grpc_event_engine::experimental::IomgrEventEngine::IomgrDNSResolver Class Reference

#include <iomgr_engine.h>

Inheritance diagram for grpc_event_engine::experimental::IomgrEventEngine::IomgrDNSResolver:

Public Member Functions
bool	CancelLookup (LookupTaskHandle handle) override
LookupTaskHandle	LookupHostname (LookupHostnameCallback on_resolve, absl::string_view name, absl::string_view default_port, Duration timeout) override
LookupTaskHandle	LookupSRV (LookupSRVCallback on_resolve, absl::string_view name, Duration timeout) override
LookupTaskHandle	LookupTXT (LookupTXTCallback on_resolve, absl::string_view name, Duration timeout) override
	~IomgrDNSResolver () override
Public Member Functions inherited from grpc_event_engine::experimental::EventEngine::DNSResolver
virtual	~DNSResolver ()=default

Additional Inherited Members
Public Types inherited from grpc_event_engine::experimental::EventEngine::DNSResolver
using	LookupHostnameCallback = std::function< void(absl::StatusOr< std::vector< ResolvedAddress > >)>
using	LookupSRVCallback = std::function< void(absl::StatusOr< std::vector< SRVRecord > >)>
	Called with a collection of SRV records. More...
using	LookupTXTCallback = std::function< void(absl::StatusOr< std::string >)>
	Called with the result of a TXT record lookup. More...

Detailed Description

Definition at line 63 of file iomgr_engine.h.

Constructor & Destructor Documentation

~IomgrDNSResolver()

grpc_event_engine::experimental::IomgrEventEngine::IomgrDNSResolver::~IomgrDNSResolver ( )

override

Member Function Documentation

CancelLookup()

bool grpc_event_engine::experimental::IomgrEventEngine::IomgrDNSResolver::CancelLookup ( LookupTaskHandle  handle )

overridevirtual

Cancel an asynchronous lookup operation.

This shares the same semantics with EventEngine::Cancel: successfully cancelled lookups will not have their callbacks executed, and this method returns true.

Implements grpc_event_engine::experimental::EventEngine::DNSResolver.

LookupHostname()

LookupTaskHandle grpc_event_engine::experimental::IomgrEventEngine::IomgrDNSResolver::LookupHostname ( LookupHostnameCallback  on_resolve, absl::string_view  name, absl::string_view  default_port, Duration  timeout  )

overridevirtual

Asynchronously resolve an address.

default_port may be a non-numeric named service port, and will only be used if address does not already contain a port component.

When the lookup is complete, the on_resolve callback will be invoked with a status indicating the success or failure of the lookup. Implementations should pass the appropriate statuses to the callback. For example, callbacks might expect to receive DEADLINE_EXCEEDED or NOT_FOUND.

If cancelled, on_resolve will not be executed.

Implements grpc_event_engine::experimental::EventEngine::DNSResolver.

LookupSRV()

LookupTaskHandle grpc_event_engine::experimental::IomgrEventEngine::IomgrDNSResolver::LookupSRV ( LookupSRVCallback  on_resolve, absl::string_view  name, Duration  timeout  )

overridevirtual

Asynchronously perform an SRV record lookup.

on_resolve has the same meaning and expectations as LookupHostname's on_resolve callback.

Implements grpc_event_engine::experimental::EventEngine::DNSResolver.

LookupTXT()

LookupTaskHandle grpc_event_engine::experimental::IomgrEventEngine::IomgrDNSResolver::LookupTXT ( LookupTXTCallback  on_resolve, absl::string_view  name, Duration  timeout  )

overridevirtual

Asynchronously perform a TXT record lookup.

on_resolve has the same meaning and expectations as LookupHostname's on_resolve callback.

Implements grpc_event_engine::experimental::EventEngine::DNSResolver.

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The documentation for this class was generated from the following file:

• iomgr_engine.h