1 |
dpavlin |
1.1 |
package Time::Available; |
2 |
|
|
|
3 |
dpavlin |
1.3 |
use 5.001; |
4 |
dpavlin |
1.1 |
use strict; |
5 |
|
|
use warnings; |
6 |
dpavlin |
1.7 |
use Carp; |
7 |
dpavlin |
1.1 |
|
8 |
|
|
require Exporter; |
9 |
|
|
|
10 |
|
|
our @ISA = qw(Exporter); |
11 |
|
|
|
12 |
|
|
our %EXPORT_TAGS = ( |
13 |
|
|
'days' => [ qw( |
14 |
|
|
DAY_MONDAY |
15 |
|
|
DAY_TUESDAY |
16 |
|
|
DAY_WEDNESDAY |
17 |
|
|
DAY_THURSDAY |
18 |
|
|
DAY_FRIDAY |
19 |
|
|
DAY_SATURDAY |
20 |
|
|
DAY_SUNDAY |
21 |
|
|
DAY_WEEKDAY |
22 |
|
|
DAY_WEEKEND |
23 |
|
|
DAY_EVERYDAY |
24 |
dpavlin |
1.2 |
) ], |
25 |
|
|
'fmt_interval' => [ qw(fmt_interval) ] |
26 |
dpavlin |
1.1 |
); |
27 |
|
|
|
28 |
dpavlin |
1.2 |
our @EXPORT_OK = ( |
29 |
|
|
@{ $EXPORT_TAGS{'days'} }, |
30 |
|
|
@{ $EXPORT_TAGS{'fmt_interval'} } |
31 |
|
|
); |
32 |
dpavlin |
1.1 |
|
33 |
dpavlin |
1.2 |
our @EXPORT; # don't export anything by default! |
34 |
dpavlin |
1.1 |
|
35 |
|
|
our $VERSION = '0.01'; |
36 |
|
|
|
37 |
|
|
# define some constants used later |
38 |
|
|
use constant DAY_MONDAY => 0x01; |
39 |
|
|
use constant DAY_TUESDAY => 0x02; |
40 |
|
|
use constant DAY_WEDNESDAY => 0x04; |
41 |
|
|
use constant DAY_THURSDAY => 0x08; |
42 |
|
|
use constant DAY_FRIDAY => 0x10; |
43 |
|
|
use constant DAY_SATURDAY => 0x20; |
44 |
|
|
use constant DAY_SUNDAY => 0x40; |
45 |
|
|
use constant DAY_WEEKDAY => 0x1F; |
46 |
|
|
use constant DAY_WEEKEND => 0x60; |
47 |
|
|
use constant DAY_EVERYDAY => 0x7F; |
48 |
|
|
|
49 |
|
|
use constant SEC_PER_DAY => 86400; |
50 |
|
|
|
51 |
|
|
my $debug = 0; |
52 |
|
|
|
53 |
|
|
# |
54 |
|
|
# make new instance |
55 |
|
|
# |
56 |
|
|
sub new { |
57 |
|
|
my $class = shift; |
58 |
|
|
my $self = {}; |
59 |
|
|
bless($self, $class); |
60 |
|
|
$self->{ARGS} = {@_}; |
61 |
|
|
$debug = $self->{ARGS}->{DEBUG}; |
62 |
|
|
|
63 |
dpavlin |
1.7 |
croak("need start time") if (! $self->{ARGS}->{start}); |
64 |
dpavlin |
1.1 |
|
65 |
|
|
# calc start and stop seconds |
66 |
|
|
my ($hh,$mm,$ss) = split(/:/,$self->{ARGS}->{start},3); |
67 |
dpavlin |
1.5 |
print STDERR "new: start time ",$hh||0,":",$mm||0,":",$ss||0,"\n" if ($debug); |
68 |
dpavlin |
1.7 |
my $s = $hh * 3600 || croak("need at least hour specified for start time"); |
69 |
dpavlin |
1.1 |
$s += $mm * 60 if ($mm); |
70 |
|
|
$s += $ss if ($ss); |
71 |
|
|
$self->{start} = $s; |
72 |
|
|
|
73 |
dpavlin |
1.7 |
croak("need end time") if (! $self->{ARGS}->{end}); |
74 |
dpavlin |
1.1 |
|
75 |
|
|
($hh,$mm,$ss) = split(/:/,$self->{ARGS}->{end},3); |
76 |
dpavlin |
1.5 |
print STDERR "new: end time ",$hh||0,":",$mm||0,":",$ss||0,"\n" if ($debug); |
77 |
dpavlin |
1.7 |
