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19468eff | 1 | /* Copyright (C) 1995,1996,1997 Free Software Foundation, Inc. |
0f2d19dd JB |
2 | * |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2, or (at your option) | |
6 | * any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this software; see the file COPYING. If not, write to | |
15 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
16 | * | |
17 | * As a special exception, the Free Software Foundation gives permission | |
18 | * for additional uses of the text contained in its release of GUILE. | |
19 | * | |
20 | * The exception is that, if you link the GUILE library with other files | |
21 | * to produce an executable, this does not by itself cause the | |
22 | * resulting executable to be covered by the GNU General Public License. | |
23 | * Your use of that executable is in no way restricted on account of | |
24 | * linking the GUILE library code into it. | |
25 | * | |
26 | * This exception does not however invalidate any other reasons why | |
27 | * the executable file might be covered by the GNU General Public License. | |
28 | * | |
29 | * This exception applies only to the code released by the | |
30 | * Free Software Foundation under the name GUILE. If you copy | |
31 | * code from other Free Software Foundation releases into a copy of | |
32 | * GUILE, as the General Public License permits, the exception does | |
33 | * not apply to the code that you add in this way. To avoid misleading | |
34 | * anyone as to the status of such modified files, you must delete | |
35 | * this exception notice from them. | |
36 | * | |
37 | * If you write modifications of your own for GUILE, it is your choice | |
38 | * whether to permit this exception to apply to your modifications. | |
39 | * If you do not wish that, delete this exception notice. | |
40 | */ | |
41 | \f | |
42 | ||
43 | #include <stdio.h> | |
44 | #include "_scm.h" | |
876c87ce | 45 | #include "feature.h" |
20e6290e JB |
46 | |
47 | #include "stime.h" | |
48 | ||
0f2d19dd JB |
49 | #ifdef HAVE_UNISTD_H |
50 | #include <unistd.h> | |
51 | #endif | |
52 | ||
53 | \f | |
54 | # ifdef HAVE_SYS_TYPES_H | |
55 | # include <sys/types.h> | |
56 | # endif | |
57 | ||
58 | # ifdef TIME_WITH_SYS_TIME | |
59 | # include <sys/time.h> | |
60 | # include <time.h> | |
61 | # else | |
62 | # ifdef HAVE_SYS_TIME_H | |
63 | # include <sys/time.h> | |
64 | # else | |
65 | # ifdef HAVE_TIME_H | |
66 | # include <time.h> | |
67 | # endif | |
68 | # endif | |
69 | # endif | |
70 | ||
71 | # ifdef HAVE_SYS_TIMES_H | |
72 | # include <sys/times.h> | |
73 | # else | |
74 | # ifdef HAVE_SYS_TIMEB_H | |
75 | # include <sys/timeb.h> | |
76 | # endif | |
77 | # endif | |
78 | ||
cda55316 | 79 | /* This should be figured out by autoconf. */ |
