1 |
dpavlin |
1.1 |
package Time::Available; |
2 |
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3 |
dpavlin |
1.3 |
use 5.001; |
4 |
dpavlin |
1.1 |
use strict; |
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use warnings; |
6 |
dpavlin |
1.7 |
use Carp; |
7 |
dpavlin |
1.8 |
use Time::Local; |
8 |
dpavlin |
1.1 |
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require Exporter; |
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our @ISA = qw(Exporter); |
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our %EXPORT_TAGS = ( |
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'days' => [ qw( |
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DAY_MONDAY |
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DAY_TUESDAY |
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DAY_WEDNESDAY |
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DAY_THURSDAY |
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DAY_FRIDAY |
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DAY_SATURDAY |
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DAY_SUNDAY |
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DAY_WEEKDAY |
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DAY_WEEKEND |
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DAY_EVERYDAY |
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dpavlin |
1.2 |
) ], |
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'fmt_interval' => [ qw(fmt_interval) ] |
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dpavlin |
1.1 |
); |
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dpavlin |
1.2 |
our @EXPORT_OK = ( |
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@{ $EXPORT_TAGS{'days'} }, |
31 |
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@{ $EXPORT_TAGS{'fmt_interval'} } |
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); |
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dpavlin |
1.1 |
|
34 |
dpavlin |
1.2 |
our @EXPORT; # don't export anything by default! |
35 |
dpavlin |
1.1 |
|
36 |
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our $VERSION = '0.01'; |
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38 |
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# define some constants used later |
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use constant DAY_MONDAY => 0x01; |
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use constant DAY_TUESDAY => 0x02; |
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use constant DAY_WEDNESDAY => 0x04; |
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use constant DAY_THURSDAY => 0x08; |
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use constant DAY_FRIDAY => 0x10; |
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use constant DAY_SATURDAY => 0x20; |
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use constant DAY_SUNDAY => 0x40; |
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use constant DAY_WEEKDAY => 0x1F; |
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use constant DAY_WEEKEND => 0x60; |
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use constant DAY_EVERYDAY => 0x7F; |
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50 |
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use constant SEC_PER_DAY => 86400; |
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52 |
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my $debug = 0; |
53 |
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54 |
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# |
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# make new instance |
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# |
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sub new { |
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my $class = shift; |
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my $self = {}; |
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bless($self, $class); |
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$self->{ARGS} = {@_}; |
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$debug = $self->{ARGS}->{DEBUG}; |
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64 |
dpavlin |
1.7 |
croak("need start time") if (! $self->{ARGS}->{start}); |
65 |
dpavlin |
1.1 |
|
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# calc start and stop seconds |
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my ($hh,$mm,$ss) = split(/:/,$self->{ARGS}->{start},3); |
68 |
dpavlin |
1.5 |
print STDERR "new: start time ",$hh||0,":",$mm||0,":",$ss||0,"\n" if ($debug); |
69 |
dpavlin |
1.8 |
croak("need at least hour specified for start time") if (! $hh); |
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$mm |= 0; |
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$ss |= 0; |
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$self->{start_arr} = [$ss,$mm,$hh]; |
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my $start = $hh; |
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$start *= 60; |
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$start += $mm; |
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$start *= 60; |
78 |
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$start += $ss; |
79 |
dpavlin |
1.1 |
|
80 |
dpavlin |
1.7 |
croak("need end time") if (! $self->{ARGS}->{end}); |
81 |
dpavlin |
1.1 |
|
82 |
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($hh,$mm,$ss) = split(/:/,$self->{ARGS}->{end},3); |
83 |
dpavlin |
1.5 |
print STDERR "new: end time ",$hh||0,":",$mm||0,":",$ss||0,"\n" if ($debug); |
84 |
dpavlin |
1.8 |
croak("need at least hour specified for end time") if (! $hh); |
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$mm |= 0; |
