Socket throttling allowing associated with testing Macromaker server …

otsdaq/NetworkUtilities/TransceiverSocket.cc

@@ -2,8 +2,10 @@
 #include "otsdaq/Macros/CoutMacros.h"
 #include "otsdaq/MessageFacility/MessageFacility.h"
 
+#include <chrono>
 #include <iostream>
-#include <thread>  // std::this_thread
+#include <mutex>
+#include <thread>
 
 using namespace ots;
 
@@ -27,7 +29,8 @@ TransceiverSocket::~TransceiverSocket(void) {}
 /// returns 0 on success
 int TransceiverSocket::acknowledge(const std::string& buffer,
                                    bool               verbose /* = false */,
-                                   size_t             maxChunkSize /* = 1500 */)
+                                   size_t             maxChunkSize /* = 1500 */,
+                                   unsigned int       interPacketGapUSeconds /* = 0 */)
 {
 	// lockout other senders for the remainder of the scope
 	std::lock_guard<std::mutex> lock(sendMutex_);
@@ -59,6 +62,8 @@ int TransceiverSocket::acknowledge(const std::string& buffer,
 		                    (struct sockaddr*)&(ReceiverSocket::fromAddress_),
 		                    sizeof(sockaddr_in));
 		offset += sendToSize / sizeInBytes;
+		if(interPacketGapUSeconds > 0 && offset < buffer.size() && sendToSize > 0)
+			usleep(interPacketGapUSeconds);
 	}
 
 	if(sendToSize <= 0)

otsdaq/NetworkUtilities/TransceiverSocket.h

@@ -14,9 +14,11 @@ class TransceiverSocket : public TransmitterSocket, public ReceiverSocket
 	TransceiverSocket(std::string IPAddress, unsigned int port = 0);
 	virtual ~TransceiverSocket(void);
 
+	/// acknowledge() responds to last receive location
 	int acknowledge(const std::string& buffer,
-	                bool               verbose      = false,
-	                size_t             maxChunkSize = 1500);  ///< responds to last receive location
+	                bool               verbose                = false,
+	                size_t             maxChunkSize           = 1500,
+	                unsigned int       interPacketGapUSeconds = 0);
 
 	std::string sendAndReceive(Socket&            toSocket,
 	                           const std::string& sendBuffer,

tools/ots

@@ -916,6 +916,12 @@ launchOTSMacromaker() {
 	out "${Blue}${REV}                                                       ${RstClr}${Reset}" #Reset needed to prevent highlight of text in reverse searches after this output
 	out #blank line
 
+	if [ "x$OTS_MACROMAKER_UDP_IP" == "x" ] || [ "x$OTS_MACROMAKER_UDP_PORT" == "x" ]; then
+		warning "If you would like to enable command-line access to your MacroMaker mode instance, then before launching please set an IP/PORT compatible with the the system's networking interfaces using environment variables OTS_MACROMAKER_UDP_IP and OTS_MACROMAKER_UDP_PORT"
+		out #blank line
+	fi
+
+
 	unset ContextPIDArray #reset
 	unset ContextPIDNameArray #reset
 	unset ContextPIDIsAliveArray #reset