HITLS_ERR_SYSCALL HITLS_ERR_TLS HITLS_ERROR HITLS_WANT_ACCEPT HITLS_WANT_CONNECT HITLS_WANT_READ HITLS_WANT_WRITE

HITLS_WANT_WRITE #define HITLS_WANT_WRITE   4 The sending buffer is full and the interface can be called to continue sending data.