diff options
| author | Josh Bleecher Snyder <josharian@gmail.com> | 2021-06-28 15:41:20 -0700 |
|---|---|---|
| committer | Damien Neil <dneil@google.com> | 2021-08-16 23:57:10 +0000 |
| commit | 2a193337164c8af8cba3d5c4ec0f36413c528bd8 (patch) | |
| tree | dc0cecef55b16e3c21b91f6e707941d83813162d /src/syscall | |
| parent | 9c5eb16f6cba2b3d75f440dfec157183cc6d0f35 (diff) | |
| download | go-2a193337164c8af8cba3d5c4ec0f36413c528bd8.tar.xz | |
net: reduce allocations for UDP send/recv on Windows
This brings the optimizations added in CLs 331489 and 331490 to Windows.
Updates #43451
Change-Id: I75cf520050325d9eb5c2785d6d8677cc864fcac8
Reviewed-on: https://go-review.googlesource.com/c/go/+/331511
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
Diffstat (limited to 'src/syscall')
| -rw-r--r-- | src/syscall/syscall_windows.go | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/syscall/syscall_windows.go b/src/syscall/syscall_windows.go index 660179ae9e..d4e51e541d 100644 --- a/src/syscall/syscall_windows.go +++ b/src/syscall/syscall_windows.go @@ -924,6 +924,38 @@ func WSASendto(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32 return err } +func WSASendtoInet4(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, to SockaddrInet4, overlapped *Overlapped, croutine *byte) (err error) { + rsa, len, err := to.sockaddr() + if err != nil { + return err + } + r1, _, e1 := Syscall9(procWSASendTo.Addr(), 9, uintptr(s), uintptr(unsafe.Pointer(bufs)), uintptr(bufcnt), uintptr(unsafe.Pointer(sent)), uintptr(flags), uintptr(unsafe.Pointer(rsa)), uintptr(len), uintptr(unsafe.Pointer(overlapped)), uintptr(unsafe.Pointer(croutine))) + if r1 == socket_error { + if e1 != 0 { + err = errnoErr(e1) + } else { + err = EINVAL + } + } + return err +} + +func WSASendtoInet6(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, to SockaddrInet6, overlapped *Overlapped, croutine *byte) (err error) { + rsa, len, err := to.sockaddr() + if err != nil { + return err + } + r1, _, e1 := Syscall9(procWSASendTo.Addr(), 9, uintptr(s), uintptr(unsafe.Pointer(bufs)), uintptr(bufcnt), uintptr(unsafe.Pointer(sent)), uintptr(flags), uintptr(unsafe.Pointer(rsa)), uintptr(len), uintptr(unsafe.Pointer(overlapped)), uintptr(unsafe.Pointer(croutine))) + if r1 == socket_error { + if e1 != 0 { + err = errnoErr(e1) + } else { + err = EINVAL + } + } + return err +} + func LoadGetAddrInfo() error { return procGetAddrInfoW.Find() } |