Mahol Dot Org http://www.mahol.org/blog Weblog For All Your Need Fri, 03 Sep 2010 10:00:50 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 MaholDotOrghttp://feedburner.google.com Fork Implementation In Windows Operating System Vfork Implement in Win32 http://www.mahol.org/blog/fork-implementation-in-windows-operating-system-vfork-implement-in-win32/ http://www.mahol.org/blog/fork-implementation-in-windows-operating-system-vfork-implement-in-win32/#comments Fri, 03 Sep 2010 10:00:50 +0000 admin http://www.mahol.org/blog/?p=494 With little understanding of fork basics here are few more findings on how to vfork implementation in windows operating system and
fork implementation on win32
AT&T Labs Research - Software Tools pick out UWIN: Unix on Windows 95 and NT Machines
Major difference in Linux/Unix functionality and WIN32 applications
Process control and management:
Fork implementation
processes can be created using the fork(2) function, in win32 includes a spawn family of functions that combines the functionality of fork/exec for efficiency.
File descriptor
Open files, pipes, sockets, fifos, and character and block special devices files have file descriptors associated with them. In windows it is called handle.
signals
Most of the unix/linux signals are absent in windows, like SIGALRM
SIGCHLD
SIGHUP
SIGINT
SIGKILL
SIGPIPE
SIGQUIT
SIGUSR1
SIGUSR2
these can be implemented using replacement methods like SIGALRM Time-out alarm can be implemented using SetTimer – WM_TIMER – CreateWaitableTimer
SIGCHLD Change in status of child can be implemented using WaitForSingleObject
Terminal interface for consoles, sockets, and serial lines

sockets based on WINSOCK:

File control locking:

Memory mapping and shared memory
mmap()

System V IPC
semaphore; Shmget can be implemented using CreateFileMaping or
OpenFileMapping
shmdt can be implemented using UnmapViewOfFile
shmat can be implemented using MapViewOfFile
Pipe to _pipe
Close to _close

Runtime linking of dynamically linked libraries : like The dlopen(), dlsym() interface
Error mapping from Windows to UNIX

Symbolic links
Symbolic links to files and directories can be created and can be implemented as Windows shortcuts.

Few Good References for Unix2Win porting

  1. Porting Socket Applications to Winsock
  2. Process and Thread Functions
  3. Winsock Programmer’s FAQ Articles: BSD Sockets Compatibility
  4. LibGW32C for GNU C library for Windows
  5. Unix to Windows Porting Dictionary for HPC
  6. UNIX Application Migration Guide
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]]> http://www.mahol.org/blog/fork-implementation-in-windows-operating-system-vfork-implement-in-win32/feed/ 0 CreateProcess And fork() In Windows Differences And Implementation http://www.mahol.org/blog/createprocess-and-fork-in-windows-differences-and-implementation/ http://www.mahol.org/blog/createprocess-and-fork-in-windows-differences-and-implementation/#comments Thu, 02 Sep 2010 10:26:25 +0000 admin http://www.mahol.org/blog/?p=484 Although there is a one-to-one mapping between C UNIX APIs and Win32 APIs for most of the APIs like open to CreateFile, read to ReadFile, write to WriteFile, ioctl to DeviceIOControl, close to CloseFile, and so on. Still, While Porting applications from UNIX to Win32 natively,
One of the largest areas of difference is in the process model. UNIX has fork; Win32 does not. Depending on the use of fork and the code base, Win32 has two APIs that can be used: CreateProcess and CreateThread. A UNIX application that forks multiple copies of itself can be reworked in Win32 to have either multiple processes or a single process with multiple threads read Porting from UNIX to Win32 for further study.

What’s the best way to duplicate fork() in windows?
Forking a Win32 Process

Process Creation in cygwin
The fork call in Cygwin is particularly interesting because it does not map well on top of the Win32 API. This makes it very difficult to implement correctly. Currently, the Cygwin fork is a non-copy-on-write implementation similar to what was present in early flavors of UNIX.  The first thing that happens when a parent process forks a child process is that the parent initializes a space in the Cygwin process table for the child. It then creates a suspended child process using the Win32 CreateProcess call.

