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/*
*
* 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 "config.h"
#include "qpid/Modules.h"
#include "qpid/Exception.h"
#include "qpid/log/Statement.h"
#include "qpid/sys/Shlib.h"
#include <boost/filesystem/operations.hpp>
#include <boost/filesystem/path.hpp>
namespace fs=boost::filesystem;
namespace {
// CMake sets QPID_MODULE_SUFFIX; Autoconf doesn't, so assume Linux .so
#ifndef QPID_MODULE_SUFFIX
#define QPID_MODULE_SUFFIX ".so"
#endif
inline std::string& suffix() {
static std::string s(QPID_MODULE_SUFFIX);
return s;
}
bool isShlibName(const std::string& name) {
return name.find (suffix()) == name.length() - suffix().length();
}
}
namespace qpid {
ModuleOptions::ModuleOptions(const std::string& defaultModuleDir)
: qpid::Options("Module options"), loadDir(defaultModuleDir), noLoad(false)
{
addOptions()
("module-dir", optValue(loadDir, "DIR"), "Load all shareable modules in this directory")
("load-module", optValue(load, "FILE"), "Specifies additional module(s) to be loaded")
("no-module-dir", optValue(noLoad), "Don't load modules from module directory");
}
void tryShlib(const char* libname_, bool noThrow) {
std::string libname(libname_);
if (!isShlibName(libname)) libname += suffix();
try {
sys::Shlib shlib(libname);
}
catch (const std::exception& /*e*/) {
if (!noThrow)
throw;
}
}
void loadModuleDir (std::string dirname, bool isDefault)
{
fs::path dirPath (dirname, fs::native);
if (!fs::exists (dirPath))
{
if (isDefault)
return;
throw Exception ("Directory not found: " + dirname);
}
if (!fs::is_directory(dirPath))
{
throw Exception ("Invalid value for module-dir: " + dirname + " is not a directory");
}
fs::directory_iterator endItr;
for (fs::directory_iterator itr (dirPath); itr != endItr; ++itr)
{
if (!fs::is_directory(*itr) && isShlibName(itr->string()))
tryShlib (itr->string().data(), true);
}
}
} // namespace qpid
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