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0f2d19dd JB |
1 | /* Copyright (C) 1995,1996 Free Software Foundation, Inc. |
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" | |
45 | #ifdef HAVE_UNISTD_H | |
46 | #include <unistd.h> | |
47 | #endif | |
48 | ||
49 | \f | |
50 | # ifdef HAVE_SYS_TYPES_H | |
51 | # include <sys/types.h> | |
52 | # endif | |
53 | ||
54 | # ifdef TIME_WITH_SYS_TIME | |
55 | # include <sys/time.h> | |
56 | # include <time.h> | |
57 | # else | |
58 | # ifdef HAVE_SYS_TIME_H | |
59 | # include <sys/time.h> | |
60 | # else | |
61 | # ifdef HAVE_TIME_H | |
62 | # include <time.h> | |
63 | # endif | |
64 | # endif | |
65 | # endif | |
66 | ||
67 | # ifdef HAVE_SYS_TIMES_H | |
68 | # include <sys/times.h> | |
69 | # else | |
70 | # ifdef HAVE_SYS_TIMEB_H | |
71 | # include <sys/timeb.h> | |
72 | # endif | |
73 | # endif | |
74 | ||
75 | #ifdef CLK_TCK | |
76 | # define CLKTCK CLK_TCK | |
77 | # ifdef CLOCKS_PER_SEC | |
78 | # ifdef unix | |
79 | # ifndef ARM_ULIB | |
80 | # include <sys/times.h> | |
81 | # endif | |
82 | # define LACK_CLOCK | |
83 | /* This is because clock() might be POSIX rather than ANSI. | |
84 | This occurs on HP-UX machines */ | |
85 | # endif | |
86 | # endif | |
87 | #else | |
88 | # ifdef CLOCKS_PER_SEC | |
89 | # define CLKTCK CLOCKS_PER_SEC | |
90 | # else | |
91 | # define LACK_CLOCK | |
92 | # define CLKTCK 60 | |
93 | # endif | |
94 | #endif | |
95 | ||
96 | ||
97 | # ifdef HAVE_FTIME | |
98 | # include <sys/timeb.h> | |
99 | # endif | |
100 | ||
101 | ||
102 | #ifdef __STDC__ | |
103 | # define timet time_t | |
104 | #else | |
105 | # define timet long | |
106 | #endif | |
107 | ||
108 | #ifdef HAVE_TIMES | |
109 | #ifdef __STDC__ | |
110 | static | |
111 | long mytime(void) | |
112 | #else | |
113 | static | |
114 | long mytime() | |
115 | #endif | |
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 | ||
129 | ||
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); | |
137 | #ifdef __STDC__ | |
138 | SCM | |
139 | scm_get_internal_real_time(void) | |
140 | #else | |
141 | SCM | |
142 | scm_get_internal_real_time() | |
143 | #endif | |
144 | { | |
145 | struct timeb time_buffer; | |
146 | long tmp; | |
147 | ftime(&time_buffer); | |
148 | time_buffer.time -= scm_your_base.time; | |
149 | tmp = time_buffer.millitm - scm_your_base.millitm; | |
150 | tmp = time_buffer.time*1000L + tmp; | |
151 | tmp *= CLKTCK; | |
152 | tmp /= 1000; | |
153 | return SCM_MAKINUM(tmp); | |
154 | } | |
155 | ||
156 | #else | |
157 | ||
158 | timet scm_your_base = 0; | |
159 | SCM_PROC(s_get_internal_real_time, "get-internal-real-time", 0, 0, 0, scm_get_internal_real_time); | |
160 | #ifdef __STDC__ | |
161 | SCM | |
162 | scm_get_internal_real_time(void) | |
163 | #else | |
164 | SCM | |
165 | scm_get_internal_real_time() | |
166 | #endif | |
167 | { | |
168 | return SCM_MAKINUM((time((timet*)0) - scm_your_base) * (int)CLKTCK); | |
169 | } | |
170 | #endif | |
171 | ||
172 | ||
173 | ||
174 | static long scm_my_base = 0; | |
175 | ||
176 | SCM_PROC(s_get_internal_run_time, "get-internal-run-time", 0, 0, 0, scm_get_internal_run_time); | |
177 | #ifdef __STDC__ | |
178 | SCM | |
179 | scm_get_internal_run_time(void) | |
180 | #else | |
181 | SCM | |
182 | scm_get_internal_run_time() | |
183 | #endif | |
184 | { | |
185 | return SCM_MAKINUM(mytime()-scm_my_base); | |
186 | } | |
187 | ||
188 | SCM_PROC(s_current_time, "current-time", 0, 0, 0, scm_current_time); | |
189 | #ifdef __STDC__ | |
190 | SCM | |
191 | scm_current_time(void) | |
192 | #else | |
193 | SCM | |
194 | scm_current_time() | |
195 | #endif | |
196 | { | |
197 | timet timv = time((timet*)0); | |
198 | SCM ans; | |
199 | ans = scm_ulong2num(timv); | |
200 | return SCM_BOOL_F==ans ? SCM_MAKINUM(timv) : ans; | |
201 | } | |
202 | ||
203 | #ifdef __STDC__ | |
204 | long | |
205 | scm_time_in_msec(long x) | |
206 | #else | |
207 | long | |
208 | scm_time_in_msec(x) | |
209 | long x; | |
210 | #endif | |
211 | { | |
212 | if (CLKTCK==60) return (x*50)/3; | |
213 | else | |
214 | return (CLKTCK < 1000 ? x*(1000L/(long)CLKTCK) : (x*1000L)/(long)CLKTCK); | |
215 | } | |
216 | ||
217 | #ifdef __STDC__ | |
218 | void | |
219 | scm_init_stime(void) | |
220 | #else | |
221 | void | |
222 | scm_init_stime() | |
223 | #endif | |
224 | { | |
225 | scm_sysintern("internal-time-units-per-second", | |
226 | SCM_MAKINUM((long)CLKTCK)); | |
227 | ||
228 | #ifdef HAVE_FTIME | |
229 | if (!scm_your_base.time) ftime(&scm_your_base); | |
230 | #else | |
231 | if (!scm_your_base) time(&scm_your_base); | |
232 | #endif | |
233 | ||
234 | if (!scm_my_base) scm_my_base = mytime(); | |
235 | ||
236 | #include "stime.x" | |
237 | } | |
238 |