304# undef FSCALE
305# define FSCALE 1000.0
306# endif
307
308# if defined (ardent) && defined (titan)
309# define FSCALE 65536.0
310# endif
311
312# ifdef tek4300
313# define FSCALE 100.0
314# endif
315
316# ifdef _AIX
317# define FSCALE 65536.0
318# endif
319
320# endif /* Not FSCALE. */
321
322# if !defined (LDAV_CVT) && defined (FSCALE)
323# define LDAV_CVT(n) (((double) (n)) / FSCALE)
324# endif
325
326# ifndef NLIST_STRUCT
327# if HAVE_NLIST_H
328# define NLIST_STRUCT
329# endif
330# endif
331
332# if defined(sgi) || (defined(mips) && !defined(BSD))
333# define FIXUP_KERNEL_SYMBOL_ADDR(nl) ((nl)[0].n_value &= ~(1 << 31))
334# endif
335
336
337# if !defined (KERNEL_FILE) && defined (sequent)
338# define KERNEL_FILE "/dynix"
339# endif
340
341# if !defined (KERNEL_FILE) && defined (hpux)
342# define KERNEL_FILE "/hp-ux"
343# endif
344
345# if !defined(KERNEL_FILE) && (defined(_SEQUENT_) || defined(MIPS) || defined(SVR4) || defined(ISC) || defined (sgi) || (defined (ardent) && defined (titan)))
346# define KERNEL_FILE "/unix"
347# endif
348
349
350# if !defined (LDAV_SYMBOL) && defined (alliant)
351# define LDAV_SYMBOL "_Loadavg"
352# endif
353
354# if !defined(LDAV_SYMBOL) && ((defined(hpux) && !defined(hp9000s300)) || defined(_SEQUENT_) || defined(SVR4) || defined(ISC) || defined(sgi) || (defined (ardent) && defined (titan)) || defined (_AIX))
355# define LDAV_SYMBOL "avenrun"
356# endif
357
358# include <unistd.h>
359# include <stdio.h>
360
361/* LOAD_AVE_TYPE should only get defined if we're going to use the
362 nlist method. */
363# if !defined(LOAD_AVE_TYPE) && (defined(BSD) || defined(LDAV_CVT) || defined(KERNEL_FILE) || defined(LDAV_SYMBOL))
364# define LOAD_AVE_TYPE double
365# endif
366
367# ifdef LOAD_AVE_TYPE
368
369# ifndef VMS
370# ifndef __linux__
371# ifndef NLIST_STRUCT
372# include <a.out.h>
373# else /* NLIST_STRUCT */
374# include <nlist.h>
375# endif /* NLIST_STRUCT */
376
377# ifdef SUNOS_5
378# include <fcntl.h>
379# include <kvm.h>
380# include <kstat.h>
381# endif
382
383# if defined (hpux) && defined (HAVE_PSTAT_GETDYNAMIC)
384# include <sys/pstat.h>
385# endif
386
387# ifndef KERNEL_FILE
388# define KERNEL_FILE "/vmunix"
389# endif /* KERNEL_FILE */
390
391# ifndef LDAV_SYMBOL
392# define LDAV_SYMBOL "_avenrun"
393# endif /* LDAV_SYMBOL */
394# endif /* __linux__ */
395
396# else /* VMS */
397
398# ifndef eunice
399# include <iodef.h>
400# include <descrip.h>
401# else /* eunice */
402# include <vms/iodef.h>
403# endif /* eunice */
404# endif /* VMS */
405
406# ifndef LDAV_CVT
407# define LDAV_CVT(n) ((double) (n))
408# endif /* !LDAV_CVT */
409
410# endif /* LOAD_AVE_TYPE */
411
412# if defined(__GNU__) && !defined (NeXT)
413/* Note that NeXT Openstep defines __GNU__ even though it should not. */
414/* GNU system acts much like NeXT, for load average purposes,
415 but not exactly. */
416# define NeXT
417# define host_self mach_host_self
418# endif
419
420# ifdef NeXT
421# ifdef HAVE_MACH_MACH_H
422# include <mach/mach.h>
423# else
424# include <mach.h>
425# endif
426# endif /* NeXT */
427
428# ifdef sgi
429# include <sys/sysmp.h>
430# endif /* sgi */
431
432# ifdef UMAX
433# include <stdio.h>
434# include <signal.h>
435# include <sys/time.h>
436# include <sys/wait.h>
437# include <sys/syscall.h>
