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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 11:32:39 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 11:32:39 +0000 |
commit | 56ae875861ab260b80a030f50c4aff9f9dc8fff0 (patch) | |
tree | 531412110fc901a5918c7f7442202804a83cada9 /lib/remote/configobjectslock.hpp | |
parent | Initial commit. (diff) | |
download | icinga2-56ae875861ab260b80a030f50c4aff9f9dc8fff0.tar.xz icinga2-56ae875861ab260b80a030f50c4aff9f9dc8fff0.zip |
Adding upstream version 2.14.2.upstream/2.14.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | lib/remote/configobjectslock.hpp | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/lib/remote/configobjectslock.hpp b/lib/remote/configobjectslock.hpp new file mode 100644 index 0000000..ee90981 --- /dev/null +++ b/lib/remote/configobjectslock.hpp @@ -0,0 +1,72 @@ +/* Icinga 2 | (c) 2023 Icinga GmbH | GPLv2+ */ + +#pragma once + +#include <mutex> + +#ifndef _WIN32 +#include <boost/interprocess/sync/interprocess_sharable_mutex.hpp> +#include <boost/interprocess/sync/scoped_lock.hpp> +#include <boost/interprocess/sync/sharable_lock.hpp> +#endif /* _WIN32 */ + +namespace icinga +{ + +#ifdef _WIN32 + +class ConfigObjectsSharedLock +{ +public: + inline ConfigObjectsSharedLock(std::try_to_lock_t) + { + } + + constexpr explicit operator bool() const + { + return true; + } +}; + +#else /* _WIN32 */ + +/** + * Waits until all ConfigObjects*Lock-s have vanished. For its lifetime disallows such. + * Keep an instance alive during reload to forbid runtime config changes! + * This way Icinga reads a consistent config which doesn't suddenly get runtime-changed. + * + * @ingroup remote + */ +class ConfigObjectsExclusiveLock +{ +public: + ConfigObjectsExclusiveLock(); + +private: + boost::interprocess::scoped_lock<boost::interprocess::interprocess_sharable_mutex> m_Lock; +}; + +/** + * Waits until the only ConfigObjectsExclusiveLock has vanished (if any). For its lifetime disallows such. + * Keep an instance alive during runtime config changes to delay a reload (if any)! + * This way Icinga reads a consistent config which doesn't suddenly get runtime-changed. + * + * @ingroup remote + */ +class ConfigObjectsSharedLock +{ +public: + ConfigObjectsSharedLock(std::try_to_lock_t); + + inline explicit operator bool() const + { + return m_Lock.owns(); + } + +private: + boost::interprocess::sharable_lock<boost::interprocess::interprocess_sharable_mutex> m_Lock; +}; + +#endif /* _WIN32 */ + +} |