pub type VipsThreadStartFn = Option<unsafe extern "C" fn(im: *mut VipsImage, a: *mut c_void) -> *mut VipsThreadState>;
Aliased Type§
enum VipsThreadStartFn {
None,
Some(unsafe extern "C" fn(*mut _VipsImage, *mut c_void) -> *mut _VipsThreadState),
}
Variants§
None
No value.
Some(unsafe extern "C" fn(*mut _VipsImage, *mut c_void) -> *mut _VipsThreadState)
Some value of type T
.