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dbus: Return false if the screensaver inhibitor interface is unavailable

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Returning true with an unavailable interface in no-op cases can prevent fallback to other inhibition methods. If the inhibitor interface was previously tried and marked as unavailable, just return false.
This commit is contained in:
Frank Praznik
2026-04-20 12:41:48 -04:00
parent 700280a150
commit 125ed508c2
1 changed files with 9 additions and 0 deletions
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9
src/core/linux/SDL_dbus.c
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@@ -612,8 +612,14 @@ done:
bool SDL_DBus_ScreensaverInhibit(bool inhibit)
{
static bool interface_unavailable = false;
const char *default_inhibit_reason = "Playing a game";
// If the interface was previously queried and is unavailable, return false.
if (interface_unavailable) {
return false;
}
if ((inhibit && (screensaver_cookie != 0 || inhibit_handle)) || (!inhibit && (screensaver_cookie == 0 && !inhibit_handle))) {
return true;
}
@@ -664,6 +670,8 @@ bool SDL_DBus_ScreensaverInhibit(bool inhibit)
if (SDL_DBus_CallWithBasicReply(dbus.session_conn, &reply, msg, DBUS_TYPE_OBJECT_PATH, &reply_path)) {
inhibit_handle = SDL_strdup(reply_path);
result = true;
} else {
interface_unavailable = true;
}
SDL_DBus_FreeReply(&reply);
dbus.message_unref(msg);
@@ -690,6 +698,7 @@ bool SDL_DBus_ScreensaverInhibit(bool inhibit)
if (!SDL_DBus_CallMethod(NULL, bus_name, path, interface, "Inhibit",
DBUS_TYPE_STRING, &app, DBUS_TYPE_STRING, &reason, DBUS_TYPE_INVALID,
DBUS_TYPE_UINT32, &screensaver_cookie, DBUS_TYPE_INVALID)) {
interface_unavailable = true;
return false;
}
return (screensaver_cookie != 0);