util

package
Version: v1.0.3 Latest Latest
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Published: Jul 6, 2017 License: Apache-2.0 Imports: 13 Imported by: 0

Documentation

Overview

Package util is a generated protocol buffer package.

It is generated from these files:

cockroach/pkg/util/unresolved_addr.proto

It has these top-level messages:

UnresolvedAddr

Index

Constants

This section is empty.

Variables

View Source
var (
	ErrInvalidLengthUnresolvedAddr = fmt.Errorf("proto: negative length found during unmarshaling")
	ErrIntOverflowUnresolvedAddr   = fmt.Errorf("proto: integer overflow")
)
View Source
var TestAddr = NewUnresolvedAddr("tcp", "127.0.0.1:0")

TestAddr is an address to use for test servers. Listening on port 0 causes the kernel to allocate an unused port.

Functions

func EqualPtrFields

func EqualPtrFields(src, dst reflect.Value, prefix string) []string

EqualPtrFields uses reflection to check two "mirror" structures for matching pointer fields that point to the same object. Used to verify cloning/deep copy functions.

func GetSmallTrace

func GetSmallTrace(skip int) string

GetSmallTrace produces a ":"-separated single line containing the topmost 5 callers from a given skip level.

func MoveTopKToFront

func MoveTopKToFront(data sort.Interface, k int)

MoveTopKToFront moves the top K elements to the front. It makes O(n) calls to data.Less and data.Swap (with very high probability). It uses Hoare's selection algorithm (aka quickselect).

func Pluralize

func Pluralize(n int64) string

Pluralize returns a single character 's' unless n == 1.

func RetryForDuration

func RetryForDuration(duration time.Duration, fn func() error) error

RetryForDuration will retry the given function until it either returns without error, or the given duration has elapsed. The function is invoked immediately at first and then successively with an exponential backoff starting at 1ns and ending at the specified duration.

func RoundUpPowerOfTwo

func RoundUpPowerOfTwo(x int64) int64

RoundUpPowerOfTwo returns the first power of 2 greater or equal to the number. Source: http://graphics.stanford.edu/%7Eseander/bithacks.html#RoundUpPowerOf2

func TruncateDuration

func TruncateDuration(d time.Duration, r time.Duration) time.Duration

TruncateDuration returns a new duration obtained from the first argument by discarding the portions at finer resolution than that given by the second argument. Example: TruncateDuration(time.Second+1, time.Second) == time.Second.

func UnimplementedWithIssueErrorf

func UnimplementedWithIssueErrorf(issue int, msg string, args ...interface{}) error

UnimplementedWithIssueErrorf constructs an UnimplementedWithIssueError with the provided issue and formatted message.

Types

type NoCopy

type NoCopy struct{}

NoCopy may be embedded into structs which must not be copied after the first use.

See https://github.com/golang/go/issues/8005#issuecomment-190753527 for details.

func (*NoCopy) Lock

func (*NoCopy) Lock()

Lock is a no-op used by -copylocks checker from `go vet`.

type UnimplementedWithIssueError

type UnimplementedWithIssueError struct {
	// contains filtered or unexported fields
}

UnimplementedWithIssueError is an error that links unimplemented functionality back to its issue on GitHub.

func (UnimplementedWithIssueError) Error

type UnresolvedAddr

type UnresolvedAddr struct {
	NetworkField string `protobuf:"bytes,1,opt,name=network_field,json=networkField" json:"network_field"`
	AddressField string `protobuf:"bytes,2,opt,name=address_field,json=addressField" json:"address_field"`
}

/ UnresolvedAddr is an unresolved version of net.Addr.

var IsolatedTestAddr *UnresolvedAddr

IsolatedTestAddr is an address to use for tests that need extra isolation by using more addresses than 127.0.0.1 (support for this is platform-specific and only enabled on Linux). Both TestAddr and IsolatedTestAddr guarantee that the chosen port is not in use when allocated, but IsolatedTestAddr draws from a larger pool of addresses so that when tests are run in a tight loop the system is less likely to run out of available ports or give a port to one test immediately after it was closed by another.

IsolatedTestAddr should be used for tests that open and close a large number of sockets, or tests which stop a server and rely on seeing a "connection refused" error afterwards. It cannot be used with tests that operate in secure mode since our test certificates are only valid for 127.0.0.1.

func MakeUnresolvedAddr

func MakeUnresolvedAddr(network, addr string) UnresolvedAddr

MakeUnresolvedAddr populates an UnresolvedAddr from a network and raw address string.

func NewUnresolvedAddr

func NewUnresolvedAddr(network, addr string) *UnresolvedAddr

NewUnresolvedAddr creates a new UnresolvedAddr from a network and raw address string.

func (*UnresolvedAddr) Descriptor

func (*UnresolvedAddr) Descriptor() ([]byte, []int)

func (UnresolvedAddr) IsEmpty

func (a UnresolvedAddr) IsEmpty() bool

IsEmpty returns true if the address has no network or address specified.

func (*UnresolvedAddr) Marshal

func (m *UnresolvedAddr) Marshal() (dAtA []byte, err error)

func (*UnresolvedAddr) MarshalTo

func (m *UnresolvedAddr) MarshalTo(dAtA []byte) (int, error)

func (*UnresolvedAddr) Network

func (a *UnresolvedAddr) Network() string

Network returns the address's network name.

func (*UnresolvedAddr) ProtoMessage

func (*UnresolvedAddr) ProtoMessage()

func (*UnresolvedAddr) Reset

func (m *UnresolvedAddr) Reset()

func (UnresolvedAddr) Resolve

func (a UnresolvedAddr) Resolve() (net.Addr, error)

Resolve attempts to resolve a into a net.Addr.

func (*UnresolvedAddr) Size

func (m *UnresolvedAddr) Size() (n int)

func (*UnresolvedAddr) String

func (a *UnresolvedAddr) String() string

String returns the address's string form.

func (*UnresolvedAddr) Unmarshal

func (m *UnresolvedAddr) Unmarshal(dAtA []byte) error

Directories

Path Synopsis
Package hlc implements the Hybrid Logical Clock outlined in "Logical Physical Clocks and Consistent Snapshots in Globally Distributed Databases", available online at http://www.cse.buffalo.edu/tech-reports/2014-04.pdf.
Package hlc implements the Hybrid Logical Clock outlined in "Logical Physical Clocks and Consistent Snapshots in Globally Distributed Databases", available online at http://www.cse.buffalo.edu/tech-reports/2014-04.pdf.
Package interval implements an interval tree based on an augmented Left-Leaning Red Black tree.
Package interval implements an interval tree based on an augmented Left-Leaning Red Black tree.
Package leaktest provides tools to detect leaked goroutines in tests.
Package leaktest provides tools to detect leaked goroutines in tests.
log
Package log implements logging analogous to the Google-internal C++ INFO/ERROR/V setup.
Package log implements logging analogous to the Google-internal C++ INFO/ERROR/V setup.
Package metric provides server metrics (a.k.a.
Package metric provides server metrics (a.k.a.
Package sdnotify implements both sides of the systemd readiness protocol.
Package sdnotify implements both sides of the systemd readiness protocol.
Package tracing is a generated protocol buffer package.
Package tracing is a generated protocol buffer package.

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