Read further to know why process creation in cygwin is slow? windows fork process; dynamic forking process win32

Here are Some Differences between CreateProcess() in WIn32 and fork()/exec();
http://users.telenet.be/bartl/classicperl/fork/c_code.gifUnix has two primitives: fork (create new process identical to calling process) and exec (replace details of current process with those loaded from executable file).
Fork also copies open file descriptors, including network sockets (like filehandles) are inherited by children.
Windows has one primitive: CreateProcess, which is roughly equivalent to fork-then-exec.

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]]> http://www.mahol.org/blog/createprocess-and-fork-in-windows-differences-and-implementation/feed/ 1 Solution – C Requires That a Struct Or Union Has At Least One Member http://www.mahol.org/blog/solution-c-requires-that-a-struct-or-union-has-at-least-one-member/ http://www.mahol.org/blog/solution-c-requires-that-a-struct-or-union-has-at-least-one-member/#comments Tue, 03 Aug 2010 13:20:28 +0000 admin http://www.mahol.org/blog/?p=481 Windows errors are strange,
I have one header file in which one structure is declared,
as

typedef struct {
key_t xyz;
——
}INFO;

For this When I compile using cl.exe I get following list of errors.

: error C2016: C requires that a struct or union has at least one member
: error C2061: syntax error : identifier 'key_t'
: error C2059: syntax error : '}'

Well I am doing Code migration from Unix system to Windows system so key_t is not known in windows.

It does not make sense for the

Compiler Error C2016

which says no closing single quotation mark. Scratching my head and going around with the error.
I do not see any mistake in struct declaration,
Solution – C requires that a struct or union has at least one member
Just add the declaration of key_t in same header file before structure declaration.

typedef int key_t;

And compile again you are done.

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]]> http://www.mahol.org/blog/solution-c-requires-that-a-struct-or-union-has-at-least-one-member/feed/ 0 Emulate Fortran Function Btest In C Language http://www.mahol.org/blog/emulate-fortran-function-btest-in-c-language/ http://www.mahol.org/blog/emulate-fortran-function-btest-in-c-language/#comments Fri, 30 Jul 2010 08:25:26 +0000 admin http://www.mahol.org/blog/?p=478 Emulate the fortran function btest in C language
BTEST function is as part of Bit Functions library in Fortran,
description of BTEST function

btest( m, i ) Tests bit i in m; returns .true. if the bit is 1, and .false. if it is 0.
Here is C language code implementation of BTEST function, which checks for bit and returns true ie 1 if bit is SET or else returns 0.

int btest(int word, int bit)
{
  unsigned int mask;

  /* Create the bit mask */
  mask = 0x0000001 << bit;

  /* Return TRUE or FALSE*/
  return (( word & mask ) != 0);
}
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]]> http://www.mahol.org/blog/emulate-fortran-function-btest-in-c-language/feed/ 0 www.techedu.gov.bd Polytechnic Admission Test Result Bangladesh | Merit List Online www.techedu.gov.bd http://www.mahol.org/blog/www-techedu-gov-bd-polytechnic-admission-test-result-bangladesh-merit-list-online-www-techedu-gov-bd/ http://www.mahol.org/blog/www-techedu-gov-bd-polytechnic-admission-test-result-bangladesh-merit-list-online-www-techedu-gov-bd/#comments Thu, 29 Jul 2010 09:44:25 +0000 admin http://www.mahol.org/blog/?p=476 BD polytechnic admission test results online

DIRECTORATE OF TECHNICAL EDUCATION

DIRECTORATE OF TECHNICAL EDUCATION declared Polytechnic Admission Test Result Bangladesh online at www.techedu.gov.bd
Contact
Directorate of Technical Education
F-4/B Agargaon Administrative Area,
Sher-e Bangla Nagar, Dhaka-1207
Ph: 88-02-9110664
www.educationboardresults.gov.bd HSC Result 2010 Bangladesh Dhaka HSC 2010 results -
BD polytechnic admission test results now online

watch your admission results and news.
this link

clicking this direct link
admission in polytechinc bd online, Admission into Polytechnic Institute, bd polytechnic admission results, bd polytechnic admission results online

