From 7c720bec5600a9e607c875c670ca30ed351fa4ba Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 15 Apr 2024 20:20:54 +0200 Subject: Adding upstream version 2.1.9+dfsg. Signed-off-by: Daniel Baumann --- src/Extractor.c | 188 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 188 insertions(+) create mode 100644 src/Extractor.c (limited to 'src/Extractor.c') diff --git a/src/Extractor.c b/src/Extractor.c new file mode 100644 index 0000000..4678018 --- /dev/null +++ b/src/Extractor.c @@ -0,0 +1,188 @@ +/*--------------------------------------------------------------- + * 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 + * ________________________________________________________________ + * Extractor.cpp + * by Ajay Tirumala (tirumala@ncsa.uiuc.edu) + * ------------------------------------------------------------------- + * Extract data from a file, used to measure the transfer rates + * for various stream formats. + * + * E.g. Use a gzipped file to measure the transfer rates for + * compressed data + * Use an MPEG file to measure the transfer rates of + * Multimedia data formats + * Use a plain BMP file to measure the transfer rates of + * Uncompressed data + * + * This is beneficial especially in measuring bandwidth across WAN + * links where data compression takes place before data transmission + * ------------------------------------------------------------------- + */ + +#include "Extractor.h" + + +/** + * Constructor + * @arg fileName Name of the file + * @arg size Block size for reading + * Open the file and set the block size + */ +void Extractor_Initialize ( char *fileName, int inSize, struct thread_Settings *mSettings ) { + + if ( (mSettings->Extractor_file = fopen (fileName, "rb")) == NULL ) { + fprintf( stderr, "Unable to open the file stream\n"); + fprintf( stderr, "Will use the default data stream\n"); + return; + } + mSettings->Extractor_size = inSize; +} + + +/** + * Constructor + * @arg fp File Pointer + * @arg size Block size for reading + * Set the block size,file pointer + */ +void Extractor_InitializeFile ( FILE *fp, int inSize, struct thread_Settings *mSettings ) { + mSettings->Extractor_file = fp; + mSettings->Extractor_size = inSize; +} + + +/** + * Destructor - Close the file + */ +void Extractor_Destroy ( struct thread_Settings *mSettings ) { + if ( mSettings->Extractor_file != NULL ) + fclose( mSettings->Extractor_file ); +} + + +/* + * Fetches the next data block from + * the file + * @arg block Pointer to the data read + * @return Number of bytes read + */ +int Extractor_getNextDataBlock ( char *data, struct thread_Settings *mSettings ) { + if ( Extractor_canRead( mSettings ) ) { + return(fread( data, 1, mSettings->Extractor_size, + mSettings->Extractor_file )); + } + return 0; +} + +/** + * Function which determines whether + * the file stream is still readable + * @return boolean true, if readable; false, if not + */ +int Extractor_canRead ( struct thread_Settings *mSettings ) { + return(( mSettings->Extractor_file != NULL ) + && !(feof( mSettings->Extractor_file ))); +} + +/** + * This is used to reduce the read size + * Used in UDP transfer to accomodate the + * the header (timestamp) + * @arg delta Size to reduce + */ +void Extractor_reduceReadSize ( int delta, struct thread_Settings *mSettings ) { + mSettings->Extractor_size -= delta; +} + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + -- cgit v1.2.3