$s = $hh * 3600 || croak("need at least hour specified for end time"); |
78 |
dpavlin |
1.1 |
$s += $mm * 60 if ($mm); |
79 |
|
|
$self->{end} = $s; |
80 |
|
|
|
81 |
dpavlin |
1.7 |
croak("need dayMask specified") if (! $self->{ARGS}->{dayMask}); |
82 |
dpavlin |
1.1 |
|
83 |
|
|
$self->{dayMask} = $self->{ARGS}->{dayMask}; |
84 |
|
|
|
85 |
|
|
$self ? return $self : return undef; |
86 |
|
|
} |
87 |
|
|
|
88 |
|
|
|
89 |
|
|
|
90 |
|
|
# |
91 |
|
|
# this sub (originally from Time::Avail) will return if day is applicable |
92 |
|
|
# |
93 |
|
|
|
94 |
dpavlin |
1.3 |
sub _dayOk($) { |
95 |
|
|
my $self = shift; |
96 |
|
|
my $day = shift || return; |
97 |
dpavlin |
1.1 |
|
98 |
dpavlin |
1.3 |
my $dayMask = $self->{dayMask}; |
99 |
dpavlin |
1.1 |
|
100 |
|
|
my $dayOk = 0; |
101 |
|
|
|
102 |
|
|
if( ( $day == 0 ) && ( $dayMask & DAY_SUNDAY ) ) { |
103 |
|
|
$dayOk = 1; |
104 |
|
|
} elsif( ( $day == 1) && ( $dayMask & DAY_MONDAY ) ) { |
105 |
|
|
$dayOk = 1; |
106 |
|
|
} elsif( ($day == 2) && ( $dayMask & DAY_TUESDAY ) ) { |
107 |
|
|
$dayOk = 1; |
108 |
|
|
} elsif( ($day == 3) && ( $dayMask & DAY_WEDNESDAY ) ) { |
109 |
|
|
$dayOk = 1; |
110 |
|
|
} elsif( ( $day == 4) && ( $dayMask & DAY_THURSDAY ) ) { |
111 |
|
|
$dayOk = 1; |
112 |
|
|
} elsif( ( $day == 5 ) && ( $dayMask & DAY_FRIDAY ) ) { |
113 |
|
|
$dayOk = 1; |
114 |
|
|
} elsif( ( $day == 6 ) && ( $dayMask & DAY_SATURDAY ) ) { |
115 |
|
|
$dayOk = 1; |
116 |
|
|
} |
117 |
|
|
|
118 |
|
|
print STDERR "day: $day dayMask: ",unpack("B32", pack("N", $dayMask))," ok: $dayOk\n" if ($debug); |
119 |
|
|
|
120 |
|
|
return $dayOk; |
121 |
|
|
} |
122 |
|
|
|
123 |
|
|
|
124 |
|
|
# |
125 |
|
|
# this will return number of seconds that service is available if passed |
126 |
|
|
# uptime of service |
127 |
|
|
# |
128 |
|
|
|
129 |
|
|
sub uptime { |
130 |
|
|
my $self = shift; |
131 |
|
|
|
132 |
dpavlin |
1.7 |
my $time = shift || croak "need uptime timestamp to calculate uptime"; |
133 |
dpavlin |
1.1 |
|
134 |
dpavlin |
1.3 |
# calculate offset -- that is number of seconds since midnight |
135 |
dpavlin |
1.6 |
my @lt = gmtime($time); |
136 |
|
|
|
137 |
|
|
# check if day falls into dayMask |
138 |
|
|
return 0 if (! $self->_dayOk($lt[6]) ); |
139 |
|
|
|
140 |
dpavlin |
1.3 |
my $offset = $lt[2]; # hour |
141 |
|
|
$offset *= 60; # convert to minutes |
142 |
|
|
$offset += $lt[1]; # minutes |
143 |
|
|
$offset *= 60; # convert to seconds |
144 |
|
|
$offset += $lt[0]; |
145 |
|
|
|
146 |
dpavlin |
1.1 |
my $s=0; |
147 |
|
|
|
148 |
|
|
my $start = $self->{start}; |
149 |
|
|
my $end = $self->{end}; |
150 |
|
|
|
151 |
dpavlin |
1.6 |
