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authorAlan Conway <aconway@apache.org>2007-03-21 01:26:37 +0000
committerAlan Conway <aconway@apache.org>2007-03-21 01:26:37 +0000
commit1fb29f138da337b2b318355477b271dcf2fa13ca (patch)
tree2da3d26e35031c6e7b2587b77bc1d2a9460a9a9c /qpid/cpp-0-9/lib/common/sys/apr/APRBase.cpp
parent7ee9b2a933020efadcba42d6200a786321695507 (diff)
downloadqpid-python-1fb29f138da337b2b318355477b271dcf2fa13ca.tar.gz
* cpp-0-9: svn copy of 0-9 branch cpp, will rename to cpp on next update.
* cpp-0-9/gentools: independent copy of gentools for cpp. Temporary measure till /java and /gentools are at 0-9 * python/tests_0-9: tests from 0-9 branch. * python/qpid/testlib.py: Use tests_0-9 with 0-9 spec (default is still 0-8) git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk@520690 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'qpid/cpp-0-9/lib/common/sys/apr/APRBase.cpp')
-rw-r--r--qpid/cpp-0-9/lib/common/sys/apr/APRBase.cpp90
1 files changed, 90 insertions, 0 deletions
diff --git a/qpid/cpp-0-9/lib/common/sys/apr/APRBase.cpp b/qpid/cpp-0-9/lib/common/sys/apr/APRBase.cpp
new file mode 100644
index 0000000000..861071499f
--- /dev/null
+++ b/qpid/cpp-0-9/lib/common/sys/apr/APRBase.cpp
@@ -0,0 +1,90 @@
+/*
+ *
+ * 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.
+ *
+ */
+#include <iostream>
+#include <QpidError.h>
+#include "APRBase.h"
+
+using namespace qpid::sys;
+
+APRBase* APRBase::instance = 0;
+
+APRBase* APRBase::getInstance(){
+ if(instance == 0){
+ instance = new APRBase();
+ }
+ return instance;
+}
+
+
+APRBase::APRBase() : count(0){
+ apr_initialize();
+ CHECK_APR_SUCCESS(apr_pool_create(&pool, 0));
+ CHECK_APR_SUCCESS(apr_thread_mutex_create(&mutex, APR_THREAD_MUTEX_NESTED, pool));
+}
+
+APRBase::~APRBase(){
+ CHECK_APR_SUCCESS(apr_thread_mutex_destroy(mutex));
+ apr_pool_destroy(pool);
+ apr_terminate();
+}
+
+bool APRBase::_increment(){
+ bool deleted(false);
+ CHECK_APR_SUCCESS(apr_thread_mutex_lock(mutex));
+ if(this == instance){
+ count++;
+ }else{
+ deleted = true;
+ }
+ CHECK_APR_SUCCESS(apr_thread_mutex_unlock(mutex));
+ return !deleted;
+}
+
+void APRBase::_decrement(){
+ APRBase* copy = 0;
+ CHECK_APR_SUCCESS(apr_thread_mutex_lock(mutex));
+ if(--count == 0){
+ copy = instance;
+ instance = 0;
+ }
+ CHECK_APR_SUCCESS(apr_thread_mutex_unlock(mutex));
+ if(copy != 0){
+ delete copy;
+ }
+}
+
+void APRBase::increment(){
+ int count = 0;
+ while(count++ < 2 && !getInstance()->_increment()){
+ std::cout << "WARNING: APR initialization triggered concurrently with termination." << std::endl;
+ }
+}
+
+void APRBase::decrement(){
+ getInstance()->_decrement();
+}
+
+std::string qpid::sys::get_desc(apr_status_t status){
+ const int size = 50;
+ char tmp[size];
+ return std::string(apr_strerror(status, tmp, size));
+}
+