/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
namespace sal::systools
{ // Some system calls (e.g., clipboard access functions) may fail first time, because the resource // may only be accessed by one process at a time. This function allows to retry failed call up to // specified number of times with a specified interval (in ms), until the call succeeds or the limit // of attempts is exceeded. // Usage: // HRESULT hr = sal::systools::RetryIfFailed(10, 100, []{ return OleFlushClipboard(); }); template <typename Func>
std::enable_if_t<std::is_same_v<std::invoke_result_t<Func>, HRESULT>, HRESULT>
RetryIfFailed(unsigned times, unsigned msInterval, Func func)
{ for (unsigned i = 0;; ++i)
{ if (HRESULT hr = func(); SUCCEEDED(hr) || i >= times) return hr;
Sleep(msInterval);
}
}
}
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