cancellation refactoring

This commit is contained in:
Benjamin Sergeant
2019-01-03 12:53:44 -08:00
parent d5041f64be
commit 97255fbd62
7 changed files with 52 additions and 70 deletions

View File

@ -0,0 +1,33 @@
/*
* IXCancellationRequest.cpp
* Author: Benjamin Sergeant
* Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
*/
#include "IXCancellationRequest.h"
#include <chrono>
namespace ix
{
CancellationRequest makeCancellationRequestWithTimeout(int secs,
std::atomic<bool>& requestInitCancellation)
{
auto start = std::chrono::system_clock::now();
auto timeout = std::chrono::seconds(secs);
auto isCancellationRequested = [&requestInitCancellation, start, timeout]() -> bool
{
// Was an explicit cancellation requested ?
if (requestInitCancellation) return true;
auto now = std::chrono::system_clock::now();
if ((now - start) > timeout) return true;
// No cancellation request
return false;
};
return isCancellationRequested;
}
}