update bullet so it actually works

Moved the addSourceDirectory for physics/Bullet into the Engine/Source/CMakeLists.txt file that way it can actually appear where we expect it to in the solution explorer.

Engine/lib/bullet/test/clsocket/RecvAsync.cpp

@@ -0,0 +1,100 @@
+#include <pthread.h>
+#include "PassiveSocket.h"
+
+#ifdef WIN32
+#include <windows.h>
+
+// usually defined with #include <unistd.h>
+static void sleep(unsigned int seconds)
+{
+	Sleep(seconds * 1000);
+}
+#endif
+
+#define MAX_PACKET 4096
+#define TEST_PACKET "Test Packet"
+
+struct thread_data
+{
+	const char *pszServerAddr;
+	short int nPort;
+	int nNumBytesToReceive;
+	int nTotalPayloadSize;
+};
+
+void *CreateTCPEchoServer(void *param)
+{
+	CPassiveSocket socket;
+	CActiveSocket *pClient = NULL;
+	struct thread_data *pData = (struct thread_data *)param;
+	int nBytesReceived = 0;
+
+	socket.Initialize();
+	socket.Listen(pData->pszServerAddr, pData->nPort);
+
+	if ((pClient = socket.Accept()) != NULL)
+	{
+		while (nBytesReceived != pData->nTotalPayloadSize)
+		{
+			if (nBytesReceived += pClient->Receive(pData->nNumBytesToReceive))
+			{
+				pClient->Send((const uint8 *)pClient->GetData(), pClient->GetBytesReceived());
+			}
+		}
+
+		sleep(100);
+
+		delete pClient;
+	}
+
+	socket.Close();
+
+	return NULL;
+}
+
+int main(int argc, char **argv)
+{
+	pthread_t threadId;
+	struct thread_data thData;
+	CActiveSocket client;
+	char result[1024];
+
+	thData.pszServerAddr = "127.0.0.1";
+	thData.nPort = 6789;
+	thData.nNumBytesToReceive = 1;
+	thData.nTotalPayloadSize = (int)strlen(TEST_PACKET);
+
+	pthread_create(&threadId, 0, CreateTCPEchoServer, &thData);
+	sleep(1);  // allow a second for the thread to create and listen
+
+	client.Initialize();
+	client.SetNonblocking();
+
+	if (client.Open("127.0.0.1", 6789))
+	{
+		if (client.Send((uint8 *)TEST_PACKET, strlen(TEST_PACKET)))
+		{
+			int numBytes = -1;
+			int bytesReceived = 0;
+
+			client.Select();
+
+			while (bytesReceived != strlen(TEST_PACKET))
+			{
+				numBytes = client.Receive(MAX_PACKET);
+
+				if (numBytes > 0)
+				{
+					bytesReceived += numBytes;
+					memset(result, 0, 1024);
+					memcpy(result, client.GetData(), numBytes);
+					printf("received %d bytes: '%s'\n", numBytes, result);
+				}
+				else
+				{
+					printf("Received %d bytes\n", numBytes);
+				}
+			}
+		}
+	}
+}