Golang syscall.BytePtrFromString函數代碼示例

本文整理匯總了Golang中syscall.BytePtrFromString函數的典型用法代碼示例。如果您正苦於以下問題：Golang BytePtrFromString函數的具體用法？Golang BytePtrFromString怎麽用？Golang BytePtrFromString使用的例子？那麽, 這裏精選的函數代碼示例或許可以為您提供幫助。

在下文中一共展示了BytePtrFromString函數的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。

示例1: getxattr

func getxattr(path string, attr string, dest []byte, pos int, options int) (sz int, err error) {
	var _p0 *byte
	_p0, err = syscall.BytePtrFromString(path)
	if err != nil {
		return
	}
	var _p1 *byte
	_p1, err = syscall.BytePtrFromString(attr)
	if err != nil {
		return
	}
	var _p2 unsafe.Pointer
	if len(dest) > 0 {
		_p2 = unsafe.Pointer(&dest[0])
	} else {
		_p2 = unsafe.Pointer(&_zero)
	}
	r0, _, e1 := syscall.Syscall6(syscall.SYS_GETXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(_p2), uintptr(len(dest)), uintptr(pos), uintptr(options))
	use(unsafe.Pointer(_p0))
	use(unsafe.Pointer(_p1))
	sz = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

開發者ID:tonistiigi，項目名稱:continuity，代碼行數:26，代碼來源:xattr_darwin_amd64.go

示例2: setxattr

func setxattr(path string, attr string, data []byte, flags int) (err error) {
	var _p0 *byte
	_p0, err = syscall.BytePtrFromString(path)
	if err != nil {
		return
	}
	var _p1 *byte
	_p1, err = syscall.BytePtrFromString(attr)
	if err != nil {
		return
	}
	var _p2 unsafe.Pointer
	if len(data) > 0 {
		_p2 = unsafe.Pointer(&data[0])
	} else {
		_p2 = unsafe.Pointer(&_zero)
	}
	_, _, e1 := syscall.Syscall6(syscall.SYS_SETXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(_p2), uintptr(len(data)), uintptr(flags), 0)
	use(unsafe.Pointer(_p0))
	use(unsafe.Pointer(_p1))
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

開發者ID:tonistiigi，項目名稱:continuity，代碼行數:25，代碼來源:xattr_darwin_amd64.go

示例3: LoadBufferX

func (this Lua) LoadBufferX(title string, chank []byte, mode string) error {
	if this == 0 {
		return errors.New("lua.LoadBufferX: this is null.")
	}
	title_ptr, title_err := syscall.BytePtrFromString(title)
	if title_err != nil {
		return title_err
	}
	mode_ptr, mode_err := syscall.BytePtrFromString(mode)
	if mode_err != nil {
		return mode_err
	}

	rc, _, _ := luaL_loadbufferx.Call(
		this.State(),
		uintptr(unsafe.Pointer(&chank[0])),
		uintptr(len(chank)),
		uintptr(unsafe.Pointer(title_ptr)),
		uintptr(unsafe.Pointer(mode_ptr)))
	if rc == 0 {
		return nil
	} else {
		return fmt.Errorf("LUA_ERROR(%d)", rc)
	}
}

開發者ID:tyochiai，項目名稱:nyagos，代碼行數:25，代碼來源:lua.go

示例4: Getxattr

// Darwin doesn't have support for syscall.Getxattr() so we pull it into its own file and implement it by hand on Darwin.
func Getxattr(path string, attr string, dest []byte) (sz int, err error) {
	var _p0 *byte
	_p0, err = syscall.BytePtrFromString(path)
	if err != nil {
		return
	}
	var _p1 *byte
	_p1, err = syscall.BytePtrFromString(attr)
	if err != nil {
		return
	}
	var _p2 unsafe.Pointer
	if len(dest) > 0 {
		_p2 = unsafe.Pointer(&dest[0])
	} else {
		var _zero uintptr
		_p2 = unsafe.Pointer(&_zero)
	}
	r0, _, e1 := syscall.Syscall6(syscall.SYS_GETXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(_p2), uintptr(len(dest)), 0, 0)
	sz = int(r0)
	if e1 != 0 {
		err = e1
	}
	return
}

