SSL_WRITING
#define SSL_want_write(s) (SSL_want(s) == SSL_WRITING)
return SSL_WRITING;
s->rwstate = writing ? SSL_WRITING : SSL_READING;
sc->rwstate = SSL_WRITING;
s->rwstate = SSL_WRITING;
s->rwstate = SSL_WRITING;
|| (ec == SSL_ERROR_WANT_WRITE && w == SSL_WRITING)
|| (ec == SSL_ERROR_WANT_WRITE && w == SSL_WRITING)