262 lines
9.1 KiB
HTML
262 lines
9.1 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<head>
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<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="C++ example: Integrating user-defined transactions into Collection Services" />
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<meta name="abstract" content="This C++ example program shows how to use the Start transaction and End transaction APIs to integrate user-defined transaction performance data into Collection Services." />
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<meta name="description" content="This C++ example program shows how to use the Start transaction and End transaction APIs to integrate user-defined transaction performance data into Collection Services." />
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<meta name="DC.Relation" scheme="URI" content="rzahxcollservusertran.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="rzahxcollservusertranexcplus" />
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<meta name="DC.Language" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>C++ example: Integrating user-defined transactions into Collection
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Services</title>
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</head>
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<body id="rzahxcollservusertranexcplus"><a name="rzahxcollservusertranexcplus"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">C++ example: Integrating user-defined transactions into Collection
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Services</h1>
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<div><p>This C++ example program shows how to use the Start transaction
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and End transaction APIs to integrate user-defined transaction performance
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data into Collection Services.</p>
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<div class="section"><div class="note"><span class="notetitle">Note:</span> By using the code examples, you agree to the terms of the <a href="codedisclaimer.htm">Code license and disclaimer information</a>.</div>
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<pre>//**********************************************************************
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// tnstst.C
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//
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// This example program illustrates the use
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// of the Start/End Transaction APIs (qypeStartTransaction,
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// qypeEndTransaction).
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//
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//
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// This program can be invoked as follows:
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// CALL lib/TNSTST PARM('threads' 'types' 'transactions' 'delay')
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// where
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// threads = number of threads to create (10000 max)
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// types = number of transaction types for each thread
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// transactions = number of transactions for each transaction
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// type
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// delay = delay time (millisecs) between starting and
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// ending the transaction
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//
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// This program will create "threads" number of threads. Each thread
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// will generate transactions in the same way. A thread will do
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// "transactions" number of transactions for each transaction type,
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// where a transaction is defined as a call to Start Transaction API,
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// then a delay of "delay" millisecs, then a call to End Transaction
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// API. Thus, each thread will do a total of "transactions" * "types"
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// number of transactions. Each transaction type will be named
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// "TRANSACTION_TYPE_nnn" where nnn ranges from 001 to "types". For
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// transaction type n, there will be n-1 (16 max) user-provided
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// counters reported, with counter m reporting m counts for each
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// transaction.
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//
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// This program must be run in a job that allows multiple threads
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// (interactive jobs typically do not allow multiple threads). One
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// way to do this is to invoke the program using the SBMJOB command
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// specifying ALWMLTTHD(*YES).
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//
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//**********************************************************************
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#define _MULTI_THREADED
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// Includes
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#include "pthread.h"
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#include "stdio.h"
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#include "stdlib.h"
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#include "string.h"
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#include "qusec.h"
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#include "lbcpynv.h"
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#include "qypesvpg.h"
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// Constants
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#define maxThreads 10000
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// Transaction pgm parm structure
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typedef struct
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{
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int types;
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int trans;
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int delay;
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} tnsPgmParm_t;
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// Error code structure
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typedef struct
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{
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Qus_EC_t error;
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char Exception_Data[100];
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} error_code_t;
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//**********************************************************************
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//
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// Transaction program to run in each secondary thread
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//
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//**********************************************************************
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void *tnsPgm(void *parm)
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{
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tnsPgmParm_t *p = (tnsPgmParm_t *)parm;
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char tnsTyp[] = "TRANSACTION_TYPE_XXX";
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char pexData[] = "PEX";
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unsigned int pexDataL = sizeof(pexData) - 1;
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unsigned long long colSrvData[16] = {1,2,3,4,5,6,7,8,
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9,10,11,12,13,14,15,16};
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unsigned int colSrvDataL;
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char tnsStrTim[8];
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struct timespec ts = {0, 0};
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error_code_t errCode;
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_DPA_Template_T target, source; // Used for LBCPYNV MI instr
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unsigned int typCnt;
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unsigned int tnsCnt;
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int rc;
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// Initialize error code
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memset(&errCode, 0, sizeof(errCode));
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errCode.error.Bytes_Provided = sizeof(errCode);
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// Initialize delay time
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ts.tv_sec = p->delay / 1000;
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ts.tv_nsec = (p->delay % 1000) * 1000000;
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// Loop doing transactions
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for (tnsCnt = 1; tnsCnt <= p->trans; tnsCnt++)
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{
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for (typCnt = 1; typCnt <= p->types; typCnt++)
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{
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// Set number field in transaction type
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source.Type = _T_UNSIGNED;
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source.Length = 4;
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source.reserved = 0;
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target.Type = _T_ZONED;
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target.Length = 3;
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target.reserved = 0;
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_LBCPYNV(tnsTyp + 17, &target, &typCnt, &source);
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// Set Coll Svcs data length in bytes
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colSrvDataL = (typCnt <= 16) ? (typCnt - 1) : 16;
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colSrvDataL = colSrvDataL * 8;
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// Call Start Transaction API
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qypeStartTransaction(tnsTyp,
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(unsigned int *)&tnsCnt,
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pexData,
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(unsigned int *)&pexDataL,
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tnsStrTim,
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&errCode);
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// Delay specified amount
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rc = pthread_delay_np(&ts);
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// Call End Transaction API
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qypeEndTransaction(tnsTyp,
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(unsigned int *)&tnsCnt,
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pexData,
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(unsigned int *)&pexDataL,
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tnsStrTim,
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(unsigned long long *)&colSrvData[0],
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(unsigned int *)&colSrvDataL,
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&errCode);
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}
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}
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return NULL;
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}
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//**********************************************************************
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//
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// Main program to run in primary thread
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//
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//**********************************************************************
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void main(int argc, char *argv[])
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{
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// Integer version of parms
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int threads; // # of threads
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int types; // # of types
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int trans; // # of transactions
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int delay; // Delay in millisecs
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pthread_t threadHandle[maxThreads];
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tnsPgmParm_t tnsPgmParm;
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int rc;
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int i;
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// Verify 4 parms passed
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if (argc != 5)
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{
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printf("Did not pass 4 parms\n");
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return;
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}
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// Copy parms into integer variables
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threads = atoi(argv[1]);
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types = atoi(argv[2]);
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trans = atoi(argv[3]);
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delay = atoi(argv[4]);
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// Verify parms
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if (threads > maxThreads)
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{
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printf("Too many threads requested\n");
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return;
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}
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// Initialize transaction pgm parms (do not modify
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// these while threads are running)
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tnsPgmParm.types = types;
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tnsPgmParm.trans = trans;
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tnsPgmParm.delay = delay;
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// Create threads that will run transaction pgm
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for (i=0; i < threads; i++)
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{
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// Clear thread handle
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memset(&threadHandle[i], 0, sizeof(pthread_t));
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// Create thread
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rc = pthread_create(&threadHandle[i], // Thread handle
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NULL, // Default attributes
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tnsPgm, // Start routine
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(void *)&tnsPgmParm); // Start routine parms
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if (rc != 0)
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printf("pthread_create() failed, rc = %d\n", rc);
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}
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// Wait for each thread to terminate
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for (i=0; i < threads; i++)
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{
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rc=pthread_join(threadHandle[i], // Thread handle
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NULL); // No exit status
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}
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} /* end of Main */</pre>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzahxcollservusertran.htm" title="Collection Services and performance explorer collect performance data that you define in your applications.">User-defined transactions</a></div>
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</div>
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</div>
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</body>
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</html>
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