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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.
program player
use config
use instructions
use player_endpoints
use json_module
use talking
#ifdef WINDOWS
use wsa_network, only: windows_network_startup => startup
#endif
implicit none
character(len=1024)::url
type(json_file)::j_checkin, j_instructions
logical::work_to_do, checkin_json_available, instr_json_available
integer::i_task
integer::job_id
character(128)::instruction_name
#ifdef WINDOWS
call windows_network_startup()
#endif
call parse_options()
! Change directory to the working directory now
call chdir(working_directory)
do while(.true.)
! Check in for work
call get_check_in_url(url)
checkin_json_available = request_json(url, j_checkin)
if(checkin_json_available) then
work_to_do = work_available(j_checkin)
else
Print *, "Checkin failed: "//trim(url)
work_to_do = .false.
end if
if(work_to_do) then
Print *, "Work Available"
job_id = get_job_id_from_checkin(j_checkin)
call get_instruction_name_from_checkin(j_checkin, instruction_name)
call get_instruction_url(instruction_name, url)
instr_json_available = request_json(url, j_instructions)
if(instr_json_available) then
! Task loop
call perform_tasks(j_instructions, job_id)
call destroy_instructions(j_instructions)
end if
else
#ifdef GNU
call sleep(20)
#endif
end if
! Sleep a bit regardless
#ifdef GNU
call sleep(10)
#endif
! Destroy any existing json
if(checkin_json_available) then
call j_checkin%destroy()
end if
end do
contains
subroutine usage()
implicit none
character(len=256)::pname
call get_command_argument(0, pname)
Print *, "Usage: "//trim(pname)//" <options> <captain>"
Print *, " "
Print *, "captain is the build control server"
Print *, " "
Print *, "Options:"
Print *, " -h Display this help"
Print *, " -w <dir> Use dir as the working directory"
Print *, " -l <log> Use log as the logfile"
Print *, " -i <identity> This players identity"
end subroutine usage
subroutine parse_options
use config
implicit none
character(len=1024)::option
integer::slen
integer::i
identity = " "
token = "None"
i = 1
do while(i <= command_argument_count())
call get_command_argument(i, option)
if(option(1:1) /= "-") then
captain = option
else if(trim(option) == "-h") then
call usage()
stop
else if(trim(option) == "-w") then
i = i + 1
call get_command_argument(i, length=slen)
allocate(character(len=slen) :: working_directory)
call get_command_argument(i, working_directory)
else if(trim(option) == "-l") then
i = i + 1
call get_command_argument(i, length=slen)
allocate(character(len=slen) :: logfile)
call get_command_argument(i, logfile)
else if(trim(option) == "-i") then
i = i + 1
call get_command_argument(i, identity)
end if
i = i + 1
end do
! Assign working directory from command if not specified
if(.not. associated(working_directory)) then
call get_command_argument(0, length=slen)
allocate(character(len=slen) :: working_directory)
call get_command_argument(i, working_directory)
i = index(working_directory, "/", back=.true.)
if(i == 0) then
i = index(working_directory, "/", back=.true.)
endif
if(i == 0) then
Print *, "Could not determine working_directory"
stop
else
working_directory(i:slen) = ' '
end if
end if
! Assign a temporary directory and file for a log file
! NOTE: will fail on Windows
if(.not. associated(logfile)) then
allocate(character(len=256) :: logfile)
logfile = "/tmp/levitating-player.log"
end if
! Assign this computer an identity if not explicitly specified
if(len_trim(identity) == 0) then
#ifdef GNU
call hostnm(identity)
#else
Print *, "Could not determine host identity"
stop
#endif
end if
end subroutine parse_options
function request_json(url, j)
use json_module
use gemini_protocol
use instructions, only: parse_instructions
use talking, only: request_to_temporary_file
use utilities, only: delete_file
implicit none
logical::request_json
character(*), intent(in)::url
type(json_file), intent(out)::j
character(:), pointer::filename
integer::status_code
status_code = request_to_temporary_file(url, filename)
if(status_code == STATUS_SUCCESS) then
j = parse_instructions(filename)
request_json = .true.
else
request_json = .false.
end if
if(associated(filename)) then
call delete_file(filename)
deallocate(filename)
end if
end function request_json
end program player
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