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* Copyright (C) 2015 Canonical Ltd.
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 3 as
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* published by the Free Software Foundation.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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* Authored by: Michi Henning <michi.henning@canonical.com>
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class AdvisoryFileLock final
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AdvisoryFileLock(std::string const& path);
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AdvisoryFileLock(AdvisoryFileLock const&) = delete;
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AdvisoryFileLock& operator=(AdvisoryFileLock const&) = delete;
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AdvisoryFileLock(AdvisoryFileLock&&) = default;
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AdvisoryFileLock& operator=(AdvisoryFileLock&&) = default;
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static int const sleep_interval = 100;
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// Returns true if lock can be acquired within msecs, false otherwise.
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// Pass milliseconds::zero() to wait indefinitely.
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// Throws if lock is already held by the calling process.
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// Wait is implemented as a busy-wait loop, retrying every sleep_interval milliseconds.
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bool lock(std::chrono::milliseconds msecs = std::chrono::milliseconds::zero());
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// Throws if lock is not held by the calling process.
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} // namespace internal
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} // namespace thumbnailer
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} // namespace service
added
removed
include/internal/file_lock.h
