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
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/**
* @file llupdatedownloader.h
*
* $LicenseInfo:firstyear=2010&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_UPDATE_DOWNLOADER_H
#define LL_UPDATE_DOWNLOADER_H
#include <stdexcept>
#include <string>
#include <boost/shared_ptr.hpp>
#include "lluri.h"
//
// An asynchronous download service for fetching updates.
//
class LLUpdateDownloader
{
public:
class BusyError;
class Client;
class Implementation;
LLUpdateDownloader(Client & client);
// Cancel any in progress download; a no op if none is in progress.
void cancel(void);
// Start a new download.
//
// This method will throw a BusyException instance if a download is already
// in progress.
void download(LLURI const & uri);
// Returns true if a download is in progress.
bool isDownloading(void);
private:
boost::shared_ptr<Implementation> mImplementation;
};
//
// An interface to be implemented by clients initiating a update download.
//
class LLUpdateDownloader::Client {
public:
// The download has completed successfully.
virtual void downloadComplete(void) = 0;
// The download failed.
virtual void downloadError(std::string const & message) = 0;
};
#endif
|