438
439# ifdef UMAX_43
440# include <machine/cpu.h>
441# include <inq_stats/statistics.h>
442# include <inq_stats/sysstats.h>
443# include <inq_stats/cpustats.h>
444# include <inq_stats/procstats.h>
445# else /* Not UMAX_43. */
446# include <sys/sysdefs.h>
447# include <sys/statistics.h>
448# include <sys/sysstats.h>
449# include <sys/cpudefs.h>
450# include <sys/cpustats.h>
451# include <sys/procstats.h>
452# endif /* Not UMAX_43. */
453# endif /* UMAX */
454
455# ifdef DGUX
456# include <sys/dg_sys_info.h>
457# endif
458
459# if defined(HAVE_FCNTL_H) || defined(_POSIX_VERSION)
460# include <fcntl.h>
461# else
462# include <sys/file.h>
463# endif
464
465/* Avoid static vars inside a function since in HPUX they dump as pure. */
466
467# ifdef NeXT
468static processor_set_t default_set;
469static int getloadavg_initialized;
470# endif /* NeXT */
471
472# ifdef UMAX
473static unsigned int cpus = 0;
474static unsigned int samples;
475# endif /* UMAX */
476
477# ifdef DGUX
478static struct dg_sys_info_load_info load_info; /* what-a-mouthful! */
479# endif /* DGUX */
480
481#if !defined(HAVE_LIBKSTAT) && defined(LOAD_AVE_TYPE)
482/* File descriptor open to /dev/kmem or VMS load ave driver. */
483static int channel;
484/* Nonzero if channel is valid. */
485static int getloadavg_initialized;
486/* Offset in kmem to seek to read load average, or 0 means invalid. */
487static long offset;
488
489# if !defined(VMS) && !defined(sgi) && !defined(__linux__)
490static struct nlist name_list[2];
491# endif /* Not VMS or sgi */
492
493# ifdef SUNOS_5
494static kvm_t *kd;
495# endif /* SUNOS_5 */
496
497#endif /* LOAD_AVE_TYPE && !HAVE_LIBKSTAT */
498
499/* Put the 1 minute, 5 minute and 15 minute load averages
500 into the first NELEM elements of LOADAVG.
501 Return the number written (never more than 3, but may be less than NELEM),
502 or -1 if an error occurred. */
503
504int
505getloadavg (loadavg, nelem)
506 double loadavg[];
507 int nelem;
508{
509 int elem = 0; /* Return value. */
510
511# ifdef NO_GET_LOAD_AVG
512# define LDAV_DONE
513 /* Set errno to zero to indicate that there was no particular error;
514 this function just can't work at all on this system. */
515 errno = 0;
516 elem = -1;
517# endif
518
519# if !defined (LDAV_DONE) && defined (HAVE_LIBKSTAT)
520/* Use libkstat because we don't have to be root. */
521# define LDAV_DONE
522 kstat_ctl_t *kc;
523 kstat_t *ksp;
524 kstat_named_t *kn;
525
526 kc = kstat_open ();
527 if (kc == 0)
528 return -1;
529 ksp = kstat_lookup (kc, "unix", 0, "system_misc");
530 if (ksp == 0 )
531 return -1;
532 if (kstat_read (kc, ksp, 0) == -1)
533 return -1;
534
535
536 kn = kstat_data_lookup (ksp, "avenrun_1min");
537 if (kn == 0)
538 {
539 /* Return -1 if no load average information is available. */
540 nelem = 0;
541 elem = -1;
542 }
543
544 if (nelem >= 1)
545 loadavg[elem++] = (double) kn->value.ul/FSCALE;
546
547 if (nelem >= 2)
548 {
549 kn = kstat_data_lookup (ksp, "avenrun_5min");
550 if (kn != 0)
551 {
552 loadavg[elem++] = (double) kn->value.ul/FSCALE;
553
554 if (nelem >= 3)
555 {
556 kn = kstat_data_lookup (ksp, "avenrun_15min");
557 if (kn != 0)
558 loadavg[elem++] = (double) kn->value.ul/FSCALE;
559 }
560 }
561 }
562
563 kstat_close (kc);
564# endif /* HAVE_LIBKSTAT */
565
