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+// Copyright (c) 2012 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.
+
+// Defines a wrapper around the C libgps API (gps.h). Similar to the libgpsmm.h
+// API provided by that package.
+
+#ifndef CONTENT_BROWSER_GEOLOCATION_LIBGPS_WRAPPER_LINUX_H_
+#define CONTENT_BROWSER_GEOLOCATION_LIBGPS_WRAPPER_LINUX_H_
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+#include "content/common/content_export.h"
+
+struct gps_data_t;
+
+namespace content {
+struct Geoposition;
+
+class CONTENT_EXPORT LibGps {
+ public:
+ virtual ~LibGps();
+ // Attempts to dynamically load the libgps.so library and returns NULL on
+ // failure.
+ static LibGps* New();
+
+ bool Start();
+ void Stop();
+ bool Read(Geoposition* position);
+
+ protected:
+ typedef int (*gps_open_fn)(const char*, const char*, struct gps_data_t*);
+ typedef int (*gps_close_fn)(struct gps_data_t*);
+ typedef int (*gps_read_fn)(struct gps_data_t*);
+
+ explicit LibGps(void* dl_handle,
+ gps_open_fn gps_open,
+ gps_close_fn gps_close,
+ gps_read_fn gps_read);
+
+ // Returns false if there is not fix available.
+ virtual bool GetPositionIfFixed(Geoposition* position);
+
+ private:
+ void* dl_handle_;
+ gps_open_fn gps_open_;
+ gps_close_fn gps_close_;
+ gps_read_fn gps_read_;
+
+ scoped_ptr<gps_data_t> gps_data_;
+ bool is_open_;
+
+ DISALLOW_COPY_AND_ASSIGN(LibGps);
+};
+
+} // namespace content
+
+#endif // CONTENT_BROWSER_GEOLOCATION_LIBGPS_WRAPPER_LINUX_H_