86 |
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$ss |= 0; |
87 |
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$self->{end_arr} = [$ss,$mm,$hh]; |
88 |
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89 |
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my $end = $hh; |
90 |
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$end *= 60; |
91 |
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$end += $mm; |
92 |
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$end *= 60; |
93 |
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$end += $ss; |
94 |
dpavlin |
1.1 |
|
95 |
dpavlin |
1.7 |
croak("need dayMask specified") if (! $self->{ARGS}->{dayMask}); |
96 |
dpavlin |
1.1 |
|
97 |
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$self->{dayMask} = $self->{ARGS}->{dayMask}; |
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99 |
dpavlin |
1.8 |
# over midnight? |
100 |
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if ($start > $end) { |
101 |
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$self->{sec_in_interval} = (86400 - $start + $end); |
102 |
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} else { |
103 |
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$self->{sec_in_interval} = ($end - $start); |
104 |
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} |
105 |
dpavlin |
1.1 |
$self ? return $self : return undef; |
106 |
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} |
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# |
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# this sub (originally from Time::Avail) will return if day is applicable |
110 |
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# |
111 |
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112 |
dpavlin |
1.3 |
sub _dayOk($) { |
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my $self = shift; |
114 |
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my $day = shift || return; |
115 |
dpavlin |
1.1 |
|
116 |
dpavlin |
1.3 |
my $dayMask = $self->{dayMask}; |
117 |
dpavlin |
1.1 |
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118 |
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my $dayOk = 0; |
119 |
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120 |
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if( ( $day == 0 ) && ( $dayMask & DAY_SUNDAY ) ) { |
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$dayOk = 1; |
122 |
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} elsif( ( $day == 1) && ( $dayMask & DAY_MONDAY ) ) { |
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$dayOk = 1; |
124 |
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} elsif( ($day == 2) && ( $dayMask & DAY_TUESDAY ) ) { |
125 |
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$dayOk = 1; |
126 |
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} elsif( ($day == 3) && ( $dayMask & DAY_WEDNESDAY ) ) { |
127 |
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$dayOk = 1; |
128 |
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} elsif( ( $day == 4) && ( $dayMask & DAY_THURSDAY ) ) { |
129 |
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$dayOk = 1; |
130 |
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} elsif( ( $day == 5 ) && ( $dayMask & DAY_FRIDAY ) ) { |
131 |
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$dayOk = 1; |
132 |
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} elsif( ( $day == 6 ) && ( $dayMask & DAY_SATURDAY ) ) { |
133 |
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$dayOk = 1; |
134 |
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} |
135 |
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136 |
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print STDERR "day: $day dayMask: ",unpack("B32", pack("N", $dayMask))," ok: $dayOk\n" if ($debug); |
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138 |
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return $dayOk; |
139 |
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} |
140 |
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141 |
dpavlin |
1.8 |
# |
142 |
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# calculate start and end of interval in given day |
143 |
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# |
144 |
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145 |
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sub _start { |
146 |
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my $self = shift; |
147 |
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my $t = shift || croak "_start needs timestap"; |
148 |
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149 |
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my @lt = localtime($t); |
150 |
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$lt[0] = $self->{start_arr}[0]; |
151 |
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$lt[1] = $self->{start_arr}[1]; |
152 |
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$lt[2] = $self->{start_arr}[2]; |
153 |
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return timelocal(@lt); |
154 |
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} |
155 |
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156 |
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sub _end { |
157 |
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my $self = shift; |
158 |
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my $t = shift || croak "_end needs timestap"; |
159 |
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160 |
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my @lt = localtime($t); |
161 |
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$lt[0] = $self->{end_arr}[0]; |
