Crate ffi_helpers [−] [src]

A crate to help make working with FFI easier.

Re-exports

pub use error_handling::error_message;

pub use error_handling::take_last_error;

pub use error_handling::update_last_error;

pub use panic::catch_panic;

pub use task::Task;

error_handling	Common error handling routines.
panic
task	Management of asynchronous tasks in an FFI context.

catch_panic	A convenience macro for running a fallible operation (which may panic) and returning `Nullable::NULL` if there are any errors.
export_error_handling_functions	As a workaround for rust-lang/rust#6342, you can use this macro to make sure the symbols for `ffi_helpers`'s error handling are correctly exported in your `cdylib`.
export_task	Convenience macro to define the FFI bindings for working with a `Task`.
null_pointer_check	Check if we've been given a null pointer, if so we'll return early.

A null pointer was encountered where it wasn't expected.

An object which has an "obviously invalid" value, for use with the null_pointer_check!() macro.