Timing C Code execution
I am attempting to increase time the c code execution time as
I improve the performance of my algorithm. I tried using time.h and
when doing something simple like
time_t1;
time(t1);
The compiler responds with
called object ‘&time’ is not a function
What is the best method for timing the c execution time given
we are not using the Alchemy gcc?
Yea...I am looking for something on the C side of things. I
tried using clock() also but I don't feel like the values are
correct. The timings stay the same every time I run the program
even with changes to the C code and some other odd results. Any
thoughts? I could just be doing something wrong...does anyone know
if this should work???
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Code Execution in Cover Flow View and .mov Files
There is a code inside QuickTime movies that gets executed in Cover Flow view in Leopard!!!!!!!!.
I was helping a friend installing Leopard on his machine, and after restarting, I was showing him the new options in the Finder, when a found a bunch of videos (searched on his computer with Spotlight) and switched to 'Cover Flow View', and then Safari started opening web pages from the internet (Mostly adult sites).
After doing some tests I've noticed that the pages load the moment the Finder 'refines' the view of the videos. You know when the Finder first generates a blocky image of the video (some times called proxy image) and then generates a higher or cleaner resolution of that same video.
Not only that, if I resize the window or the preview pane, the code executed again and Safari opened the pages again!!!!
The Finder also executed the code in icon view with the 'Show Icon Preview' option selected in 'View Options' (Command-J).
Opening the videos in QuickTime Player did not trigger the code. But I've noticed that the videos start playing the moment they open. The Inspector (Command-I) didn't show anything unusual. But the Properties window (Command-J in QuickTime Pro) show a "Sprite Track" of Format 'Sprite' but again the different tabs (Annotations, Resources, Visual Settings or Other Settings) didn't show anything unusual.
*CORRECTION: The code also gets executed at the middle of the video when played in QuickTime. So this problem is related to QuickTime.!!!!!!*
The only solution to stop the code execution is to delete the 'Sprite Track'!!!!.
I also opened the movies in TextEdit and found the following text almost at the end of all the weird symbols:
(I'm sorry but the code disappears when I publish this post).
That's one of the pages that Safari was opening.
I don't know where my friend downloaded those videos, but the potential security risk is imminent.
I had the same results even after updating to QuickTime 7.3
I can upload the videos somewhere (at least the 'clean' ones) so you can make you own tests.
Any thoughts or comments?????
Is this a known issue in QuickTime?????
P.S. Once again please excuse my English (my main language is Spanish).If I'm understanding correctly the "Sprite" is a part of how QuickTime works. In older versions you USED to be able to attach JavaScript to a sprite and do all kinds of useful and fun things. However, some websites used JavaScript to alter themselves, so a well crafted QuickTime movie could be used to deploy code that would alter websites. As a result, a LOT of this functionality was curtailed in later versions and many cool QuickTime functions no longer work.
The few that DO still work are when they are basic hyperlinks that take you to another web page, (Like at the end of this movie, BUT you have to click the link to go
http://www.makentosh.com/tipsfromtheiceberg/Blog/Entries/2006/3/7Somebody_ToldMe....html
) and others no longer work within the browser (they only work when using the QuickTime player). Give this a try. Use Safari to "Open File..." and open the .mov file. After it's open, see if it generates any other windows from there. If it doesn't, then I'd THINK it's operating as intended BUT it wouldn't hurt to send your feedback here for Apple to look into and/or fix it if necessary.
http://www.apple.com/quicktime/feedback/
Message was edited by: Kyn Drake -
Web Part Error: Sandboxed code execution request failed - office 365
If i am trying to edit the webpart, i am getting this error "Web Part Error: Sandboxed code execution request failed"
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Please post your question on online community for sharepoint -
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I use i Phone version 7.1.2 and I am new to apple. I am curious to know if anyone in the community has noticed "bug_type";"193"os_version":"iPhone OS 7.1.2, It seems as though the system crash report states, Exception Type:EXC_BAD_ACCESS (SIGSEGV), Exception Subtyp: Kern_Invalid_Address at 0x0000000015d592c8 triggered by Thread 0 or bug_type";176, found under General, About, diagnostic and usage data.
Or if anyone in the community has also seen awdd-2014-09-11-001040-3.consolidated.metriclog. It seems as if a UIKit is involved similar to cunzhang from Adlab of Venustech, and Ian Beer of Google Project ZOO's findings.