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$lt[1] = $self->{end_arr}[1]; |
163 |
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$lt[2] = $self->{end_arr}[2]; |
164 |
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return timelocal(@lt); |
165 |
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} |
166 |
dpavlin |
1.1 |
|
167 |
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# |
168 |
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# this will return number of seconds that service is available if passed |
169 |
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# uptime of service |
170 |
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# |
171 |
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172 |
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sub uptime { |
173 |
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my $self = shift; |
174 |
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175 |
dpavlin |
1.7 |
my $time = shift || croak "need uptime timestamp to calculate uptime"; |
176 |
dpavlin |
1.1 |
|
177 |
dpavlin |
1.3 |
# calculate offset -- that is number of seconds since midnight |
178 |
dpavlin |
1.8 |
my @lt = localtime($time); |
179 |
dpavlin |
1.6 |
|
180 |
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# check if day falls into dayMask |
181 |
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return 0 if (! $self->_dayOk($lt[6]) ); |
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183 |
dpavlin |
1.1 |
my $s=0; |
184 |
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185 |
dpavlin |
1.8 |
my $start = $self->_start($time); |
186 |
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my $end = $self->_end($time); |
187 |
dpavlin |
1.1 |
|
188 |
dpavlin |
1.8 |
print STDERR "start: $start end: $end time: $time [$lt[2]:$lt[1]:$lt[0]]\n" if ($debug); |
189 |
dpavlin |
1.1 |
|
190 |
dpavlin |
1.3 |
if ( $end > $start ) { |
191 |
dpavlin |
1.8 |
if ($time < $start) { |
192 |
dpavlin |
1.1 |
$s = $end - $start; |
193 |
dpavlin |
1.8 |
} elsif ($time < $end) { |
194 |
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$s = $end - $time; |
195 |
dpavlin |
1.1 |
} |
196 |
dpavlin |
1.3 |
} elsif ( $start > $end ) { # over midnight |
197 |
dpavlin |
1.8 |
if ( $time < $end ) { |
198 |
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if ( $time < $start) { |
199 |
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$s = SEC_PER_DAY - $start + $end - $time; |
200 |
dpavlin |
1.1 |
} else { |
201 |
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$s = SEC_PER_DAY - $start + $end; |
202 |
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} |
203 |
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} else { |
204 |
dpavlin |
1.8 |
if ( $time < $start ) { |
205 |
dpavlin |
1.1 |
$s = SEC_PER_DAY - $start; |
206 |
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} else { |
207 |
dpavlin |
1.8 |
$s = SEC_PER_DAY - $time; |
208 |
dpavlin |
1.1 |
} |
209 |
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} |
210 |
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} |
211 |
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212 |
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return $s; |
213 |
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} |
214 |
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215 |
dpavlin |
1.2 |
# |
216 |
dpavlin |
1.6 |
# this will return number of seconds that service is available if passed |
217 |
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# downtime of service |
218 |
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# |
219 |
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220 |
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sub downtime { |
221 |
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my $self = shift; |
222 |
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223 |
dpavlin |
1.7 |
my $time = shift || croak "need downtime timestamp to calculate uptime"; |
224 |
dpavlin |
1.6 |
|
225 |
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# calculate offset -- that is number of seconds since midnight |
226 |
dpavlin |
1.8 |
my @lt = localtime($time); |
227 |
dpavlin |
1.6 |
|
228 |
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# check if day falls into dayMask |
229 |
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return 0 if (! $self->_dayOk($lt[6]) ); |
230 |
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231 |
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my $s=0; |
232 |
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233 |
dpavlin |
1.8 |
my $start = $self->_start($time); |
234 |
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my $end = $self->_end($time); |
235 |
dpavlin |
1.6 |
|
236 |
dpavlin |
1.8 |
print STDERR "start: $start end: $end time: $time [$lt[2]:$lt[1]:$lt[0]]\n" if ($debug); |
237 |
dpavlin |
1.6 |
|
238 |
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if ( $end > $start ) { |
239 |
dpavlin |
1.8 |
if ($time > $start && $time <= $end) { |
240 |
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$s = $end - $time; |
241 |
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} elsif ($time < $start) { |
242 |
dpavlin |
1.6 |
$s = $end - $start; |
243 |
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} |
244 |
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} elsif ( $start > $end ) { # over midnight |
245 |
dpavlin |
1.8 |
if ( $time < $end ) { |
246 |
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if ( $time < $start) { |
247 |
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$s = $time; |
248 |
dpavlin |
1.6 |
} else { |
249 |