開發者ID:rfjakob，項目名稱:go-fuse，代碼行數:26，代碼來源:unionfs_xattr_test_darwin.go

示例5: add_key

func add_key(keyType, keyDesc string, payload []byte, id int32) (int32, error) {
	var (
		err    error
		errno  syscall.Errno
		b1, b2 *byte
		r1     uintptr
		pptr   unsafe.Pointer
	)

	if b1, err = syscall.BytePtrFromString(keyType); err != nil {
		return 0, err
	}

	if b2, err = syscall.BytePtrFromString(keyDesc); err != nil {
		return 0, err
	}

	if len(payload) > 0 {
		pptr = unsafe.Pointer(&payload[0])
	}
	r1, _, errno = syscall.Syscall6(syscall_add_key,
		uintptr(unsafe.Pointer(b1)),
		uintptr(unsafe.Pointer(b2)),
		uintptr(pptr),
		uintptr(len(payload)),
		uintptr(id),
		0)

	if errno != 0 {
		err = errno
		return 0, err
	}
	return int32(r1), nil
}

開發者ID:jsipprell，項目名稱:keyctl，代碼行數:34，代碼來源:sys_linux.go

示例6: Lgetxattr

// Lgetxattr retrieves the value of the extended attribute identified by attr
// and associated with the given path in the file system.
// It will returns a nil slice and nil error if the xattr is not set.
func Lgetxattr(path string, attr string) ([]byte, error) {
	pathBytes, err := syscall.BytePtrFromString(path)
	if err != nil {
		return nil, err
	}
	attrBytes, err := syscall.BytePtrFromString(attr)
	if err != nil {
		return nil, err
	}

	dest := make([]byte, 128)
	destBytes := unsafe.Pointer(&dest[0])
	sz, _, errno := syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(destBytes), uintptr(len(dest)), 0, 0)
	if errno == syscall.ENODATA {
		return nil, nil
	}
	if errno == syscall.ERANGE {
		dest = make([]byte, sz)
		destBytes := unsafe.Pointer(&dest[0])
		sz, _, errno = syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(destBytes), uintptr(len(dest)), 0, 0)
	}
	if errno != 0 {
		return nil, errno
	}

	return dest[:sz], nil
}

開發者ID:CNDonny，項目名稱:scope，代碼行數:30，代碼來源:xattrs_linux.go

示例7: getVfsCap

func getVfsCap(path string, dest *vfscapData) (err error) {
	var _p0 *byte
	_p0, err = syscall.BytePtrFromString(path)
	if err != nil {
		return
	}
	r0, _, e1 := syscall.Syscall6(syscall.SYS_GETXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_vfsXattrName)), uintptr(unsafe.Pointer(dest)), vfscapDataSizeV2, 0, 0)
	if e1 != 0 {
		err = e1
	}
	switch dest.magic & vfsCapVerMask {
	case vfsCapVer1:
		dest.version = 1
		if r0 != vfscapDataSizeV1 {
			return syscall.EINVAL
		}
		dest.data[1].permitted = 0
		dest.data[1].inheritable = 0
	case vfsCapVer2:
		dest.version = 2
		if r0 != vfscapDataSizeV2 {
			return syscall.EINVAL
		}
	default:
		return syscall.EINVAL
	}
	if dest.magic&vfsCapFlageffective != 0 {
		dest.effective[0] = dest.data[0].permitted | dest.data[0].inheritable
		dest.effective[1] = dest.data[1].permitted | dest.data[1].inheritable
	} else {
		dest.effective[0] = 0
		dest.effective[1] = 0
	}
	return
}

開發者ID:98pm，項目名稱:docker，代碼行數:35，代碼來源:syscall_linux.go

示例8: GetGlobal

func (this Lua) GetGlobal(str string) {
	cstr, err := syscall.BytePtrFromString(str)
	if err != nil {
		panic(err.Error())
	}
	lua_getglobal.Call(this.State(), uintptr(unsafe.Pointer(cstr)))
}

開發者ID:tyochiai，項目名稱:nyagos，代碼行數:7，代碼來源:lua.go

示例9: GetField

func (this Lua) GetField(index int, str string) {
	cstr, err := syscall.BytePtrFromString(str)
	if err != nil {
		panic(err.Error())
	}
	lua_getfield.Call(this.State(), uintptr(index), uintptr(unsafe.Pointer(cstr)))
}

