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Merge pull request #10 from pawelgaczynski/feature-double-buffer
Feature double buffer
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,45 +1,81 @@ | ||
| // Copyright (c) 2023 Paweł Gaczyński | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package gain | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "net" | ||
| "syscall" | ||
| "unsafe" | ||
|
|
||
| "github.com/pawelgaczynski/gain/iouring" | ||
| "github.com/pawelgaczynski/gain/pkg/errors" | ||
| "github.com/pawelgaczynski/gain/pkg/socket" | ||
| ) | ||
|
|
||
| type acceptor struct { | ||
| ring *iouring.Ring | ||
| socket int | ||
| clientAddrPointer uintptr | ||
| clientLenPointer uint64 | ||
| connectionPool *connectionPool | ||
| fd int | ||
| clientAddr *syscall.RawSockaddrAny | ||
| clientLenPointer *uint32 | ||
| connectionManager *connectionManager | ||
| } | ||
|
|
||
| func (a *acceptor) addAcceptRequest() (*iouring.SubmissionQueueEntry, error) { | ||
| func (a *acceptor) addAcceptRequest() error { | ||
| entry, err := a.ring.GetSQE() | ||
| if err != nil { | ||
| return nil, err | ||
| return fmt.Errorf("error getting SQE: %w", err) | ||
| } | ||
| entry.PrepareAccept(int(uintptr(a.socket)), a.clientAddrPointer, a.clientLenPointer, 0) | ||
| entry.UserData = acceptDataFlag | uint64(a.socket) | ||
| return entry, err | ||
|
|
||
| entry.PrepareAccept( | ||
| a.fd, uintptr(unsafe.Pointer(a.clientAddr)), uint64(uintptr(unsafe.Pointer(a.clientLenPointer))), 0) | ||
| entry.UserData = acceptDataFlag | uint64(a.fd) | ||
|
|
||
| return nil | ||
| } | ||
|
|
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| func (a *acceptor) addAcceptConnRequest() (*iouring.SubmissionQueueEntry, error) { | ||
| entry, err := a.addAcceptRequest() | ||
| func (a *acceptor) addAcceptConnRequest() error { | ||
| err := a.addAcceptRequest() | ||
| if err != nil { | ||
| return nil, err | ||
| return err | ||
| } | ||
|
|
||
| conn := a.connectionManager.getFd(a.fd) | ||
| if conn == nil { | ||
| return errors.ErrConnectionIsMissing | ||
| } | ||
| conn, err := a.connectionPool.get(a.socket) | ||
| conn.state = connAccept | ||
|
|
||
| return nil | ||
| } | ||
|
|
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| func (a *acceptor) lastClientAddr() (net.Addr, error) { | ||
| addr, err := anyToSockaddr(a.clientAddr) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| conn.state = connAccept | ||
| return entry, nil | ||
|
|
||
| return socket.SockaddrToTCPOrUnixAddr(addr), nil | ||
| } | ||
|
|
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| func newAcceptor(ring *iouring.Ring, connectionPool *connectionPool) *acceptor { | ||
| a := &acceptor{ | ||
| ring: ring, | ||
| connectionPool: connectionPool, | ||
| func newAcceptor(ring *iouring.Ring, connectionManager *connectionManager) *acceptor { | ||
| acceptor := &acceptor{ | ||
| ring: ring, | ||
| connectionManager: connectionManager, | ||
| } | ||
| a.clientAddrPointer, a.clientLenPointer = createClientAddr() | ||
| return a | ||
| acceptor.clientAddr, acceptor.clientLenPointer = createClientAddr() | ||
|
|
||
| return acceptor | ||
| } |
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