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Contents
// Copyright 2021 gRPC authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef GRPC_CORE_LIB_PROMISE_INTRA_ACTIVITY_WAITER_H
#define GRPC_CORE_LIB_PROMISE_INTRA_ACTIVITY_WAITER_H
#include <grpc/support/port_platform.h>
#include "src/core/lib/promise/activity.h"
#include "src/core/lib/promise/poll.h"
namespace grpc_core {
// Helper type to track wakeups between objects in the same activity.
// Can be fairly fast as no ref counting or locking needs to occur.
class IntraActivityWaiter {
public:
// Register for wakeup, return Pending(). If state is not ready to proceed,
// Promises should bottom out here.
Pending pending() {
waiting_ = true;
return Pending();
}
// Wake the activity
void Wake() {
if (waiting_) {
waiting_ = false;
Activity::current()->ForceImmediateRepoll();
}
}
private:
bool waiting_ = false;
};
} // namespace grpc_core
#endif // GRPC_CORE_LIB_PROMISE_INTRA_ACTIVITY_WAITER_H
Version data entries
27 entries across 27 versions & 2 rubygems