Remote control uses threads

1 files changed, 57 insertions, 0 deletions

diff --git a/thread.h b/thread.h
new file mode 100644
index 00000000..86b9e922
--- /dev/null
+++ b/thread.h
@@ -0,0 +1,57 @@
+/*
+ * thread.h: A simple thread base class
+ *
+ * See the main source file 'vdr.c' for copyright information and
+ * how to reach the author.
+ *
+ * $Id: thread.h 1.1 2000/10/08 08:36:21 kls Exp $
+ */
+
+#ifndef __THREAD_H
+#define __THREAD_H
+
+#include <pthread.h>
+#include <sys/types.h>
+
+class cThread {
+  friend class cThreadLock;
+private:
+  pthread_t thread;
+  pthread_mutex_t mutex;
+  pid_t parentPid, lockingPid;
+  int locked;
+  bool running;
+  static bool signalHandlerInstalled;
+  static void SignalHandler(int signum);
+  static void *StartThread(cThread *Thread);
+  bool Lock(void);
+  void Unlock(void);
+protected:
+  void WakeUp(void);
+  virtual void Action(void) = 0;
+  void Stop(void);
+public:
+  cThread(void);
+  virtual ~cThread();
+  bool Start(void);
+  };
+
+// cThreadLock can be used to easily set a lock in a thread and make absolutely
+// sure that it will be unlocked when the block will be left. Several locks can
+// be stacked, so a function that makes many calls to another function which uses
+// cThreadLock may itself use a cThreadLock to make one longer lock instead of many
+// short ones.
+
+class cThreadLock {
+private:
+  cThread *thread;
+  bool locked;
+public:
+  cThreadLock(cThread *Thread);
+  ~cThreadLock();
+  bool Locked(void);
+  };
+
+#define LOCK_THREAD cThreadLock ThreadLock(this)
+
+#endif //__THREAD_H