a geicko-2 based round robin ranking system designed to test c++ battleship submissions battleship.dunkirk.sh
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1// Copyright 2020 The Go Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style 3// license that can be found in the LICENSE file. 4 5//go:build zos && s390x 6 7package unix 8 9import ( 10 "runtime" 11 "unsafe" 12) 13 14// ioctl itself should not be exposed directly, but additional get/set 15// functions for specific types are permissible. 16 17// IoctlSetInt performs an ioctl operation which sets an integer value 18// on fd, using the specified request number. 19func IoctlSetInt(fd int, req int, value int) error { 20 return ioctl(fd, req, uintptr(value)) 21} 22 23// IoctlSetWinsize performs an ioctl on fd with a *Winsize argument. 24// 25// To change fd's window size, the req argument should be TIOCSWINSZ. 26func IoctlSetWinsize(fd int, req int, value *Winsize) error { 27 // TODO: if we get the chance, remove the req parameter and 28 // hardcode TIOCSWINSZ. 29 return ioctlPtr(fd, req, unsafe.Pointer(value)) 30} 31 32// IoctlSetTermios performs an ioctl on fd with a *Termios. 33// 34// The req value is expected to be TCSETS, TCSETSW, or TCSETSF 35func IoctlSetTermios(fd int, req int, value *Termios) error { 36 if (req != TCSETS) && (req != TCSETSW) && (req != TCSETSF) { 37 return ENOSYS 38 } 39 err := Tcsetattr(fd, int(req), value) 40 runtime.KeepAlive(value) 41 return err 42} 43 44// IoctlGetInt performs an ioctl operation which gets an integer value 45// from fd, using the specified request number. 46// 47// A few ioctl requests use the return value as an output parameter; 48// for those, IoctlRetInt should be used instead of this function. 49func IoctlGetInt(fd int, req int) (int, error) { 50 var value int 51 err := ioctlPtr(fd, req, unsafe.Pointer(&value)) 52 return value, err 53} 54 55func IoctlGetWinsize(fd int, req int) (*Winsize, error) { 56 var value Winsize 57 err := ioctlPtr(fd, req, unsafe.Pointer(&value)) 58 return &value, err 59} 60 61// IoctlGetTermios performs an ioctl on fd with a *Termios. 62// 63// The req value is expected to be TCGETS 64func IoctlGetTermios(fd int, req int) (*Termios, error) { 65 var value Termios 66 if req != TCGETS { 67 return &value, ENOSYS 68 } 69 err := Tcgetattr(fd, &value) 70 return &value, err 71}