Hi, thank you for taking your previous time to read the following
problem that I face.
I'm trying to create multiple child process and TESTCODE 1 work fine,
however if I try to connect to MYSQL (TESTCODE 2) before calling the
subroutine "testmail2" , I would never get the expected result. I would
appreciate if anyone would be so kind to help me solve the problem or
suggest an alternative solutions. My objective is to create mutiple
child process using the data pull-out from the MYSQL.
Thanks.
Michael
TESTCODE 1
===========
@names=("Sandy" , "Sally", "Sarah", "Sue","imgoingc razy","WHYYYYYY Y");
&testmail2(@nam es);
sub testmail2
{
#databae,conten t,mailing counter
my @sqlarray = @_;
my $item;
my $cpro=0;
my $arraylen = int @sqlarray;
foreach $item(@sqlarray )
{
my $cpid = fork();
die unless defined $cpid;
if (! $cpid)
{
print "$item<br>\ n";
srand();
sleep(int rand(1) + 1);
exit(0);
}
}
#wait for all child process ended
while ((my $cpid = wait()) != -1)
{
$cpro++;
if($cpro >=$arraylen)
{
print "Proceeding to next mailing. Please Wait<br>\n";
last;
}
else
{
print " Entered $cpro<br>";
}
}
return 1;
}
Good result 1
==============
Sandy
Sally
Sarah
Sue
imgoingcrazy
WHYYYYYYY
Entered 1
Entered 2
Entered 3
Entered 4
Entered 5
Proceeding to next mailing. Please Wait
TESTCODE 2
===========
my $dbh = &db_connect($ds n, $user, $password,{Inac tiveDestroy=>1} );
my $sth = $dbh->prepare ("SELECT * FROM $table");
$sth->execute() || quit();
my $hashref;
my $tmpstring;
while ($hashref = $sth->fetchrow_hashr ef())
{
$tmpstring = "$hashref->{'name'}";
print $tmpstring;
}
$sth->finish();
$dbh->disconnect;
@names=("Sandy" , "Sally", "Sarah", "Sue","imgoingc razy","WHYYYYYY Y");
&testmail2(@nam es);
Fail result 2
=============
Sandy
Sally
Sarah
Sue
imgoingcrazy
WHYYYYYYY
DBI Handle has 1 uncleared child handles. Attempt to free non-existent
shared string. Attempt to free non-existent shared string. Attempt to
free non-existent shared string. Attempt to free non-existent shared
string. dbih_clearcom (h 0x1f35e2c, com 0x352263c): FLAGS 0x11: COMSET
Warn TYPE 2 PARENT DBI::dr=HASH(0x 1f35e5c) KIDS 1 (0 Active) IMP_DATA
HASH(0x1f35d6c) in 'DBD::mysql::db ' Attempt to free non-existent
shared string during global destruction.
Entered 1 0 1842 This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
by: Stephen Ferg |
last post by:
Seen in the Wall Street Journal, Monday, July 21, 2003, page B1.
Lee Gomes' "Portals" technology column: "Two Men, Two Ways to Speak
Computerese and Two Big Successes".
This is a brief, non-technical story on Guido von Rossum, inventor of
Python, and Larry Wall, inventor of Perl.
I don't think this is available online unless you are a paid
subscriber to the WSJ online edition. So here are a few quick quotes
|
by: Bart Nessux |
last post by:
Just fooling around this weekend. Wrote and timed programs in C, Perl and
Python. Each Program counts to 1,000,000 and prints each number to the
console as it counts. I was a bit surprised. I'm not an expert C or Perl
programming expery, I'm most familiar with Python, but can use the others
as well.
Here are my results:
C = 23 seconds
Python = 26.5 seconds
|
by: Xah Lee |
last post by:
# -*- coding: utf-8 -*-
# Python
# to open a file and write to file
# do
f=open('xfile.txt','w')
# this creates a file "object" and name it f.
# the second argument of open can be
|
by: dohnut |
last post by:
Here's one for some bored problem solver :)
I ran across this earlier today and fixed it, but don't exactly know
why. (that usually only happens in C :)
I'm using Perl version 5.8.0 btw.
Ok, let's start here: I end up with an array that comes from a
fetchrow_array() call to MySQL. I return the array to a function.
|
by: Marty Meyers |
last post by:
I have the following line in a php file:
$msg= exec("perl $scriptPath/insert.pl $d $u $t 2>&1", $returnVal);
Can someone explain the "2>&1" argument?
Second problem, this same line of code when run from the unix command line
returns the following error:
| |
by: fritz-bayer |
last post by:
Hello,
I'm porting a program from php to perl and discovered, that the bitwise
operator & seems to work differently, which I don't understand why.
I tested it with the values:
a=5543039447 and b=13
Then in perl the expressions:
|
by: byrapaneni |
last post by:
Hello all;
I gathered information from this and several other groups to write a
perl & cgi script to display a pdf document. My script works partially
and found an issue when testing.
Here is my script:
===============================================================
#!/bin/perl
use CGI qw(:standard *table);
|
by: jonathan184 |
last post by:
The code seems to be working fine for some records but I am thinking it is finding some other records with special characters and so on. I am looking for a way to insert the xml string with escaping a bunch of chars
This is the message i got
DBD::mysql::st execute failed: You have an error in your SQL syntax; check the manual that corresponds to your M
ySQL server version for the right syntax to use near 'd to test@email.com...
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
| |
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
|
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
|
by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
| |