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github
nhooyr
websocket
Commits
2cf6c288
Unverified
Commit
2cf6c288
authored
Nov 12, 2019
by
Anmol Sethi
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Implement compression writer and reader pooling
parent
53c1aea0
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conn.go
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2cf6c288
...
@@ -4,6 +4,7 @@ package websocket
...
@@ -4,6 +4,7 @@ package websocket
import
(
import
(
"bufio"
"bufio"
"compress/flate"
"context"
"context"
"crypto/rand"
"crypto/rand"
"encoding/binary"
"encoding/binary"
...
@@ -1063,3 +1064,55 @@ func (c *Conn) extractBufioWriterBuf(w io.Writer) {
...
@@ -1063,3 +1064,55 @@ func (c *Conn) extractBufioWriterBuf(w io.Writer) {
c
.
bw
.
Reset
(
w
)
c
.
bw
.
Reset
(
w
)
}
}
var
flateWriterPoolsMu
sync
.
Mutex
var
flateWriterPools
=
make
(
map
[
int
]
*
sync
.
Pool
)
func
getFlateWriterPool
(
level
int
)
*
sync
.
Pool
{
flateWriterPoolsMu
.
Lock
()
defer
flateWriterPoolsMu
.
Unlock
()
p
,
ok
:=
flateWriterPools
[
level
]
if
!
ok
{
p
=
&
sync
.
Pool
{
New
:
func
()
interface
{}
{
w
,
err
:=
flate
.
NewWriter
(
nil
,
level
)
if
err
!=
nil
{
panic
(
"websocket: unexpected error from flate.NewWriter: "
+
err
.
Error
())
}
return
w
},
}
flateWriterPools
[
level
]
=
p
}
return
p
}
func
getFlateWriter
(
w
io
.
Writer
,
level
int
)
*
flate
.
Writer
{
p
:=
getFlateWriterPool
(
level
)
fw
:=
p
.
Get
()
.
(
*
flate
.
Writer
)
fw
.
Reset
(
w
)
return
fw
}
func
putFlateWriter
(
w
*
flate
.
Writer
,
level
int
)
{
p
:=
getFlateWriterPool
(
level
)
p
.
Put
(
w
)
}
var
flateReaderPool
=
&
sync
.
Pool
{
New
:
func
()
interface
{}
{
return
flate
.
NewReader
(
nil
)
},
}
func
getFlateReader
(
r
flate
.
Reader
)
io
.
ReadCloser
{
fr
:=
flateReaderPool
.
Get
()
.
(
io
.
ReadCloser
)
fr
.
(
flate
.
Resetter
)
.
Reset
(
r
,
nil
)
return
fr
}
func
putFlateReader
(
fr
io
.
ReadCloser
)
{
flateReaderPool
.
Put
(
fr
)
}
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