| /* |
| * 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. |
| */ |
| #define __STDC_CONSTANT_MACROS |
| #include <log4cxx/logstring.h> |
| #include <log4cxx/helpers/filewatchdog.h> |
| #include <log4cxx/helpers/loglog.h> |
| #include <apr_time.h> |
| #include <apr_thread_proc.h> |
| #include <apr_atomic.h> |
| #include <log4cxx/helpers/transcoder.h> |
| #include <log4cxx/helpers/exception.h> |
| |
| using namespace log4cxx; |
| using namespace log4cxx::helpers; |
| |
| long FileWatchdog::DEFAULT_DELAY = 60000; |
| |
| #if APR_HAS_THREADS |
| |
| FileWatchdog::FileWatchdog(const File& file1) |
| : file(file1), delay(DEFAULT_DELAY), lastModif(0), |
| warnedAlready(false), interrupted(0), thread() |
| { |
| } |
| |
| FileWatchdog::~FileWatchdog() |
| { |
| apr_atomic_set32(&interrupted, 0xFFFF); |
| |
| try |
| { |
| thread.interrupt(); |
| thread.join(); |
| } |
| catch (Exception&) |
| { |
| } |
| } |
| |
| void FileWatchdog::checkAndConfigure() |
| { |
| Pool pool1; |
| |
| if (!file.exists(pool1)) |
| { |
| if (!warnedAlready) |
| { |
| LogLog::debug(((LogString) LOG4CXX_STR("[")) |
| + file.getPath() |
| + LOG4CXX_STR("] does not exist.")); |
| warnedAlready = true; |
| } |
| } |
| else |
| { |
| apr_time_t thisMod = file.lastModified(pool1); |
| |
| if (thisMod > lastModif) |
| { |
| lastModif = thisMod; |
| doOnChange(); |
| warnedAlready = false; |
| } |
| } |
| } |
| |
| void* APR_THREAD_FUNC FileWatchdog::run(apr_thread_t* /* thread */, void* data) |
| { |
| FileWatchdog* pThis = (FileWatchdog*) data; |
| |
| unsigned int interrupted = apr_atomic_read32(&pThis->interrupted); |
| |
| while (!interrupted) |
| { |
| try |
| { |
| Thread::sleep(pThis->delay); |
| pThis->checkAndConfigure(); |
| } |
| catch (InterruptedException&) |
| { |
| interrupted = apr_atomic_read32(&pThis->interrupted); |
| } |
| } |
| |
| return NULL; |
| } |
| |
| void FileWatchdog::start() |
| { |
| checkAndConfigure(); |
| |
| thread.run(run, this); |
| } |
| |
| #endif |