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Updated documentation for SDL_HINT_SHUTDOWN_DBUS_ON_QUIT

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(cherry picked from commit 3deefa6b438922d5d55cb881482f8550f51978b7)
This commit is contained in:
Sam Lantinga 2024-01-07 14:20:16 -08:00
parent 8c4e4d57b3
commit 5e12e4b813
2 changed files with 13 additions and 12 deletions
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18
include/SDL_hints.h
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@ -2667,18 +2667,18 @@ extern "C" {
#define SDL_HINT_TRACKPAD_IS_TOUCH_ONLY "SDL_TRACKPAD_IS_TOUCH_ONLY" #define SDL_HINT_TRACKPAD_IS_TOUCH_ONLY "SDL_TRACKPAD_IS_TOUCH_ONLY"
/** /**
* Let SDL handle dbus_shutdown(). * Cause SDL to call dbus_shutdown() on quit.
* *
* Only enable this option if no other dependency uses D-Bus. * This is useful as a debug tool to validate memory leaks, but shouldn't ever
* be set in production applications, as other libraries used by the application
* might use dbus under the hood and this cause cause crashes if they continue
* after SDL_Quit().
* *
* This option tells SDL that it can safely call dbus_shutdown() when * This variable can be set to the following values:
* SDL_Quit() is called. You must ensure that no other library still uses * "0" - SDL will not call dbus_shutdown() on quit (default)
* D-Bus when SDL_Quit() is called, otherwise resources will be freed while * "1" - SDL will call dbus_shutdown() on quit
* they are still in use, which results in undefined behavior and likely a
* crash.
* *
* Use this option to prevent memory leaks if your application doesn't use * This hint is available since SDL 2.30.0.
* D-Bus other than through SDL.
*/ */
#define SDL_HINT_SHUTDOWN_DBUS_ON_QUIT "SDL_SHUTDOWN_DBUS_ON_QUIT" #define SDL_HINT_SHUTDOWN_DBUS_ON_QUIT "SDL_SHUTDOWN_DBUS_ON_QUIT"

7
src/core/linux/SDL_dbus.c
View file

@ -187,9 +187,10 @@ void SDL_DBus_Quit(void)
dbus.connection_unref(dbus.session_conn); dbus.connection_unref(dbus.session_conn);
} }
SDL_bool q = SDL_GetHintBoolean(SDL_HINT_SHUTDOWN_DBUS_ON_QUIT, SDL_FALSE); if (SDL_GetHintBoolean(SDL_HINT_SHUTDOWN_DBUS_ON_QUIT, SDL_FALSE)) {
if (q == SDL_TRUE && dbus.shutdown) { if (dbus.shutdown) {
dbus.shutdown(); dbus.shutdown();
}
} }
SDL_zero(dbus); SDL_zero(dbus);