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$s = 0; |
250 |
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} |
251 |
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} else { |
252 |
dpavlin |
1.8 |
if ( $time < $start ) { |
253 |
dpavlin |
1.6 |
$s = SEC_PER_DAY - $end; |
254 |
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} else { |
255 |
dpavlin |
1.8 |
$s = SEC_PER_DAY - $end + $start - $time; |
256 |
dpavlin |
1.6 |
} |
257 |
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} |
258 |
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} |
259 |
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260 |
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return $s; |
261 |
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} |
262 |
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263 |
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# |
264 |
dpavlin |
1.2 |
# this auxillary function will pretty-format interval in [days]d hh:mm:ss |
265 |
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# |
266 |
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267 |
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sub fmt_interval { |
268 |
dpavlin |
1.8 |
my $int = shift || 0; |
269 |
dpavlin |
1.2 |
my $out = ""; |
270 |
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|
271 |
dpavlin |
1.8 |
my $s=$int; |
272 |
dpavlin |
1.2 |
my $d = int($s/(24*60*60)); |
273 |
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$s = $s % (24*60*60); |
274 |
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my $h = int($s/(60*60)); |
275 |
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$s = $s % (60*60); |
276 |
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my $m = int($s/60); |
277 |
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$s = $s % 60; |
278 |
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279 |
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$out .= $d."d " if ($d > 0); |
280 |
dpavlin |
1.1 |
|
281 |
dpavlin |
1.8 |
if ($debug) { |
282 |
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$out .= sprintf("%02d:%02d:%02d [%d]",$h,$m,$s, $int); |
283 |
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} else { |
284 |
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$out .= sprintf("%02d:%02d:%02d",$h,$m,$s); |
285 |
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} |
286 |
dpavlin |
1.2 |
|
287 |
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return $out; |
288 |
dpavlin |
1.5 |
} |
289 |
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290 |
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# |
291 |
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# this function will calculate uptime for some interval |
292 |
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# |
293 |
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294 |
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sub interval { |
295 |
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my $self = shift; |
296 |
dpavlin |
1.7 |
my $from = shift || croak "need start time for interval"; |
297 |
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my $to = shift || croak "need end time for interval"; |
298 |
dpavlin |
1.5 |
|
299 |
dpavlin |
1.8 |
print STDERR "from:\t$from\t",scalar localtime($from),"\n" if ($debug); |
300 |
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print STDERR "to:\t$to\t",scalar localtime($to),"\n" if ($debug); |
301 |
dpavlin |
1.5 |
|
302 |
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my $total = 0; |
303 |
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304 |
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# calc first day availability |
305 |
dpavlin |
1.8 |
print STDERR "t:\t$from\t",scalar localtime($from),"\n" if ($debug); |
306 |
dpavlin |
1.5 |
$total += $self->uptime($from); |
307 |
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|
308 |
dpavlin |
1.8 |
print STDERR "total: ",fmt_interval($total)," (first)\n" if ($debug); |
309 |
dpavlin |
1.5 |
|
310 |
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# add all whole days |
311 |
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|
312 |
dpavlin |
1.8 |
my $sec_in_day = $self->{sec_in_interval}; |
313 |
dpavlin |
1.5 |
my $day = 86400; # 24*60*60 |
314 |
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|
315 |
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my $loop_start_time = int($from/$day)*$day + $day; |
316 |
dpavlin |
1.8 |
my $loop_end_time = int($to/$day)*$day; |
317 |
dpavlin |
1.5 |
|
318 |
|
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print STDERR "loop (start - end): $loop_start_time - $loop_end_time\n" if ($debug); |
319 |
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320 |
dpavlin |
1.8 |
for (my $t = $loop_start_time; $t < $loop_end_time; $t += $day) { |
321 |
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print STDERR "t:\t$t\t",scalar localtime($t),"\n" if ($debug); |
322 |
dpavlin |
1.5 |
$total += $sec_in_day if ($self->day_in_interval($t)); |
323 |
dpavlin |
1.8 |
print STDERR "total: ",fmt_interval($total)," (loop)\n" if ($debug); |
324 |
dpavlin |
1.5 |
} |
325 |
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|
326 |
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# add rest of last day |
327 |
dpavlin |
1.8 |
print STDERR "t:\t$to\t",scalar localtime($to),"\n" if ($debug); |
328 |
dpavlin |
1.6 |
|
329 |
dpavlin |
1.8 |
if ($to > $self->_start($to)) { |
330 |
|
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if ($to <= $self->_end($to)) { |
331 |
|
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$total = abs($total - $self->downtime($to)); |
332 |