print STDERR "start: $start end: $end time: $offset [$lt[2]:$lt[1]:$lt[0]]\n" if ($debug); |
152 |
dpavlin |
1.1 |
|
153 |
dpavlin |
1.3 |
if ( $end > $start ) { |
154 |
|
|
if ($offset < $start) { |
155 |
dpavlin |
1.1 |
$s = $end - $start; |
156 |
dpavlin |
1.3 |
} elsif ($offset < $end) { |
157 |
|
|
$s = $end - $offset; |
158 |
dpavlin |
1.1 |
} |
159 |
dpavlin |
1.3 |
} elsif ( $start > $end ) { # over midnight |
160 |
|
|
if ( $offset < $end ) { |
161 |
|
|
if ( $offset < $start) { |
162 |
|
|
$s = SEC_PER_DAY - $start + $end - $offset; |
163 |
dpavlin |
1.1 |
} else { |
164 |
|
|
$s = SEC_PER_DAY - $start + $end; |
165 |
|
|
} |
166 |
|
|
} else { |
167 |
dpavlin |
1.3 |
if ( $offset < $start ) { |
168 |
dpavlin |
1.1 |
$s = SEC_PER_DAY - $start; |
169 |
|
|
} else { |
170 |
dpavlin |
1.3 |
$s = SEC_PER_DAY - $offset; |
171 |
dpavlin |
1.1 |
} |
172 |
|
|
} |
173 |
|
|
} |
174 |
|
|
|
175 |
|
|
return $s; |
176 |
|
|
} |
177 |
|
|
|
178 |
dpavlin |
1.2 |
# |
179 |
dpavlin |
1.6 |
# this will return number of seconds that service is available if passed |
180 |
|
|
# downtime of service |
181 |
|
|
# |
182 |
|
|
|
183 |
|
|
sub downtime { |
184 |
|
|
my $self = shift; |
185 |
|
|
|
186 |
dpavlin |
1.7 |
my $time = shift || croak "need downtime timestamp to calculate uptime"; |
187 |
dpavlin |
1.6 |
|
188 |
|
|
# calculate offset -- that is number of seconds since midnight |
189 |
|
|
my @lt = gmtime($time); |
190 |
|
|
|
191 |
|
|
# check if day falls into dayMask |
192 |
|
|
return 0 if (! $self->_dayOk($lt[6]) ); |
193 |
|
|
|
194 |
|
|
my $offset = $lt[2]; # hour |
195 |
|
|
$offset *= 60; # convert to minutes |
196 |
|
|
$offset += $lt[1]; # minutes |
197 |
|
|
$offset *= 60; # convert to seconds |
198 |
|
|
$offset += $lt[0]; |
199 |
|
|
|
200 |
|
|
my $s=0; |
201 |
|
|
|
202 |
|
|
my $start = $self->{start}; |
203 |
|
|
my $end = $self->{end}; |
204 |
|
|
|
205 |
|
|
print STDERR "start: $start end: $end time: $offset [$lt[2]:$lt[1]:$lt[0]]\n" if ($debug); |
206 |
|
|
|
207 |
|
|
if ( $end > $start ) { |
208 |
|
|
if ($offset > $start && $offset <= $end) { |
209 |
|
|
$s = $end - $offset; |
210 |
|
|
} elsif ($offset < $start) { |
211 |
|
|
$s = $end - $start; |
212 |
|
|
} |
213 |
|
|
} elsif ( $start > $end ) { # over midnight |
214 |
|
|
if ( $offset < $end ) { |
215 |
|
|
if ( $offset < $start) { |
216 |
|
|
$s = $offset; |
217 |
|
|
} else { |
218 |
|
|
$s = 0; |
219 |
|
|
} |
220 |
|
|
} else { |
221 |
|
|
if ( $offset < $start ) { |
222 |
|
|
$s = SEC_PER_DAY - $end; |
223 |
|
|
} else { |
224 |
|
|
$s = SEC_PER_DAY - $end + $start - $offset; |
225 |
|
|
} |
226 |
|
|
} |
227 |
|
|
} |
228 |
|
|
|
229 |
|
|
return $s; |
230 |
|
|
} |
231 |
