Function s2n_tls_sys::s2n_send

pub unsafe extern "C" fn s2n_send(
    conn: *mut s2n_connection,
    buf: *const c_void,
    size: isize,
    blocked: *mut Type
) -> isize

Writes and encrypts size of buf data to the associated connection. s2n_send() will return the number of bytes written, and may indicate a partial write.

@note Partial writes are possible not just for non-blocking I/O, but also for connections aborted while active. @note Unlike OpenSSL, repeated calls to s2n_send() should not duplicate the original parameters, but should update buf and size per the indication of size written.

See the following example for guidance on calling s2n_send(): https://github.com/aws/s2n-tls/blob/main/docs/examples/s2n_send.c

@param conn A pointer to the s2n_connection object @param buf A pointer to a buffer that s2n will write data from @param size The size of buf @param blocked A pointer which will be set to the blocked status if an S2N_ERR_T_BLOCKED error is returned. @returns The number of bytes written on success, which may indicate a partial write. S2N_FAILURE on failure.