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fix(transport): improve BLE / TCP / USB reconnect and handshake resilience (#5196)

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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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James Rich 2026-04-20 12:34:16 -05:00 • committed by GitHub
parent a90cb2d89e
commit f21d8af9ae
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14 changed files with 124 additions and 46 deletions
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9
core/ble/src/commonMain/kotlin/org/meshtastic/core/ble/BleExceptionClassifier.kt
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@ -26,7 +26,9 @@ import com.juul.kable.UnmetRequirementException
/**
* Classification of a BLE-layer exception for the transport layer to act on.
*
* @property isPermanent `true` if the condition won't resolve without user intervention (e.g. Bluetooth disabled).
* @property isPermanent `true` if the condition cannot resolve without explicit user re-selection of the device.
* Currently always `false` — all known BLE exceptions can resolve without user intervention (BT toggling, permission
* grants, transient GATT errors). Reserved for future use.
* @property gattStatus the platform GATT status code when available (Android-specific).
* @property message a human-readable description of the failure.
*/
@ -50,6 +52,9 @@ fun Throwable.classifyBleException(): BleExceptionInfo? = when (this) {
is GattRequestRejectedException ->
BleExceptionInfo(isPermanent = false, message = "GATT request rejected (busy)")
is UnmetRequirementException ->
BleExceptionInfo(isPermanent = true, message = message ?: "Bluetooth LE unavailable")
// Bluetooth disabled or runtime permission missing. Both can resolve without re-selecting the
// device (user re-enables BT, or grants permission). Surface as transient so the transport keeps
// retrying; UI can show a hint based on the message.
BleExceptionInfo(isPermanent = false, message = message ?: "Bluetooth LE unavailable")
else -> null
}