Upgrade go version to 1.18 (#5045)
* Upgrade go version to 1.18 * fix go 1.18 compatibility * update gofmt * ignore golangci-lint staticcheck * update gofmt
This commit is contained in:
hongming
197
vendor/golang.org/x/sys/unix/syscall_unix.go
generated
vendored
197
vendor/golang.org/x/sys/unix/syscall_unix.go
generated
vendored
@@ -2,6 +2,7 @@
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris
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// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
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package unix
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@@ -12,6 +13,8 @@ import (
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"sync"
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"syscall"
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"unsafe"
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"golang.org/x/sys/internal/unsafeheader"
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)
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var (
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@@ -28,6 +31,11 @@ var (
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errENOENT error = syscall.ENOENT
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)
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var (
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signalNameMapOnce sync.Once
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signalNameMap map[string]syscall.Signal
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)
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// errnoErr returns common boxed Errno values, to prevent
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// allocations at runtime.
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func errnoErr(e syscall.Errno) error {
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@@ -66,6 +74,19 @@ func SignalName(s syscall.Signal) string {
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return ""
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}
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// SignalNum returns the syscall.Signal for signal named s,
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// or 0 if a signal with such name is not found.
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// The signal name should start with "SIG".
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func SignalNum(s string) syscall.Signal {
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signalNameMapOnce.Do(func() {
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signalNameMap = make(map[string]syscall.Signal, len(signalList))
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for _, signal := range signalList {
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signalNameMap[signal.name] = signal.num
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}
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})
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return signalNameMap[s]
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}
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// clen returns the index of the first NULL byte in n or len(n) if n contains no NULL byte.
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func clen(n []byte) int {
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i := bytes.IndexByte(n, 0)
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@@ -95,15 +116,12 @@ func (m *mmapper) Mmap(fd int, offset int64, length int, prot int, flags int) (d
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return nil, errno
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}
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// Slice memory layout
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var sl = struct {
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addr uintptr
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len int
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cap int
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}{addr, length, length}
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// Use unsafe to turn sl into a []byte.
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b := *(*[]byte)(unsafe.Pointer(&sl))
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// Use unsafe to convert addr into a []byte.
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var b []byte
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hdr := (*unsafeheader.Slice)(unsafe.Pointer(&b))
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hdr.Data = unsafe.Pointer(addr)
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hdr.Cap = length
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hdr.Len = length
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// Register mapping in m and return it.
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p := &b[cap(b)-1]
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@@ -159,6 +177,30 @@ func Write(fd int, p []byte) (n int, err error) {
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return
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}
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func Pread(fd int, p []byte, offset int64) (n int, err error) {
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n, err = pread(fd, p, offset)
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if raceenabled {
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if n > 0 {
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raceWriteRange(unsafe.Pointer(&p[0]), n)
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}
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if err == nil {
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raceAcquire(unsafe.Pointer(&ioSync))
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}
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}
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return
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}
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func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
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if raceenabled {
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raceReleaseMerge(unsafe.Pointer(&ioSync))
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}
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n, err = pwrite(fd, p, offset)
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if raceenabled && n > 0 {
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raceReadRange(unsafe.Pointer(&p[0]), n)
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}
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return
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}
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// For testing: clients can set this flag to force
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// creation of IPv6 sockets to return EAFNOSUPPORT.
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var SocketDisableIPv6 bool
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@@ -276,6 +318,13 @@ func GetsockoptTimeval(fd, level, opt int) (*Timeval, error) {
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return &tv, err
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}
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func GetsockoptUint64(fd, level, opt int) (value uint64, err error) {
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var n uint64
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vallen := _Socklen(8)
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err = getsockopt(fd, level, opt, unsafe.Pointer(&n), &vallen)
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return n, err
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}
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func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, err error) {
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var rsa RawSockaddrAny
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var len _Socklen = SizeofSockaddrAny
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@@ -288,6 +337,97 @@ func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, err error) {
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return
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}
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func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, err error) {
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var iov [1]Iovec
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if len(p) > 0 {
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iov[0].Base = &p[0]
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iov[0].SetLen(len(p))
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}
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var rsa RawSockaddrAny
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n, oobn, recvflags, err = recvmsgRaw(fd, iov[:], oob, flags, &rsa)
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// source address is only specified if the socket is unconnected
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if rsa.Addr.Family != AF_UNSPEC {
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from, err = anyToSockaddr(fd, &rsa)
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}
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return
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}
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// RecvmsgBuffers receives a message from a socket using the recvmsg
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// system call. The flags are passed to recvmsg. Any non-control data
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// read is scattered into the buffers slices. The results are:
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// - n is the number of non-control data read into bufs
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// - oobn is the number of control data read into oob; this may be interpreted using [ParseSocketControlMessage]
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// - recvflags is flags returned by recvmsg
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// - from is the address of the sender
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func RecvmsgBuffers(fd int, buffers [][]byte, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, err error) {
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iov := make([]Iovec, len(buffers))
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for i := range buffers {
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if len(buffers[i]) > 0 {
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iov[i].Base = &buffers[i][0]
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iov[i].SetLen(len(buffers[i]))
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} else {
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iov[i].Base = (*byte)(unsafe.Pointer(&_zero))
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}
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}
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var rsa RawSockaddrAny
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n, oobn, recvflags, err = recvmsgRaw(fd, iov, oob, flags, &rsa)
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if err == nil && rsa.Addr.Family != AF_UNSPEC {
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from, err = anyToSockaddr(fd, &rsa)
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}
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return
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}
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func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) {
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_, err = SendmsgN(fd, p, oob, to, flags)
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return
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}
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func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) {
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var iov [1]Iovec
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if len(p) > 0 {
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iov[0].Base = &p[0]
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iov[0].SetLen(len(p))
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}
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var ptr unsafe.Pointer
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var salen _Socklen
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if to != nil {
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ptr, salen, err = to.sockaddr()
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if err != nil {
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return 0, err
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}
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}
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return sendmsgN(fd, iov[:], oob, ptr, salen, flags)
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}
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// SendmsgBuffers sends a message on a socket to an address using the sendmsg
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// system call. The flags are passed to sendmsg. Any non-control data written
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// is gathered from buffers. The function returns the number of bytes written
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// to the socket.
