commit 38a3d707a46611cba7f647c335fd976fc2ea3c4b
author Sonny Sasaka <sonnysasaka@google.com> Mon Dec 05 16:28:16 2022 -0800
committer Sonny Sasaka <sonnysasaka@google.com> Mon Dec 05 16:28:24 2022 -0800
tree 9c5b7d7fb7800faf88eca0bb146e89940610d723
parent d34130677eaeab00d60d477c20e8bf93eac64c55

Floss: Define on_scan_result_lost API

This defines on_scan_result_lost callback, which is equivalent to
BlueZ's DeviceLost. This callback is triggered when an advertisement is
no longer fulfilling the criteria of MSFT filters.

Bug: 261482382
Tag: #floss
Test: Manual - Build Floss on Linux

Change-Id: Ie3788e938bf96db3f5b68a64cb5206e4abf8ca26

system/gd/rust/linux/client/src/callbacks.rs

diff --git a/system/gd/rust/linux/client/src/callbacks.rs b/system/gd/rust/linux/client/src/callbacks.rs
index 157b89c..83c1222 100644
--- a/system/gd/rust/linux/client/src/callbacks.rs
+++ b/system/gd/rust/linux/client/src/callbacks.rs
@@ -327,6 +327,12 @@
         }
     }
 
+    fn on_scan_result_lost(&self, scan_result: ScanResult) {
+        if self.context.lock().unwrap().active_scanner_ids.len() > 0 {
+            print_info!("Scan result lost: {:#?}", scan_result);
+        }
+    }
+
     fn on_suspend_mode_change(&self, _suspend_mode: SuspendMode) {
         // No-op, not interesting for btclient.
     }

system/gd/rust/linux/client/src/dbus_iface.rs

diff --git a/system/gd/rust/linux/client/src/dbus_iface.rs b/system/gd/rust/linux/client/src/dbus_iface.rs
index 687be6c..57cb639 100644
--- a/system/gd/rust/linux/client/src/dbus_iface.rs
+++ b/system/gd/rust/linux/client/src/dbus_iface.rs
@@ -336,6 +336,11 @@
         dbus_generated!()
     }
 
+    #[dbus_method("OnScanResultLost")]
+    fn on_scan_result_lost(&self, scan_result: ScanResult) {
+        dbus_generated!()
+    }
+
     #[dbus_method("OnSuspendModeChange")]
     fn on_suspend_mode_change(&self, suspend_mode: SuspendMode) {
         dbus_generated!()

system/gd/rust/linux/service/src/iface_bluetooth_gatt.rs

diff --git a/system/gd/rust/linux/service/src/iface_bluetooth_gatt.rs b/system/gd/rust/linux/service/src/iface_bluetooth_gatt.rs
index 3b8196b..9a29aca 100644
--- a/system/gd/rust/linux/service/src/iface_bluetooth_gatt.rs
+++ b/system/gd/rust/linux/service/src/iface_bluetooth_gatt.rs
@@ -169,6 +169,11 @@
         dbus_generated!()
     }
 
+    #[dbus_method("OnScanResultLost")]
+    fn on_scan_result_lost(&self, scan_result: ScanResult) {
+        dbus_generated!()
+    }
+
     #[dbus_method("OnSuspendModeChange")]
     fn on_suspend_mode_change(&self, suspend_mode: SuspendMode) {
         dbus_generated!()

system/gd/rust/linux/stack/src/bluetooth_gatt.rs

diff --git a/system/gd/rust/linux/stack/src/bluetooth_gatt.rs b/system/gd/rust/linux/stack/src/bluetooth_gatt.rs
index 66911ec..9c7dd0f 100644
--- a/system/gd/rust/linux/stack/src/bluetooth_gatt.rs
+++ b/system/gd/rust/linux/stack/src/bluetooth_gatt.rs
@@ -591,6 +591,10 @@
     /// requested to be filtered in.
     fn on_scan_result(&self, scan_result: ScanResult);
 
+    /// When an LE advertisement matching aggregate filters is no longer detected. The criteria of
+    /// how a device is considered lost is specified by ScanFilter.
+    fn on_scan_result_lost(&self, scan_result: ScanResult);
+
     /// When LE Scan module changes suspend mode due to system suspend/resume.
     fn on_suspend_mode_change(&self, suspend_mode: SuspendMode);
 }