util

package
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Published: Jun 21, 2016 License: Apache-2.0 Imports: 28 Imported by: 0

Documentation

Overview

Package util is a generated protocol buffer package.

It is generated from these files:

cockroach/util/unresolved_addr.proto

It has these top-level messages:

UnresolvedAddr

Index

Constants

View Source
const (
	// AcceptHeader is the canonical header name for accept.
	AcceptHeader = "Accept"
	// AcceptEncodingHeader is the canonical header name for accept encoding.
	AcceptEncodingHeader = "Accept-Encoding"
	// ContentEncodingHeader is the canonical header name for content type.
	ContentEncodingHeader = "Content-Encoding"
	// ContentTypeHeader is the canonical header name for content type.
	ContentTypeHeader = "Content-Type"
	// JSONContentType is the JSON content type.
	JSONContentType = "application/json"
	// AltJSONContentType is the alternate JSON content type.
	AltJSONContentType = "application/x-json"
	// ProtoContentType is the protobuf content type.
	ProtoContentType = "application/x-protobuf"
	// AltProtoContentType is the alternate protobuf content type.
	AltProtoContentType = "application/x-google-protobuf"
	// PlaintextContentType is the plaintext content type.
	PlaintextContentType = "text/plain"
	// GzipEncoding is the gzip encoding.
	GzipEncoding = "gzip"
)

Variables

View Source
var (
	ErrInvalidLengthUnresolvedAddr = fmt.Errorf("proto: negative length found during unmarshaling")
	ErrIntOverflowUnresolvedAddr   = fmt.Errorf("proto: integer overflow")
)
View Source
var PanicTester = panicTesterImpl{}

PanicTester is a Tester which panics.

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 CleanupDir

func CleanupDir(dir string)

CleanupDir removes the passed-in directory and all contents. Errors are ignored.

func CreateRestrictedFile

func CreateRestrictedFile(t Tester, contents []byte, tempdir, name string) string

CreateRestrictedFile creates a file on disk which contains the supplied byte string as its content. The resulting file will have restrictive permissions; specifically, u=rw (0600). Returns the path of the created file along with a function that will delete the created file.

This is needed for some Go libraries (e.g. postgres SQL driver) which will refuse to open certificate files that have overly permissive permissions.

func CreateTempDir

func CreateTempDir(t Tester, prefix string) string

CreateTempDir creates a temporary directory and returns its path. You should usually call defer CleanupDir(dir) right after.

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 Errorf

func Errorf(format string, a ...interface{}) error

Errorf is a passthrough to fmt.Errorf, with an additional prefix containing the filename and line number.

func ErrorfSkipFrames

func ErrorfSkipFrames(skip int, format string, a ...interface{}) error

ErrorfSkipFrames allows the skip count for stack frames to be specified. This is useful when generating errors via helper methods. Skip should be specified as the number of additional stack frames between the location at which the error is caused and the location at which the error is generated.

func FatalIfUnexpected

func FatalIfUnexpected(err error)

FatalIfUnexpected calls Log.Fatal(err) unless err is nil, cmux.ErrListenerClosed, or the net package's errClosed.

func GetJSON

func GetJSON(httpClient http.Client, path string, response proto.Message) error

GetJSON uses the supplied client to GET the URL specified by the parameters and unmarshals the result into response.

func IsClosedConnection

func IsClosedConnection(err error) bool

IsClosedConnection returns true if err is cmux.ErrListenerClosed, grpc.ErrServerStopped, io.EOF, or the net package's errClosed.

func ListenAndServeGRPC

func ListenAndServeGRPC(stopper *stop.Stopper, server *grpc.Server,
	addr net.Addr) (net.Listener, error)

ListenAndServeGRPC creates a listener and serves the specified grpc Server on it, closing the listener when signalled by the stopper.

