foundationdb/flow/genericactors.actor.cpp
Alex Miller 7feb5d8209 Remove including flow.h in actorcompiler.h, and fix resulting breakage.
For files that required flow.h, and only got it through actorcompiler.h,
their version of flow.h would have the actorcompiler #defines defined.
Then, if it included a STL/boost file, the same breakage would result.

This needs to not happen, so the include of flow.h in actorcompiler.h
was removed.
2018-08-14 15:50:26 -07:00

86 lines
2.5 KiB
C++

/*
* genericactors.actor.cpp
*
* This source file is part of the FoundationDB open source project
*
* Copyright 2013-2018 Apple Inc. and the FoundationDB project 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.
*/
#include "flow/flow.h"
#include "flow/actorcompiler.h" // This must be the last #include.
ACTOR Future<bool> allTrue( std::vector<Future<bool>> all ) {
state int i=0;
while (i != all.size()) {
bool r = wait( all[i] );
if (!r) return false;
i++;
}
return true;
}
ACTOR Future<Void> anyTrue( std::vector<Reference<AsyncVar<bool>>> input, Reference<AsyncVar<bool>> output ) {
loop {
bool oneTrue = false;
std::vector<Future<Void>> changes;
for(auto it : input) {
if( it->get() ) oneTrue = true;
changes.push_back( it->onChange() );
}
output->set( oneTrue );
wait( waitForAny(changes) );
}
}
ACTOR Future<Void> cancelOnly( std::vector<Future<Void>> futures ) {
// We don't do anything with futures except hold them, we never return, but if we are cancelled we (naturally) drop the futures
wait( Never() );
return Void();
}
ACTOR Future<Void> timeoutWarningCollector( FutureStream<Void> input, double logDelay, const char* context, UID id ) {
state uint64_t counter = 0;
state Future<Void> end = delay( logDelay );
loop choose {
when ( waitNext( input ) ) {
counter++;
}
when ( wait( end ) ) {
if( counter )
TraceEvent(SevWarn, context, id).detail("LateProcessCount", counter).detail("LoggingDelay", logDelay);
end = delay( logDelay );
counter = 0;
}
}
}
ACTOR Future<bool> quorumEqualsTrue( std::vector<Future<bool>> futures, int required ) {
state std::vector< Future<Void> > true_futures;
state std::vector< Future<Void> > false_futures;
for(int i=0; i<futures.size(); i++) {
true_futures.push_back( onEqual( futures[i], true ) );
false_futures.push_back( onEqual( futures[i], false ) );
}
choose {
when( wait( quorum( true_futures, required ) ) ) {
return true;
}
when( wait( quorum( false_futures, futures.size() - required + 1 ) ) ) {
return false;
}
}
}