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-rw-r--r--netwerk/cache/nsDeleteDir.h80
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diff --git a/netwerk/cache/nsDeleteDir.h b/netwerk/cache/nsDeleteDir.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsDeleteDir_h__
+#define nsDeleteDir_h__
+
+#include "nsCOMPtr.h"
+#include "nsCOMArray.h"
+#include "mozilla/Mutex.h"
+#include "mozilla/CondVar.h"
+
+class nsIFile;
+class nsIThread;
+class nsITimer;
+
+
+class nsDeleteDir {
+public:
+ nsDeleteDir();
+ ~nsDeleteDir();
+
+ static nsresult Init();
+ static nsresult Shutdown(bool finishDeleting);
+
+ /**
+ * This routine attempts to delete a directory that may contain some files
+ * that are still in use. This latter point is only an issue on Windows and
+ * a few other systems.
+ *
+ * If the moveToTrash parameter is true we first rename the given directory
+ * "foo.Trash123" (where "foo" is the original directory name, and "123" is
+ * a random number, in order to support multiple concurrent deletes). The
+ * directory is then deleted, file-by-file, on a background thread.
+ *
+ * If the moveToTrash parameter is false, then the given directory is deleted
+ * directly.
+ *
+ * If 'delay' is non-zero, the directory will not be deleted until the
+ * specified number of milliseconds have passed. (The directory is still
+ * renamed immediately if 'moveToTrash' is passed, so upon return it is safe
+ * to create a directory with the same name).
+ */
+ static nsresult DeleteDir(nsIFile *dir, bool moveToTrash, uint32_t delay = 0);
+
+ /**
+ * Returns the trash directory corresponding to the given directory.
+ */
+ static nsresult GetTrashDir(nsIFile *dir, nsCOMPtr<nsIFile> *result);
+
+ /**
+ * Remove all trashes left from previous run. This function does nothing when
+ * called second and more times.
+ */
+ static nsresult RemoveOldTrashes(nsIFile *cacheDir);
+
+ static void TimerCallback(nsITimer *aTimer, void *arg);
+
+private:
+ friend class nsBlockOnBackgroundThreadEvent;
+ friend class nsDestroyThreadEvent;
+
+ nsresult InitThread();
+ void DestroyThread();
+ nsresult PostTimer(void *arg, uint32_t delay);
+ nsresult RemoveDir(nsIFile *file, bool *stopDeleting);
+
+ static nsDeleteDir * gInstance;
+ mozilla::Mutex mLock;
+ mozilla::CondVar mCondVar;
+ bool mNotified;
+ nsCOMArray<nsITimer> mTimers;
+ nsCOMPtr<nsIThread> mThread;
+ bool mShutdownPending;
+ bool mStopDeleting;
+};
+
+#endif // nsDeleteDir_h__