In mod_proxy_http we have:
/* Prefetch MAX_MEM_SPOOL bytes
*
* This helps us avoid any election of C-L v.s. T-E
* request bodies, since we are willing to keep in
* memory this much data, in any case. This gives
* us an instant C-L election if the body is of some
* reasonable size.
*/
temp_brigade = apr_brigade_create(p, bucket_alloc);
do {
status = ap_get_brigade(r->input_filters, temp_brigade,
AP_MODE_READBYTES, APR_BLOCK_READ,
MAX_MEM_SPOOL - bytes_read);
if (status != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR, status, r->server,
"proxy: prefetch request body failed to %pI (%s)"
" from %s (%s)",
p_conn->addr, p_conn->hostname ? p_conn->hostname: "",
c->remote_ip, c->remote_host ? c->remote_host: "");
return HTTP_BAD_REQUEST;
}
apr_brigade_length(temp_brigade, 1, &bytes);
bytes_read += bytes;
However, I see times when status could be APR_EAGAIN. IMO, it doesn't
make sense to error out here in that case. Right?