566# if !defined (LDAV_DONE) && defined (hpux) && defined (HAVE_PSTAT_GETDYNAMIC)
567/* Use pstat_getdynamic() because we don't have to be root. */
568# define LDAV_DONE
569# undef LOAD_AVE_TYPE
570
571 struct pst_dynamic dyn_info;
572 if (pstat_getdynamic (&dyn_info, sizeof (dyn_info), 0, 0) < 0)
573 return -1;
574 if (nelem > 0)
575 loadavg[elem++] = dyn_info.psd_avg_1_min;
576 if (nelem > 1)
577 loadavg[elem++] = dyn_info.psd_avg_5_min;
578 if (nelem > 2)
579 loadavg[elem++] = dyn_info.psd_avg_15_min;
580
581# endif /* hpux && HAVE_PSTAT_GETDYNAMIC */
582
583# if !defined (LDAV_DONE) && defined (__linux__)
584# define LDAV_DONE
585# undef LOAD_AVE_TYPE
586
587# ifndef LINUX_LDAV_FILE
588# define LINUX_LDAV_FILE "/proc/loadavg"
589# endif
590
591 char ldavgbuf[40];
592 double load_ave[3];
593 int fd, count;
594
595 fd = open (LINUX_LDAV_FILE, O_RDONLY);
596 if (fd == -1)
597 return -1;
598 count = read (fd, ldavgbuf, 40);
599 (void) close (fd);
600 if (count <= 0)
601 return -1;
602
603 /* The following sscanf must use the C locale. */
604 setlocale (LC_NUMERIC, "C");
605 count = sscanf (ldavgbuf, "%lf %lf %lf",
606 &load_ave[0], &load_ave[1], &load_ave[2]);
607 setlocale (LC_NUMERIC, "");
608 if (count < 1)
609 return -1;
610
611 for (elem = 0; elem < nelem && elem < count; elem++)
612 loadavg[elem] = load_ave[elem];
613
614 return elem;
615
616# endif /* __linux__ */
617
618# if !defined (LDAV_DONE) && defined (__NetBSD__)
619# define LDAV_DONE
620# undef LOAD_AVE_TYPE
621
622# ifndef NETBSD_LDAV_FILE
623# define NETBSD_LDAV_FILE "/kern/loadavg"
624# endif
625
626 unsigned long int load_ave[3], scale;
627 int count;
628 FILE *fp;
629
630 fp = fopen (NETBSD_LDAV_FILE, "r");
631 if (fp == NULL)
632 return -1;
633 count = fscanf (fp, "%lu %lu %lu %lu\n",
634 &load_ave[0], &load_ave[1], &load_ave[2],
635 &scale);
636 (void) fclose (fp);
637 if (count != 4)
638 return -1;
639
640 for (elem = 0; elem < nelem; elem++)
641 loadavg[elem] = (double) load_ave[elem] / (double) scale;
642
643 return elem;
644
645# endif /* __NetBSD__ */
646
647# if !defined (LDAV_DONE) && defined (NeXT)
648# define LDAV_DONE
649 /* The NeXT code was adapted from iscreen 3.2. */
650
651 host_t host;
652 struct processor_set_basic_info info;
653 unsigned info_count;
654
655 /* We only know how to get the 1-minute average for this system,
656 so even if the caller asks for more than 1, we only return 1. */
657
658 if (!getloadavg_initialized)
659 {
660 if (processor_set_default (host_self (), &default_set) == KERN_SUCCESS)
661 getloadavg_initialized = 1;
662 }
663
664 if (getloadavg_initialized)
665 {
666 info_count = PROCESSOR_SET_BASIC_INFO_COUNT;
667 if (processor_set_info (default_set, PROCESSOR_SET_BASIC_INFO, &host,
668 (processor_set_info_t) &info, &info_count)
669 != KERN_SUCCESS)
670 getloadavg_initialized = 0;
671 else
672 {
673 if (nelem > 0)
674 loadavg[elem++] = (double) info.load_average / LOAD_SCALE;
675 }
676 }
677
678 if (!getloadavg_initialized)
679 return -1;
680# endif /* NeXT */
681
682# if !defined (LDAV_DONE) && defined (UMAX)
683# define LDAV_DONE
684/* UMAX 4.2, which runs on the Encore Multimax multiprocessor, does not
685 have a /dev/kmem. Information about the workings of the running kernel
686 can be gathered with inq_stats system calls.
