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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
package filesys
import (
"fmt"
"github.com/chrislusf/seaweedfs/weed/filesys/page_writer"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"io"
"os"
"sync"
"time"
)
type TempFileDirtyPages struct {
f *File
tf *os.File
writtenIntervals *page_writer.WrittenContinuousIntervals
writeWaitGroup sync.WaitGroup
pageAddLock sync.Mutex
chunkAddLock sync.Mutex
lastErr error
collection string
replication string
}
func newTempFileDirtyPages(file *File) *TempFileDirtyPages {
tempFile := &TempFileDirtyPages{
f: file,
writtenIntervals: &page_writer.WrittenContinuousIntervals{},
}
return tempFile
}
func (pages *TempFileDirtyPages) AddPage(offset int64, data []byte) {
pages.pageAddLock.Lock()
defer pages.pageAddLock.Unlock()
if pages.tf == nil {
tf, err := os.CreateTemp(pages.f.wfs.option.getTempFilePageDir(), "")
if err != nil {
glog.Errorf("create temp file: %v", err)
pages.lastErr = err
return
}
pages.tf = tf
pages.writtenIntervals.TempFile = tf
pages.writtenIntervals.LastOffset = 0
}
writtenOffset := pages.writtenIntervals.LastOffset
dataSize := int64(len(data))
// glog.V(4).Infof("%s AddPage %v at %d [%d,%d)", pages.f.fullpath(), pages.tf.Name(), writtenOffset, offset, offset+dataSize)
if _, err := pages.tf.WriteAt(data, writtenOffset); err != nil {
pages.lastErr = err
} else {
pages.writtenIntervals.AddInterval(writtenOffset, len(data), offset)
pages.writtenIntervals.LastOffset += dataSize
}
// pages.writtenIntervals.debug()
return
}
func (pages *TempFileDirtyPages) FlushData() error {
pages.saveExistingPagesToStorage()
pages.writeWaitGroup.Wait()
if pages.lastErr != nil {
return fmt.Errorf("flush data: %v", pages.lastErr)
}
pages.pageAddLock.Lock()
defer pages.pageAddLock.Unlock()
if pages.tf != nil {
pages.writtenIntervals.TempFile = nil
pages.writtenIntervals.Lists = nil
pages.tf.Close()
os.Remove(pages.tf.Name())
pages.tf = nil
}
return nil
}
func (pages *TempFileDirtyPages) saveExistingPagesToStorage() {
pageSize := pages.f.wfs.option.ChunkSizeLimit
// glog.V(4).Infof("%v saveExistingPagesToStorage %d lists", pages.f.Name, len(pages.writtenIntervals.lists))
for _, list := range pages.writtenIntervals.Lists {
listStopOffset := list.Offset() + list.Size()
for uploadedOffset := int64(0); uploadedOffset < listStopOffset; uploadedOffset += pageSize {
start, stop := max(list.Offset(), uploadedOffset), min(listStopOffset, uploadedOffset+pageSize)
if start >= stop {
continue
}
// glog.V(4).Infof("uploading %v [%d,%d) %d/%d", pages.f.Name, start, stop, i, len(pages.writtenIntervals.lists))
pages.saveToStorage(list.ToReader(start, stop), start, stop-start)
}
}
}
func (pages *TempFileDirtyPages) saveToStorage(reader io.Reader, offset int64, size int64) {
mtime := time.Now().UnixNano()
pages.writeWaitGroup.Add(1)
writer := func() {
defer pages.writeWaitGroup.Done()
reader = io.LimitReader(reader, size)
chunk, collection, replication, err := pages.f.wfs.saveDataAsChunk(pages.f.fullpath())(reader, pages.f.Name, offset)
if err != nil {
glog.V(0).Infof("%s saveToStorage [%d,%d): %v", pages.f.fullpath(), offset, offset+size, err)
pages.lastErr = err
return
}
chunk.Mtime = mtime
pages.collection, pages.replication = collection, replication
pages.chunkAddLock.Lock()
defer pages.chunkAddLock.Unlock()
pages.f.addChunks([]*filer_pb.FileChunk{chunk})
glog.V(3).Infof("%s saveToStorage %s [%d,%d)", pages.f.fullpath(), chunk.FileId, offset, offset+size)
}
if pages.f.wfs.concurrentWriters != nil {
pages.f.wfs.concurrentWriters.Execute(writer)
} else {
go writer()
}
}
func (pages *TempFileDirtyPages) ReadDirtyDataAt(data []byte, startOffset int64) (maxStop int64) {
return pages.writtenIntervals.ReadDataAt(data, startOffset)
}
func (pages *TempFileDirtyPages) GetStorageOptions() (collection, replication string) {
return pages.collection, pages.replication
}
|
