Top Level Namespace

Defined Under Namespace

Modules: IOU

Constant Summary collapse

KERNEL_INFO_RE = 
/Linux (\d)\.(\d+)(?:\.)?((?:\d+\.?)*)(?:\-)?([\w\-]+)?/

Instance Method Summary collapse

Instance Method Details

#define_bool(name, value) ⇒ Object 



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# File 'ext/iou/extconf.rb', line 57

def define_bool(name, value)
  $defs << "-D#{name}=#{value ? 1 : 0 }"
end

#get_config ⇒ Object 



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# File 'ext/iou/extconf.rb', line 10

def get_config
  config = { linux: !!(RUBY_PLATFORM =~ /linux/) }
  raise "IOU only works on Linux!" if !config[:linux]

  kernel_info = `uname -sr`
  m = kernel_info.match(KERNEL_INFO_RE)
  raise "Could not parse Linux kernel information (#{kernel_info.inspect})" if !m

  version, major_revision, distribution = m[1].to_i, m[2].to_i, m[4]

  combined_version = version.to_i * 100 + major_revision.to_i
  raise "IOU requires kernel version 6.4 or newer!" if combined_version < 604

  config[:kernel_version]     = combined_version
  config[:pidfd_open]         = combined_version > 503
  config[:multishot_accept]   = combined_version >= 519
  config[:multishot_recv]     = combined_version >= 600
  config[:multishot_recvmsg]  = combined_version >= 600
  config[:multishot_timeout]  = combined_version >= 604
  config[:submit_all_flag]    = combined_version >= 518
  config[:coop_taskrun_flag]  = combined_version >= 519
  config[:single_issuer_flag] = combined_version >= 600

  config
end