Function libnghttp2_sys::nghttp2_submit_ping [−][src]
pub unsafe extern "C" fn nghttp2_submit_ping(
session: *mut nghttp2_session,
flags: u8,
opaque_data: *const u8
) -> c_int
@function
Submits PING frame. You don’t have to send PING back when you received PING frame. The library automatically submits PING frame in this case.
The |flags| is bitwise OR of 0 or more of the following value.
- :enum:
NGHTTP2_FLAG_ACK
Unless nghttp2_option_set_no_auto_ping_ack() is used, the |flags|
should be :enum:NGHTTP2_FLAG_NONE.
If the |opaque_data| is non NULL, then it should point to the 8
bytes array of memory to specify opaque data to send with PING
frame. If the |opaque_data| is NULL, zero-cleared 8 bytes will
be sent as opaque data.
This function returns 0 if it succeeds, or one of the following negative error codes:
:enum:NGHTTP2_ERR_NOMEM
Out of memory.