BEGIN \
{ # Initialize table of month lengths
_tm_months[0,1] = _tm_months[1,1] = 31
_tm_months[0,2] = 28; _tm_months[1,2] = 29
_tm_months[0,3] = _tm_months[1,3] = 31
_tm_months[0,4] = _tm_months[1,4] = 30
_tm_months[0,5] = _tm_months[1,5] = 31
_tm_months[0,6] = _tm_months[1,6] = 30
_tm_months[0,7] = _tm_months[1,7] = 31
_tm_months[0,8] = _tm_months[1,8] = 31
_tm_months[0,9] = _tm_months[1,9] = 30
_tm_months[0,10] = _tm_months[1,10] = 31
_tm_months[0,11] = _tm_months[1,11] = 30
_tm_months[0,12] = _tm_months[1,12] = 31
}
# decide if a year is a leap year
function _tm_isleap(year, ret)
{ ret = (year % 4 == 0 && year % 100 != 0) ||
(year % 400 == 0)
return ret
}
# convert a date into seconds
function _tm_addup(a, total, yearsecs, daysecs,
hoursecs, i, j)
{ hoursecs = 60 * 60
daysecs = 24 * hoursecs
yearsecs = 365 * daysecs
total = (a[1] - 1970) * yearsecs
# extra day for leap years
for (i = 1970; i < a[1]; i++)
if (_tm_isleap(i))
total += daysecs
j = _tm_isleap(a[1])
for (i = 1; i < a[2]; i++)
total += _tm_months[j, i] * daysecs
total += (a[3] - 1) * daysecs
total += a[4] * hoursecs
total += a[5] * 60
total += a[6]
return total
}
# Function mktime convert a date into seconds
function mktime(str, res1, res2, a, b, i, j, t, diff)
{ i = split(str, a, " ") # don't rely on FS
if (i != 6)
return -1
# force numeric
for (j in a)
a[j] += 0
# validate
if (a[1] < 1970 ||
a[2] < 1 || a[2] > 12 ||
a[3] < 1 || a[3] > 31 ||
a[4] < 0 || a[4] > 23 ||
a[5] < 0 || a[5] > 59 ||
a[6] < 0 || a[6] > 61 )
return -1
res1 = _tm_addup(a)
return res1
}
{
last_t=substr($2 " " $3,1,19)
getline < "check_time.txt"
curr_t=$0
# Convert last_time to seconds (epoch)
b=last_t
gsub(/[-:]/," ",b)
last_s=mktime(b)
# Convert curr_time to seconds (epoch)
b=curr_t
gsub(/[-:]/," ",b)
curr_s=mktime(b)
print ((curr_s-last_s)<=3600) ? 0 : 1
}
