Initial QSfera import

Server/vendor/github.com/maxymania/go-system/syscall_x/syscalls.go

@@ -0,0 +1,92 @@
+/*
+ * Copyright(C) 2015 Simon Schmidt
+ * 
+ * This Source Code Form is subject to the terms of the
+ * Mozilla Public License, v. 2.0. If a copy of the MPL
+ * was not distributed with this file, You can obtain one at
+ * http://mozilla.org/MPL/2.0/.
+ */
+
+/*
+ This package implements system calls, not implemented by the syscall package.
+ */
+package syscall_x
+
+import "syscall"
+import "unsafe"
+
+func Fgetxattr(fd int, attr string, dest []byte) (sz int, err error) {
+	attr2 , err := syscall.BytePtrFromString(attr)
+	destp := uintptr(0)
+	destl := uintptr(len(dest))
+	if destl>0 { destp = uintptr(unsafe.Pointer(&dest[0])) }
+	if err!=nil { return 0,err }
+	sz_,_,err := syscall.Syscall6(
+			syscall.SYS_FGETXATTR, uintptr(fd),
+			uintptr(unsafe.Pointer(attr2)),
+			destp,
+			destl,
+		0, 0)
+	if err==syscall.Errno(0) { err = nil }
+	return int(sz_),err
+}
+
+func Fsetxattr(fd int, attr string, dest []byte,flags int) error {
+	attr2 , err := syscall.BytePtrFromString(attr)
+	destp := uintptr(0)
+	destl := uintptr(len(dest))
+	if destl>0 { destp = uintptr(unsafe.Pointer(&dest[0])) }
+	if err!=nil { return err }
+	_,_,err = syscall.Syscall6(
+			syscall.SYS_FSETXATTR, uintptr(fd),
+			uintptr(unsafe.Pointer(attr2)),
+			destp,
+			destl,
+		uintptr(flags), 0)
+	if err==syscall.Errno(0) { err = nil }
+	return err
+}
+
+type winsize struct{
+	ws_row 		uint16	/* rows, in characters */
+	ws_col 		uint16	/* columns, in characters */
+	ws_xpixel	uint16	/* horizontal size, pixels */
+	ws_ypixel 	uint16	/* vertical size, pixels */
+}
+
+func clamp16(i int) uint16 {
+	if i<0 { return 0 }
+	if i>=(1<<16) { return ^uint16(0) }
+	return uint16(i)
+}
+
+/*
+ Does (C++):
+
+ winsize ws;
+
+ ws.ws_col = w;
+
+ ws.ws_row = h;
+
+ ws.ws_xpixel = w*5;
+
+ ws.ws_ypixel = h*10;
+
+ ioctl(fd,TIOCSWINSZ,&ws);
+*/
+func Ioctl_resize(fd int,w, h int) {
+	var ws winsize
+	ws.ws_col = clamp16(w)
+	ws.ws_row = clamp16(h)
+	ws.ws_xpixel = clamp16(w*5)
+	ws.ws_ypixel = clamp16(h*10)
+	syscall.Syscall(
+		syscall.SYS_IOCTL,
+		uintptr(fd),
+		syscall.TIOCSWINSZ,
+		uintptr(unsafe.Pointer(&ws)) )
+}
+
+
+