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by: Daniel Brunthaler |
last post by:
hi,
i've a problem with file locking.
seems that flock() and gzopen() do not work together. i get the error (or
warning) message ...
Warning: flock(): cannot represent a stream of type ZLIB as a File
Descriptor in ...
when using flock() after gzopen().
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by: deko |
last post by:
Do I need to use flock() when reading a file into an array? It's possible that
the file in question could be open at the time the file('filename') request is
made. I realize flock() is required when opening a file with fopen() when there
is contention for the file:
$fp=fopen($ctr, 'w');
//only write if we can get lock on file
if...
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by: Dino |
last post by:
dear all,
i've created an application for a customer where the customer can upload
..csv-files into a specified ftp-directory. on the server, a php-script,
triggered by a cronjob, reads all the data, imports it into a mySQL database
and deletes the .csv-file after the import.
so far, so good.
but in some cases the cronjobs starts...
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by: Rex Karz |
last post by:
Newbie here.
I interpret the fine print at
http://us2.php.net/manual/en/function.flock.php
to mean that flock() does not work where the file being locked is
on an NFS filesystem.
The commentary following the "official" description of flock()
offers numerous circumventions broken flock() where the file
needing atomic access is on an NFS...
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by: thakadu |
last post by:
The following code works as expected when run in the main body of a
python script (ver 2.3.5) on OpenBSD v3.8. but when it is in the body
of a function definition it does not work. It does not raise any errors
but it simply does not block as expected. I have repeated this in both
a cgi envirnoment and a non-cgi environment. I also have...
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by: sven.holcombe |
last post by:
Hi there,
I'm trying to just prevent multiple instances of a script running.
I would have thought that the following code would do this for me.
<php
$fp = fopen("foo.txt", "w");
flock($fp, LOCK_EX + LOCK_NB) or die ("Could not get lock!\n");
echo "Got lock!\n";
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by: Time Waster |
last post by:
Is this a stupid use of flock:
FILE *fp=fopen(SOME_FILE_CONSTANT,"r+");
flock(fileno(fp),LOCK_EX);
something important here, including reads and a write to fp
flock(fileno(fp),LOCK_UN);
fclose(fp);
Does this accomplish real locking, or just narrow down the
race quite a bit? (Race existing between the unlock and the
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by: xucs007 |
last post by:
I ran following 2 programs (lock1, lock2) at almost same time,
to write either "123456", or "222" to file "aaa" at the same time.
But I often just got "222456" in "aaa" .
Is this a bug of python fcntl module ? See 2 programs I ran:
#!/usr/bin/env python
import fcntl, time
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by: Bill H |
last post by:
I am wondering if this is possible. I have a file that is accessed by
multiple users and keeps track of activity (the file is polled by
flash every 2 seconds). As users leave, the flash program tells the
php program to remove them from the activity file, and as users access
this activity file, users who have timed out (haven't been heard from...
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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...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that...
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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...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes...
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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...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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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
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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