2017-04-29 16:54:08 +02:00
|
|
|
## Logging
|
|
|
|
|
|
|
|
|
|
Use `sway_log(importance, fmt, ...)` to log. The following importances are
|
|
|
|
|
available:
|
|
|
|
|
|
2018-07-09 23:54:30 +02:00
|
|
|
* `WLR_DEBUG`: Debug messages, only shows with `sway -d`
|
|
|
|
|
* `WLR_INFO`: Informational messages
|
|
|
|
|
* `WLR_ERROR`: Error messages
|
2017-04-29 16:54:08 +02:00
|
|
|
|
|
|
|
|
`sway_log` is a macro that calls `_sway_log` with the current filename and line
|
|
|
|
|
number, which are written into the log with your message.
|
|
|
|
|
|
|
|
|
|
## Assertions
|
|
|
|
|
|
|
|
|
|
In the compositor, assertions *must not* be fatal. All error cases must be
|
|
|
|
|
handled as gracefully as possible - crashing the compositor will make the user
|
|
|
|
|
lose all of their work.
|
|
|
|
|
|
|
|
|
|
Use `sway_assert(condition, fmt, ...)` to perform an assertion. This returns
|
|
|
|
|
`condition`, which you must handle if false. An error will be logged if the
|
|
|
|
|
assertion fails.
|
|
|
|
|
|
|
|
|
|
Outside of the compositor (swaymsg, swaybar, etc), using `assert.h` is
|
|
|
|
|
permitted.
|
