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netpoll_windows_go121.go
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netpoll_windows_go121.go
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//go:build windows && !go1.23
package tfo
import (
"syscall"
_ "unsafe"
"golang.org/x/sys/windows"
)
// operation contains superset of data necessary to perform all async IO.
//
// Copied from src/internal/poll/fd_windows.go
type operation struct {
// Used by IOCP interface, it must be first field
// of the struct, as our code rely on it.
o syscall.Overlapped
// fields used by runtime.netpoll
runtimeCtx uintptr
mode int32
errno int32
qty uint32
// fields used only by net package
fd *pFD
buf syscall.WSABuf
msg windows.WSAMsg
sa syscall.Sockaddr
rsa *syscall.RawSockaddrAny
rsan int32
handle syscall.Handle
flags uint32
bufs []syscall.WSABuf
}
//go:linkname execIO internal/poll.execIO
func execIO(o *operation, submit func(o *operation) error) (int, error)
// fileKind describes the kind of file.
// Stay in sync with FD in src/internal/poll/fd_windows.go
type fileKind byte
// Stay in sync with pollDesc in src/internal/poll/fd_poll_runtime.go
type pollDesc struct {
runtimeCtx uintptr
}
func (fd *pFD) Init(net string, pollable bool) (string, error) {
return fdInit(fd, net, pollable)
}
//go:linkname fdInit internal/poll.(*FD).Init
func fdInit(fd *pFD, net string, pollable bool) (string, error)