Golang bitseq.Handle类代码示例

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本文整理汇总了Golang中github.com/docker/libnetwork/bitseq.Handle类的典型用法代码示例。如果您正苦于以下问题：Golang Handle类的具体用法？Golang Handle怎么用？Golang Handle使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

在下文中一共展示了Handle类的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: getAddress

func (a *Allocator) getAddress(nw *net.IPNet, bitmask *bitseq.Handle, prefAddress net.IP, ipr *AddressRange) (net.IP, error) {
	var (
		ordinal uint64
		err     error
		base    *net.IPNet
	)

	base = types.GetIPNetCopy(nw)

	if bitmask.Unselected() <= 0 {
		return nil, ipamapi.ErrNoAvailableIPs
	}
	if ipr == nil && prefAddress == nil {
		ordinal, err = bitmask.SetAny()
	} else if prefAddress != nil {
		hostPart, e := types.GetHostPartIP(prefAddress, base.Mask)
		if e != nil {
			return nil, fmt.Errorf("failed to allocate preferred address %s: %v", prefAddress.String(), e)
		}
		ordinal = ipToUint64(types.GetMinimalIP(hostPart))
		err = bitmask.Set(ordinal)
	} else {
		base.IP = ipr.Sub.IP
		ordinal, err = bitmask.SetAnyInRange(ipr.Start, ipr.End)
	}
	if err != nil {
		return nil, ipamapi.ErrNoAvailableIPs
	}

	// Convert IP ordinal for this subnet into IP address
	return generateAddress(ordinal, base), nil
}

开发者ID:newdeamon，项目名称:docker，代码行数:32，代码来源:allocator.go

示例2: Release

// Release allows releasing the address from the specified address space
func (a *Allocator) Release(addrSpace AddressSpace, address net.IP) {
	var (
		space *bitseq.Handle
		sub   *net.IPNet
	)

	if address == nil {
		log.Debugf("Requested to remove nil address from address space %s", addrSpace)
		return
	}

	ver := getAddressVersion(address)
	if ver == v4 {
		address = address.To4()
	}

	// Find the subnet containing the address
	for _, subKey := range a.getSubnetList(addrSpace, ver) {
		sub = subKey.canonicalChildSubnet()
		if sub.Contains(address) {
			a.Lock()
			space = a.addresses[subKey]
			a.Unlock()
			break
		}
	}
	if space == nil {
		log.Debugf("Could not find subnet on address space %s containing %s on release", addrSpace, address.String())
		return
	}

	// Retrieve correspondent ordinal in the subnet
	hostPart, err := types.GetHostPartIP(address, sub.Mask)
	if err != nil {
		log.Warnf("Failed to release address %s on address space %s because of internal error: %v", address.String(), addrSpace, err)
		return
	}
	ordinal := ipToUint32(hostPart)

	// Release it
	if err := space.Unset(ordinal); err != nil {
		log.Warnf("Failed to release address %s on address space %s because of internal error: %v", address.String(), addrSpace, err)
	}
}

开发者ID:nkwilson，项目名称:libnetwork，代码行数:45，代码来源:allocator.go

示例3: getAddress

func (a *Allocator) getAddress(subnet *net.IPNet, bitmask *bitseq.Handle, prefAddress net.IP, ver ipVersion) (net.IP, error) {
	var (
		ordinal uint32
		err     error
	)

	if bitmask.Unselected() <= 0 {
		return nil, ErrNoAvailableIPs
	}
	if prefAddress == nil {
		ordinal, err = bitmask.SetAny()
	} else {
		hostPart, e := types.GetHostPartIP(prefAddress, subnet.Mask)
		if e != nil {
			return nil, fmt.Errorf("failed to allocate preferred address %s: %v", prefAddress.String(), e)
		}
		ordinal = ipToUint32(types.GetMinimalIP(hostPart))
		err = bitmask.Set(ordinal)
	}
	if err != nil {
		return nil, ErrNoAvailableIPs
	}

	// Convert IP ordinal for this subnet into IP address
	return generateAddress(ordinal, subnet), nil
}

开发者ID:nkwilson，项目名称:libnetwork，代码行数:26，代码来源:allocator.go

示例4: getAddress

func (a *Allocator) getAddress(subnet *net.IPNet, bitmask *bitseq.Handle, prefAddress net.IP, ver ipVersion) (net.IP, error) {
	var (
		bytePos, bitPos int
		ordinal         int
		err             error
	)

	// Look for free IP, skip .0 and .255, they will be automatically reserved
	for {
		if bitmask.Unselected() <= 0 {
			return nil, ErrNoAvailableIPs
		}
		if prefAddress == nil {
			bytePos, bitPos, err = bitmask.GetFirstAvailable()
		} else {
			ordinal = ipToInt(getHostPortionIP(prefAddress, subnet))
			bytePos, bitPos, err = bitmask.CheckIfAvailable(ordinal)
		}
		if err != nil {
			return nil, ErrNoAvailableIPs
		}

		// Lock it
		if err = bitmask.PushReservation(bytePos, bitPos, false); err != nil {
			if _, ok := err.(types.RetryError); !ok {
				return nil, fmt.Errorf("internal failure while reserving the address: %s", err.Error())
			}
			continue
		}

		// Build IP ordinal
		ordinal = bitPos + bytePos*8

		// For v4, let reservation of .0 and .255 happen automatically
		if ver == v4 && !isValidIP(ordinal) {
			continue
		}
		break
	}

	// Convert IP ordinal for this subnet into IP address
	return generateAddress(ordinal, subnet), nil
}

开发者ID:hariharan16s，项目名称:libnetwork，代码行数:43，代码来源:allocator.go

示例5: getAddress

func (a *Allocator) getAddress(nw *net.IPNet, bitmask *bitseq.Handle, prefAddress net.IP, ipr *AddressRange) (net.IP, error) {
	var (
		ordinal uint64
		err     error
		base    *net.IPNet
	)

	base = types.GetIPNetCopy(nw)

	if bitmask.Unselected() <= 0 {
		return nil, ipamapi.ErrNoAvailableIPs
	}
	if ipr == nil && prefAddress == nil {
		ordinal, err = bitmask.SetAny()
	} else if prefAddress != nil {
		hostPart, e := types.GetHostPartIP(prefAddress, base.Mask)
		if e != nil {
			return nil, types.InternalErrorf("failed to allocate requested address %s: %v", prefAddress.String(), e)
		}
		ordinal = ipToUint64(types.GetMinimalIP(hostPart))
		err = bitmask.Set(ordinal)
	} else {
		ordinal, err = bitmask.SetAnyInRange(ipr.Start, ipr.End)
	}

	switch err {
	case nil:
		// Convert IP ordinal for this subnet into IP address
		return generateAddress(ordinal, base), nil
	case bitseq.ErrBitAllocated:
		return nil, ipamapi.ErrIPAlreadyAllocated
	case bitseq.ErrNoBitAvailable:
		return nil, ipamapi.ErrNoAvailableIPs
	default:
		return nil, err
	}
}

开发者ID:docker，项目名称:docker，代码行数:37，代码来源:allocator.go

注：本文中的github.com/docker/libnetwork/bitseq.Handle类示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。