Async: add sh_ptr<ContinuationChainLink> to Callback<>

This change enables us to finally implement the tracing of
continuations backward from the point of acquisition for deadlock
debugging.

commonLibs/livoxProto1/core.h

@@ -10,6 +10,7 @@
 #include "device.h"
 #include "broadcastListener.h"
 #include "livoxProto1.h"
+#include <callback.h>
 
 namespace livoxProto1 {
 
@@ -27,11 +28,11 @@ public:
 		int handshakeTimeoutMs, int retryDelayMs,
 		const std::string& smoIp, uint8_t smoSubnetNbits,
 		uint16_t dataPort, uint16_t cmdPort, uint16_t imuPort,
-		livoxProto1_getOrCreateDeviceReqCbFn callback);
+		smo::Callback<livoxProto1_getOrCreateDeviceReqCbFn> callback);
 
 	void destroyDeviceReq(
 		std::shared_ptr<Device> device,
-		livoxProto1_destroyDeviceReqCbFn callback);
+		smo::Callback<livoxProto1_destroyDeviceReqCbFn> callback);
 
 	std::optional<std::shared_ptr<Device>> getDevice(
 		const std::string &deviceIdentifier);