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Unified Diff: sql/mojo/enable_mojo_fs.h

Issue 1176653002: mandoline filesystem: add a sqlite3 vfs to proxy filesystem usage. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Merge with ToT and fix the test import. Created 5 years, 6 months ago
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Index: sql/mojo/enable_mojo_fs.h
diff --git a/sql/mojo/enable_mojo_fs.h b/sql/mojo/enable_mojo_fs.h
new file mode 100644
index 0000000000000000000000000000000000000000..86fb0b15b31afb847d4de90b1207ffb78211ceac
--- /dev/null
+++ b/sql/mojo/enable_mojo_fs.h
@@ -0,0 +1,31 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef SQL_MOJO_ENABLE_MOJO_FS_H_
+#define SQL_MOJO_ENABLE_MOJO_FS_H_
+
+#include "base/macros.h"
+#include "components/filesystem/public/interfaces/directory.mojom.h"
+
+namespace sql {
+
+// Changes the default sqlite3 vfs to a vfs that uses proxies calls to the
+// mojo:filesystem service. Instantiating this object transparently changes how
+// the entire //sql/ subsystem works in the process of the caller; all paths
+// are treated as relative to |directory|.
+class ScopedMojoFilesystemVFS {
+ public:
+ explicit ScopedMojoFilesystemVFS(filesystem::DirectoryPtr directory);
+ ~ScopedMojoFilesystemVFS();
+
+ // Returns the directory of the current VFS.
+ filesystem::DirectoryPtr& GetDirectory();
+
+ private:
+ DISALLOW_COPY_AND_ASSIGN(ScopedMojoFilesystemVFS);
+};
+
+} // namespace sql
+
+#endif // SQL_MOJO_ENABLE_MOJO_FS_H_

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