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} elsif($self->day_in_interval($to) && $loop_start_time < $loop_end_time) { |
333 |
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$total += $sec_in_day; |
334 |
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} |
335 |
dpavlin |
1.9 |
} else { |
336 |
|
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$total = abs($total - $self->downtime($to)); |
337 |
dpavlin |
1.8 |
} |
338 |
|
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print STDERR "total: ",fmt_interval($total)," (final)\n" if ($debug); |
339 |
dpavlin |
1.5 |
|
340 |
|
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return $total; |
341 |
|
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} |
342 |
|
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|
343 |
|
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# |
344 |
|
|
# this function will check if day falls into interval |
345 |
|
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# |
346 |
|
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|
347 |
|
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sub day_in_interval { |
348 |
|
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my $self = shift; |
349 |
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|
350 |
dpavlin |
1.7 |
my $time = shift || croak "need timestamp to check if day is in interval"; |
351 |
dpavlin |
1.5 |
|
352 |
dpavlin |
1.8 |
my @lt = localtime($time); |
353 |
dpavlin |
1.5 |
return $self->_dayOk($lt[6]); |
354 |
|
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} |
355 |
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|
356 |
|
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# |
357 |
|
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# return seconds in defined interval |
358 |
|
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# |
359 |
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|
360 |
dpavlin |
1.1 |
|
361 |
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1; |
362 |
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__END__ |
363 |
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364 |
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=head1 NAME |
365 |
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|
366 |
|
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Time::Available - Perl extension to calculate time availability |
367 |
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368 |
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=head1 SYNOPSIS |
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use Time::Available; |
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# init interval and dayMask |
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my $interval = new( start=>'07:00', stop=>'17:00', |
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dayMask=> Time::Available::DAY_WEEKDAY ); |
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# alternative way to init module using exporting of days |
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use Time::Available qw(:days); |
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my $interval = new( start=>'07:00', stop=>'17:00', |
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dayMask=> DAY_WEEKDAY ); |
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dpavlin |
1.10 |
# calculate current uptime availability from now in seconds |
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dpavlin |
1.1 |
print $interval->uptime(localtime); |
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dpavlin |
1.10 |
# calculate maximum downtime in seconds from current moment |
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print $interval->downtime(localtime); |
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dpavlin |
1.1 |
# calculate availablity in seconds from interval of uptime |
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print $interval->interval($utime1,$utime2); |
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dpavlin |
1.2 |
# pretty print interval data (this will produce output '1d 11:11:11') |
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use Time::Available qw(:fmt_interval); |
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print fmt_interval(126671); |
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dpavlin |
1.1 |
=head1 DESCRIPTION |
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Time::Available is used to calculate availability of some resource if start |
397 |
dpavlin |
1.10 |
and end time of availability is supplied. Availability is calculated |
398 |
dpavlin |
1.1 |
relative to some interval which is defined when new instance of module is |
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created. |
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Start and end dates must be specified in 24-hour format. You can specify |
402 |
dpavlin |
1.10 |
just hour, hour:minute or hour:minute:seconds format. Start and end time is |
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specified in your B<local time zone>. Timestamp, are specified in unix |
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utime, and module will take care of recalculating (using C<localtime> and |
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C<timelocal> when needed). There is one small canvat here: module is assuing |
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that time you are specifing is in same time zone in which your module is |
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running (that is from local system). |
408 |
dpavlin |
1.1 |
|
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The B<dayMask> parameter is constructed by OR'ing together one or more of |