687 We only know how to get the 1-minute average for this system. */
688
689 struct proc_summary proc_sum_data;
690 struct stat_descr proc_info;
691 double load;
692 register unsigned int i, j;
693
694 if (cpus == 0)
695 {
696 register unsigned int c, i;
697 struct cpu_config conf;
698 struct stat_descr desc;
699
700 desc.sd_next = 0;
701 desc.sd_subsys = SUBSYS_CPU;
702 desc.sd_type = CPUTYPE_CONFIG;
703 desc.sd_addr = (char *) &conf;
704 desc.sd_size = sizeof conf;
705
706 if (inq_stats (1, &desc))
707 return -1;
708
709 c = 0;
710 for (i = 0; i < conf.config_maxclass; ++i)
711 {
712 struct class_stats stats;
713 memset (&stats, 0, sizeof stats);
714
715 desc.sd_type = CPUTYPE_CLASS;
716 desc.sd_objid = i;
717 desc.sd_addr = (char *) &stats;
718 desc.sd_size = sizeof stats;
719
720 if (inq_stats (1, &desc))
721 return -1;
722
723 c += stats.class_numcpus;
724 }
725 cpus = c;
726 samples = cpus < 2 ? 3 : (2 * cpus / 3);
727 }
728
729 proc_info.sd_next = 0;
730 proc_info.sd_subsys = SUBSYS_PROC;
731 proc_info.sd_type = PROCTYPE_SUMMARY;
732 proc_info.sd_addr = (char *) &proc_sum_data;
733 proc_info.sd_size = sizeof (struct proc_summary);
734 proc_info.sd_sizeused = 0;
735
736 if (inq_stats (1, &proc_info) != 0)
737 return -1;
738
739 load = proc_sum_data.ps_nrunnable;
740 j = 0;
741 for (i = samples - 1; i > 0; --i)
742 {
743 load += proc_sum_data.ps_nrun[j];
744 if (j++ == PS_NRUNSIZE)
745 j = 0;
746 }
747
748 if (nelem > 0)
749 loadavg[elem++] = load / samples / cpus;
750# endif /* UMAX */
751
752# if !defined (LDAV_DONE) && defined (DGUX)
753# define LDAV_DONE
754 /* This call can return -1 for an error, but with good args
755 it's not supposed to fail. The first argument is for no
756 apparent reason of type `long int *'. */
757 dg_sys_info ((long int *) &load_info,
758 DG_SYS_INFO_LOAD_INFO_TYPE,
759 DG_SYS_INFO_LOAD_VERSION_0);
760
761 if (nelem > 0)
762 loadavg[elem++] = load_info.one_minute;
763 if (nelem > 1)
764 loadavg[elem++] = load_info.five_minute;
765 if (nelem > 2)
766 loadavg[elem++] = load_info.fifteen_minute;
767# endif /* DGUX */
768
769# if !defined (LDAV_DONE) && defined (apollo)
770# define LDAV_DONE
771/* Apollo code from lisch@mentorg.com (Ray Lischner).
