pFactoryOptions

pFactoryOptions is a configuration object used by factory functions to influence how product instances are created within a software library. It is commonly employed in systems implementing the factory design pattern to allow caller-controlled customization without altering the factory's core logic.

In many languages with C-style APIs, pFactoryOptions is defined as a struct or class whose contents are passed to a factory method. The object is typically allocated by the caller and inspected by the factory to determine initialization steps, memory management, and optional hooks.

Common fields include a userData pointer that the library passes back to callbacks, optional pre-create and post-create callbacks, a memory allocator or memory pool reference, a list of dependencies to be satisfied before construction, and a flags field that controls behavior such as allowing null results or skipping certain initialization steps.

The exact fields and semantics of pFactoryOptions vary by library and language. Some implementations provide a dedicated createFn to override object construction, while others rely on callbacks to extend or wrap default creation. When used, pFactoryOptions enables flexible composition and extensibility without changing factory internals.

Because the concept is a pattern rather than a universal standard, refer to the specific library’s documentation to understand available fields and default values.