0f2d19dd JB |
80 | #ifdef CLK_TCK |
81 | # define CLKTCK CLK_TCK | |
82 | # ifdef CLOCKS_PER_SEC | |
cda55316 | 83 | # if defined (unix) || defined (__unix) |
0f2d19dd JB |
84 | # ifndef ARM_ULIB |
85 | # include <sys/times.h> | |
86 | # endif | |
87 | # define LACK_CLOCK | |
88 | /* This is because clock() might be POSIX rather than ANSI. | |
89 | This occurs on HP-UX machines */ | |
90 | # endif | |
91 | # endif | |
92 | #else | |
93 | # ifdef CLOCKS_PER_SEC | |
94 | # define CLKTCK CLOCKS_PER_SEC | |
95 | # else | |
96 | # define LACK_CLOCK | |
97 | # define CLKTCK 60 | |
98 | # endif | |
99 | #endif | |
100 | ||
101 | ||
102 | # ifdef HAVE_FTIME | |
103 | # include <sys/timeb.h> | |
104 | # endif | |
105 | ||
106 | ||
107 | #ifdef __STDC__ | |
108 | # define timet time_t | |
109 | #else | |
110 | # define timet long | |
111 | #endif | |
112 | ||
113 | #ifdef HAVE_TIMES | |
0f2d19dd JB |
114 | static |
115 | long mytime() | |
0f2d19dd JB |
116 | { |
117 | struct tms time_buffer; | |
118 | times(&time_buffer); | |
119 | return time_buffer.tms_utime + time_buffer.tms_stime; | |
120 | } | |
121 | #else | |
122 | # ifdef LACK_CLOCK | |
123 | # define mytime() ((time((timet*)0) - scm_your_base) * CLKTCK) | |
124 | # else | |
125 | # define mytime clock | |
126 | # endif | |
127 | #endif | |
128 | ||
19468eff | 129 | extern int errno; |
0f2d19dd JB |
130 | |
131 | #ifdef HAVE_FTIME | |
132 | ||
23858ad1 MD |
133 | extern int ftime (struct timeb *); |
134 | ||
0f2d19dd JB |
135 | struct timeb scm_your_base = {0}; |
136 | SCM_PROC(s_get_internal_real_time, "get-internal-real-time", 0, 0, 0, scm_get_internal_real_time); | |
0f2d19dd JB |
137 | SCM |
138 | scm_get_internal_real_time() | |
0f2d19dd JB |
139 | { |
140 | struct timeb time_buffer; | |
141 | long tmp; | |
142 | ftime(&time_buffer); | |
143 | time_buffer.time -= scm_your_base.time; | |
144 | tmp = time_buffer.millitm - scm_your_base.millitm; | |
145 | tmp = time_buffer.time*1000L + tmp; | |
146 | tmp *= CLKTCK; | |
147 | tmp /= 1000; | |
19468eff | 148 | return scm_long2num (tmp); |
0f2d19dd JB |
149 | } |
150 | ||
151 | #else | |
152 | ||
153 | timet scm_your_base = 0; | |
154 | SCM_PROC(s_get_internal_real_time, "get-internal-real-time", 0, 0, 0, scm_get_internal_real_time); | |
0f2d19dd JB |
155 | SCM |
156 | scm_get_internal_real_time() | |
0f2d19dd | 157 | { |
19468eff | 158 | return scm_long2num((time((timet*)0) - scm_your_base) * (int)CLKTCK); |
0f2d19dd JB |
159 | } |
160 | #endif | |
161 | ||
162 | ||
163 | ||
164 | static long scm_my_base = 0; | |
165 | ||
166 | SCM_PROC(s_get_internal_run_time, "get-internal-run-time", 0, 0, 0, scm_get_internal_run_time); | |
0f2d19dd JB |
167 | SCM |
168 | scm_get_internal_run_time() | |
0f2d19dd | 169 | { |
