09-09-2008
If you are handling clients on a system that must scale you will use neither. Using non-blocking I/O and a fast event mechanism like epoll or kqueue is a better answer.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
For a project we need to make sure that all php / html files in a certain directory on the webserver are showing advertisments of us.
For example, when you get a website from Lycos, you'll have an advertisement in the right corner.
How to?
As far as I can see, Lycos includes a javascript... (1 Reply)
Discussion started by: valentijnb
1 Replies
2. Shell Programming and Scripting
Hi Friends!!
I have obtained following output from a tool called pdftoxml:
<xml>
<text top="423" left="521" width="333" height="20" font="3">Although the the number of fuzzy rules of a system is </text>
<text top="441" left="500" width="355" height="20" font="3">directly dependant on these... (2 Replies)
Discussion started by: parshant_bvcoe
2 Replies
3. Shell Programming and Scripting
Hi all.
I do have a script "startApp.sh" (app result is a file /opt/extract/appextract.txt)
I have no problems with stopping app
var1=`ps -ef | grep -v grep | grep MyApp | awk '{print $2}'`
kill -9 $var1
What I want to achieve is:
I start app, app is doing some extraction, after... (11 Replies)
Discussion started by: e-l-diablo
11 Replies
4. Shell Programming and Scripting
I have a file which will have rows like shown below,
ST*820*316054716
RMR*IV*11333331009*PO*40.31
REF*IV*22234441009*xsss471-2762
DTM*003*091016
ENT*000006
RMR*IV*2222234444*PO*239.91
REF*IV*1234445451009*LJhjlkhkj471-2762 </SPAN>
DTM*003*
091016
RMR*IV*2223344441009*PO*40.31... (18 Replies)
Discussion started by: Muthuraj K
18 Replies
5. Shell Programming and Scripting
Hello All,
My script is nearly complete, there is just one last piece that needs to be added in.
I need to check for the time, and if it is lets say for example. Sunday at 5:00AM, my script cannot run.
I would assume it would be something like this, parden the terrible pseudocode
... (7 Replies)
Discussion started by: jeffs42885
7 Replies
6. Shell Programming and Scripting
Hi all,
I have to run C++ file using root programming, using following commands:
$root -l
root .L TwoTrees.C++
root TwoTrees t
root t.Loop()
root.q
I wonder if I can write script to do the following.
Thanks
Pooja (12 Replies)
Discussion started by: nrjrasaxena
12 Replies
7. Shell Programming and Scripting
i am stuck with this strange problem..... maybe you can help.
i have one master_file which has two column username and id_number separated by , somewhat like :
cat master_file :
sample,1234567
javacode,4567891
companion,23456719
adamsandler,1237681
tomcruise,56328910
bradpitt,901236781... (9 Replies)
Discussion started by: mukulverma2408
9 Replies
8. UNIX for Dummies Questions & Answers
Below is the sample logfile:
Userids Date Time
acb Checkout time: 2013-11-20 17:00
axy Checkout time: 2013-11-22 12:00
der Checkout time: 2013-11-17 17:00
xyz Checkout time: 2013-11-19 16:00
ddd Checkout time: 2013-11-21 16:00
aaa Checkout... (9 Replies)
Discussion started by: asjaiswal
9 Replies
9. Shell Programming and Scripting
I want to do FTP an Huge XML file to mainframe server using AIX server
Since my file size is huge, i want to split the XML file based on a delimiter , the record delimiter should be set after every 27000 bytes of data
and then do the ftp
This is done becos the data send to the mainframe must... (1 Reply)
Discussion started by: vishwanath001
1 Replies
10. Programming
Hi,
I am working in Visual studio 2008 in which i have written the code in c++,qml,qt.Its a simulator application.
I would like to create a simulator with certain changes. In order to do that i have modified the code with few changes based on the preprocessor condition.
#define... (4 Replies)
Discussion started by: SA_Palani
4 Replies
KNOTE(9) BSD Kernel Developer's Manual KNOTE(9)
NAME
knote, KNOTE -- raise kernel event
SYNOPSIS
#include <sys/event.h>
void
knote(struct klist *list, long hint);
KNOTE(struct klist *list, long hint);
DESCRIPTION
The knote() function provides a hook into the kqueue kernel event notification mechanism to allow sections of the kernel to raise a kernel
event in the form of a 'knote', which is a struct knote as defined in <sys/event.h>.
knote() takes a singly linked list of knotes, along with a hint (which is passed to the appropriate filter routine). knote() then walks the
list making calls to the filter routine for each knote. As each knote contains a reference to the data structure that it is attached to, the
filter may choose to examine the data structure in deciding whether an event should be reported. The hint is used to pass in additional
information, which may not be present in the data structure that the filter examines.
If the filter decides that the event should be returned, it returns a non-zero value and knote() links the knote onto the tail end of the
active list in the corresponding kqueue for the application to retrieve. If the knote is already on the active list, no action is taken, but
the call to the filter occurs in order to provide an opportunity for the filter to record the activity.
knote() must not be called from interrupt contexts running at an interrupt priority level higher than splsched().
KNOTE() is a macro that calls knote(list, hint) if list is not empty.
SEE ALSO
kqueue(2), kfilter_register(9)
HISTORY
The knote() and KNOTE() functions first appeared in FreeBSD 4.1, and then in NetBSD 2.0.
AUTHORS
The kqueue() system was written by Jonathan Lemon <jlemon@FreeBSD.org>.
BSD
February 18, 2004 BSD