nettrace
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Documentation¶
Overview¶
Package nettrace contains internal hooks for tracing activity inthe net package. This package is purely internal for use by thenet/http/httptrace package and has no stable API exposed to endusers.
Index¶
Constants¶
This section is empty.
Variables¶
This section is empty.
Functions¶
This section is empty.
Types¶
typeLookupIPAltResolverKey¶
type LookupIPAltResolverKey struct{}LookupIPAltResolverKey is a context.Context Value key used by tests tospecify an alternate resolver func.It is not exposed to outsider users. (But see issue 12503)The value should be the same type as lookupIP:
func lookupIP(ctx context.Context, host string) ([]IPAddr, error)
typeTrace¶
type Trace struct {// DNSStart is called with the hostname of a DNS lookup// before it begins.DNSStart func(namestring)// DNSDone is called after a DNS lookup completes (or fails).// The coalesced parameter is whether singleflight de-duped// the call. The addrs are of type net.IPAddr but can't// actually be for circular dependency reasons.DNSDone func(netIPs []any, coalescedbool, errerror)// ConnectStart is called before a Dial, excluding Dials made// during DNS lookups. In the case of DualStack (Happy Eyeballs)// dialing, this may be called multiple times, from multiple// goroutines.ConnectStart func(network, addrstring)// ConnectDone is called after a Dial with the results, excluding// Dials made during DNS lookups. It may also be called multiple// times, like ConnectStart.ConnectDone func(network, addrstring, errerror)}Trace contains a set of hooks for tracing events withinthe net package. Any specific hook may be nil.
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