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 NoZeroField

func NoZeroField(v interface{}) error

NoZeroField returns nil if none of the fields of the struct underlying the interface are equal to the zero value, and an error otherwise. It will panic if the struct has unexported fields and for any non-struct.

func Pluralize

func Pluralize(n int64) string

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

func PostJSON

func PostJSON(httpClient http.Client, path string, request, response proto.Message) error

PostJSON uses the supplied client to POST request to the URL specified by the parameters and unmarshals the result into response .

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 StreamJSON

func StreamJSON(
	httpClient http.Client,
	path string,
	request proto.Message,
	dest proto.Message,
	callback func(proto.Message),
) error

StreamJSON uses the supplied client to POST the given proto request as JSON to the supplied streaming grpc-gw endpoint; the response type serves only to create the values passed to the callback (which is invoked for every message in the stream with a value of the supplied response type masqueraded as an interface).

func SucceedsSoon

func SucceedsSoon(t Tester, fn func() error)

SucceedsSoon fails the test (with t.Fatal) unless the supplied function runs without error within a preset maximum duration. The function is invoked immediately at first and then successively with an exponential backoff starting at 1ns and ending at the maximum duration (currently 15s).

func SucceedsSoonDepth

func SucceedsSoonDepth(depth int, t Tester, fn func() error)

SucceedsSoonDepth is like SucceedsSoon() but with an additional stack depth offset.

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 JSONPb

type JSONPb jsonpb.Marshaler

JSONPb is a gwruntime.Marshaler that uses github.com/gogo/protobuf/jsonpb.

func (*JSONPb) ContentType

func (*JSONPb) ContentType() string

ContentType implements gwruntime.Marshaler.

func (*JSONPb) Marshal

func (j *JSONPb) Marshal(v interface{}) ([]byte, error)

Marshal implements gwruntime.Marshaler.

func (*JSONPb) NewDecoder

func (j *JSONPb) NewDecoder(r io.Reader) gwruntime.Decoder

NewDecoder implements gwruntime.Marshaler.

func (*JSONPb) NewEncoder

func (j *JSONPb) NewEncoder(w io.Writer) gwruntime.Encoder

NewEncoder implements gwruntime.Marshaler.

func (*JSONPb) Unmarshal

func (j *JSONPb) Unmarshal(data []byte, v interface{}) error

Unmarshal implements gwruntime.Marshaler.

type ProtoPb

type ProtoPb struct{}

ProtoPb is a gwruntime.Marshaler that uses github.com/gogo/protobuf/proto.

func (*ProtoPb) ContentType

func (*ProtoPb) ContentType() string

ContentType implements gwruntime.Marshaler.

func (*ProtoPb) Marshal

func (*ProtoPb) Marshal(v interface{}) ([]byte, error)

Marshal implements gwruntime.Marshaler.

func (*ProtoPb) NewDecoder

func (*ProtoPb) NewDecoder(r io.Reader) gwruntime.Decoder

NewDecoder implements gwruntime.Marshaler.

func (*ProtoPb) NewEncoder

func (*ProtoPb) NewEncoder(w io.Writer) gwruntime.Encoder

NewEncoder implements gwruntime.Marshaler.

func (*ProtoPb) Unmarshal

func (*ProtoPb) Unmarshal(data []byte, v interface{}) error

Unmarshal implements gwruntime.Marshaler.

type Server

type Server struct {
	*http.Server
}

Server is a thin wrapper around http.Server. See MakeServer for more detail.

func MakeServer

func MakeServer(stopper *stop.Stopper, tlsConfig *tls.Config, handler http.Handler) Server

MakeServer constructs a Server that tracks active connections, closing them when signalled by stopper.

func (*Server) ServeWith

func (s *Server) ServeWith(l net.Listener, serveConn func(net.Conn)) error

ServeWith accepts connections on ln and serves them using serveConn.

type Tester

type Tester interface {
	Error(args ...interface{})
	Errorf(format string, args ...interface{})
	Failed() bool
	Fatal(args ...interface{})
	Fatalf(format string, args ...interface{})
}

Tester is a proxy for e.g. testing.T which does not introduce a dependency on "testing".

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.

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) 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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