It seems as though crashes are occurring on the phone using shell code execution and UIKit's I am unaware of a patch or software update. Although I have been privy to the wild card diginotar fake ssl certs, in the past.
Has anyone else seen or encountered Data subject FlashStatus-2014-09-10-234947.ips.synced bug type 176, Setup_2014-09-10-075848_iPhone.ips bug type 109, concerning airport settings, bud_2014-)9-11-171830_Metric-Log-Inc.ips Path System Library Private Frameworks, crashed triggered byThread 5 0libsqlite3.dylib+139484 0x000000001995a0dc 0x199518000.
I have shown this to Apple employees and they stated I may need to contact a programmer.
I have contacted Apple directly brought this to their attention, they are, as always very supportive. But, I believe I need a programmer as this is above my expertise. Any help from the community would be appreciated. Even a link to where I can find out more would be helpful.Yes, thank you. This is the closest solution to my problem.
However, I will now introduce host_profile host agent.
But I can not understand where exactly did I lack rights to the agent?
======================
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service/admin_users = daaadm sapadm
DIR_LIBRARY = /usr/sap/hostctrl/exe
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DIR_INSTANCE = /usr/sap/hostctrl/exe
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service/logfile_008 = /usr/sap/SLM/DVEBMGS00/j2ee/cluster/server0/log/applications.*.log
service/logfile_009 = /usr/sap/SLM/DVEBMGS00/j2ee/cluster/server0/log/applications/com.sap.xi/xi*.log
service/logfile_010 = /usr/sap/SLM/DVEBMGS00/j2ee/cluster/server0/log/applications/com.sap.xi/xi.*.log
service/logfile_011 = /usr/sap/SLM/DVEBMGS00/j2ee/cluster/server0/log/defaultTrace*.trc
service/logfile_012 = /usr/sap/SLM/DVEBMGS00/j2ee/cluster/server0/log/defaultTrace.*.trc
====================== -
Halt code execution while awaiting a return value - like JOptionPane..
I've been struggling with a minor annoying problem...
I want to achive kindda the same thing as what happens when you call: String s = JOptionPane.showInputDialog(...);
The code execution locks until a value is returned, and this is exactly what I want to be able to do with my own custom dialog/frame/whatever.
Obviously, wait() and notify() on the calling thread won't work, so how can I achieve this optionpane gui-code-locking behaviour with my own custom gui components?
Thx in advance !From JInternalFrame source:
* Creates a new <code>EventDispatchThread</code> to dispatch events
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synchronized void startModal() {
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* waits for input.
if (isVisible() && !isShowing()) {
Container parent = this.getParent();
while (parent != null) {
if (parent.isVisible() == false) {
parent.setVisible(true);
parent = parent.getParent();
try {
if (SwingUtilities.isEventDispatchThread()) {
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while (isVisible()) {
// This is essentially the body of EventDispatchThread
AWTEvent event = theQueue.getNextEvent();
Object src = event.getSource();
// can't call theQueue.dispatchEvent, so I pasted its body here
if (event instanceof ActiveEvent) {
((ActiveEvent) event).dispatch();
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} else {
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* Stops the event dispatching loop created by a previous call to
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synchronized void stopModal() {
notifyAll();
}It basically works like this:
If this thread is not the EventDispatcher, then just use wait() and notify().
If it is the EventDispatcher...the process the events from here while we wait for the dialog to close. Seems kind of dirty, but it works. -
Varchar2 "Width" during code execution
Release 10g2 --
Is it possible to in some way determine the defined "width" of a char variable (esp. varchar2) during code execution?
For example, given:
=================================
strng VARCHAR2(<width>)
BEGIN
strng := function(sizeof(strng))
=================================
Is there any reasonably straightforward manner to create that "sizeof" function which can return the max width of strng to the function? I'd like to make sure, without writing exception logic, that I don't overflow the boundary of the strng variable. This is fairly easy to do in c but I don't see anything readily analogous in Oracle. Assume that strng is not tied to a table column, in particular, although that, too (i.e., created using %TYPE in the definition) would probably be useful to be determinable as well.
Any suggestions as to how one might accomplish this without some absurd "fill until the exception occurs" loop would be appreciated.Thanks, I searched for something like that but didn't find it.
