Struct ZL_OpaquePtr 

#[repr(C)]
pub struct ZL_OpaquePtr {
    pub ptr: *mut c_void,
    pub freeOpaquePtr: *mut c_void,
    pub freeFn: Option<unsafe extern "C" fn(freeOpaquePtr: *mut c_void, ptr: *mut c_void)>,
}

Fields

ptr: *mut c_void

Opaque pointer that is passed back to the user when calling functions like:

• ZL_Encoder_getOpaquePtr()
• ZL_Decoder_getOpaquePtr()
• ZL_Graph_getOpaquePtr()
• ZL_Selector_getOpaquePtr()

freeOpaquePtr: *mut c_void

Additional pointer passed to the free function. This additional pointer allows, for example, to use a C++ lambda as a free function.

freeFn: Option<unsafe extern "C" fn(freeOpaquePtr: *mut c_void, ptr: *mut c_void)>

Frees the ZL_OpaquePtr::ptr, and if needed also the ZL_OpaquePtr::freeOpaquePtr. This function is called exactly once by OpenZL once the opaque pointer has been registered. If freeFn is NULL, then it is not called.

Trait Implementations

impl Clone for ZL_OpaquePtr

fn clone(&self) -> ZL_OpaquePtr

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ZL_OpaquePtr

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ZL_OpaquePtr

fn default() -> Self

Returns the “default value” for a type.

impl Copy for ZL_OpaquePtr