Function libnghttp2_sys::nghttp2_session_callbacks_set_on_header_callback

pub unsafe extern "C" fn nghttp2_session_callbacks_set_on_header_callback(
    cbs: *mut nghttp2_session_callbacks, 
    on_header_callback: nghttp2_on_header_callback
)

@function

Sets callback function invoked when a header name/value pair is received. If both nghttp2_session_callbacks_set_on_header_callback() and nghttp2_session_callbacks_set_on_header_callback2() are used to set callbacks, the latter has the precedence.