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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socktest
import "syscall"
// Socket wraps syscall.Socket.
func (sw *Switch) Socket(family, sotype, proto int) (s syscall.Handle, err error) {
sw.once.Do(sw.init)
so := &Status{Cookie: cookie(family, sotype, proto)}
sw.fmu.RLock()
f, _ := sw.fltab[FilterSocket]
sw.fmu.RUnlock()
af, err := f.apply(so)
if err != nil {
return syscall.InvalidHandle, err
}
s, so.Err = syscall.Socket(family, sotype, proto)
if err = af.apply(so); err != nil {
if so.Err == nil {
syscall.Closesocket(s)
}
return syscall.InvalidHandle, err
}
sw.smu.Lock()
defer sw.smu.Unlock()
if so.Err != nil {
sw.stats.getLocked(so.Cookie).OpenFailed++
return syscall.InvalidHandle, so.Err
}
nso := sw.addLocked(s, family, sotype, proto)
sw.stats.getLocked(nso.Cookie).Opened++
return s, nil
}
// Closesocket wraps syscall.Closesocket.
func (sw *Switch) Closesocket(s syscall.Handle) (err error) {
so := sw.sockso(s)
if so == nil {
return syscall.Closesocket(s)
}
sw.fmu.RLock()
f, _ := sw.fltab[FilterClose]
sw.fmu.RUnlock()
af, err := f.apply(so)
if err != nil {
return err
}
so.Err = syscall.Closesocket(s)
if err = af.apply(so); err != nil {
return err
}
sw.smu.Lock()
defer sw.smu.Unlock()
if so.Err != nil {
sw.stats.getLocked(so.Cookie).CloseFailed++
return so.Err
}
delete(sw.sotab, s)
sw.stats.getLocked(so.Cookie).Closed++
return nil
}
// Connect wraps syscall.Connect.
func (sw *Switch) Connect(s syscall.Handle, sa syscall.Sockaddr) (err error) {
so := sw.sockso(s)
if so == nil {
return syscall.Connect(s, sa)
}
sw.fmu.RLock()
f, _ := sw.fltab[FilterConnect]
sw.fmu.RUnlock()
af, err := f.apply(so)
if err != nil {
return err
}
so.Err = syscall.Connect(s, sa)
if err = af.apply(so); err != nil {
return err
}
sw.smu.Lock()
defer sw.smu.Unlock()
if so.Err != nil {
sw.stats.getLocked(so.Cookie).ConnectFailed++
return so.Err
}
sw.stats.getLocked(so.Cookie).Connected++
return nil
}
// ConnectEx wraps syscall.ConnectEx.
func (sw *Switch) ConnectEx(s syscall.Handle, sa syscall.Sockaddr, b *byte, n uint32, nwr *uint32, o *syscall.Overlapped) (err error) {
so := sw.sockso(s)
if so == nil {
return syscall.ConnectEx(s, sa, b, n, nwr, o)
}
sw.fmu.RLock()
f, _ := sw.fltab[FilterConnect]
sw.fmu.RUnlock()
af, err := f.apply(so)
if err != nil {
return err
}
so.Err = syscall.ConnectEx(s, sa, b, n, nwr, o)
if err = af.apply(so); err != nil {
return err
}
sw.smu.Lock()
defer sw.smu.Unlock()
if so.Err != nil {
sw.stats.getLocked(so.Cookie).ConnectFailed++
return so.Err
}
sw.stats.getLocked(so.Cookie).Connected++
return nil
}
// Listen wraps syscall.Listen.
func (sw *Switch) Listen(s syscall.Handle, backlog int) (err error) {
so := sw.sockso(s)
if so == nil {
return syscall.Listen(s, backlog)
}
sw.fmu.RLock()
f, _ := sw.fltab[FilterListen]
sw.fmu.RUnlock()
af, err := f.apply(so)
if err != nil {
return err
}
so.Err = syscall.Listen(s, backlog)
if err = af.apply(so); err != nil {
return err
}
sw.smu.Lock()
defer sw.smu.Unlock()
if so.Err != nil {
sw.stats.getLocked(so.Cookie).ListenFailed++
return so.Err
}
sw.stats.getLocked(so.Cookie).Listened++
return nil
}
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