Module libffi::low

A low-level wrapping of libffi, this layer makes no attempts at safety, but tries to provide a somewhat more idiomatic interface.

This module also re-exports types and constants necessary for using the library, so it should not be generally necessary to use the raw module. While this is a bit “Rustier” than raw, I’ve avoided drastic renaming in favor of hewing close to the libffi API. See middle for an easier-to-use approach.

Modules

• type_tag
  Type tags used in constructing and inspecting ffi_types.
• types
  Re-exports the ffi_type objects used to describe the types of arguments and results.

Structs

• CodePtr
  Wraps a function pointer of unknown type.
• ffi_cif
• ffi_closure
• ffi_type

Enums

• Error
  The two kinds of errors reported by libffi.

Constants

• ffi_abi_FFI_DEFAULT_ABI

Functions

• call^⚠
  Calls a C function as specified by a CIF.
• closure_alloc
  Allocates a closure.
• closure_free^⚠
  Frees a closure.
• prep_cif^⚠
  Initalizes a CIF (Call Interface) with the given ABI and types.
• prep_cif_var^⚠
  Initalizes a CIF (Call Interface) for a varargs function.
• prep_closure^⚠
  Initializes a closure with a callback function and userdata.
• prep_closure_mut^⚠
  Initializes a mutable closure with a callback function and (mutable) userdata.

Type Definitions

• Callback
  The type of function called by a closure.
• CallbackMut
  The type of function called by a mutable closure.
• RawCallback
  The callback type expected by raw::ffi_prep_closure_loc.
• Result
  The std::result::Result type specialized for libffi Errors.
• ffi_abi
• ffi_arg
• ffi_sarg
• ffi_status