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zookeeper: add createOrUpdate method [#METR-15514]

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This commit is contained in:
Pavel Kartavyy 2015-06-09 15:30:30 +03:00
parent 4463a747da
commit 67944de74e
2 changed files with 14 additions and 0 deletions
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3
libs/libzkutil/include/zkutil/ZooKeeper.h
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@ -126,6 +126,9 @@ public:
void set(const std::string & path, const std::string & data,
int32_t version = -1, Stat * stat = nullptr);
/** Создает ноду, если ее не существует. Иначе обновляет */
void createOrUpdate(const std::string & path, const std::string & data, int32_t mode);
/** Не бросает исключение при следующих ошибках:
* - Такой ноды нет.
* - У ноды другая версия.

11
libs/libzkutil/src/ZooKeeper.cpp
View File

@ -418,6 +418,17 @@ void ZooKeeper::set(const std::string & path, const std::string & data, int32_t
check(trySet(path, data, version, stat), path);
}
void ZooKeeper::createOrUpdate(const std::string & path, const std::string & data, int32_t mode)
{
int code = trySet(path, data, -1);
if (code == ZNONODE)
{
create(path, data, mode);
}
else
throw zkutil::KeeperException(code, path);
}
int32_t ZooKeeper::trySet(const std::string & path, const std::string & data,
int32_t version, Stat * stat_)
{