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-rw-r--r--cpp/lib/common/sys/ProducerConsumer.cpp141
1 files changed, 0 insertions, 141 deletions
diff --git a/cpp/lib/common/sys/ProducerConsumer.cpp b/cpp/lib/common/sys/ProducerConsumer.cpp
deleted file mode 100644
index 7a0249f666..0000000000
--- a/cpp/lib/common/sys/ProducerConsumer.cpp
+++ /dev/null
@@ -1,141 +0,0 @@
-/*
- *
- * Copyright (c) 2006 The Apache Software Foundation
- *
- * Licensed 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.
- *
- */
-
-
-#include "QpidError.h"
-#include "ScopedIncrement.h"
-#include "ProducerConsumer.h"
-
-namespace qpid {
-namespace sys {
-
-// // ================ ProducerConsumer
-
-ProducerConsumer::ProducerConsumer(size_t init_items)
- : items(init_items), waiters(0), shutdownFlag(false)
-{}
-
-void ProducerConsumer::shutdown() {
- Mutex::ScopedLock l(monitor);
- shutdownFlag = true;
- monitor.notifyAll();
- // Wait for waiting consumers to wake up.
- while (waiters > 0)
- monitor.wait();
-}
-
-size_t ProducerConsumer::available() const {
- Mutex::ScopedLock l(monitor);
- return items;
-}
-
-size_t ProducerConsumer::consumers() const {
- Mutex::ScopedLock l(monitor);
- return waiters;
-}
-
-// ================ Lock
-
-ProducerConsumer::Lock::Lock(ProducerConsumer& p)
- : pc(p), lock(p.monitor), status(INCOMPLETE) {}
-
-bool ProducerConsumer::Lock::isOk() const {
- return !pc.isShutdown() && status==INCOMPLETE;
-}
-
-void ProducerConsumer::Lock::checkOk() const {
- assert(!pc.isShutdown());
- assert(status == INCOMPLETE);
-}
-
-ProducerConsumer::Lock::~Lock() {
- assert(status != INCOMPLETE || pc.isShutdown());
-}
-
-void ProducerConsumer::Lock::confirm() {
- checkOk();
- status = CONFIRMED;
-}
-
-void ProducerConsumer::Lock::cancel() {
- checkOk();
- status = CANCELLED;
-}
-
-// ================ ProducerLock
-
-ProducerConsumer::ProducerLock::ProducerLock(ProducerConsumer& p) : Lock(p)
-{}
-
-
-ProducerConsumer::ProducerLock::~ProducerLock() {
- if (status == CONFIRMED) {
- pc.items++;
- pc.monitor.notify(); // Notify a consumer.
- }
-}
-
-// ================ ConsumerLock
-
-ProducerConsumer::ConsumerLock::ConsumerLock(ProducerConsumer& p) : Lock(p)
-{
- if (isOk()) {
- ScopedIncrement<size_t> inc(pc.waiters);
- while (pc.items == 0 && !pc.shutdownFlag) {
- pc.monitor.wait();
- }
- }
-}
-
-ProducerConsumer::ConsumerLock::ConsumerLock(
- ProducerConsumer& p, const Time& timeout) : Lock(p)
-{
- if (isOk()) {
- // Don't wait if timeout==0
- if (timeout == 0) {
- if (pc.items == 0)
- status = TIMEOUT;
- return;
- }
- else {
- Time deadline = now() + timeout;
- ScopedIncrement<size_t> inc(pc.waiters);
- while (pc.items == 0 && !pc.shutdownFlag) {
- if (!pc.monitor.wait(deadline)) {
- status = TIMEOUT;
- return;
- }
- }
- }
- }
-}
-
-ProducerConsumer::ConsumerLock::~ConsumerLock() {
- if (pc.isShutdown()) {
- if (pc.waiters == 0)
- pc.monitor.notifyAll(); // Notify shutdown thread(s)
- }
- else if (status==CONFIRMED) {
- pc.items--;
- if (pc.items > 0)
- pc.monitor.notify(); // Notify another consumer.
- }
-}
-
-
-}} // namespace qpid::sys