From 649bf79117e30895108b7782d62daafd07bc5e6e Mon Sep 17 00:00:00 2001 From: Niall Sheridan Date: Sun, 22 May 2016 01:23:33 +0100 Subject: Use govendor --- vendor/golang.org/x/sys/unix/syscall_unix.go | 297 +++++++++++++++++++++++++++ 1 file changed, 297 insertions(+) create mode 100644 vendor/golang.org/x/sys/unix/syscall_unix.go (limited to 'vendor/golang.org/x/sys/unix/syscall_unix.go') diff --git a/vendor/golang.org/x/sys/unix/syscall_unix.go b/vendor/golang.org/x/sys/unix/syscall_unix.go new file mode 100644 index 0000000..b46b250 --- /dev/null +++ b/vendor/golang.org/x/sys/unix/syscall_unix.go @@ -0,0 +1,297 @@ +// Copyright 2009 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build darwin dragonfly freebsd linux netbsd openbsd solaris + +package unix + +import ( + "runtime" + "sync" + "syscall" + "unsafe" +) + +var ( + Stdin = 0 + Stdout = 1 + Stderr = 2 +) + +const ( + darwin64Bit = runtime.GOOS == "darwin" && sizeofPtr == 8 + dragonfly64Bit = runtime.GOOS == "dragonfly" && sizeofPtr == 8 + netbsd32Bit = runtime.GOOS == "netbsd" && sizeofPtr == 4 +) + +// Do the interface allocations only once for common +// Errno values. +var ( + errEAGAIN error = syscall.EAGAIN + errEINVAL error = syscall.EINVAL + errENOENT error = syscall.ENOENT +) + +// errnoErr returns common boxed Errno values, to prevent +// allocations at runtime. +func errnoErr(e syscall.Errno) error { + switch e { + case 0: + return nil + case EAGAIN: + return errEAGAIN + case EINVAL: + return errEINVAL + case ENOENT: + return errENOENT + } + return e +} + +func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno) +func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno) +func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno) +func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno) + +// Mmap manager, for use by operating system-specific implementations. + +type mmapper struct { + sync.Mutex + active map[*byte][]byte // active mappings; key is last byte in mapping + mmap func(addr, length uintptr, prot, flags, fd int, offset int64) (uintptr, error) + munmap func(addr uintptr, length uintptr) error +} + +func (m *mmapper) Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) { + if length <= 0 { + return nil, EINVAL + } + + // Map the requested memory. + addr, errno := m.mmap(0, uintptr(length), prot, flags, fd, offset) + if errno != nil { + return nil, errno + } + + // Slice memory layout + var sl = struct { + addr uintptr + len int + cap int + }{addr, length, length} + + // Use unsafe to turn sl into a []byte. + b := *(*[]byte)(unsafe.Pointer(&sl)) + + // Register mapping in m and return it. + p := &b[cap(b)-1] + m.Lock() + defer m.Unlock() + m.active[p] = b + return b, nil +} + +func (m *mmapper) Munmap(data []byte) (err error) { + if len(data) == 0 || len(data) != cap(data) { + return EINVAL + } + + // Find the base of the mapping. + p := &data[cap(data)-1] + m.Lock() + defer m.Unlock() + b := m.active[p] + if b == nil || &b[0] != &data[0] { + return EINVAL + } + + // Unmap the memory and update m. + if errno := m.munmap(uintptr(unsafe.Pointer(&b[0])), uintptr(len(b))); errno != nil { + return errno + } + delete(m.active, p) + return nil +} + +func Read(fd int, p []byte) (n int, err error) { + n, err = read(fd, p) + if raceenabled { + if n > 0 { + raceWriteRange(unsafe.Pointer(&p[0]), n) + } + if err == nil { + raceAcquire(unsafe.Pointer(&ioSync)) + } + } + return +} + +func Write(fd int, p []byte) (n int, err error) { + if raceenabled { + raceReleaseMerge(unsafe.Pointer(&ioSync)) + } + n, err = write(fd, p) + if raceenabled && n > 0 { + raceReadRange(unsafe.Pointer(&p[0]), n) + } + return +} + +// For testing: clients can set this flag to force +// creation of IPv6 sockets to return EAFNOSUPPORT. +var SocketDisableIPv6 bool + +type Sockaddr interface { + sockaddr() (ptr unsafe.Pointer, len _Socklen, err error) // lowercase; only we can define Sockaddrs +} + +type SockaddrInet4 struct { + Port int + Addr [4]byte + raw RawSockaddrInet4 +} + +type SockaddrInet6 struct { + Port int + ZoneId uint32 + Addr [16]byte + raw RawSockaddrInet6 +} + +type SockaddrUnix struct { + Name string + raw RawSockaddrUnix +} + +func Bind(fd int, sa Sockaddr) (err error) { + ptr, n, err := sa.sockaddr() + if err != nil { + return err + } + return bind(fd, ptr, n) +} + +func Connect(fd int, sa Sockaddr) (err error) { + ptr, n, err := sa.sockaddr() + if err != nil { + return err + } + return connect(fd, ptr, n) +} + +func Getpeername(fd int) (sa Sockaddr, err error) { + var rsa RawSockaddrAny + var len _Socklen = SizeofSockaddrAny + if err = getpeername(fd, &rsa, &len); err != nil { + return + } + return anyToSockaddr(&rsa) +} + +func GetsockoptInt(fd, level, opt int) (value int, err error) { + var n int32 + vallen := _Socklen(4) + err = getsockopt(fd, level, opt, unsafe.Pointer(&n), &vallen) + return int(n), err +} + +func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, err error) { + var rsa RawSockaddrAny + var len _Socklen = SizeofSockaddrAny + if n, err = recvfrom(fd, p, flags, &rsa, &len); err != nil { + return + } + if rsa.Addr.Family != AF_UNSPEC { + from, err = anyToSockaddr(&rsa) + } + return +} + +func Sendto(fd int, p []byte, flags int, to Sockaddr) (err error) { + ptr, n, err := to.sockaddr() + if err != nil { + return err + } + return sendto(fd, p, flags, ptr, n) +} + +func SetsockoptByte(fd, level, opt int, value byte) (err error) { + return setsockopt(fd, level, opt, unsafe.Pointer(&value), 1) +} + +func SetsockoptInt(fd, level, opt int, value int) (err error) { + var n = int32(value) + return setsockopt(fd, level, opt, unsafe.Pointer(&n), 4) +} + +func SetsockoptInet4Addr(fd, level, opt int, value [4]byte) (err error) { + return setsockopt(fd, level, opt, unsafe.Pointer(&value[0]), 4) +} + +func SetsockoptIPMreq(fd, level, opt int, mreq *IPMreq) (err error) { + return setsockopt(fd, level, opt, unsafe.Pointer(mreq), SizeofIPMreq) +} + +func SetsockoptIPv6Mreq(fd, level, opt int, mreq *IPv6Mreq) (err error) { + return setsockopt(fd, level, opt, unsafe.Pointer(mreq), SizeofIPv6Mreq) +} + +func SetsockoptICMPv6Filter(fd, level, opt int, filter *ICMPv6Filter) error { + return setsockopt(fd, level, opt, unsafe.Pointer(filter), SizeofICMPv6Filter) +} + +func SetsockoptLinger(fd, level, opt int, l *Linger) (err error) { + return setsockopt(fd, level, opt, unsafe.Pointer(l), SizeofLinger) +} + +func SetsockoptString(fd, level, opt int, s string) (err error) { + return setsockopt(fd, level, opt, unsafe.Pointer(&[]byte(s)[0]), uintptr(len(s))) +} + +func SetsockoptTimeval(fd, level, opt int, tv *Timeval) (err error) { + return setsockopt(fd, level, opt, unsafe.Pointer(tv), unsafe.Sizeof(*tv)) +} + +func Socket(domain, typ, proto int) (fd int, err error) { + if domain == AF_INET6 && SocketDisableIPv6 { + return -1, EAFNOSUPPORT + } + fd, err = socket(domain, typ, proto) + return +} + +func Socketpair(domain, typ, proto int) (fd [2]int, err error) { + var fdx [2]int32 + err = socketpair(domain, typ, proto, &fdx) + if err == nil { + fd[0] = int(fdx[0]) + fd[1] = int(fdx[1]) + } + return +} + +func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { + if raceenabled { + raceReleaseMerge(unsafe.Pointer(&ioSync)) + } + return sendfile(outfd, infd, offset, count) +} + +var ioSync int64 + +func CloseOnExec(fd int) { fcntl(fd, F_SETFD, FD_CLOEXEC) } + +func SetNonblock(fd int, nonblocking bool) (err error) { + flag, err := fcntl(fd, F_GETFL, 0) + if err != nil { + return err + } + if nonblocking { + flag |= O_NONBLOCK + } else { + flag &= ^O_NONBLOCK + } + _, err = fcntl(fd, F_SETFL, flag) + return err +} -- cgit v1.2.3