772
773 This system call is not documented. The load average is obtained as
774 three long integers, for the load average over the past minute,
775 five minutes, and fifteen minutes. Each value is a scaled integer,
776 with 16 bits of integer part and 16 bits of fraction part.
777
778 I'm not sure which operating system first supported this system call,
779 but I know that SR10.2 supports it. */
780
781 extern void proc1_$get_loadav ();
782 unsigned long load_ave[3];
783
784 proc1_$get_loadav (load_ave);
785
786 if (nelem > 0)
787 loadavg[elem++] = load_ave[0] / 65536.0;
788 if (nelem > 1)
789 loadavg[elem++] = load_ave[1] / 65536.0;
790 if (nelem > 2)
791 loadavg[elem++] = load_ave[2] / 65536.0;
792# endif /* apollo */
793
794# if !defined (LDAV_DONE) && defined (OSF_MIPS)
795# define LDAV_DONE
796
797 struct tbl_loadavg load_ave;
798 table (TBL_LOADAVG, 0, &load_ave, 1, sizeof (load_ave));
799 loadavg[elem++]
800 = (load_ave.tl_lscale == 0
801 ? load_ave.tl_avenrun.d[0]
802 : (load_ave.tl_avenrun.l[0] / (double) load_ave.tl_lscale));
803# endif /* OSF_MIPS */
804
805# if !defined (LDAV_DONE) && (defined (__MSDOS__) || defined (WINDOWS32))
806# define LDAV_DONE
807
808 /* A faithful emulation is going to have to be saved for a rainy day. */
809 for ( ; elem < nelem; elem++)
810 {
811 loadavg[elem] = 0.0;
812 }
813# endif /* __MSDOS__ || WINDOWS32 */
814
815# if !defined (LDAV_DONE) && defined (OSF_ALPHA)
816# define LDAV_DONE
817
818 struct tbl_loadavg load_ave;
819 table (TBL_LOADAVG, 0, &load_ave, 1, sizeof (load_ave));
820 for (elem = 0; elem < nelem; elem++)
821 loadavg[elem]
822 = (load_ave.tl_lscale == 0
823 ? load_ave.tl_avenrun.d[elem]
824 : (load_ave.tl_avenrun.l[elem] / (double) load_ave.tl_lscale));
825# endif /* OSF_ALPHA */
826
827# if !defined (LDAV_DONE) && defined (VMS)
828 /* VMS specific code -- read from the Load Ave driver. */
829
830 LOAD_AVE_TYPE load_ave[3];
831 static int getloadavg_initialized = 0;
832# ifdef eunice
833 struct
834 {
835 int dsc$w_length;
836 char *dsc$a_pointer;
837 } descriptor;
838# endif
839
840 /* Ensure that there is a channel open to the load ave device. */
841 if (!getloadavg_initialized)
842 {
843 /* Attempt to open the channel. */
844# ifdef eunice
845 descriptor.dsc$w_length = 18;
846 descriptor.dsc$a_pointer = "$$VMS_LOAD_AVERAGE";
847# else
848 $DESCRIPTOR (descriptor, "LAV0:");
849# endif
850 if (sys$assign (&descriptor, &channel, 0, 0) & 1)
851 getloadavg_initialized = 1;
852 }
853
854 /* Read the load average vector. */
855 if (getloadavg_initialized
856 && !(sys$qiow (0, channel, IO$_READVBLK, 0, 0, 0,
857 load_ave, 12, 0, 0, 0, 0) & 1))
858 {
859 sys$dassgn (channel);
860 getloadavg_initialized = 0;
861 }
862
863 if (!getloadavg_initialized)
864 return -1;
865# endif /* VMS */
866
867# if !defined (LDAV_DONE) && defined(LOAD_AVE_TYPE) && !defined(VMS)
868
869 /* UNIX-specific code -- read the average from /dev/kmem. */
870
871# define LDAV_PRIVILEGED /* This code requires special installation. */
872
873 LOAD_AVE_TYPE load_ave[3];
874
875 /* Get the address of LDAV_SYMBOL. */
876 if (offset == 0)
877 {
