00001 /* 00002 * SysUtil.h : part of the Mace toolkit for building distributed systems 00003 * 00004 * Copyright (c) 2007, Charles Killian, Dejan Kostic, Ryan Braud, James W. Anderson, John Fisher-Ogden, Calvin Hubble, Duy Nguyen, Justin Burke, David Oppenheimer, Amin Vahdat, Adolfo Rodriguez, Sooraj Bhat 00005 * All rights reserved. 00006 * 00007 * Redistribution and use in source and binary forms, with or without 00008 * modification, are permitted provided that the following conditions are met: 00009 * 00010 * * Redistributions of source code must retain the above copyright 00011 * notice, this list of conditions and the following disclaimer. 00012 * * Redistributions in binary form must reproduce the above copyright 00013 * notice, this list of conditions and the following disclaimer in 00014 * the documentation and/or other materials provided with the 00015 * distribution. 00016 * * Neither the names of Duke University nor The University of 00017 * California, San Diego, nor the names of the authors or contributors 00018 * may be used to endorse or promote products derived from 00019 * this software without specific prior written permission. 00020 * 00021 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00022 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00023 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00024 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE 00025 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00026 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 00027 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 00028 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 00029 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 00030 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00031 * 00032 * ----END-OF-LEGAL-STUFF---- */ 00033 #include <stdint.h> 00034 #include "maceConfig.h" 00035 // #include <signal.h> 00036 // #include <unistd.h> 00037 #include <sys/time.h> 00038 #include <sys/types.h> 00039 #include "m_net.h" 00040 // #include <cstring> 00041 // #include <cstdlib> 00042 // #include <cassert> 00043 // #include <cerrno> 00044 // #include <cstdio> 00045 00046 #ifndef SYS_UTIL_H 00047 #define SYS_UTIL_H 00048 00054 // sighandler_t is a GNU extension, define here for Cygwin 00055 typedef void (*sighandler_t)(int); 00056 00062 00063 class SysUtil { 00064 public: 00080 static int select(int max = 0, fd_set* rfs = 0, fd_set* wfs = 0, fd_set* efs = 0, 00081 struct timeval* timeout = 0, bool restartOnEINTR = true); 00083 static int select(int max, fd_set* rfs, fd_set* wfs, fd_set* efs, uint64_t timeout, bool restartOnEINTR = true); 00084 00086 static sighandler_t signal(int signum, sighandler_t handler, bool warn = true); 00087 00089 static void sleep(time_t sec = 0, useconds_t usec = 0); 00091 static void sleepu(uint64_t usec); 00093 static void sleepm(useconds_t msec) { sleep(0, msec * 1000); } 00094 }; // SysUtil 00095 00098 #endif // SYS_UTIL_H