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syscall: unify unix Sendmsg prologues 

These were identical. This is a preliminary step
towards remove allocs per UDP send.

Change-Id: I21e1264c7d4747baa626ddb93afff4c1cf225d13
Reviewed-on: https://go-review.googlesource.com/c/go/+/361256
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Josh Bleecher Snyder 2021-11-02 11:59:56 -07:00
parent 6049630520
commit be0cd9e5ec
5 changed files with 21 additions and 57 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
src/syscall/syscall_aix.go
View File

@ -360,20 +360,7 @@ func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from
return
}
func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) {
_, err = SendmsgN(fd, p, oob, to, flags)
return
}
func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) {
var ptr unsafe.Pointer
var salen _Socklen
if to != nil {
ptr, salen, err = to.sockaddr()
if err != nil {
return 0, err
}
}
func sendmsgN(fd int, p, oob []byte, ptr unsafe.Pointer, salen _Socklen, flags int) (n int, err error) {
var msg Msghdr
msg.Name = (*byte)(unsafe.Pointer(ptr))
msg.Namelen = uint32(salen)

15
src/syscall/syscall_bsd.go
View File

@ -394,20 +394,7 @@ func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from
//sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) {
_, err = SendmsgN(fd, p, oob, to, flags)
return
}
func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) {
var ptr unsafe.Pointer
var salen _Socklen
if to != nil {
ptr, salen, err = to.sockaddr()
if err != nil {
return 0, err
}
}
func sendmsgN(fd int, p, oob []byte, ptr unsafe.Pointer, salen _Socklen, flags int) (n int, err error) {
var msg Msghdr
msg.Name = (*byte)(unsafe.Pointer(ptr))
msg.Namelen = uint32(salen)

16
src/syscall/syscall_linux.go
View File

@ -679,21 +679,7 @@ func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from
return
}
func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) {
_, err = SendmsgN(fd, p, oob, to, flags)
return
}
func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) {
var ptr unsafe.Pointer
var salen _Socklen
if to != nil {
var err error
ptr, salen, err = to.sockaddr()
if err != nil {
return 0, err
}
}
func sendmsgN(fd int, p, oob []byte, ptr unsafe.Pointer, salen _Socklen, flags int) (n int, err error) {
var msg Msghdr
msg.Name = (*byte)(ptr)
msg.Namelen = uint32(salen)

15
src/syscall/syscall_solaris.go
View File

@ -365,22 +365,9 @@ func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from
return
}
func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) {
_, err = SendmsgN(fd, p, oob, to, flags)
return
}
//sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) = libsocket.__xnet_sendmsg
func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) {
var ptr unsafe.Pointer
var salen _Socklen
if to != nil {
ptr, salen, err = to.sockaddr()
if err != nil {
return 0, err
}
}
func sendmsgN(fd int, p, oob []byte, ptr unsafe.Pointer, salen _Socklen, flags int) (n int, err error) {
var msg Msghdr
msg.Name = (*byte)(unsafe.Pointer(ptr))
msg.Namelen = uint32(salen)

17
src/syscall/syscall_unix.go
View File

@ -324,6 +324,23 @@ func recvfromInet6(fd int, p []byte, flags int, from *SockaddrInet6) (n int, err
return
}
func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) {
_, err = SendmsgN(fd, p, oob, to, flags)
return
}
func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) {
var ptr unsafe.Pointer
var salen _Socklen
if to != nil {
ptr, salen, err = to.sockaddr()
if err != nil {
return 0, err
}
}
return sendmsgN(fd, p, oob, ptr, salen, flags)
}
func sendtoInet4(fd int, p []byte, flags int, to SockaddrInet4) (err error) {
ptr, n, err := to.sockaddr()
if err != nil {