source: libcfa/src/time.cfa@ b10c39a0

ADT arm-eh ast-experimental cleanup-dtors enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr pthread-emulation qualifiedEnum
Last change on this file since b10c39a0 was ef346f7c, checked in by Peter A. Buhr <pabuhr@…>, 7 years ago

fix ostype
  • Property mode set to 100644
File size: 5.3 KB
Line 
1//
2// Cforall Version 1.0.0 Copyright (C) 2018 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// time.c --
8//
9// Author : Peter A. Buhr
10// Created On : Tue Mar 27 13:33:14 2018
11// Last Modified By : Peter A. Buhr
12// Last Modified On : Sun Dec 23 22:57:48 2018
13// Update Count : 57
14//
15
16#include "time.hfa"
17#include "iostream.hfa"
18#include <stdio.h> // snprintf
19#include <assert.h>
20
21static char * nanomsd( long int ns, char * buf ) { // most significant digits
22 snprintf( buf, 16, ".%09ld", ns );
23 int i;
24 for ( i = 9; buf[i] == '0' ; i -= 1 ); // find least significant digit
25 buf[i + 1] = '\0';
26 return buf;
27} // nanomsd
28
29
30//######################### Duration #########################
31
32
33forall( dtype ostype | ostream( ostype ) ) {
34 ostype & ?|?( ostype & os, Duration dur ) with( dur ) {
35 (ostype &)(os | tv / TIMEGRAN); // print seconds
36 long int ns = (tv < 0 ? -tv : tv) % TIMEGRAN; // compute nanoseconds
37 if ( ns != 0 ) { // some ?
38 char buf[16];
39 (ostype &)(os | nanomsd( ns, buf )); // print nanoseconds
40 } // if
41 return os;
42 } // ?|?
43
44 void ?|?( ostype & os, Duration dur ) with( dur ) {
45 (ostype &)(os | dur); nl( os );
46 } // ?|?
47} // distribution
48
49
50//######################### Time #########################
51
52
53#ifdef __CFA_DEBUG__
54#define CreateFmt "Attempt to create Time( year=%d (>=1970), month=%d (1-12), day=%d (1-31), hour=%d (0-23), min=%d (0-59), sec=%d (0-60), nsec=%d (0-999_999_999), " \
55 "which exceeds range 00:00:00 UTC, January 1, 1970 to 03:14:07 UTC, January 19, 2038."
56#endif // __CFA_DEBUG__
57
58void ?{}( Time & time, int year, int month, int day, int hour, int min, int sec, int nsec ) with( time ) {
59 tm tm;
60
61 tm.tm_isdst = -1; // let mktime determine if alternate timezone is in effect
62 tm.tm_year = year - 1900; // mktime uses 1900 as its starting point
63#ifdef __CFA_DEBUG__
64 if ( month < 1 || 12 < month ) {
65 abort( CreateFmt, year, month, day, hour, (int)min, sec, nsec );
66 } // if
67#endif // __CFA_DEBUG__
68 tm.tm_mon = month - 1; // mktime uses range 0-11
69#ifdef __CFA_DEBUG__
70 if ( day < 1 || 31 < day ) {
71 abort( CreateFmt, year, month, day, hour, (int)min, sec, nsec );
72 } // if
73#endif // __CFA_DEBUG__
74 tm.tm_mday = day; // mktime uses range 1-31
75 tm.tm_hour = hour;
76 tm.tm_min = min;
77 tm.tm_sec = sec;
78 time_t epochsec = mktime( &tm );
79#ifdef __CFA_DEBUG__
80 if ( epochsec == (time_t)-1 ) {
81 abort( CreateFmt, year, month, day, hour, (int)min, sec, nsec );
82 } // if
83#endif // __CFA_DEBUG__
84 tv = (int64_t)(epochsec) * TIMEGRAN + nsec; // convert to nanoseconds
85#ifdef __CFA_DEBUG__
86 if ( tv > 2147483647LL * TIMEGRAN ) { // between 00:00:00 UTC, January 1, 1970 and 03:14:07 UTC, January 19, 2038.
