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/* Copyright 2012 10gen Inc.
*
* 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 "mongo/base/initializer.h"
#include <iostream>
#include "mongo/util/assert_util.h"
#include "mongo/base/global_initializer.h"
namespace mongo {
Initializer::Initializer() {}
Initializer::~Initializer() {}
Status Initializer::execute(const InitializerContext::ArgumentVector& args,
const InitializerContext::EnvironmentMap& env) const {
std::vector<std::string> sortedNodes;
Status status = _graph.topSort(&sortedNodes);
if (Status::OK() != status)
return status;
InitializerContext context(args, env);
for (size_t i = 0; i < sortedNodes.size(); ++i) {
InitializerFunction fn = _graph.getInitializerFunction(sortedNodes[i]);
if (!fn) {
return Status(ErrorCodes::InternalError,
"topSort returned a node that has no associated function: \"" +
sortedNodes[i] + '"');
}
try {
status = fn(&context);
} catch( const DBException& xcp ) {
return xcp.toStatus();
}
if (Status::OK() != status)
return status;
}
return Status::OK();
}
Status runGlobalInitializers(const InitializerContext::ArgumentVector& args,
const InitializerContext::EnvironmentMap& env) {
return getGlobalInitializer().execute(args, env);
}
Status runGlobalInitializers(int argc, const char* const* argv, const char* const* envp) {
InitializerContext::ArgumentVector args(argc);
std::copy(argv, argv + argc, args.begin());
InitializerContext::EnvironmentMap env;
if (envp) {
for(; *envp; ++envp) {
const char* firstEqualSign = strchr(*envp, '=');
if (!firstEqualSign) {
return Status(ErrorCodes::BadValue, "malformed environment block");
}
env[std::string(*envp, firstEqualSign)] = std::string(firstEqualSign + 1);
}
}
return runGlobalInitializers(args, env);
}
void runGlobalInitializersOrDie(int argc, const char* const* argv, const char* const* envp) {
Status status = runGlobalInitializers(argc, argv, envp);
if (!status.isOK()) {
std::cerr << "Failed global initialization: " << status << std::endl;
::_exit(1);
}
}
} // namespace mongo
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