blob: 82b438b512b1d72973a99e48d3761e9d551ca950 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
// 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_
#pragma once
#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(content::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(content::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);
};
#endif // CONTENT_BROWSER_GEOLOCATION_LIBGPS_WRAPPER_LINUX_H_
|
