/*
   +----------------------------------------------------------------------+
   | HipHop for PHP                                                       |
   +----------------------------------------------------------------------+
   | Copyright (c) 2010-2013 Facebook, Inc. (http://www.facebook.com)     |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | http://www.php.net/license/3_01.txt                                  |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
*/

#include "hphp/util/rank.h"
#include "hphp/util/base.h"
#include "hphp/runtime/vm/pendq.h"

namespace HPHP {

static __thread PendQ* tl_q;

void PendQ::defer(DeferredWorkItem* i) {
  if (!tl_q) {
    tl_q = new PendQ();
  }
  tl_q->push(i);
}

void PendQ::drain() {
  assert(currentRank() == RankBase); // Call from base rank.
  while (tl_q && !tl_q->empty()) {
    DeferredWorkItem* i = tl_q->front();
    tl_q->pop();
    (*i)();
    assert(currentRank() == RankBase); // Don't hold locks.
    delete i;
  }
}

}