878# ifndef sgi
879# ifndef NLIST_STRUCT
880 strcpy (name_list[0].n_name, LDAV_SYMBOL);
881 strcpy (name_list[1].n_name, "");
882# else /* NLIST_STRUCT */
883# ifdef HAVE_STRUCT_NLIST_N_UN_N_NAME
884 name_list[0].n_un.n_name = LDAV_SYMBOL;
885 name_list[1].n_un.n_name = 0;
886# else /* not HAVE_STRUCT_NLIST_N_UN_N_NAME */
887 name_list[0].n_name = LDAV_SYMBOL;
888 name_list[1].n_name = 0;
889# endif /* not HAVE_STRUCT_NLIST_N_UN_N_NAME */
890# endif /* NLIST_STRUCT */
891
892# ifndef SUNOS_5
893 if (
894# if !(defined (_AIX) && !defined (ps2))
895 nlist (KERNEL_FILE, name_list)
896# else /* _AIX */
897 knlist (name_list, 1, sizeof (name_list[0]))
898# endif
899 >= 0)
900 /* Omit "&& name_list[0].n_type != 0 " -- it breaks on Sun386i. */
901 {
902# ifdef FIXUP_KERNEL_SYMBOL_ADDR
903 FIXUP_KERNEL_SYMBOL_ADDR (name_list);
904# endif
905 offset = name_list[0].n_value;
906 }
907# endif /* !SUNOS_5 */
908# else /* sgi */
909 int ldav_off;
910
911 ldav_off = sysmp (MP_KERNADDR, MPKA_AVENRUN);
912 if (ldav_off != -1)
913 offset = (long) ldav_off & 0x7fffffff;
914# endif /* sgi */
915 }
916
917 /* Make sure we have /dev/kmem open. */
918 if (!getloadavg_initialized)
919 {
920# ifndef SUNOS_5
921 channel = open ("/dev/kmem", 0);
922 if (channel >= 0)
923 {
924 /* Set the channel to close on exec, so it does not
925 litter any child's descriptor table. */
926# ifdef F_SETFD
927# ifndef FD_CLOEXEC
928# define FD_CLOEXEC 1
929# endif
930 (void) fcntl (channel, F_SETFD, FD_CLOEXEC);
931# endif
932 getloadavg_initialized = 1;
933 }
934# else /* SUNOS_5 */
935 /* We pass 0 for the kernel, corefile, and swapfile names
936 to use the currently running kernel. */
937 kd = kvm_open (0, 0, 0, O_RDONLY, 0);
938 if (kd != 0)
939 {
940 /* nlist the currently running kernel. */
941 kvm_nlist (kd, name_list);
942 offset = name_list[0].n_value;
943 getloadavg_initialized = 1;
944 }
945# endif /* SUNOS_5 */
946 }
947
948 /* If we can, get the load average values. */
949 if (offset && getloadavg_initialized)
950 {
951 /* Try to read the load. */
952# ifndef SUNOS_5
953 if (lseek (channel, offset, 0) == -1L
954 || read (channel, (char *) load_ave, sizeof (load_ave))
955 != sizeof (load_ave))
956 {
957 close (channel);
958 getloadavg_initialized = 0;
959 }
960# else /* SUNOS_5 */
961 if (kvm_read (kd, offset, (char *) load_ave, sizeof (load_ave))
962 != sizeof (load_ave))
963 {
964 kvm_close (kd);
965 getloadavg_initialized = 0;
966 }
967# endif /* SUNOS_5 */
968 }
969
970 if (offset == 0 || !getloadavg_initialized)
971 return -1;
972# endif /* LOAD_AVE_TYPE and not VMS */
973
974# if !defined (LDAV_DONE) && defined (LOAD_AVE_TYPE) /* Including VMS. */
975 if (nelem > 0)
976 loadavg[elem++] = LDAV_CVT (load_ave[0]);
977 if (nelem > 1)
978 loadavg[elem++] = LDAV_CVT (load_ave[1]);
979 if (nelem > 2)
980 loadavg[elem++] = LDAV_CVT (load_ave[2]);
981
982# define LDAV_DONE
983# endif /* !LDAV_DONE && LOAD_AVE_TYPE */
984
985# ifdef LDAV_DONE
986 return elem;
987# else
988 /* Set errno to zero to indicate that there was no particular error;
989 this function just can't work at all on this system. */
