Fdata

Fdata is a term used in programming to denote file-related data or function data. It is not a standardized concept with a single definition; its meaning varies by project, language, and API.

In software libraries, fdata is commonly the name of a data structure or field that carries information about a file. Typical contents include the file path, size, type, timestamps, permissions, and a data payload read from the file. The exact fields depend on the API and the domain, such as distinguishing between file metadata and file contents.

In APIs and callbacks, fdata can refer to a structure passed to a function to provide context about a file operation, or to a buffer containing the contents of a file. It may also denote a generic container used in pipelines that process file-derived records.

Because fdata is informal and context-dependent, readers should consult the specific codebase documentation to understand its definition and usage. The lack of a standard definition makes interpretation of fdata inherently project-specific.

Related concepts include file metadata, file formats, and data structures that store file-related information. In practice, the term serves as a convenient shorthand for a collection of fields or a data payload tied to a file within a given software system.