Moved initialization of shared memory segment to the main funcion in order to exit gracefully in case of errors.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@3163 ab8295b8-cf94-4d9e-aec4-7959e3be5d79

main.cpp

@@ -2,6 +2,8 @@
 #include <QtGui/QApplication>
 #include "mainwindow.h"
 
+QSharedMemory mem_jt9("mem_jt9");
+
 int main(int argc, char *argv[])
 {
   QApplication a(argc, argv);
@@ -18,7 +20,20 @@ int main(int argc, char *argv[])
      a.setFont(font);
   }
 
-  MainWindow w;
+  // Create and initialize shared memory segment
+  if(!mem_jt9.attach()) {
+    if (!mem_jt9.create(sizeof(jt9com_))) {
+      QMessageBox::critical( 0, "Error", "Unable to create shared memory segment.");
+      exit(1);
+    }
+  }
+  char *to = (char*)mem_jt9.data();
+  int size=sizeof(jt9com_);
+  if(jt9com_.newdat==0) {
+  }
+  memset(to,0,size);         //Zero all decoding params in shared memory
+
+  MainWindow w(&mem_jt9);
   w.show();
   return a.exec();
 }