# battd

A simple battery daemon written for use with a daemontools-style supervisor.

`run` polls the status of a `check` function with a regular interval. On the
transition from a successful `check` exit status to an unsuccessful `check` exit
status the `failed` function is called.

## Installation

``` text
# ./install /etc/sv/battd
# ln -s /etc/sv/battd /var/service
```

Adjust the above as needed.

## Usage

Configure `conf` appropriately. This should contain three functions:

`interval`
:   Called to determine the polling interval (see below).

`check`
:   Called to determine the battery status.

`failed`
:   Called when the battery status has transitioned from a successful to a
    failing return.

Optionally two variables can be set:

`long_interval`
:   The polling interval when `interval` returns success (default: 300).

`short_interval`
:   The polling interval when `interval` returns failure (default: 30).