mirror of
https://github.com/swaywm/sway.git
synced 2024-11-25 17:31:28 +00:00
25 lines
804 B
Markdown
25 lines
804 B
Markdown
|
## Logging
|
||
|
|
|
||
|
|
Use `sway_log(importance, fmt, ...)` to log. The following importances are
|
||
|
|
available:
|
||
|
|
|
||
|
|
* `L_DEBUG`: Debug messages, only shows with `sway -d`
|
||
|
|
* `L_INFO`: Informational messages
|
||
|
|
* `L_ERROR`: Error messages
|
||
|
|
|
||
|
|
`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.
|