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func SendmsgBuffers(fd int, buffers [][]byte, oob []byte, to Sockaddr, flags int) (n int, err error) {
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iov := make([]Iovec, len(buffers))
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for i := range buffers {
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if len(buffers[i]) > 0 {
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iov[i].Base = &buffers[i][0]
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iov[i].SetLen(len(buffers[i]))
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} else {
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iov[i].Base = (*byte)(unsafe.Pointer(&_zero))
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}
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}
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var ptr unsafe.Pointer
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var salen _Socklen
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if to != nil {
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ptr, salen, err = to.sockaddr()
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if err != nil {
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return 0, err
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}
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}
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return sendmsgN(fd, iov, oob, ptr, salen, flags)
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}
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func Send(s int, buf []byte, flags int) (err error) {
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return sendto(s, buf, flags, nil, 0)
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}
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func Sendto(fd int, p []byte, flags int, to Sockaddr) (err error) {
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ptr, n, err := to.sockaddr()
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if err != nil {
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@@ -326,13 +466,21 @@ func SetsockoptLinger(fd, level, opt int, l *Linger) (err error) {
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}
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func SetsockoptString(fd, level, opt int, s string) (err error) {
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return setsockopt(fd, level, opt, unsafe.Pointer(&[]byte(s)[0]), uintptr(len(s)))
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var p unsafe.Pointer
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if len(s) > 0 {
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p = unsafe.Pointer(&[]byte(s)[0])
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}
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return setsockopt(fd, level, opt, p, uintptr(len(s)))
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}
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func SetsockoptTimeval(fd, level, opt int, tv *Timeval) (err error) {
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return setsockopt(fd, level, opt, unsafe.Pointer(tv), unsafe.Sizeof(*tv))
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}
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func SetsockoptUint64(fd, level, opt int, value uint64) (err error) {
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return setsockopt(fd, level, opt, unsafe.Pointer(&value), 8)
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}
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func Socket(domain, typ, proto int) (fd int, err error) {
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if domain == AF_INET6 && SocketDisableIPv6 {
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return -1, EAFNOSUPPORT
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@@ -377,3 +525,32 @@ func SetNonblock(fd int, nonblocking bool) (err error) {
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func Exec(argv0 string, argv []string, envv []string) error {
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return syscall.Exec(argv0, argv, envv)
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}
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// Lutimes sets the access and modification times tv on path. If path refers to
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// a symlink, it is not dereferenced and the timestamps are set on the symlink.
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// If tv is nil, the access and modification times are set to the current time.
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// Otherwise tv must contain exactly 2 elements, with access time as the first
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// element and modification time as the second element.
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func Lutimes(path string, tv []Timeval) error {
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if tv == nil {
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return UtimesNanoAt(AT_FDCWD, path, nil, AT_SYMLINK_NOFOLLOW)
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}
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if len(tv) != 2 {
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return EINVAL
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}
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ts := []Timespec{
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NsecToTimespec(TimevalToNsec(tv[0])),
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NsecToTimespec(TimevalToNsec(tv[1])),
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}
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return UtimesNanoAt(AT_FDCWD, path, ts, AT_SYMLINK_NOFOLLOW)
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}
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// emptyIovec reports whether there are no bytes in the slice of Iovec.
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func emptyIovecs(iov []Iovec) bool {
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for i := range iov {
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if iov[i].Len > 0 {
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return false
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}
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}
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return true
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}
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