Module ffi_string 

FFI string utilities

Helper functions for retrieving strings from C/Objective-C APIs that use buffer-based string retrieval patterns.

Constants

DEFAULT_BUFFER_SIZE

Default buffer size for FFI string retrieval

SMALL_BUFFER_SIZE

Smaller buffer size for short strings (e.g., device IDs, stream names)

Functions

ffi_string_from_buffer^⚠

Retrieves a string from an FFI function that writes to a buffer.

ffi_string_from_buffer_or_empty^⚠

Same as ffi_string_from_buffer but returns an empty string on failure instead of None.

ffi_string_owned^⚠

Retrieves a string from an FFI function that returns an owned C string pointer.

ffi_string_owned_or_empty^⚠

Same as ffi_string_owned but returns an empty string on failure.

take_owned_cstring^⚠

Take ownership of an already-obtained Swift/Objective-C C string pointer and free the source via free_fn.

take_owned_cstring_c^⚠

Same as take_owned_cstring but for *mut std::ffi::c_char.