|
|
|
232 |
|
|
# |
233 |
dpavlin |
1.2 |
# this auxillary function will pretty-format interval in [days]d hh:mm:ss |
234 |
|
|
# |
235 |
|
|
|
236 |
|
|
sub fmt_interval { |
237 |
|
|
my $s = shift || 0; |
238 |
|
|
my $out = ""; |
239 |
|
|
|
240 |
|
|
my $d = int($s/(24*60*60)); |
241 |
|
|
$s = $s % (24*60*60); |
242 |
|
|
my $h = int($s/(60*60)); |
243 |
|
|
$s = $s % (60*60); |
244 |
|
|
my $m = int($s/60); |
245 |
|
|
$s = $s % 60; |
246 |
|
|
|
247 |
|
|
$out .= $d."d " if ($d > 0); |
248 |
dpavlin |
1.1 |
|
249 |
dpavlin |
1.2 |
$out .= sprintf("%02d:%02d:%02d",$h,$m,$s); |
250 |
|
|
|
251 |
|
|
return $out; |
252 |
dpavlin |
1.5 |
} |
253 |
|
|
|
254 |
|
|
# |
255 |
|
|
# this function will calculate uptime for some interval |
256 |
|
|
# |
257 |
|
|
|
258 |
|
|
sub interval { |
259 |
|
|
my $self = shift; |
260 |
dpavlin |
1.7 |
my $from = shift || croak "need start time for interval"; |
261 |
|
|
my $to = shift || croak "need end time for interval"; |
262 |
dpavlin |
1.5 |
|
263 |
|
|
print STDERR "from:\t$from\t",scalar gmtime($from),"\n" if ($debug); |
264 |
|
|
print STDERR "to:\t$to\t",scalar gmtime($to),"\n" if ($debug); |
265 |
|
|
|
266 |
|
|
my $total = 0; |
267 |
|
|
|
268 |
|
|
# calc first day availability |
269 |
dpavlin |
1.6 |
print STDERR "t:\t$from\t",scalar gmtime($from),"\n" if ($debug); |
270 |
dpavlin |
1.5 |
$total += $self->uptime($from); |
271 |
|
|
|
272 |
dpavlin |
1.6 |
print STDERR "total: $total (first)\n" if ($debug); |
273 |
dpavlin |
1.5 |
|
274 |
|
|
# add all whole days |
275 |
|
|
|
276 |
|
|
my $sec_in_day = $self->sec_in_interval; |
277 |
|
|
my $day = 86400; # 24*60*60 |
278 |
|
|
|
279 |
|
|
my $loop_start_time = int($from/$day)*$day + $day; |
280 |
|
|
my $loop_end_time = int($to/$day)*$day - $day; |
281 |
|
|
|
282 |
|
|
print STDERR "loop (start - end): $loop_start_time - $loop_end_time\n" if ($debug); |
283 |
|
|
|
284 |
|
|
for (my $t = $loop_start_time; $t <= $loop_end_time; $t += $day) { |
285 |
|
|
print STDERR "t:\t$t\t",scalar gmtime($t),"\n" if ($debug); |
286 |
|
|
$total += $sec_in_day if ($self->day_in_interval($t)); |
287 |
dpavlin |
1.6 |
print STDERR "total: $total (loop)\n" if ($debug); |
288 |
dpavlin |
1.5 |
} |
289 |
|
|
|
290 |
|
|
# add rest of last day |
291 |
dpavlin |
1.6 |
print STDERR "t:\t$to\t",scalar gmtime($to),"\n" if ($debug); |
292 |
|
|
|
293 |
dpavlin |
1.7 |
$total = abs($total - $self->downtime($to)); |
294 |
dpavlin |
1.5 |
print STDERR "total: $total (final)\n" if ($debug); |
295 |
|
|
|
296 |
|
|
return $total; |
297 |
|
|
} |
298 |
|
|
|
299 |
|
|
# |
300 |
|
|
# this function will check if day falls into interval |
301 |
|
|
# |
302 |
