Project: engagement_recognition License: BSD Dependencies: engagement_msgs engagement_srvs roscpp Used by: None All Packages

engagement_recognition/src/recognition/logger/file_logger.cpp Go to the documentation of this file. /* * Software License Agreement (BSD License) * * Copyright (c) 2010, Worcester Polytechnic Institute * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials provided * with the distribution. * * Neither the name of Worcester Polytechnic Institute. nor the names * of its contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ // @author Brett Ponsler (bponsler (at) wpi (dot) edu) #include "file_logger.h" #include <ros/ros.h> #include <stdarg.h> #include <stdio.h> #include "../lib/engagement_params.h" // Create the instance of the FileLogger FileLogger *FileLogger::logger_ = NULL; FileLogger::FileLogger() { // Set the directory for the logger this->directory_ = EngagementParams::getLogDirectory(); this->setLogger("[ FLOG]: "); // Create and initialize the mutex memset(&(this->write_mutex_), 0, sizeof(pthread_mutex_t)); pthread_mutex_init(&(this->write_mutex_), NULL); } FileLogger *FileLogger::getInstance() { // Determine if the instance already exists if (FileLogger::logger_ == NULL) { // Does not exists, create it FileLogger::logger_ = new FileLogger(); } // Return the instance return FileLogger::logger_; } void FileLogger::setDirectory(std::string directory) { // Grab the instance of the FileLogger class FileLogger *logger = FileLogger::getInstance(); // Make sure the logger exists if (logger) { // Set the directory for this logger logger->directory_ = std::string(directory); } } int FileLogger::openFile(std::string filename) { // Traverse through all the known filenames for (unsigned c = 0; c < this->filenames_.size(); c++) { // Check to see if this filename already exists if (filenames_.at(c) == filename) return c; } // Create the new file, add the filename, and the file descriptor filenames_.push_back(filename); // Add the path to the file name std::string file_path = this->directory_ + filename; // Create the new file descriptor, and add it to the vector of files FILE *new_file = fopen(file_path.c_str(), "w"); this->files_.push_back(new_file); if (new_file) this->warn("Opened [%s] for logging.", file_path.c_str()); else this->error("Failed to open [%s] for logging.", file_path.c_str()); return this->files_.size() - 1; } void FileLogger::log(std::string filename, std::string output, ...) { // Grab the instance of the logger FileLogger* logger = FileLogger::getInstance(); // Make sure the logger exists if (logger) { // Lock the mutex pthread_mutex_lock(&logger->write_mutex_); // Make sure the filename exists if (filename.size() > 0) { int index = -1; // Traverse the known filenames to see if we can find this filename for (unsigned c = 0; c < logger->filenames_.size(); c++) { // If the filename already exists exit if (logger->filenames_.at(c) == filename) { // Set the index to this filename index = c; break; } } // Make sure the filename was found if (index > -1) { // Grab the file descriptor from the vector FILE *new_file = logger->files_.at(index); // Make sure the file descriptor exists, write to the file if (new_file) { // Grab the list of variable arguments va_list ap; // Print the entire list of variable arguments to the file va_start(ap, output); vfprintf(new_file, output.c_str(), ap); va_end(ap); // Flush the output for the file fflush(new_file); } } else { // Create a new file, and get the index int idx = logger->openFile(filename); // Make sure the index of the new file is valid if (idx >= 0 && idx < (int)logger->files_.size()) { // Grab the file descriptor of the file FILE *new_file = logger->files_.at(idx); // Make sure the file descriptor exists, write to the file if (new_file) { // Grab the list of variable arguments va_list ap; // Print the entire list of variable arguments to the file va_start(ap, output); vfprintf(new_file, output.c_str(), ap); va_end(ap); // Flush the output for the file fflush(new_file); } } } } // Unlock the mutex pthread_mutex_unlock(&logger->write_mutex_); } }

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engagement_recognition
Author(s): Brett Ponsler (bponsler (at) wpi (dot) edu)
autogenerated on Fri Sep 9 10:35:48 2011