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bor
Commits
849408dd
Commit
849408dd
authored
Jan 9, 2014
by
Jeffrey Wilcke
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Peer handling
parent
01740695
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Changes
2
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2 changed files
peer.go
+93
-0
93 additions, 0 deletions
peer.go
server.go
+18
-2
18 additions, 2 deletions
server.go
with
111 additions
and
2 deletions
peer.go
0 → 100644
+
93
−
0
View file @
849408dd
package
main
import
(
"net"
"errors"
"log"
)
type
InMsg
struct
{
msgType
string
// Specifies how the encoded data should be interpreted
data
[]
byte
// RLP encoded data
}
func
ReadMessage
(
conn
net
.
Conn
)
(
*
InMsg
,
error
)
{
buff
:=
make
([]
byte
,
4069
)
// Wait for a message from this peer
n
,
err
:=
conn
.
Read
(
buff
)
if
err
!=
nil
{
return
nil
,
err
}
else
if
n
==
0
{
return
nil
,
errors
.
New
(
"Empty message received"
)
}
// Read the header (MAX n)
decoder
:=
NewRlpDecoder
(
buff
[
:
n
])
t
:=
decoder
.
Get
(
0
)
.
AsString
()
if
t
==
""
{
return
nil
,
errors
.
New
(
"Data contained no data type"
)
}
return
&
InMsg
{
msgType
:
t
,
data
:
decoder
.
Get
(
1
)
.
AsBytes
()},
nil
}
type
OutMsg
struct
{
data
[]
byte
}
type
Peer
struct
{
server
*
Server
conn
net
.
Conn
outputQueue
chan
OutMsg
quit
chan
bool
}
func
NewPeer
(
conn
net
.
Conn
,
server
*
Server
)
*
Peer
{
return
&
Peer
{
outputQueue
:
make
(
chan
OutMsg
,
1
),
// Buffered chan of 1 is enough
quit
:
make
(
chan
bool
),
server
:
server
,
conn
:
conn
,
}
}
// Outputs any RLP encoded data to the peer
func
(
p
*
Peer
)
QueueMessage
(
data
[]
byte
)
{
p
.
outputQueue
<-
OutMsg
{
data
:
data
}
}
func
(
p
*
Peer
)
HandleOutbound
()
{
out
:
for
{
switch
{
case
<-
p
.
quit
:
break
out
}
}
}
func
(
p
*
Peer
)
HandleInbound
()
{
defer
p
.
conn
.
Close
()
out
:
for
{
msg
,
err
:=
ReadMessage
(
p
.
conn
)
if
err
!=
nil
{
log
.
Println
(
err
)
break
out
}
log
.
Println
(
msg
)
}
// Notify the out handler we're quiting
p
.
quit
<-
true
}
func
(
p
*
Peer
)
Start
()
{
go
p
.
HandleOutbound
()
go
p
.
HandleInbound
()
}
This diff is collapsed.
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server.go
+
18
−
2
View file @
849408dd
...
@@ -2,7 +2,8 @@ package main
...
@@ -2,7 +2,8 @@ package main
import
(
import
(
"container/list"
"container/list"
"time"
"net"
"log"
)
)
var
Db
*
LDBDatabase
var
Db
*
LDBDatabase
...
@@ -36,12 +37,27 @@ func NewServer() (*Server, error) {
...
@@ -36,12 +37,27 @@ func NewServer() (*Server, error) {
return
server
,
nil
return
server
,
nil
}
}
func
(
s
*
Server
)
AddPeer
(
conn
net
.
Conn
)
{
s
.
peers
.
PushBack
(
NewPeer
(
conn
,
s
))
}
// Start the server
// Start the server
func
(
s
*
Server
)
Start
()
{
func
(
s
*
Server
)
Start
()
{
// For now this function just blocks the main thread
// For now this function just blocks the main thread
ln
,
err
:=
net
.
Listen
(
"tcp"
,
":12345"
)
if
err
!=
nil
{
log
.
Fatal
(
err
)
}
go
func
()
{
go
func
()
{
for
{
for
{
time
.
Sleep
(
time
.
Second
)
conn
,
err
:=
ln
.
Accept
()
if
err
!=
nil
{
log
.
Println
(
err
)
continue
}
go
s
.
AddPeer
(
conn
)
}
}
}()
}()
}
}
...
...
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