static ssize_t net_chanel_queue_write_to_net(net_chanel_t bc, int fd) {
struct net_chanel_queue * chanel;
ssize_t send_size;
assert(bc);
assert(bc->m_type == &s_net_chanel_type_queue);
chanel = (struct net_chanel_queue *)bc;
if (chanel->m_size == 0) return 0;
send_size = cpe_send(fd, chanel->m_buf, chanel->m_size, 0);
if (send_size < 0) return send_size;
if (send_size != chanel->m_size) {
memmove(chanel->m_buf, chanel->m_buf + send_size, chanel->m_size - send_size);
chanel->m_size -= send_size;
}
else {
chanel->m_size = 0;
}
chanel->m_state = net_chanel_queue_calac_state(chanel);
return send_size;
}
/** Process send queue head, associated with socket/event pfd.
* Perform synchronization on the pollfd associated with the queue (disables
* POLLOUT if queue is empty).
*
* @remark Memory management (allocation and deallocation) must be done by
* the caller of cpe_send_enqueue().
*/
apr_status_t
cpe_sender(cpe_network_ctx *nctx)
{
cpe_io_buf *sendbuf;
apr_size_t howmany;
apr_status_t rv;
cpe_queue_t *head;
cpe_log(CPE_DEB, "%s", "enter");
head = nctx->nc_sendQ;
if (head->cq_next == NULL) {
cpe_log(CPE_DEB, "queue %p (socket %p) is empty, disabling POLLOUT",
head, head->cq_pfd->desc.s);
rv = cpe_pollset_update(head->cq_pfd,
head->cq_pfd->reqevents & ~APR_POLLOUT);
assert(rv == APR_SUCCESS);
return rv;
}
sendbuf = head->cq_next;
howmany = sendbuf->buf_len;
assert(howmany > 0);
rv = cpe_send(head->cq_pfd->desc.s, sendbuf, &howmany);
/* XXX what to do with rv ? */
head->cq_total_sent += howmany;
if (sendbuf->buf_offset == sendbuf->buf_len) {
head->cq_nelems--;
sendbuf->inqueue = 0;
sendbuf->buf_offset = 0;
cpe_log(CPE_DEB,
"buffer %p (on queue %p, nelems %d, socket %p) completely sent",
sendbuf, head, head->cq_nelems, head->cq_pfd->desc.s);
/* Update queue to next buffer to send; remove buffer from queue.
*/
if (sendbuf->next != NULL) {
head->cq_next = sendbuf->next;
sendbuf->next = NULL;
} else {
head->cq_next = NULL;
}
if (sendbuf->destroy) {
cpe_log(CPE_DEB, "%s", "iobuf marked to be destroyed");
cpe_iobuf_destroy(&sendbuf, nctx);
}
}
return APR_SUCCESS;
}
