ceph/src/msg/xio/XioMsg.cc

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 /*
   4  * Ceph - scalable distributed file system
   5  *
   6  * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
   7  * Portions Copyright (C) 2013 CohortFS, LLC
   8  *
   9  * This is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License version 2.1, as published by the Free Software
  12  * Foundation.  See file COPYING.
  13  *
  14  */
  15
  16 #include "XioMessenger.h"
  17 #include "XioConnection.h"
  18 #include "XioMsg.h"
  19
  20
  21 int XioDispatchHook::release_msgs()
  22 {
  23   XioCompletion *xcmp;
  24   int r = msg_seq.size();
  25   cl_flag = true;
  26
  27   /* queue for release */
  28   xcmp = static_cast<XioCompletion *>(rsp_pool.alloc(sizeof(XioCompletion)));
  29   new (xcmp) XioCompletion(xcon, this);
  30   xcmp->trace = m->trace;
  31
  32   /* merge with portal traffic */
  33   xcon->portal->enqueue(xcon, xcmp);
  34
  35   assert(r);
  36   return r;
  37 }
  38
  39 /*static*/ size_t XioMsgHdr::get_max_encoded_length() {
  40   ceph_msg_header _ceph_msg_header;
  41   ceph_msg_footer _ceph_msg_footer;
  42   XioMsgHdr hdr (_ceph_msg_header, _ceph_msg_footer, 0 /* features */);
  43   const std::list<buffer::ptr>& hdr_buffers = hdr.get_bl().buffers();
  44   assert(hdr_buffers.size() == 1); /* accelio header is small without scatter gather */
  45   return hdr_buffers.begin()->length();
  46 }
  47
  48 void XioMsg::print_debug(CephContext *cct, const char *tag) const {
  49   print_xio_msg_hdr(cct, tag, hdr, get_xio_msg());
  50   print_ceph_msg(cct, tag, m);
  51 }