1 /****************************************************************************
2 * *
3 * GNAT COMPILER COMPONENTS *
4 * *
5 * C A L *
6 * *
7 * C Implementation File *
8 * *
9 * Copyright (C) 1992-2009, Free Software Foundation, Inc. *
10 * *
11 * GNAT is free software; you can redistribute it and/or modify it under *
12 * terms of the GNU General Public License as published by the Free Soft- *
13 * ware Foundation; either version 3, or (at your option) any later ver- *
14 * sion. GNAT is distributed in the hope that it will be useful, but WITH- *
15 * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY *
16 * or FITNESS FOR A PARTICULAR PURPOSE. *
17 * *
18 * As a special exception under Section 7 of GPL version 3, you are granted *
19 * additional permissions described in the GCC Runtime Library Exception, *
20 * version 3.1, as published by the Free Software Foundation. *
21 * *
22 * You should have received a copy of the GNU General Public License and *
23 * a copy of the GCC Runtime Library Exception along with this program; *
24 * see the files COPYING3 and COPYING.RUNTIME respectively. If not, see *
25 * <http://www.gnu.org/licenses/>. *
26 * *
27 * GNAT was originally developed by the GNAT team at New York University. *
28 * Extensive contributions were provided by Ada Core Technologies Inc. *
29 * *
30 ****************************************************************************/
31
32 /* This file contains those routines named by Import pragmas in package */
33 /* GNAT.Calendar. It is used to do Duration to timeval conversion. */
34 /* These are simple wrappers function to abstract the fact that the C */
35 /* struct timeval fields type are not normalized (they are generally */
36 /* defined as int or long values). */
37
38 #if defined(VMS) || defined(__nucleus__)
39
40 /* this is temporary code to avoid build failure under VMS */
41
42 void
__gnat_timeval_to_duration(void * t,long * sec,long * usec)43 __gnat_timeval_to_duration (void *t, long *sec, long *usec)
44 {
45 }
46
47 void
__gnat_duration_to_timeval(long sec,long usec,void * t)48 __gnat_duration_to_timeval (long sec, long usec, void *t)
49 {
50 }
51
52 #else
53
54 #if defined (__vxworks)
55 #ifdef __RTP__
56 #include <time.h>
57 #include <version.h>
58 #if (_WRS_VXWORKS_MINOR != 0)
59 #include <sys/time.h>
60 #endif
61 #else
62 #include <sys/times.h>
63 #endif
64 #elif defined (__nucleus__)
65 #include <time.h>
66 #else
67 #include <sys/time.h>
68 #endif
69
70 #ifdef __MINGW32__
71 #include "mingw32.h"
72 #if STD_MINGW
73 #include <winsock.h>
74 #endif
75 #endif
76
77 void
__gnat_timeval_to_duration(struct timeval * t,long * sec,long * usec)78 __gnat_timeval_to_duration (struct timeval *t, long *sec, long *usec)
79 {
80 *sec = (long) t->tv_sec;
81 *usec = (long) t->tv_usec;
82 }
83
84 void
__gnat_duration_to_timeval(long sec,long usec,struct timeval * t)85 __gnat_duration_to_timeval (long sec, long usec, struct timeval *t)
86 {
87 /* here we are doing implicit conversion from a long to the struct timeval
88 fields types. */
89
90 t->tv_sec = sec;
91 t->tv_usec = usec;
92 }
93 #endif
94
95 #ifdef __alpha_vxworks
96 #include "vxWorks.h"
97 #elif defined (__vxworks)
98 #include <types/vxTypesOld.h>
99 #endif
100
101 /* Return the value of the "time" C library function. We always return
102 a long and do it this way to avoid problems with not knowing
103 what time_t is on the target. */
104
105 long
gnat_time(void)106 gnat_time (void)
107 {
108 return time (0);
109 }
110