Method flush

src/socket.cpp:2159–2185

Flush any output buffers for this socket. */

/* Flush any output buffers for this socket. */
int SIPpSocket::flush()
{
    struct socketbuf *buf;
    int ret;

    while ((buf = ss_out)) {
        ssize_t size = buf->len - buf->offset;
        ret = write_primitive(buf->buf + buf->offset, size, &buf->addr);
        TRACE_MSG("Wrote %d of %zu bytes in an output buffer.\n", ret, size);
        if (ret == size) {
            /* Everything is great, throw away this buffer. */
            ss_out = buf->next;
            free_socketbuf(buf);
        } else if (ret <= 0) {
            /* Handle connection closes and errors. */
            return write_error(ret);
        } else {
            /* We have written more of the partial buffer. */
            buf->offset += ret;
            errno = EWOULDBLOCK;
            enter_congestion(EWOULDBLOCK);
            return -1;
        }
    }

    return 0;
}

/* Write data to a socket. */
int SIPpSocket::write(const char *buffer, ssize_t len, int flags, struct sockaddr_storage *dest)