/*---------------------------------------------------------------  * Copyright (c) 1999,2000,2001,2002,2003                               * The Board of Trustees of the University of Illinois             * All Rights Reserved.                                            *---------------------------------------------------------------  * Permission is hereby granted, free of charge, to any person     * obtaining a copy of this software (Iperf) and associated        * documentation files (the "Software"), to deal in the Software   * without restriction, including without limitation the           * rights to use, copy, modify, merge, publish, distribute,         * sublicense, and/or sell copies of the Software, and to permit      * persons to whom the Software is furnished to do * so, subject to the following conditions:  * *      * Redistributions of source code must retain the above  * copyright notice, this list of conditions and  * the following disclaimers.  * *      * Redistributions in binary form must reproduce the above  * copyright notice, this list of conditions and the following  * disclaimers in the documentation and/or other materials  * provided with the distribution.  *  *      * Neither the names of the University of Illinois, NCSA,  * nor the names of its contributors may be used to endorse  * or promote products derived from this Software without * specific prior written permission.  *  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES  * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND  * NONINFRINGEMENT. IN NO EVENT SHALL THE CONTIBUTORS OR COPYRIGHT  * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  * ________________________________________________________________ * National Laboratory for Applied Network Research  * National Center for Supercomputing Applications  * University of Illinois at Urbana-Champaign  * http://www.ncsa.uiuc.edu * ________________________________________________________________  * * util.h * by Mark Gates <mgates@nlanr.net> * ------------------------------------------------------------------- * various C utility functions. * ------------------------------------------------------------------- */#ifndef UTIL_H#define UTIL_H#ifdef HAVE_CONFIG_H    #include "config.h"#endif#ifdef __cplusplusextern "C" {#endif/* ------------------------------------------------------------------- * set/getsockopt wrappers for SO_RCVBUF and SO_SNDBUF; TCP_MAXSEG * socket.c * ------------------------------------------------------------------- */int setsock_tcp_windowsize( int inSock, int inTCPWin, int inSend );int getsock_tcp_windowsize( int inSock, int inSend );void setsock_tcp_mss( int inSock, int inTCPWin );int  getsock_tcp_mss( int inSock );/* ------------------------------------------------------------------- * signal handlers * signal.c * ------------------------------------------------------------------- */typedef void Sigfunc(int);void sig_exit( int inSigno );typedef Sigfunc *SigfuncPtr;SigfuncPtr my_signal( int inSigno, SigfuncPtr inFunc );#ifdef WIN32/* under windows, emulate unix signals */enum {    SIGINT,    SIGTERM,    SIGPIPE,    _NSIG};BOOL WINAPI sig_dispatcher( DWORD type );#endif/* ------------------------------------------------------------------- * error handlers * error.c * ------------------------------------------------------------------- */void warn      ( const char *inMessage, const char *inFile, int inLine );void warn_errno( const char *inMessage, const char *inFile, int inLine );#if defined( HAVE_POSIX_THREAD ) || defined( HAVE_WIN32_THREAD)#define FAIL( cond, msg, settings )             \  do {                                          \    if ( cond ) {                               \      warn( msg, __FILE__, __LINE__ );          \      thread_stop(settings);                    \    }                                           \  } while( 0 )#else#define FAIL( cond, msg, settings )             \  do {                                          \    if ( cond ) {                               \      warn( msg, __FILE__, __LINE__ );          \      exit( 1 );                                \    }                                           \  } while( 0 )#endif#define WARN( cond, msg )                       \  do {                                          \    if ( cond ) {                               \      warn( msg, __FILE__, __LINE__ );          \    }                                           \  } while( 0 )#if defined( HAVE_POSIX_THREAD ) || defined( HAVE_WIN32_THREAD)#define FAIL_errno( cond, msg, settings )       \  do {                                          \    if ( cond ) {                               \      warn_errno( msg, __FILE__, __LINE__ );    \      thread_stop(settings);                    \    }                                           \  } while( 0 )#else#define FAIL_errno( cond, msg, settings )       \  do {                                          \    if ( cond ) {                               \      warn_errno( msg, __FILE__, __LINE__ );    \      exit( 1 );                                \    }                                           \  } while( 0 )#endif#define WARN_errno( cond, msg )                 \  do {                                          \    if ( cond ) {                               \      warn_errno( msg, __FILE__, __LINE__ );    \    }                                           \  } while( 0 )/* ------------------------------------------------------------------- * initialize buffer to a pattern * ------------------------------------------------------------------- */void pattern( char *outBuf, int inBytes );/* ------------------------------------------------------------------- * input and output numbers, converting with kilo, mega, giga * stdio.c * ------------------------------------------------------------------- */double byte_atof( const char *inString );max_size_t byte_atoi( const char  *inString );void byte_snprintf( char* outString, int inLen, double inNum, char inFormat );/* ------------------------------------------------------------------- * redirect the stdout to a specified file * stdio.c * ------------------------------------------------------------------- */void redirect(const char *inOutputFileName);/* ------------------------------------------------------------------- * delete macro * ------------------------------------------------------------------- */#define DELETE_PTR( ptr )                       \  do {                                          \    if ( ptr != NULL ) {                        \      delete ptr;                               \      ptr = NULL;                               \    }                                           \  } while( false )#define DELETE_ARRAY( ptr )                     \  do {                                          \    if ( ptr != NULL ) {                        \      delete [] ptr;                            \      ptr = NULL;                               \    }                                           \  } while( false )#ifdef __cplusplus} /* end extern "C" */#endif#endif /* UTIL_H */