There is a function called VSIZE in Oracle 9i, but it returns the memory length of the ACTUAL string, not the theoretical maximum. The only way I see for you is to select the string length from the data dictionary, look at ALL_TAB_COLUMNS. Or write a loop with an exception section, trying to add one character after another until the exception is raised. This is correct, VSIZE does not do what I'm after. The specific link above deals more with the special case of %TYPE. I'm more interested in the general case of a defined variable -- Where in the Data Dictionary would I look for information about a variable? (I don't necessarily need instructions, but a pointer to something to read that should cover what I'm after would be helpful-- even a book reference would be of use, since it's hard to tell what books cover what topics well -- I don't mind becoming more knowledgeable about the DD, that seems like widely useful info anyway).
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Allowing the movie to run during complex code execution
Hello,
I have this complex XML processing code that builds up thousands of objects on stage. This might take some time. Perhaps not that big time to bring up that message about slow code execution, however signifficant enough to cause interface uncomfortabilities.
I understand very well that I can restructure my code in order to save all contextual variables, all counters in an object that is passed down to onEnterFrame events that process it a little bit and then pass it further, until the job is done.
However, before I go into dissecting my code, I wanted to make sure if there really is not a way how tom tell flash player do it's frame rendering routine while a complex code is executed in background (without splitting it up).
Thanks!No, unfortunately, Flash player is not able to run something on a seperate thread while code is currently executing (the player will just lock up if the code execution takes longer than a certain amount of time and you'll get the dreaded "A script is causing the player to run slowly" dialog). People have done work to do something similar to what you are trying to do, but ultimately, it comes down to running an ENTER_FRAME event or timer to break up the code execution.
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Threat Feed (McAfee) say my ipad2 got threats, memory corruption vulnerability exist,
which could lead to remote code execution. How to solve this problem?You can't solve this problem yourself. You would need to wait for apple to release a "fix" or for McAfee to revise their judgement.
If you're worried about the threats, don't do things that would expose yourself to the vulnerability that they describe.
Since I can't see what you're looking at, I can't give you any other advice. -
Hi Experts,
My IPS has been reporting "PHP-Remote Code Execution" attack on one of our webserver for a while now. Each time the attackers IP address keeps changing. I created an object-group and access-list to deny the object-group on my firewall and i keep adding the attacker's IPs to the group, however i keep recieving new "PHP-Remote Code Execution" attacks. My IPS is in promiscous mode and i have auto signature update enabled.
IPS has reported "packet denied by global correlation in some case. Like i said, IPS is in promiscous mode. Signature: 2271/0 and CVE-2012-1823
Apart from making sure the webservers have the right security patches, What else should i be doing?. Do not want to miss anything out?cactus wrote:mhakali. I applaud your attention to security.
However, it is generally not well received to post the same thing in multiple categories..
Yes. Please do not cross-post: http://bbs.archlinux.org/viewtopic.php?p=205922
Use the above thread for discussion.
Locking. -
Adobe Acrobat Reader Crafted PDF Document Remote Code Execution
Hi all,
I was wondering if Adobe can clarify when "CVE-2012-4363 Adobe Acrobat Reader Crafted PDF Document Remote Code Execution" will be fixed?
It's been a pretty long time since this issue was reported.
With kind regards,
Erik Verhoef
The Netherlandsi was also given the Knowledge Base number 405461 from adobe, and they said that this would definitely fix the problem...AND IT DIDN'T :-(
see kb405461
http://kb.adobe.com/selfservice/view...nalId=kb405461
and just to let everyone know, i have already completely uninstalled adobe reader and reinstalled it several times thinking that fresh install would cure the problem, and it hasn't made a bit of difference. the version of reader doesn't matter either, as i've tried versions 7, 8 and 9... all with the same exact issue...which makes me think that it might be an issue with MS IE6. -
False positive for GNU Bash Remote Code Execution Vulnerabil​ity
Dear Team,
in my customer, one of banking in brunei want to access several finance website such as www.iifm.net etc. Tipping point IPS blokec to access the website with report as a 16800: TCP: GNU Bash Remote Code Execution Vulnerability ( Low Severity). The site is normal and legal website. Our question is the several website is needed to access by our employee due to the dailiy working. Please advice
Best Regards
YudiHello Yuibagan,
This is the Consumer products forum.
