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---
- name: process
  fields:

    # minor typo fix in description for this field. "pts/0 -> "pts/0"
    - name: tty.char_device.major
      description: >
        The major number identifies the driver associated with the device. The character device's major and minor numbers can be algorithmically combined to produce the more familiar terminal identifiers such as "ttyS0" and "pts/0". For more details, please refer to the Linux kernel documentation.

    - name: tty.rows
      level: extended
      type: long
      beta: This field is beta and subject to change.
      short: The number of character rows in the terminal. e.g terminal height
      description: >
        The number of character rows in the terminal. e.g terminal height

        Terminal sizes can change, so this value reflects the maximum value for a given IO event. i.e. where event.action = 'text_output'
      example: 24

    - name: tty.columns
      level: extended
      type: long
      beta: This field is beta and subject to change.
      short: The number of character columns per line. e.g terminal width
      description: >
        The number of character columns per line. e.g terminal width

        Terminal sizes can change, so this value reflects the maximum value for a given IO event. i.e. where event.action = 'text_output'
      example: 80

    # new 'io' properties for tracking tty output
    - name: io
      level: extended
      type: object
      short: A chunk of input or output (IO) from a single process.
      description: >
        A chunk of input or output (IO) from a single process.

        This field only appears on the top level process object, which is the process that wrote the output or read the input.

    - name: io.type
      level: extended
      type: keyword
      short: The type of object on which the IO action (read or write) was taken.
      description: >
        The type of object on which the IO action (read or write) was taken.

        Currently only 'tty' is supported. Other types may be added in the future for 'file' and 'socket' support.

    - name: io.text
      level: extended
      type: wildcard
      short: A chunk of output or input sanitized to UTF-8.
      description: >
        A chunk of output or input sanitized to UTF-8.

        Best efforts are made to ensure complete lines are captured in these events. Assumptions should NOT be made that multiple lines will appear in the same event. TTY output may contain terminal control codes such as for cursor movement, so some string queries may not match due to terminal codes inserted between characters of a word.

    - name: io.total_bytes_captured
      level: extended
      type: number
      description: >
        The total number of bytes captured in this event.

    - name: io.total_bytes_skipped
      level: extended
      type: number
      description: >
        The total number of bytes of output that were not captured due to implementation restrictions such as buffer size limits. Implementors should strive to ensure this value is always zero

    - name: io.max_bytes_per_process_exceeded
      level: extended
      type: boolean
      description: >
        If true, the process producing the output has exceeded the max_kilobytes_per_process configuration setting.

    - name: io.bytes_skipped
      level: extended
      type: object
      description: >
        An array of byte offsets and lengths denoting where IO data has been skipped.

      normalize: array

    - name: io.bytes_skipped.offset
      level: extended
      type: number
      description: >
        The byte offset into this event's io.text (or io.bytes in the future) where length bytes were skipped.

    - name: io.bytes_skipped.length
      level: extended
      type: number
      description: >
        The length of bytes skipped.

    # future addition (NOT TO BE INCLUDED IN THIS RFC)
    - name: io.bytes
      level: extended
      type: binary
      description: >
        A base64 encoded string of binary data read or written by a process. It's preferable to use process.io.text instead, where possible, to improve searchability.