hdf5-vfdswmr

The primary objective of the Virtual File Driver (VFD) Single-Writer Multiple-Reader (SWMR) is to implement a more modular approach than the current SWMR HDF5 library implementation, thereby reducing maintenance costs and improving overall library efficiency. This allows the HDF5 library to guarantee the maximum time from data writing to reading availability, depending on the underlying file system's performance and the writer's frequency of library calls. Additionally, it extends SWMR compatibility to Network File Systems (NFS) and object storage. This proposal outlines the necessary work for supporting the VFD SWMR framework, as well as other VFDs, since the current process of configuring VFD stacks can be complex and time-consuming. The proposed language parser aims to streamline this process by introducing a straightforward configuration language that allows for flexible and structured configuration through the use of name-value pairs. The grammar and structure of the language will define these name-value pairs, specifying the types for the values, which may include integers, floating-point numbers, quoted strings, binary blobs, and lists of name-value pairs. Notably, the grammar will fully support tree-structured VFD stacks, providing a robust and reliable configuration solution. For parsing and implementation, the language will utilize a recursive descent parser. This parser will adeptly handle the configuration language, with functions dedicated to parsing name-value pairs and lists, and will return success or failure based on validation results.