19468eff | 170 | return scm_long2num(mytime()-scm_my_base); |
0f2d19dd JB |
171 | } |
172 | ||
173 | SCM_PROC(s_current_time, "current-time", 0, 0, 0, scm_current_time); | |
0f2d19dd JB |
174 | SCM |
175 | scm_current_time() | |
0f2d19dd | 176 | { |
19468eff GH |
177 | timet timv; |
178 | ||
179 | SCM_DEFER_INTS; | |
180 | if ((timv = time (0)) == -1) | |
181 | scm_syserror (s_current_time); | |
182 | SCM_ALLOW_INTS; | |
183 | return scm_long2num((long) timv); | |
184 | } | |
185 | ||
1bf9865d | 186 | SCM_PROC (s_gettimeofday, "gettimeofday", 0, 0, 0, scm_gettimeofday); |
19468eff | 187 | SCM |
1bf9865d | 188 | scm_gettimeofday (void) |
19468eff GH |
189 | { |
190 | #ifdef HAVE_GETTIMEOFDAY | |
191 | struct timeval time; | |
192 | ||
193 | SCM_DEFER_INTS; | |
194 | if (gettimeofday (&time, NULL) == -1) | |
1bf9865d | 195 | scm_syserror (s_gettimeofday); |
19468eff GH |
196 | SCM_ALLOW_INTS; |
197 | return scm_cons (scm_long2num ((long) time.tv_sec), | |
198 | scm_long2num ((long) time.tv_usec)); | |
199 | #else | |
200 | # ifdef HAVE_FTIME | |
201 | struct timeb time; | |
202 | ||
203 | ftime(&time); | |
204 | return scm_cons (scm_long2num ((long) time.time), | |
9a81afca | 205 | SCM_MAKINUM (time.millitm * 1000)); |
19468eff GH |
206 | # else |
207 | timet timv; | |
208 | ||
209 | SCM_DEFER_INTS; | |
210 | if ((timv = time (0)) == -1) | |
1bf9865d | 211 | scm_syserror (s_gettimeofday); |
19468eff GH |
212 | SCM_ALLOW_INTS; |
213 | return scm_cons (scm_long2num (timv), SCM_MAKINUM (0)); | |
214 | # endif | |
215 | #endif | |
216 | } | |
217 | ||
218 | static SCM | |
219 | filltime (struct tm *bd_time, int zoff, char *zname) | |
220 | { | |
221 | SCM result = scm_make_vector(SCM_MAKINUM(11), SCM_UNDEFINED, SCM_UNDEFINED); | |
222 | ||
223 | SCM_VELTS (result)[0] = SCM_MAKINUM (bd_time->tm_sec); | |
224 | SCM_VELTS (result)[1] = SCM_MAKINUM (bd_time->tm_min); | |
225 | SCM_VELTS (result)[2] = SCM_MAKINUM (bd_time->tm_hour); | |
226 | SCM_VELTS (result)[3] = SCM_MAKINUM (bd_time->tm_mday); | |
227 | SCM_VELTS (result)[4] = SCM_MAKINUM (bd_time->tm_mon); | |
228 | SCM_VELTS (result)[5] = SCM_MAKINUM (bd_time->tm_year); | |
229 | SCM_VELTS (result)[6] = SCM_MAKINUM (bd_time->tm_wday); | |
230 | SCM_VELTS (result)[7] = SCM_MAKINUM (bd_time->tm_yday); | |
231 | SCM_VELTS (result)[8] = SCM_MAKINUM (bd_time->tm_isdst); | |
232 | SCM_VELTS (result)[9] = SCM_MAKINUM (zoff); | |
233 | SCM_VELTS (result)[10] = scm_makfrom0str (zname); | |
234 | return result; | |
235 | } | |
236 | ||
237 | #if 0 | |
238 | SCM_PROC (s_localtime, "localtime", 1, 1, 0, scm_localtime); | |
239 | SCM | |
240 | scm_localtime (SCM time, SCM zone) | |
241 | { | |
242 | timet itime; | |
243 | struct tm *lt, *utc; | |
244 | SCM result; | |
245 | int zoff; | |
246 | char *zname = 0; | |
