BigClean: Input & Archive are a little bit more threadsafe now.

1 files changed, 45 insertions, 0 deletions

diff --git a/include/LockSmith.h b/include/LockSmith.h
new file mode 100644
index 0000000..fe2dc02
--- /dev/null
+++ b/include/LockSmith.h
@@ -0,0 +1,45 @@
+#ifndef __LOCKSMITH_H__
+#define __LOCKSMITH_H__
+
+#include <Exceptions.h>
+#include <Atomic.h>
+
+/*!
+  The locker class, if it exists, will be used to produce interlocking
+  inside the nested classes when needed. Define it if you're going to build
+  a real threaded software with Baltisot.
+*/
+
+class locker_t : public Base {
+  public:
+    virtual void lock() {}
+    virtual void unlock() {}
+};
+
+class LockSmith : public Base {
+  public:
+      LockSmith() { GlobalLockSmith = this; }
+    static locker_t * SpawnLock() { return GlobalLockSmith->SpawnSpecificLock(); }
+  protected:
+    virtual locker_t * SpawnSpecificLock() { return new locker_t(); }
+    static LockSmith * GlobalLockSmith;
+};
+
+class iLock : public Base {
+  public:
+      iLock() { }
+      ~iLock() { if (locker) delete(locker); }
+    void lock() {
+        if (LIKELY(locker)) {
+            locker->lock();
+        } else {
+            locker = LockSmith::SpawnLock();
+            locker->lock();
+        }
+    }
+    void unlock() { locker->unlock(); }
+  private:
+    locker_t * locker;
+};
+
+#endif