Build fix: support boost 1.87+

The cray simulator would  not start after a system wide boost update. Re-building also failed as the code relied on stuff that has been depreciated in boost 1.87. This commit provides a fix.

simulator/httpd/server.cpp

@@ -42,7 +42,7 @@ void server::setup(const std::string& address, const std::string& port)
 	boost::asio::ip::tcp::endpoint endpoint(boost::asio::ip::tcp::v4(), boost::lexical_cast<short>(port));
 	if (address != "*") {
 		boost::asio::ip::tcp::resolver resolver(io_service_);
-		endpoint = *resolver.resolve({ address, port });
+		endpoint = *resolver.resolve(address, port).begin();
 	}
 	acceptor_.open(endpoint.protocol());
 	acceptor_.set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));

simulator/httpd/server.hpp

@@ -45,7 +45,7 @@ private:
   void do_await_stop();
 
   /// The io_service used to perform asynchronous operations.
-  boost::asio::io_service io_service_;
+  boost::asio::io_context io_service_;
 
   /// The signal_set is used to register for process termination notifications.
   boost::asio::signal_set signals_;

simulator/sim_lib/console.cpp

@@ -203,7 +203,7 @@ void Console_c::Tick() {
 }
 
 void Console_c::Poll() {
-	mIoService.reset();
+	mIoService.restart();
 	mIoService.poll();
 }
 
@@ -467,7 +467,7 @@ void Console_c::AcceptIfNeeded(bool aSilent) {
 	}
 }
 
-boost::asio::io_service Console_c::mIoService;
+boost::asio::io_context Console_c::mIoService;
 
 #if defined(PARTIAL_DEBUG) && defined(_MSC_VER)
 #pragma optimize ("", on)

simulator/sim_lib/console.h

@@ -101,7 +101,7 @@ protected:
 	boost::optional<std::string> mConsoleCommand;
 	boost::optional<std::string> mNewTerminalCommand;
 
-	static boost::asio::io_service mIoService;
+	static boost::asio::io_context mIoService;
 	std::shared_ptr<boost::asio::ip::tcp::acceptor> mServerSocket;
 	std::shared_ptr<boost::asio::ip::tcp::socket> mConnectionSocket;
 	boost::array<char, 1> mReceiveBuf;

simulator/sim_lib/iop_concentrator.cpp

@@ -78,7 +78,7 @@ void IopConcentrator_c::ProcessReceivedBytes() {
 	size_t i;
 	size_t size = mReceiveBuf.size();
 	while (size > 0) {
-		const uint8_t *data = boost::asio::buffer_cast<const uint8_t *>(mReceiveBuf.data());
+		const uint8_t *data = static_cast<const uint8_t *>(mReceiveBuf.data().data());
 		switch (mRcvState) {
 			case State_RcvLcpPduLength: // process 4-byte PDU length value
 				if (size < 4) return;
@@ -325,7 +325,7 @@ void IopConcentrator_c::Tick() {
         }
 }
 
-boost::asio::io_service IopConcentrator_c::mIoService;
+boost::asio::io_context IopConcentrator_c::mIoService;
 
 /////////////////////////////////////////////////////////
 // IopConcentratorChannel_c

simulator/sim_lib/iop_concentrator.h

@@ -147,7 +147,7 @@ protected:
         std::shared_ptr<boost::asio::ip::tcp::socket> mConnectionSocket;
 	std::vector<CInt_t> mFromCrayData;
 	IopConcentratorChannel_c mInputChannel;
-        static boost::asio::io_service mIoService;
+        static boost::asio::io_context mIoService;
 	uint8_t mLastRcvdMessageCode;
 	uint8_t mLastXmitMessageCode;
         std::shared_ptr<boost::asio::ip::tcp::acceptor> mListenSocket;