990 errno = 0;
991 return -1;
992# endif
993}
994
995#endif /* ! HAVE_GETLOADAVG */
996
997#ifdef TEST
998void
999main (argc, argv)
1000 int argc;
1001 char **argv;
1002{
1003 int naptime = 0;
1004
1005 if (argc > 1)
1006 naptime = atoi (argv[1]);
1007
1008 while (1)
1009 {
1010 double avg[3];
1011 int loads;
1012
1013 errno = 0; /* Don't be misled if it doesn't set errno. */
1014 loads = getloadavg (avg, 3);
1015 if (loads == -1)
1016 {
1017 perror ("Error getting load average");
1018 exit (1);
1019 }
1020 if (loads > 0)
1021 printf ("1-minute: %f ", avg[0]);
1022 if (loads > 1)
1023 printf ("5-minute: %f ", avg[1]);
1024 if (loads > 2)
1025 printf ("15-minute: %f ", avg[2]);
1026 if (loads > 0)
1027 putchar ('\n');
1028
1029 if (naptime == 0)
1030 break;
1031 sleep (naptime);
1032 }
1033
1034 exit (0);
1035}
1036#endif /* TEST */
1037
diff --git a/src/lisp.h b/src/lisp.h
index 4afc73195fd..2b2f61bbda4 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -3407,11 +3407,6 @@ EXFUN (Fclear_face_cache, 1);
3407EXFUN (Fx_load_color_file, 1); 3407EXFUN (Fx_load_color_file, 1);
3408extern void syms_of_xfaces (void); 3408extern void syms_of_xfaces (void);
3409 3409
3410#ifndef HAVE_GETLOADAVG
3411/* Defined in getloadavg.c */
3412extern int getloadavg (double *, int);
3413#endif
3414
3415#ifdef HAVE_X_WINDOWS 3410#ifdef HAVE_X_WINDOWS
3416/* Defined in xfns.c */ 3411/* Defined in xfns.c */
3417extern void syms_of_xfns (void); 3412extern void syms_of_xfns (void);
diff --git a/src/s/freebsd.h b/src/s/freebsd.h
index 222ebc91c4a..24b34e02f69 100644
--- a/src/s/freebsd.h
+++ b/src/s/freebsd.h
@@ -25,8 +25,6 @@ along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
25 25
26#define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_p - (FILE)->_bf._base) 26#define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_p - (FILE)->_bf._base)
27 27
28#define HAVE_GETLOADAVG 1
29
30/* This silences a few compilation warnings. */ 28/* This silences a few compilation warnings. */
31#undef BSD_SYSTEM 29#undef BSD_SYSTEM
32#if __FreeBSD__ == 1 30#if __FreeBSD__ == 1
diff --git a/src/s/netbsd.h b/src/s/netbsd.h
index 8a639b93c84..52cda717a2d 100644
--- a/src/s/netbsd.h
+++ b/src/s/netbsd.h
@@ -21,8 +21,6 @@ along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
21/* Get most of the stuff from bsd-common. */ 21/* Get most of the stuff from bsd-common. */
22#include "bsd-common.h" 22#include "bsd-common.h"
23 23
24#define HAVE_GETLOADAVG 1
25
26#define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_p - (FILE)->_bf._base) 24#define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_p - (FILE)->_bf._base)
27 25
28#define DEFAULT_SOUND_DEVICE "/dev/audio" 26#define DEFAULT_SOUND_DEVICE "/dev/audio"
@@ -43,4 +41,3 @@ along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
43 41
44/* Use the GC_MAKE_GCPROS_NOOPS (see lisp.h) method. */ 42/* Use the GC_MAKE_GCPROS_NOOPS (see lisp.h) method. */
45#define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS 43#define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
46
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