r6rs-async-io-process

Wrapper of child-process for r6rs-async-io

Commands

• process/exec (command options) -> ((message code signal) stdout stderr)
• process/spawn ((command args) options) -> (processId)
  Note: this method must be called with io-on to work correctly, since it uses cancel event to clean-up the process.
• process/writeStdin (processId data) -> ()
• process/onStdout (processId) -> (data)
• process/onStderr (processId) -> (data)
• process/onClose (processId) -> (code)
• process/onError (processId) -> (error)
• process/kill (processId signal) -> ()