google::cloud::pubsub::MaxPendingMessagesOption Struct Reference

The maximum number of pending messages. More...

#include <google/cloud/pubsub/options.h>

Public Types
using	Type = std::size_t

Detailed Description

The maximum number of pending messages.

After a publisher flushes a batch of messages the batch is (obviously) not received immediately by the service. While the batch remains pending it potentially consumes memory resources in the client (and/or the service).

Some applications may have constraints on the number of bytes and/or messages they can tolerate in this pending state, and may prefer to block or reject messages.

Member Typedef Documentation

Type

using google::cloud::pubsub::MaxPendingMessagesOption::Type = std::size_t