Initial Commit

lib/ipcomm.cpp

@@ -0,0 +1,48 @@
+#include <QDebug>
+#include <QString>
+#include <QSharedMemory>
+#include <QSystemSemaphore>
+
+#include "../commons.h"
+
+// Multiple instances: KK1D, 17 Jul 2013
+QSharedMemory mem_jt9;
+
+// Semaphore not changed, as the acquire/release calls do not 
+// appear to be used anywhere.  
+QSystemSemaphore sem_jt9("sem_jt9", 1, QSystemSemaphore::Open);
+
+extern "C" {
+  bool attach_jt9_();
+  bool create_jt9_(int nsize);
+  bool detach_jt9_();
+  bool lock_jt9_();
+  bool unlock_jt9_();
+  struct jt9com * address_jt9_();
+  int size_jt9_();
+// Multiple instances:  wrapper for QSharedMemory::setKey()
+  bool setkey_jt9_(char* mykey, int mykey_len);
+
+  bool acquire_jt9_();
+  bool release_jt9_();
+}
+
+bool attach_jt9_() {return mem_jt9.attach();}
+bool create_jt9_(int nsize) {return mem_jt9.create(nsize);}
+bool detach_jt9_() {return mem_jt9.detach();}
+bool lock_jt9_() {return mem_jt9.lock();}
+bool unlock_jt9_() {return mem_jt9.unlock();}
+struct jt9com * address_jt9_() {return reinterpret_cast<struct jt9com *>(mem_jt9.data());}
+int size_jt9_() {return (int)mem_jt9.size();}
+
+// Multiple instances:
+bool setkey_jt9_(char* mykey, int mykey_len) {
+   char *tempstr = (char *)calloc(mykey_len+1,1);
+   memset(tempstr, 0, mykey_len+1);
+   strncpy(tempstr, mykey, mykey_len);
+   QString s1 = QString(QLatin1String(tempstr));
+   mem_jt9.setKey(s1);
+   return true;}
+
+bool acquire_jt9_() {return sem_jt9.acquire();}
+bool release_jt9_() {return sem_jt9.release();}