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Remove linkname usages of x/sys/windows

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wwqgtxx 2024-05-18 20:51:36 +08:00 • committed by GitHub
parent e0ee7f49e2
commit f67a0988a6
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1 changed files with 26 additions and 4 deletions
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30
common/bufio/copy_direct_windows.go
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@ -15,13 +15,35 @@ import (
"golang.org/x/sys/windows" "golang.org/x/sys/windows"
) )
//go:linkname modws2_32 golang.org/x/sys/windows.modws2_32 var modws2_32 = windows.NewLazySystemDLL("ws2_32.dll")
var modws2_32 *windows.LazyDLL
var procrecv = modws2_32.NewProc("recv") var procrecv = modws2_32.NewProc("recv")
//go:linkname errnoErr golang.org/x/sys/windows.errnoErr // Do the interface allocations only once for common
func errnoErr(e syscall.Errno) error // Errno values.
const (
errnoERROR_IO_PENDING = 997
)
var (
errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
errERROR_EINVAL error = syscall.EINVAL
)
// errnoErr returns common boxed Errno values, to prevent
// allocations at runtime.
func errnoErr(e syscall.Errno) error {
switch e {
case 0:
return errERROR_EINVAL
case errnoERROR_IO_PENDING:
return errERROR_IO_PENDING
}
// TODO: add more here, after collecting data on the common
// error values see on Windows. (perhaps when running
// all.bat?)
return e
}
func recv(s windows.Handle, buf []byte, flags int32) (n int32, err error) { func recv(s windows.Handle, buf []byte, flags int32) (n int32, err error) {
var _p0 *byte var _p0 *byte