|
|
|
303 |
|
|
sub day_in_interval { |
304 |
|
|
my $self = shift; |
305 |
|
|
|
306 |
dpavlin |
1.7 |
my $time = shift || croak "need timestamp to check if day is in interval"; |
307 |
dpavlin |
1.5 |
|
308 |
dpavlin |
1.6 |
my @lt = gmtime($time); |
309 |
dpavlin |
1.5 |
return $self->_dayOk($lt[6]); |
310 |
|
|
} |
311 |
|
|
|
312 |
|
|
# |
313 |
|
|
# return seconds in defined interval |
314 |
|
|
# |
315 |
|
|
|
316 |
|
|
sub sec_in_interval { |
317 |
|
|
my $self = shift; |
318 |
|
|
|
319 |
|
|
# over midnight? |
320 |
|
|
if ($self->{start} > $self->{end}) { |
321 |
|
|
return(86400 - $self->{start} + $self->{end}); |
322 |
|
|
} else { |
323 |
|
|
return($self->{end} - $self->{start}); |
324 |
|
|
} |
325 |
dpavlin |
1.2 |
} |
326 |
dpavlin |
1.1 |
|
327 |
|
|
1; |
328 |
|
|
__END__ |
329 |
|
|
|
330 |
|
|
=head1 NAME |
331 |
|
|
|
332 |
|
|
Time::Available - Perl extension to calculate time availability |
333 |
|
|
|
334 |
|
|
=head1 SYNOPSIS |
335 |
|
|
|
336 |
|
|
use Time::Available; |
337 |
|
|
|
338 |
|
|
# init interval and dayMask |
339 |
|
|
my $interval = new( start=>'07:00', stop=>'17:00', |
340 |
|
|
dayMask=> Time::Available::DAY_WEEKDAY ); |
341 |
|
|
|
342 |
|
|
# alternative way to init module using exporting of days |
343 |
|
|
use Time::Available qw(:days); |
344 |
|
|
my $interval = new( start=>'07:00', stop=>'17:00', |
345 |
|
|
dayMask=> DAY_WEEKDAY ); |
346 |
|
|
|
347 |
|
|
# calculate current availability in seconds |
348 |
|
|
print $interval->uptime(localtime); |
349 |
|
|
|
350 |
|
|
# calculate availablity in seconds from interval of uptime |
351 |
|
|
print $interval->interval($utime1,$utime2); |
352 |
|
|
|
353 |
dpavlin |
1.2 |
# pretty print interval data (this will produce output '1d 11:11:11') |
354 |
|
|
use Time::Available qw(:fmt_interval); |
355 |
|
|
print fmt_interval(126671); |
356 |
|
|
|
357 |
dpavlin |
1.1 |
=head1 DESCRIPTION |
358 |
|
|
|
359 |
|
|
Time::Available is used to calculate availability of some resource if start |
360 |
|
|
end end time of availability is available. That availability is calculated |
361 |
|
|
relative to some interval which is defined when new instance of module is |
362 |
|
|
created. |
363 |
|
|
|
364 |
|
|
Start and end dates must be specified in 24-hour format. You can specify |
365 |
|
|
just hour, hour:minute or hour:minute:seconds format. |
366 |
|
|
|
367 |
|
|
The B<dayMask> parameter is constructed by OR'ing together one or more of |
368 |
|
|
the following dayMask constants: |
369 |
|
|
|
370 |
|
|
=over 4 |
371 |
|
|
|
372 |
|
|
=item * |
373 |
dpavlin |
1.4 |
Time::Available::DAY_MONDAY |
374 |
dpavlin |
1.1 |
|
375 |
|
|