247 | char *tzvar = "TZ"; | |
248 | char *oldtz = 0; | |
249 | int err; | |
250 | ||
251 | itime = scm_num2long (time, (char *) SCM_ARG1, s_localtime); | |
252 | SCM_DEFER_INTS; | |
253 | if (!SCM_UNBNDP (zone)) | |
254 | { | |
255 | char *buf; | |
256 | ||
257 | /* if zone was supplied, set the environment variable TZ temporarily. */ | |
258 | SCM_ASSERT (SCM_NIMP (zone) && SCM_STRINGP (zone), zone, SCM_ARG2, | |
259 | s_localtime); | |
260 | buf = malloc (SCM_LENGTH (zone) + 4); | |
261 | if (buf == 0) | |
262 | scm_memory_error (s_localtime); | |
263 | oldtz = getenv (tzvar); | |
264 | sprintf (buf, "%s=%s", tzvar, SCM_CHARS (zone)); | |
265 | putenv (buf); | |
266 | tzset(); | |
267 | } | |
268 | lt = localtime (&itime); | |
269 | err = errno; | |
270 | utc = gmtime (&itime); | |
271 | if (utc == NULL) | |
272 | err = errno; | |
273 | if (lt) | |
274 | { | |
275 | /* must be copied before calling tzset again. */ | |
276 | char *ptr = tzname[ (lt->tm_isdst == 1) ? 1 : 0 ]; | |
277 | ||
278 | zname = scm_must_malloc (strlen (ptr) + 1, s_localtime); | |
279 | strcpy (zname, ptr); | |
280 | } | |
281 | if (!SCM_UNBNDP (zone)) | |
282 | { | |
283 | /* restore the old environment value of TZ. */ | |
284 | if (oldtz) | |
285 | putenv (oldtz - 3); | |
286 | else | |
287 | putenv (tzvar); | |
288 | tzset(); | |
289 | } | |
290 | errno = err; | |
291 | if (utc == NULL) | |
292 | scm_syserror (s_localtime); | |
293 | if (lt == NULL) | |
294 | scm_syserror (s_localtime); | |
295 | ||
296 | /* calculate timezone offset in seconds west of UTC. */ | |
297 | zoff = (utc->tm_hour - lt->tm_hour) * 3600 + (utc->tm_min - lt->tm_min) * 60 | |
298 | + utc->tm_sec - lt->tm_sec; | |
299 | if (utc->tm_year < lt->tm_year) | |
300 | zoff -= 24 * 60 * 60; | |
301 | else if (utc->tm_year > lt->tm_year) | |
302 | zoff += 24 * 60 * 60; | |
303 | else if (utc->tm_yday < lt->tm_yday) | |
304 | zoff -= 24 * 60 * 60; | |
305 | else if (utc->tm_yday > lt->tm_yday) | |
306 | zoff += 24 * 60 * 60; | |
307 | ||
308 | result = filltime (lt, zoff, zname); | |
309 | SCM_ALLOW_INTS; | |
310 | return result; | |
311 | } | |
312 | #endif | |
313 | ||
314 | SCM_PROC (s_gmtime, "gmtime", 1, 0, 0, scm_gmtime); | |
315 | SCM | |
316 | scm_gmtime (SCM time) | |
317 | { | |
318 | timet itime; | |
319 | struct tm *bd_time; | |
320 | SCM result; | |
321 | ||
322 | itime = scm_num2long (time, (char *) SCM_ARG1, s_gmtime); | |
323 | SCM_DEFER_INTS; | |
324 | bd_time = gmtime (&itime); | |
325 | if (bd_time == NULL) | |
326 | scm_syserror (s_gmtime); | |
327 | result = filltime (bd_time, 0, "GMT"); | |
328 | SCM_ALLOW_INTS; | |
329 | return result; | |
330 | } | |
331 | ||
332 | #if 0 | |
333 | SCM_PROC (s_mktime, "mktime", 1, 0, 0, scm_mktime); | |
334 | SCM | |
335 | scm_mktime (SCM sbd_time) | |
