Type Alias SysLogFn 

pub type SysLogFn = Option<unsafe extern "C" fn(userdata: *mut c_void, level: Type, scope: *const u8, scope_len: usize, message: *const u8, message_len: usize)>;

Callback type for logging.

When installed, internal library log messages are delivered through this callback instead of being discarded. The embedder is responsible for formatting and routing log output.

When the log is unscoped (default scope), @p scope_len is 0.

All pointer arguments are only valid for the duration of the callback. The callback must be safe to call from any thread.

Aliased Type

pub enum SysLogFn {
    None,
    Some(unsafe extern "C" fn(*mut c_void, u32, *const u8, usize, *const u8, usize)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut c_void, u32, *const u8, usize, *const u8, usize))

Some value of type T.