From 6c24486bbc4ffcf8c70e7d0fbac846512c83b440 Mon Sep 17 00:00:00 2001
From: Alan Conway <aconway@apache.org>
Date: Thu, 11 Sep 2008 13:26:10 +0000
Subject: Moved PollableCondition, PollableQueue and to sys. Fixed cluster
 shutdown issues.

sys/PollableCondition: is a generic mechansim to poll for non-IO
events in the Poller.

sys/PollableQueue: is a thread-safe queue template that can be
dispatched from the Poller when there are items on the queue. It uses
PollableCondition.


git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@694243 13f79535-47bb-0310-9956-ffa450edef68
---
 cpp/src/qpid/cluster/PollableCondition.cpp | 100 -----------------------------
 1 file changed, 100 deletions(-)
 delete mode 100644 cpp/src/qpid/cluster/PollableCondition.cpp

(limited to 'cpp/src/qpid/cluster/PollableCondition.cpp')

diff --git a/cpp/src/qpid/cluster/PollableCondition.cpp b/cpp/src/qpid/cluster/PollableCondition.cpp
deleted file mode 100644
index eecf95ff8d..0000000000
--- a/cpp/src/qpid/cluster/PollableCondition.cpp
+++ /dev/null
@@ -1,100 +0,0 @@
-#ifndef QPID_SYS_LINUX_POLLABLECONDITION_CPP
-#define QPID_SYS_LINUX_POLLABLECONDITION_CPP
-
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- * 
- *   http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-
-// FIXME aconway 2008-08-11: this could be of more general interest,
-// move to common lib.
-// 
-
-#include "qpid/sys/posix/PrivatePosix.h"
-#include "qpid/cluster/PollableCondition.h"
-#include "qpid/Exception.h"
-
-#include <unistd.h>
-#include <fcntl.h>
-
-namespace qpid {
-namespace cluster {
-
-PollableCondition::PollableCondition() : IOHandle(new sys::IOHandlePrivate) {
-    int fds[2];
-    if (::pipe(fds) == -1)
-        throw ErrnoException(QPID_MSG("Can't create PollableCondition"));
-    impl->fd = fds[0];
-    writeFd = fds[1];
-    if (::fcntl(impl->fd, F_SETFL, O_NONBLOCK) == -1)
-        throw ErrnoException(QPID_MSG("Can't create PollableCondition"));
-    if (::fcntl(writeFd, F_SETFL, O_NONBLOCK) == -1)
-        throw ErrnoException(QPID_MSG("Can't create PollableCondition"));
-}
-
-bool PollableCondition::clear() {
-    char buf[256];
-    ssize_t n;
-    bool wasSet = false;
-    while ((n = ::read(impl->fd, buf, sizeof(buf))) > 0) 
-        wasSet = true;
-    if (n == -1 && errno != EAGAIN) throw ErrnoException(QPID_MSG("Error clearing PollableCondition"));
-    return wasSet;
-}
-
-void PollableCondition::set() {
-    static const char dummy=0;
-    ssize_t n = ::write(writeFd, &dummy, 1);
-    if (n == -1 && errno != EAGAIN) throw ErrnoException("Error setting PollableCondition");
-}
-
-
-#if 0
-// FIXME aconway 2008-08-12: More efficient Linux implementation using
-// eventfd system call.  Do a configure.ac test to enable this when
-// eventfd is available.
-
-#include <sys/eventfd.h>
-
-namespace qpid {
-namespace cluster {
-
-PollableCondition::PollableCondition() : IOHandle(new sys::IOHandlePrivate) {
-    impl->fd = ::eventfd(0, 0);
-    if (impl->fd < 0) throw ErrnoException("conditionfd() failed");
-}
-
-bool PollableCondition::clear() {
-    char buf[8];
-    ssize_t n = ::read(impl->fd, buf, 8);
-    if (n != 8) throw ErrnoException("read failed on conditionfd");
-    return *reinterpret_cast<uint64_t*>(buf);
-}
-
-void PollableCondition::set() {
-    static const uint64_t value=1;
-    ssize_t n = ::write(impl->fd, reinterpret_cast<const void*>(&value), 8);
-    if (n != 8) throw ErrnoException("write failed on conditionfd");
-}
-    
-#endif
-
-}} // namespace qpid::cluster
-
-#endif  /*!QPID_SYS_LINUX_POLLABLECONDITION_CPP*/
-- 
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