=item * |
376 |
dpavlin |
1.4 |
Time::Available::DAY_TUESDAY |
377 |
dpavlin |
1.1 |
|
378 |
|
|
=item * |
379 |
dpavlin |
1.4 |
Time::Available::DAY_WEDNESDAY |
380 |
dpavlin |
1.1 |
|
381 |
|
|
=item * |
382 |
dpavlin |
1.4 |
Time::Available::DAY_THURSDAY |
383 |
dpavlin |
1.1 |
|
384 |
|
|
=item * |
385 |
dpavlin |
1.4 |
Time::Available::DAY_FRIDAY |
386 |
dpavlin |
1.1 |
|
387 |
|
|
=item * |
388 |
dpavlin |
1.4 |
Time::Available::DAY_SATURDAY |
389 |
dpavlin |
1.1 |
|
390 |
|
|
=item * |
391 |
dpavlin |
1.4 |
Time::Available::DAY_SUNDAY |
392 |
dpavlin |
1.1 |
|
393 |
|
|
=item * |
394 |
dpavlin |
1.4 |
Time::Available::DAY_WEEKDAY |
395 |
dpavlin |
1.1 |
|
396 |
|
|
=item * |
397 |
dpavlin |
1.4 |
Time::Available::DAY_WEEKEND |
398 |
dpavlin |
1.1 |
|
399 |
|
|
=item * |
400 |
dpavlin |
1.4 |
Time::Available::DAY_EVERYDAY |
401 |
dpavlin |
1.1 |
|
402 |
|
|
=back |
403 |
|
|
|
404 |
|
|
FIXME |
405 |
|
|
|
406 |
|
|
=head2 EXPORT |
407 |
|
|
|
408 |
dpavlin |
1.2 |
None by default. |
409 |
|
|
|
410 |
|
|
If you specify B<:days>, Time::Available will export all |
411 |
dpavlin |
1.1 |
DAY_* constraints to your enviroment (causing possible pollution of name |
412 |
|
|
space). You have been warned. |
413 |
|
|
|
414 |
dpavlin |
1.2 |
With B<:fmt_interval> it will include function B<fmt_interval> which will |
415 |
|
|
pretty-format interval into [days]d hh:mm:ss. |
416 |
|
|
|
417 |
dpavlin |
1.1 |
|
418 |
|
|
=head1 HISTORY |
419 |
|
|
|
420 |
|
|
=over 8 |
421 |
|
|
|
422 |
|
|
=item 0.01 |
423 |
|
|
|
424 |
|
|
Original version; based somewhat on Time::Avail code |
425 |
|
|
|
426 |
|
|
=back |
427 |
|
|
|
428 |
|
|
=head1 BUGS |
429 |
|
|
|
430 |
|
|
=over 8 |
431 |
|
|
|
432 |
|
|
=item * |
433 |
|
|
Allow arbitary (array?) of holidays to be included. |
434 |
|
|
|
435 |
|
|
=back |
436 |
|
|
|
437 |
|
|
=head1 SEE ALSO |
438 |
|
|
|
439 |
|
|
Time::Avail is CPAN module that started it all. However, it lacked |
440 |
|
|
calculating of availability of some interval and precision in seconds, so |
441 |
|
|
this module was born. |
442 |
|
|
|
443 |
|
|
More information about this module might be found on |
444 |
dpavlin |
1.3 |
http://www.rot13.org/~dpavlin/projects.html#cpan |
445 |
dpavlin |
1.1 |
|
446 |
|
|
=head1 AUTHOR |
447 |
|
|
|
448 |
|
|
Dobrica Pavlinusic, E<lt>dpavlin@rot13.orgE<gt> |
449 |
|
|
|
450 |
|
|
=head1 COPYRIGHT AND LICENSE |
451 |
|
|
|
452 |
|
|
Copyright (C) 2003 by Dobrica Pavlinusic |
453 |
|
|
|
454 |
|
|
This library is free software; you can redistribute it and/or modify |
455 |
|
|
it under the same terms as Perl itself. |
456 |
|
|
|
457 |
|
|
=cut |
458 |
|
|
|
459 |
|
|
|
460 |
|
|
1; |