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.cpp

@@ -4,6 +4,7 @@
 #include <optional>
 #include <opts.h>
 #include <asynchronousContinuation.h>
+#include <callback.h>
 #include <user/senseApiDesc.h>
 #include "protocol.h"
 #include "core.h"
@@ -84,7 +85,7 @@ public:
 	GetOrCreateDeviceReq(
 		DeviceManager& mgr,
 		std::shared_ptr<Device> device,
-		livoxProto1_getOrCreateDeviceReqCbFn cb)
+		smo::Callback<livoxProto1_getOrCreateDeviceReqCbFn> cb)
 	:	smo::NonPostedAsynchronousContinuation<
 			livoxProto1_getOrCreateDeviceReqCbFn>(std::move(cb)),
 	deviceManager(mgr), pendingDevice(device)
@@ -130,7 +131,7 @@ void DeviceManager::getOrCreateDeviceReq(
 	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)
 {
 	// Validate smoIp format using Boost.Asio IPv4 validation
 	if (!smoIp.empty() && !comms::isValidIPv4(smoIp))
@@ -154,7 +155,7 @@ void DeviceManager::getOrCreateDeviceReq(
 	if (existingDevice)
 	{
 		// Device already exists and is connected, return it
-		callback(true, existingDevice.value());
+		callback.callbackFn(true, existingDevice.value());
 		return;
 	}
 
@@ -171,9 +172,9 @@ void DeviceManager::getOrCreateDeviceReq(
 
 	// Start the connection process - only add to collection on success
 	request->pendingDevice->connectReq(
-		std::bind(
+		{request, std::bind(
 			&DeviceManager::GetOrCreateDeviceReq::getOrCreateDeviceReq1,
-			request.get(), request, std::placeholders::_1));
+			request.get(), request, std::placeholders::_1)});
 }
 
 class DeviceManager::DestroyDeviceReq
@@ -188,7 +189,7 @@ public:
 	DestroyDeviceReq(
 		DeviceManager& mgr,
 		std::shared_ptr<Device> device,
-		livoxProto1_destroyDeviceReqCbFn cb)
+		smo::Callback<livoxProto1_destroyDeviceReqCbFn> cb)
 	:	smo::NonPostedAsynchronousContinuation<
 			livoxProto1_destroyDeviceReqCbFn>(std::move(cb)),
 	deviceManager(mgr), pendingDevice(device)
@@ -218,7 +219,7 @@ public:
 
 void DeviceManager::destroyDeviceReq(
 	std::shared_ptr<Device> dev,
-	livoxProto1_destroyDeviceReqCbFn callback
+	smo::Callback<livoxProto1_destroyDeviceReqCbFn> callback
 )
 {
 	/**		EXPLANATION:
@@ -230,7 +231,7 @@ void DeviceManager::destroyDeviceReq(
 
 	if (!device)
 	{
-		callback(false);
+		callback.callbackFn(false);
 		return;
 	}
 
@@ -238,9 +239,9 @@ void DeviceManager::destroyDeviceReq(
 		*this, device, std::move(callback));
 
 	device->disconnectReq(
-		std::bind(
+		{request, std::bind(
 			&DeviceManager::DestroyDeviceReq::destroyDeviceReq1,
-			request.get(), request, std::placeholders::_1));
+			request.get(), request, std::placeholders::_1)});
 }
 
 void main(const std::shared_ptr<smo::ComponentThread> &componentThread,