ceph/src/common/ContextCompletion.cc

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 #include "common/ContextCompletion.h"
   4
   5 namespace ceph
   6 {
   7
   8 ContextCompletion::ContextCompletion(Context *ctx, bool ignore_enoent)
   9   : m_lock("ceph::ContextCompletion::m_lock"), m_ctx(ctx),
  10     m_ignore_enoent(ignore_enoent), m_ret(0), m_building(true), m_current_ops(0)
  11 {
  12 }
  13
  14 void ContextCompletion::finish_adding_requests() {
  15   bool complete;
  16   {
  17     Mutex::Locker l(m_lock);
  18     m_building = false;
  19     complete = (m_current_ops == 0);
  20   }
  21   if (complete) {
  22     m_ctx->complete(m_ret);
  23     delete this;
  24   }
  25 }
  26
  27 void ContextCompletion::start_op() {
  28   Mutex::Locker l(m_lock);
  29   ++m_current_ops;
  30 }
  31
  32 void ContextCompletion::finish_op(int r) {
  33   bool complete;
  34   {
  35     Mutex::Locker l(m_lock);
  36     if (r < 0 && m_ret == 0 && (!m_ignore_enoent || r != -ENOENT)) {
  37       m_ret = r;
  38     }
  39
  40     --m_current_ops;
  41     complete = (m_current_ops == 0 && !m_building);
  42   }
  43   if (complete) {
  44     m_ctx->complete(m_ret);
  45     delete this;
  46   }
  47 }
  48
  49 } // namespace ceph