New upstream version 8.1.0

client_module/source/common/net/msghelpers/MsgHelperAck.h

@@ -0,0 +1,59 @@
+#ifndef MSGHELPERACK_H_
+#define MSGHELPERACK_H_
+
+#include <common/net/message/control/AckMsgEx.h>
+#include <common/Common.h>
+#include <components/DatagramListener.h>
+#include <app/App.h>
+
+
+// inliners
+static inline bool MsgHelperAck_respondToAckRequest(App* app, const char* ackID,
+   fhgfs_sockaddr_in* fromAddr, Socket* sock, char* respBuf, size_t bufLen);
+
+
+/**
+ * Note: This will only send a response if an ackID has been set.
+ *
+ * @return true if ackID was set
+ */
+bool MsgHelperAck_respondToAckRequest(App* app, const char* ackID,
+   fhgfs_sockaddr_in* fromAddr, Socket* sock, char* respBuf, size_t bufLen)
+{
+   Logger* log = App_getLogger(app);
+   const char* logContext = "Ack response";
+
+   AckMsgEx respMsg;
+   unsigned respLen;
+   bool serializeRes;
+   ssize_t sendRes;
+
+   if(!StringTk_hasLength(ackID) )
+      return false;
+
+   AckMsgEx_initFromValue(&respMsg, ackID);
+
+   respLen = NetMessage_getMsgLength( (NetMessage*)&respMsg);
+   serializeRes = NetMessage_serialize( (NetMessage*)&respMsg, respBuf, bufLen);
+   if(unlikely(!serializeRes) )
+   {
+      Logger_logErrFormatted(log, logContext, "Unable to serialize response");
+      goto err_uninit;
+   }
+
+   if(fromAddr)
+   { // datagram => sync via dgramLis send method
+      DatagramListener* dgramLis = App_getDatagramListener(app);
+      sendRes = DatagramListener_sendto_kernel(dgramLis, respBuf, respLen, 0, fromAddr);
+   }
+   else
+      sendRes = Socket_sendto_kernel(sock, respBuf, respLen, 0, NULL);
+
+   if(unlikely(sendRes <= 0) )
+      Logger_logErrFormatted(log, logContext, "Send error. ErrCode: %lld", (long long)sendRes);
+
+err_uninit:
+   return true;
+}
+
+#endif /* MSGHELPERACK_H_ */