開發者ID:tyochiai，項目名稱:nyagos，代碼行數:7，代碼來源:lua.go

示例10: PushString

func (this Lua) PushString(str string) {
	cstr, err := syscall.BytePtrFromString(str)
	if err != nil {
		panic(err.Error())
	}
	lua_pushstring.Call(this.State(), uintptr(unsafe.Pointer(cstr)))
}

開發者ID:kissthink，項目名稱:nyagos，代碼行數:7，代碼來源:push.go

示例11: setVfsCap

func setVfsCap(path string, data *vfscapData) (err error) {
	var _p0 *byte
	_p0, err = syscall.BytePtrFromString(path)
	if err != nil {
		return
	}
	var size uintptr
	if data.version == 1 {
		data.magic = vfsCapVer1
		size = vfscapDataSizeV1
	} else if data.version == 2 {
		data.magic = vfsCapVer2
		if data.effective[0] != 0 || data.effective[1] != 0 {
			data.magic |= vfsCapFlageffective
		}
		size = vfscapDataSizeV2
	} else {
		return syscall.EINVAL
	}
	_, _, e1 := syscall.Syscall6(syscall.SYS_SETXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_vfsXattrName)), uintptr(unsafe.Pointer(data)), size, 0, 0)
	if e1 != 0 {
		err = e1
	}
	return
}

開發者ID:jbeda，項目名稱:kubernetes，代碼行數:25，代碼來源:syscall_linux.go

示例12: callPPBGetInterface

func callPPBGetInterface(g ppbGetInterface, name string) unsafe.Pointer {
	p0, err := syscall.BytePtrFromString(name)
	if err != nil {
		panic(err)
	}
	return _callPPBGetInterface(g, p0)
}

開發者ID:payco，項目名稱:llgo，代碼行數:7，代碼來源:ppapi.go

示例13: DeleteBridge

// Delete the actual bridge device.
func DeleteBridge(name string) error {
	s, err := getIfSocket()
	if err != nil {
		return err
	}
	defer syscall.Close(s)

	nameBytePtr, err := syscall.BytePtrFromString(name)
	if err != nil {
		return err
	}

	var ifr ifreqFlags
	copy(ifr.IfrnName[:len(ifr.IfrnName)-1], []byte(name))
	if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, uintptr(s),
		syscall.SIOCSIFFLAGS, uintptr(unsafe.Pointer(&ifr))); err != 0 {
		return err
	}

	if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, uintptr(s),
		SIOC_BRDELBR, uintptr(unsafe.Pointer(nameBytePtr))); err != 0 {
		return err
	}
	return nil
}

開發者ID:JianfuLi，項目名稱:docker，代碼行數:26，代碼來源:netlink_linux.go

示例14: searchKeyring

func searchKeyring(id keyId, name, keyType string) (keyId, error) {
	var (
		r1     int32
		b1, b2 *byte
		err    error
	)

	if b1, err = syscall.BytePtrFromString(keyType); err != nil {
		return 0, err
	}
	if b2, err = syscall.BytePtrFromString(name); err != nil {
		return 0, err
	}

	r1, _, err = keyctl(keyctlSearch, uintptr(id), uintptr(unsafe.Pointer(b1)), uintptr(unsafe.Pointer(b2)))
	return keyId(r1), err
}

開發者ID:jsipprell，項目名稱:keyctl，代碼行數:17，代碼來源:sys_linux.go

示例15: removexattr

func removexattr(path string, attr string, options int) (err error) {
	var _p0 *byte
	_p0, err = syscall.BytePtrFromString(path)
	if err != nil {
		return
	}
	var _p1 *byte
	_p1, err = syscall.BytePtrFromString(attr)
	if err != nil {
		return
	}
	_, _, e1 := syscall.Syscall(syscall.SYS_REMOVEXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(options))
	if e1 != 0 {
		err = e1
	}
	return
}

開發者ID:andradeandrey，項目名稱:go-ipfs，代碼行數:17，代碼來源:xattr_darwin_amd64.go

注：本文中的syscall.BytePtrFromString函數示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。