You need to be in the HP Enterprise Business Community for IT related issues for servers, etc.
I think you will want to post this question in the Security section. Dont post the same question more than once as you did here.
HP Networking
You will also want to take a look at the Articles and updates explaining GNU Bash here:
GNU Bash vulnerability "Shellshock" (CVE-2014-6271... - HP Enterprise Business Community
HP Security Research: GNU Bash vulnerability "Shel... - HP Enterprise Business Community
HP AppDefender and HP WebInspect updates: GNU Bash... - HP Enterprise Business Community
HPSR Software Security Content 2014 Update 3 - HP Enterprise Business Community
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False positive for 16800: TCP: GNU Bash Remote Code Execution Vulnerability
Dear Team,
in my customer, one of banking in brunei want to access several finance website such as www.iifm.net etc. Tipping point IPS blokec to access the website with report as a 16800: TCP: GNU Bash Remote Code Execution Vulnerability ( Low Severity). The site is normal and legal website. Our question is the several website is needed to access by our employee due to the dailiy working. Please advice
Best Regards
Yudi@yuibagan
Thank you for using HP Support Forum. I have brought your issue to the appropriate team within HP. They will likely request information from you in order to look up your case details or product serial number. Please look for a private message from an identified HP contact. Additionally, keep in mind not to publicly post ( serial numbers and case details).
If you are unfamiliar with the Forum's private messaging please click here to learn more.
Thank you,
Omar
I Work for HP -
Vulnerability in VBScript Scripting Engine Could Allow Remote Code Execution (3016711)
Can some one help me to download below Security patches which i am not able to download from MS Web site?
Vulnerability in VBScript Scripting Engine Could Allow Remote Code Execution (3016711)
Vulnerability in VBScript Scripting Engine Could Allow Remote Code Execution (3016711)Microsoft Releases KB3024777 Update to Fix Botched KB3004394 Patch
http://news.softpedia.com/news/Microsoft-Releases-KB3024777-Update-to-Fix-Botched-KB3004394-Patch-46...
Windows 7 Pro SP1 (64-bit), avast! V7 Free, MBAM Pro, Windows Firewall, EMET, OpenDNS Family Shield, IE9 & Firefox (both using WOT & KeyScrambler), MVPS HOSTS file, SpywareBlaster, WinPatrol PLUS, SAS (on-demand scanner), Secunia PSI.
[I am experimenting with Sandboxie, and believe computer-users who sandbox are acting prudently.] -
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I've just successfully compiled TidyHTML into SWC library and after running a few test I am a bit disappointed - execution time of flashcc-generated code on my PC is near 500 ms(and approximitly 3000 ms on Nexus 7), when C++ console application executes the same code in 36 ms. So C++ application is almost at 14 times faster - is this normal for Crossbridge? TidyHTML was compiled into static library using gcc with -O4 flag, and SWC was compiled with g++ using the same optimization level.
Thank you for answer, I'll check it out with Scout. I understand how it works so I do not counting on a same performance as native code may show. But a 14x difference in performance seems suspicious. I've noticed that on first run of function from SWC on Android tablet it takes 3 seconds, but during next calls - approximitly 1 second, that looks more close to expected result. On PC code executes among 750-800 ms on first run and 410 ms after that.
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To skip the html code execution in jsp
Hello,
I wan to skip a part of html code from execution in jsp.I would like to know how can I do that
For example : Here is a part of my jsp code
<%String sample = "Hello <html>world!</html>"; %>
<!DOCTYPE HTML --- >
<HTML>
<BODY>
Sample Msg is : <%= sample%>
</BODY>
</HTML>
when I run this jsp the mesage that is been displayed in the
browser is "Sample Msg is : Hello world!"
But what I want to display in the browser is "Sample Msg is : Hello <html>world!</html>"
How can I do thatTry escaping the opening tag characters. Change this
<%String sample = "Hello <html>world!</html>"; %>to this
<%
String sample = "Hello & lt;html>world!& lt;/html>";
%>or maybe even this
<%
String sample = "Hello & lt;html& gt;world!& lt;/html& gt;";
%>
Don't put spaces between the "&" and the "lt" or "gt". I had to do that so that it would display properly in the forum.
(The tags mean less than and greater than)
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