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// Copyright (C) 2011-2015 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#include <config.h>
#include <log/message_dictionary.h>
#include <log/message_initializer.h>
#include <algorithm>
#include <cassert>
#include <cstdlib>
namespace {
using namespace isc::log;
/// @brief Returns the shared pointer to the list of pointers to the
/// log messages defined.
///
/// The returned pointer must be held in the \c MessageInitializer object
/// throughout its lifetime to make sure that the object doesn't outlive
/// the list and may still access it in the destructor. The returned
/// pointer is shared between all \c MessageInitializer instances.
LoggerValuesListPtr
getNonConstLoggerValues() {
static LoggerValuesListPtr logger_values(new LoggerValuesList());
return (logger_values);
}
/// @brief Returns the pointer to the list of message duplicates.
///
/// The returned pointer must be held in the \c MessageInitializer object
/// throughout its lifetime to make sure that the object doesn't outlive
/// the list and may still access it in the destructor. The returned
/// pointer is shared between all \c MessageInitializer instances.
LoggerDuplicatesListPtr
getNonConstDuplicates() {
static LoggerDuplicatesListPtr duplicates(new LoggerDuplicatesList());
return (duplicates);
}
} // end unnamed namespace
namespace isc {
namespace log {
MessageInitializer::MessageInitializer(const char* values[])
: values_(values),
global_dictionary_(MessageDictionary::globalDictionary()),
global_logger_values_(getNonConstLoggerValues()),
global_logger_duplicates_(getNonConstDuplicates()) {
global_logger_values_->push_back(values);
}
MessageInitializer::~MessageInitializer() {
// Search for the pointer to pending messages belonging to our instance.
LoggerValuesList::iterator my_messages = std::find(global_logger_values_->begin(),
global_logger_values_->end(),
values_);
bool pending = (my_messages != global_logger_values_->end());
// Our messages are still pending, so let's remove them from the list
// of pending messages.
if (pending) {
global_logger_values_->erase(my_messages);
} else {
// Our messages are not pending, so they might have been loaded to
// the dictionary and/or duplicates.
int i = 0;
while (values_[i]) {
// Check if the unloaded message is registered as duplicate. If it is,
// remove it from the duplicates list.
LoggerDuplicatesList::iterator dup =
std::find(global_logger_duplicates_->begin(),
global_logger_duplicates_->end(),
values_[i]);
if (dup != global_logger_duplicates_->end()) {
global_logger_duplicates_->erase(dup);
} else {
global_dictionary_->erase(values_[i], values_[i + 1]);
}
i += 2;
}
}
}
// Return the number of arrays registered but not yet loaded.
size_t
MessageInitializer::getPendingCount() {
return (getNonConstLoggerValues()->size());
}
// Load the messages in the arrays registered in the logger_values array
// into the global dictionary.
void
MessageInitializer::loadDictionary(bool ignore_duplicates) {
const MessageDictionaryPtr& global = MessageDictionary::globalDictionary();
const LoggerValuesListPtr& logger_values = getNonConstLoggerValues();
for (auto const& values : *logger_values) {
std::vector<std::string> repeats = global->load(values);
// Append the IDs in the list just loaded (the "repeats") to the
// global list of duplicate IDs.
if (!ignore_duplicates && !repeats.empty()) {
const LoggerDuplicatesListPtr& duplicates = getNonConstDuplicates();
duplicates->insert(duplicates->end(), repeats.begin(), repeats.end());
}
}
// ... and mark that the messages have been loaded. (This avoids a lot
// of "duplicate message ID" messages in some of the unit tests where the
// logging initialization code may be called multiple times.)
logger_values->clear();
}
// Return reference to duplicates vector
const std::list<std::string>&
MessageInitializer::getDuplicates() {
return (*getNonConstDuplicates());
}
// Clear the duplicates vector
void
MessageInitializer::clearDuplicates() {
getNonConstDuplicates()->clear();
}
} // namespace log
} // namespace isc
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