Api function
#include <gnutls/gnutls.h>
int gnutls_heartbeat_ping(gnutls_session_t session, size_t data_size, unsigned int max_tries, unsigned int flags);
is a gnutls_session_t structure.
is the length of the ping payload.
if flags is GNUTLS_HEARTBEAT_WAIT then this sets the number of retransmissions. Use zero for indefinite (until timeout).
if GNUTLS_HEARTBEAT_WAIT then wait for pong or timeout instead of returning immediately.
This function sends a ping to the peer. If the flags is set to GNUTLS_HEARTBEAT_WAIT then it waits for a reply from the peer.
Note that it is highly recommended to use this function with the flag GNUTLS_HEARTBEAT_WAIT, or you need to handle retransmissions and timeouts manually.
GNUTLS_E_SUCCESS on success, otherwise a negative error code.
3.1.2
Report bugs to <[email protected]>.
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