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! Copyright (c) 2021 Approximatrix, LLC <support@approximatrix.com>
!
! Permission is hereby granted, free of charge, to any person obtaining a copy
! of this software and associated documentation files (the "Software"), to deal
! in the Software without restriction, including without limitation the rights
! to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
! copies of the Software, and to permit persons to whom the Software is
! furnished to do so, subject to the following conditions:
!
! The above copyright notice and this permission notice shall be included in
! all copies or substantial portions of the Software.
!
! The Software shall be used for Good, not Evil.
!
! THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
! IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
! FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
! AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
! LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
! OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
! SOFTWARE.
module logging
implicit none
integer, parameter::LOG_DEBUG = 8
integer, parameter::LOG_INFO = 6
integer, parameter::LOG_NORMAL = 3
integer, parameter::logunit = 1197
integer::level_threshold
character(len=:), pointer::logfile
contains
subroutine initialize(filename, logging_threshold)
implicit none
character(*), intent(in)::filename
integer, intent(in)::logging_threshold
allocate(character(len=len_trim(filename)) :: logfile)
logfile = filename
level_threshold = logging_threshold
end subroutine initialize
subroutine shutdown()
implicit none
if(associated(logfile)) then
deallocate(logfile)
end if
logfile => null()
end subroutine shutdown
subroutine write_log(string, level)
implicit none
character(*), intent(in)::string
integer, intent(in), optional::level
character(12)::pid_text
integer::ierr
if(present(level)) then
if(level > level_threshold) then
return
end if
end if
open(unit=logunit, file=logfile, action="write", &
status="unknown", position="append", iostat=ierr)
! Silently move on if we failed to open the file
if(ierr == 0) then
write(pid_text, '(I8)') getpid()
! GNU Extension... :(
write(logunit, *) fdate()//" ("//trim(adjustl(pid_text))//") :: "//string
close(logunit)
end if
end subroutine write_log
end module logging
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