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the following dayMask constants: |
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=over 4 |
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=item * |
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dpavlin |
1.4 |
Time::Available::DAY_MONDAY |
416 |
dpavlin |
1.1 |
|
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=item * |
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dpavlin |
1.4 |
Time::Available::DAY_TUESDAY |
419 |
dpavlin |
1.1 |
|
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=item * |
421 |
dpavlin |
1.4 |
Time::Available::DAY_WEDNESDAY |
422 |
dpavlin |
1.1 |
|
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=item * |
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dpavlin |
1.4 |
Time::Available::DAY_THURSDAY |
425 |
dpavlin |
1.1 |
|
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=item * |
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dpavlin |
1.4 |
Time::Available::DAY_FRIDAY |
428 |
dpavlin |
1.1 |
|
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=item * |
430 |
dpavlin |
1.4 |
Time::Available::DAY_SATURDAY |
431 |
dpavlin |
1.1 |
|
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=item * |
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dpavlin |
1.4 |
Time::Available::DAY_SUNDAY |
434 |
dpavlin |
1.1 |
|
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=item * |
436 |
dpavlin |
1.4 |
Time::Available::DAY_WEEKDAY |
437 |
dpavlin |
1.1 |
|
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=item * |
439 |
dpavlin |
1.4 |
Time::Available::DAY_WEEKEND |
440 |
dpavlin |
1.1 |
|
441 |
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=item * |
442 |
dpavlin |
1.4 |
Time::Available::DAY_EVERYDAY |
443 |
dpavlin |
1.1 |
|
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=back |
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446 |
dpavlin |
1.10 |
They should be self-explainatory. |
447 |
dpavlin |
1.1 |
|
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=head2 EXPORT |
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450 |
dpavlin |
1.2 |
None by default. |
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If you specify B<:days>, Time::Available will export all |
453 |
dpavlin |
1.1 |
DAY_* constraints to your enviroment (causing possible pollution of name |
454 |
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space). You have been warned. |
455 |
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|
456 |
dpavlin |
1.2 |
With B<:fmt_interval> it will include function B<fmt_interval> which will |
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pretty-format interval into [days]d hh:mm:ss. |
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459 |
dpavlin |
1.1 |
|
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=head1 HISTORY |
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=over 8 |
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=item 0.01 |
465 |
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Original version; based somewhat on Time::Avail code |
467 |
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|
468 |
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=back |
469 |
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=head1 BUGS |
471 |
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|
472 |
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=over 8 |
473 |
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|
474 |
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=item * |
475 |
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Allow arbitary (array?) of holidays to be included. |
476 |
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477 |
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=back |
478 |
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=head1 SEE ALSO |
480 |
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|
481 |
dpavlin |
1.10 |
L<Time::Avail> is CPAN module that started it all. However, it lacked |
482 |
dpavlin |
1.1 |
calculating of availability of some interval and precision in seconds, so |
483 |
dpavlin |
1.10 |
this module was born. It also had some bugs in dayMask which where reported |
484 |
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to author, but his e-mail address bounced. |
485 |
dpavlin |
1.1 |
|
486 |
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More information about this module might be found on |
487 |
dpavlin |
1.3 |
https://www.rot13.org/~dpavlin/projects.html#cpan |
488 |
dpavlin |
1.1 |
|
489 |
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=head1 AUTHOR |
490 |
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491 |
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Dobrica Pavlinusic, E<lt>dpavlin@rot13.orgE<gt> |
492 |
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493 |
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=head1 COPYRIGHT AND LICENSE |
494 |
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495 |
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Copyright (C) 2003 by Dobrica Pavlinusic |
496 |
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497 |
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This library is free software; you can redistribute it and/or modify |
498 |
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it under the same terms as Perl itself. |
499 |
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500 |
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=cut |
501 |
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502 |
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503 |
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1; |