87 abort( CreateFmt, year, month, day, hour, (int)min, sec, nsec );
88 } // if
89#endif // __CFA_DEBUG__
90} // ?{}
91
92char * yy_mm_dd( Time time, char * buf ) with( time ) {
93 time_t s = tv / TIMEGRAN;
94 tm tm;
95 gmtime_r( &s, &tm ); // tm_mon <= 11, tm_mday <= 31
96#if defined(__GNUC__) && __GNUC__ >= 7
97#pragma GCC diagnostic push
98#pragma GCC diagnostic ignored "-Wformat-truncation"
99#endif
100 snprintf( buf, 9, "%02d/%02d/%02d", tm.tm_year % 99, tm.tm_mon + 1, tm.tm_mday );
101#if defined(__GNUC__) && __GNUC__ >= 7
102#pragma GCC diagnostic pop
103#endif
104 return buf;
105} // yy_mm_dd
106
107char * mm_dd_yy( Time time, char * buf ) with( time ) {
108 time_t s = tv / TIMEGRAN;
109 tm tm;
110 gmtime_r( &s, &tm ); // tm_mon <= 11, tm_mday <= 31
111#if defined(__GNUC__) && __GNUC__ >= 7
112#pragma GCC diagnostic push
113#pragma GCC diagnostic ignored "-Wformat-truncation"
114#endif
115 snprintf( buf, 9, "%02d/%02d/%02d", tm.tm_mon + 1, tm.tm_mday, tm.tm_year % 99 );
116#if defined(__GNUC__) && __GNUC__ >= 7
117#pragma GCC diagnostic pop
118#endif
119 return buf;
120} // mm_dd_yy
121
122char * dd_mm_yy( Time time, char * buf ) with( time ) {
123 time_t s = tv / TIMEGRAN;
124 tm tm;
125 gmtime_r( &s, &tm ); // tm_mon <= 11, tm_mday <= 31
126#if defined(__GNUC__) && __GNUC__ >= 7
127#pragma GCC diagnostic push
128#pragma GCC diagnostic ignored "-Wformat-truncation"
129#endif
130 snprintf( buf, 9, "%02d/%02d/%02d", tm.tm_mday, tm.tm_mon + 1, tm.tm_year % 99 );
131#if defined(__GNUC__) && __GNUC__ >= 7
132#pragma GCC diagnostic pop
133#endif
134 return buf;
135} // dd_mm_yy
136
137size_t strftime( char * buf, size_t size, const char * fmt, Time time ) with( time ) {
138 time_t s = tv / TIMEGRAN;
139 tm tm;
140 gmtime_r( &s, &tm );
141 return strftime( buf, size, fmt, &tm );
142} // strftime
143
144forall( dtype ostype | ostream( ostype ) ) {
145 ostype & ?|?( ostype & os, Time time ) with( time ) {
146 char buf[32]; // at least 26
147 time_t s = tv / TIMEGRAN;
148 ctime_r( &s, (char *)&buf ); // 26 characters: "Wed Jun 30 21:49:08 1993\n"
149 buf[24] = '\0'; // remove trailing '\n'
150 long int ns = (tv < 0 ? -tv : tv) % TIMEGRAN; // compute nanoseconds
151 if ( ns == 0 ) { // none ?
152 (ostype &)(os | buf); // print date/time/year
153 } else {
154 buf[19] = '\0'; // truncate to "Wed Jun 30 21:49:08"
155 char buf2[16];
156 nanomsd( ns, buf2 ); // compute nanoseconds
157 (ostype &)(os | buf | buf2 | ' ' | &buf[20]); // print date/time, nanoseconds and year
158 } // if
159 return os;
160 } // ?|?
161
162 void ?|?( ostype & os, Time time ) with( time ) {
163 (ostype &)(os | time); nl( os );
164 } // ?|?
165} // distribution
166
167// Local Variables: //
168// mode: c //
169// tab-width: 4 //
170// End: //
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