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b79f73df JL |
1 | /* Implement timing-related runtime actions for CHILL. |
2 | Copyright (C) 1992,1993 Free Software Foundation, Inc. | |
3 | Author: Wilfried Moser | |
4 | ||
5 | This file is part of GNU CC. | |
6 | ||
7 | GNU CC is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GNU CC is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU CC; see the file COPYING. If not, write to | |
201853b4 JL |
19 | the Free Software Foundation, 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
b79f73df | 21 | |
502b941f JL |
22 | /* As a special exception, if you link this library with other files, |
23 | some of which are compiled with GCC, to produce an executable, | |
24 | this library does not by itself cause the resulting executable | |
25 | to be covered by the GNU General Public License. | |
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 | ||
b79f73df JL |
29 | #include <time.h> |
30 | #include "rtltypes.h" | |
31 | ||
32 | EXCEPTION (rangefail); | |
33 | ||
34 | #define SECOND_VALID 1 | |
35 | #define MINUTE_VALID 2 | |
36 | #define HOUR_VALID 4 | |
37 | #define DAY_VALID 8 | |
38 | #define MONTH_VALID 16 | |
39 | #define YEAR_VALID 32 | |
40 | ||
41 | extern void __cause_ex1 (char *ex, char *file, int lineno); | |
42 | ||
43 | #define CAUSE_RANGEFAIL __cause_ex1 ("rangefail", filename, lineno) | |
44 | ||
45 | /* | |
46 | * function _abstime | |
47 | * | |
48 | * parameters: | |
49 | * mask - mask of valid values | |
50 | * year | |
51 | * month | |
52 | * day | |
53 | * hour | |
54 | * minute | |
55 | * second | |
56 | * | |
57 | * returns: | |
58 | * unsigned long | |
59 | * | |
60 | * exceptions: | |
61 | * rangefail | |
62 | * | |
63 | * abstract: | |
64 | * perform the ABSTIME builtin call | |
65 | * | |
66 | */ | |
67 | ||
68 | unsigned long | |
69 | _abstime (mask, year, month, day, hour, minute, second, | |
70 | filename, lineno) | |
71 | int mask, year, month, day, hour, minute, second; | |
72 | char *filename; | |
73 | int lineno; | |
74 | { | |
75 | struct tm *time_str; | |
76 | time_t result, current_time; | |
77 | ||
78 | /* first of all get current time */ | |
79 | if ((current_time = time (0)) == (time_t)-1) | |
80 | /* FIXME: what excpetion ?? */ | |
81 | CAUSE_RANGEFAIL; | |
82 | ||
83 | /* if we just have to determine the current time, we are ready. | |
84 | This is shown by mask == 0. */ | |
85 | if (mask == 0) | |
86 | return (unsigned long)current_time; | |
87 | ||
88 | /* convert current time to struct tm */ | |
89 | time_str = localtime (¤t_time); | |
90 | ||
91 | if (mask & YEAR_VALID) | |
92 | { | |
93 | if (year < 1900) | |
94 | CAUSE_RANGEFAIL; | |
95 | time_str->tm_year = year - 1900; | |
96 | } | |
97 | ||
98 | if (mask & MONTH_VALID) | |
99 | { | |
100 | if (month < 1 || month > 12) | |
101 | CAUSE_RANGEFAIL; | |
102 | time_str->tm_mon = month - 1; | |
103 | } | |
104 | ||
105 | if (mask & DAY_VALID) | |
106 | { | |
107 | if (day < 1 || day > 31) | |
108 | CAUSE_RANGEFAIL; | |
109 | time_str->tm_mday = day; | |
110 | } | |
111 | ||
112 | if (mask & HOUR_VALID) | |
113 | { | |
114 | if (hour < 0 || hour > 23) | |
115 | CAUSE_RANGEFAIL; | |
116 | time_str->tm_hour = hour; | |
117 | } | |
118 | ||
119 | if (mask & MINUTE_VALID) | |
120 | { | |
121 | if (minute < 0 || minute > 59) | |
122 | CAUSE_RANGEFAIL; | |
123 | time_str->tm_min = minute; | |
124 | } | |
125 | ||
126 | if (mask & SECOND_VALID) | |
127 | { | |
128 | if (second < 0 || second > 59) | |
129 | CAUSE_RANGEFAIL; | |
130 | time_str->tm_sec = second; | |
131 | } | |
132 | ||
133 | /* do it */ | |
134 | time_str->tm_isdst = -1; | |
135 | if ((result = mktime (time_str)) == (time_t)-1) | |
136 | CAUSE_RANGEFAIL; | |
137 | ||
138 | return (unsigned long)result; | |
139 | } |