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Code Issues Releases Wiki Activity

conn: inch BatchSize toward being non-dynamic

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There's not really a use at the moment for making this configurable, and
once bind_windows.go behaves like bind_std.go, we'll be able to use
constants everywhere. So begin that simplification now.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld 2023-03-04 15:25:46 +01:00
parent f26efb65f2
commit dbd949307e
8 changed files with 19 additions and 23 deletions
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18
conn/bind_std.go
View File

@ -31,21 +31,13 @@ type StdNetBind struct {
blackhole6 bool
ipv4PC *ipv4.PacketConn
ipv6PC *ipv6.PacketConn
batchSize int
udpAddrPool sync.Pool
ipv4MsgsPool sync.Pool
ipv6MsgsPool sync.Pool
}
func NewStdNetBind() Bind { return NewStdNetBindBatch(DefaultBatchSize) }
func NewStdNetBindBatch(maxBatchSize int) Bind {
if maxBatchSize == 0 {
maxBatchSize = DefaultBatchSize
}
func NewStdNetBind() Bind {
return &StdNetBind{
batchSize: maxBatchSize,
udpAddrPool: sync.Pool{
New: func() any {
return &net.UDPAddr{
@ -56,7 +48,7 @@ func NewStdNetBindBatch(maxBatchSize int) Bind {
ipv4MsgsPool: sync.Pool{
New: func() any {
msgs := make([]ipv4.Message, maxBatchSize)
msgs := make([]ipv4.Message, IdealBatchSize)
for i := range msgs {
msgs[i].Buffers = make(net.Buffers, 1)
msgs[i].OOB = make([]byte, srcControlSize)
@ -67,7 +59,7 @@ func NewStdNetBindBatch(maxBatchSize int) Bind {
ipv6MsgsPool: sync.Pool{
New: func() any {
msgs := make([]ipv6.Message, maxBatchSize)
msgs := make([]ipv6.Message, IdealBatchSize)
for i := range msgs {
msgs[i].Buffers = make(net.Buffers, 1)
msgs[i].OOB = make([]byte, srcControlSize)
@ -240,8 +232,10 @@ func (s *StdNetBind) receiveIPv6(buffs [][]byte, sizes []int, eps []Endpoint) (n
return numMsgs, nil
}
// TODO: When all Binds handle IdealBatchSize, remove this dynamic function and
// rename the IdealBatchSize constant to BatchSize.
func (s *StdNetBind) BatchSize() int {
return s.batchSize
return IdealBatchSize
}
func (s *StdNetBind) Close() error {

2
conn/bind_windows.go
View File

@ -321,6 +321,8 @@ func (bind *WinRingBind) Close() error {
return nil
}
// TODO: When all Binds handle IdealBatchSize, remove this dynamic function and
// rename the IdealBatchSize constant to BatchSize.
func (bind *WinRingBind) BatchSize() int {
// TODO: implement batching in and out of the ring
return 1

2
conn/conn.go
View File

@ -16,7 +16,7 @@ import (
)
const (
DefaultBatchSize = 128 // maximum number of packets handled per read and write
IdealBatchSize = 128 // maximum number of packets handled per read and write
)
// A ReceiveFunc receives at least one packet from the network and writes them

2
device/queueconstants_android.go
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@ -10,7 +10,7 @@ import "golang.zx2c4.com/wireguard/conn"
/* Reduce memory consumption for Android */
const (
QueueStagedSize = conn.DefaultBatchSize
QueueStagedSize = conn.IdealBatchSize
QueueOutboundSize = 1024
QueueInboundSize = 1024
QueueHandshakeSize = 1024

2
device/queueconstants_default.go
View File

@ -10,7 +10,7 @@ package device
import "golang.zx2c4.com/wireguard/conn"
const (
QueueStagedSize = conn.DefaultBatchSize
QueueStagedSize = conn.IdealBatchSize
QueueOutboundSize = 1024
QueueInboundSize = 1024
QueueHandshakeSize = 1024

6
tun/tcp_offload_linux.go
View File

@ -72,11 +72,11 @@ type tcpGROTable struct {
func newTCPGROTable() *tcpGROTable {
t := &tcpGROTable{
itemsByFlow: make(map[flowKey][]tcpGROItem, conn.DefaultBatchSize),
itemsPool: make([][]tcpGROItem, conn.DefaultBatchSize),
itemsByFlow: make(map[flowKey][]tcpGROItem, conn.IdealBatchSize),
itemsPool: make([][]tcpGROItem, conn.IdealBatchSize),
}
for i := range t.itemsPool {
t.itemsPool[i] = make([]tcpGROItem, 0, conn.DefaultBatchSize)
t.itemsPool[i] = make([]tcpGROItem, 0, conn.IdealBatchSize)
}
return t
}

4
tun/tcp_offload_linux_test.go
View File

@ -125,8 +125,8 @@ func Test_handleVirtioRead(t *testing.T) {
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
out := make([][]byte, conn.DefaultBatchSize)
sizes := make([]int, conn.DefaultBatchSize)
out := make([][]byte, conn.IdealBatchSize)
sizes := make([]int, conn.IdealBatchSize)
for i := range out {
out[i] = make([]byte, 65535)
}

6
tun/tun_linux.go
View File

@ -524,7 +524,7 @@ func (tun *NativeTun) initFromFlags(name string) error {
return
}
tun.vnetHdr = true
tun.batchSize = conn.DefaultBatchSize
tun.batchSize = conn.IdealBatchSize
} else {
tun.batchSize = 1
}
@ -577,7 +577,7 @@ func CreateTUNFromFile(file *os.File, mtu int) (Device, error) {
statusListenersShutdown: make(chan struct{}),
tcp4GROTable: newTCPGROTable(),
tcp6GROTable: newTCPGROTable(),
toWrite: make([]int, 0, conn.DefaultBatchSize),
toWrite: make([]int, 0, conn.IdealBatchSize),
}
name, err := tun.Name()
@ -633,7 +633,7 @@ func CreateUnmonitoredTUNFromFD(fd int) (Device, string, error) {
errors: make(chan error, 5),
tcp4GROTable: newTCPGROTable(),
tcp6GROTable: newTCPGROTable(),
toWrite: make([]int, 0, conn.DefaultBatchSize),
toWrite: make([]int, 0, conn.IdealBatchSize),
}
name, err := tun.Name()
if err != nil {