blob: e912b1c996b1e7eb42cd05f740f93128dac6b684 (
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
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
#include "FileSink.h"
#include <QFile>
#include <QFileInfo>
#include "Env.h"
#include "FileSystem.h"
namespace Net {
FileSink::FileSink(QString filename)
:m_filename(filename)
{
// nil
};
FileSink::~FileSink()
{
// nil
};
JobStatus FileSink::init(QNetworkRequest& request)
{
auto result = initCache(request);
if(result != Job_InProgress)
{
return result;
}
// create a new save file and open it for writing
if (!FS::ensureFilePathExists(m_filename))
{
qCritical() << "Could not create folder for " + m_filename;
return Job_Failed;
}
wroteAnyData = false;
m_output_file.reset(new QSaveFile(m_filename));
if (!m_output_file->open(QIODevice::WriteOnly))
{
qCritical() << "Could not open " + m_filename + " for writing";
return Job_Failed;
}
if(initAllValidators(request))
return Job_InProgress;
return Job_Failed;
}
JobStatus FileSink::initCache(QNetworkRequest &)
{
return Job_InProgress;
}
JobStatus FileSink::write(QByteArray& data)
{
if (!writeAllValidators(data) || m_output_file->write(data) != data.size())
{
qCritical() << "Failed writing into " + m_filename;
m_output_file->cancelWriting();
m_output_file.reset();
wroteAnyData = false;
return Job_Failed;
}
wroteAnyData = true;
return Job_InProgress;
}
JobStatus FileSink::abort()
{
m_output_file->cancelWriting();
failAllValidators();
return Job_Failed;
}
JobStatus FileSink::finalize(QNetworkReply& reply)
{
// if we wrote any data to the save file, we try to commit the data to the real file.
if (wroteAnyData)
{
// ask validators for data consistency
// we only do this for actual downloads, not 'your data is still the same' cache hits
if(!finalizeAllValidators(reply))
return Job_Failed;
// nothing went wrong...
if (!m_output_file->commit())
{
qCritical() << "Failed to commit changes to " << m_filename;
m_output_file->cancelWriting();
return Job_Failed;
}
}
// then get rid of the save file
m_output_file.reset();
return finalizeCache(reply);
}
JobStatus FileSink::finalizeCache(QNetworkReply &)
{
return Job_Finished;
}
}
|
