Function lmdb_sys::mdb_env_get_path
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@brief Return the path that was used in #mdb_env_open().
@param[in] env An environment handle returned by #mdb_env_create() @param[out] path Address of a string pointer to contain the path. This is the actual string in the environment, not a copy. It should not be altered in any way. @return A non-zero error value on failure and 0 on success. Some possible errors are:
- EINVAL - an invalid parameter was specified.