336 | { | |
337 | timet itime; | |
338 | struct tm lt, *utc; | |
339 | SCM result; | |
340 | int zoff; | |
341 | char *zname; | |
342 | ||
343 | SCM_ASSERT (SCM_VECTORP (sbd_time), sbd_time, SCM_ARG1, s_mktime); | |
344 | SCM_ASSERT (SCM_INUMP (SCM_VELTS (sbd_time)[0]) | |
345 | && SCM_INUMP (SCM_VELTS (sbd_time)[1]) | |
346 | && SCM_INUMP (SCM_VELTS (sbd_time)[2]) | |
347 | && SCM_INUMP (SCM_VELTS (sbd_time)[3]) | |
348 | && SCM_INUMP (SCM_VELTS (sbd_time)[4]) | |
349 | && SCM_INUMP (SCM_VELTS (sbd_time)[5]) | |
350 | && SCM_INUMP (SCM_VELTS (sbd_time)[8]), | |
351 | sbd_time, SCM_ARG1, s_mktime); | |
352 | lt.tm_sec = SCM_INUM (SCM_VELTS (sbd_time)[0]); | |
353 | lt.tm_min = SCM_INUM (SCM_VELTS (sbd_time)[1]); | |
354 | lt.tm_hour = SCM_INUM (SCM_VELTS (sbd_time)[2]); | |
355 | lt.tm_mday = SCM_INUM (SCM_VELTS (sbd_time)[3]); | |
356 | lt.tm_mon = SCM_INUM (SCM_VELTS (sbd_time)[4]); | |
357 | lt.tm_year = SCM_INUM (SCM_VELTS (sbd_time)[5]); | |
358 | lt.tm_isdst = SCM_INUM (SCM_VELTS (sbd_time)[8]); | |
359 | ||
360 | SCM_DEFER_INTS; | |
361 | itime = mktime (<); | |
362 | if (itime == -1) | |
363 | scm_syserror (s_mktime); | |
364 | ||
365 | /* timezone offset in seconds west of UTC. */ | |
366 | utc = gmtime (&itime); | |
367 | zoff = (utc->tm_hour - lt.tm_hour) * 3600 + (utc->tm_min - lt.tm_min) * 60 | |
368 | + utc->tm_sec - lt.tm_sec; | |
369 | if (utc->tm_year < lt.tm_year) | |
370 | zoff -= 24 * 60 * 60; | |
371 | else if (utc->tm_year > lt.tm_year) | |
372 | zoff += 24 * 60 * 60; | |
373 | else if (utc->tm_yday < lt.tm_yday) | |
374 | zoff -= 24 * 60 * 60; | |
375 | else if (utc->tm_yday > lt.tm_yday) | |
376 | zoff += 24 * 60 * 60; | |
377 | ||
378 | /* timezone name. */ | |
379 | zname = tzname[ (lt.tm_isdst == 1) ? 1 : 0 ]; | |
380 | ||
381 | result = scm_cons (scm_long2num ((long) itime), | |
382 | filltime (<, zoff, zname)); | |
383 | SCM_ALLOW_INTS; | |
384 | return result; | |
0f2d19dd | 385 | } |
19468eff | 386 | #endif |
0f2d19dd | 387 | |
19468eff GH |
388 | SCM_PROC (s_tzset, "tzset", 0, 0, 0, scm_tzset); |
389 | SCM | |
390 | scm_tzset (void) | |
0f2d19dd | 391 | { |
19468eff GH |
392 | tzset(); |
393 | return SCM_UNSPECIFIED; | |
0f2d19dd JB |
394 | } |
395 | ||
0f2d19dd JB |
396 | void |
397 | scm_init_stime() | |
0f2d19dd JB |
398 | { |
399 | scm_sysintern("internal-time-units-per-second", | |
19468eff | 400 | scm_long2num((long)CLKTCK)); |
0f2d19dd JB |
401 | |
402 | #ifdef HAVE_FTIME | |
403 | if (!scm_your_base.time) ftime(&scm_your_base); | |
404 | #else | |
405 | if (!scm_your_base) time(&scm_your_base); | |
406 | #endif | |
407 | ||
408 | if (!scm_my_base) scm_my_base = mytime(); | |
409 | ||
876c87ce | 410 | scm_add_feature ("current-time"); |
0f2d19dd JB |
411 | #include "stime.x" |
412 | } | |
413 |