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]]> http://www.mahol.org/blog/www-techedu-gov-bd-polytechnic-admission-test-result-bangladesh-merit-list-online-www-techedu-gov-bd/feed/ 0 This USE Statement Is Not Positioned Correctly Within The Scoping Unit http://www.mahol.org/blog/this-use-statement-is-not-positioned-correctly-within-the-scoping-unit/ http://www.mahol.org/blog/this-use-statement-is-not-positioned-correctly-within-the-scoping-unit/#comments Wed, 28 Jul 2010 06:54:59 +0000 admin http://www.mahol.org/blog/?p=471 Error: This USE statement is not positioned correctly within the scoping unit.
I keep getting this error, and I have no idea why. The program is in a very standard structure:
I did check help / man page of IFORT but no luck..
http://www.intel.com/sites/sitewide/HAT/40recode/pix/main-logo.png This thread at intel.com also discuss about the same problem.
the answer at this thread is

“USE YourModule” must preceed local variable declarations. Your include file (at least one of your include files) is declaring at least one variable.

Place your USE to preceed the include statements.

But that did not work completely,

and other half part of answer is
Add an only clause to select only the GETENV routine:
use IFPORT, only: GETENV
This will hide any other names in IFPORT;
This post will talk about why added USE IFPORT
This worked fine..
share your experience as well..

USE also must precede any IMPLICIT statements. Best is to have them come directly after the SUBROUTINE or FUNCTION statement.

you can have USE and IMPORT statements in the same interface body, but the forbidden ‘mixing’ I was referring to was that of placing any IMPORT statement before any USE statement .. source

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]]> http://www.mahol.org/blog/this-use-statement-is-not-positioned-correctly-within-the-scoping-unit/feed/ 0 Pipes Example Code For Linux Process Synchronizaion http://www.mahol.org/blog/pipes-example-code-for-linux-process-synchronizaion/ http://www.mahol.org/blog/pipes-example-code-for-linux-process-synchronizaion/#comments Fri, 23 Jul 2010 09:46:31 +0000 admin http://www.mahol.org/blog/?p=469 Pipe is a buffer of fixed size written by one related process and read by another related process. where related process means, parent and child process.
Usage : int pipe(int fildes[2])
creates a pipe and returns two file descriptors, fildes[0] and fildes[1] for reading and writing.
mutual exclusion is handled by operating system, ie only one process at a time can read or write to pipe. If one process is reading or writing on pipe other process will wait.
processes sharing the pipe must have same parent in common and are unaware of each other’s existence

Pipe example

main()
{
int n;
int   pipefd[2];
char buff[100];
if (pipe(pipefd) < 0)       // create a pipe
perror(“pipe error”);
printf(“read fd = %d, writefd = %d\n”, pipefd[0], pipefd[1]);
if (write(pipefd[1], “hello world\n”, 12) !=12) // write to pipe
perror(“write error”);
if ((n=read(pipefd[0], buff, sizeof(buff))) <=0) //read from pipe
perror(“read error”);
write(1, buff, n );   /* write to stdout */
close(pipefd[0]);
close(pipefd[1]);
exit(0);
}
Result:
read fd = 3, writefd = 4
hello world
default FD for any process under Linux is from 0, 1 and 2 ie for STDIN, STDOUT and STRERR, whatever new descriptors are created will be assigned FD greater than 2. So read FD for pipe is 3 and write FD for Pipe is 4.
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]]> http://www.mahol.org/blog/pipes-example-code-for-linux-process-synchronizaion/feed/ 0 The Linux kernel:parent and child synchronization using signal [del.icio.us]http://www.win.tue.nl/~aeb/linux/lk/lk-5.htmlsignals, linux programming signalsbhagwatThu, 22 Jul 2010 05:06:39 PDThttp://www.win.tue.nl/~aeb/linux/lk/lk-5.htmlSending signals and receiving.. The Linux kernel<br /> Andries Brouwer http://www.win.tue.nl/~aeb/linux/lk/lk.html#toc10 Cameroon GCE 2010 Results | GCE Results A LEVEL | GCE Results 2010 | GCE Board www.camgceb.org http://www.mahol.org/blog/cameroon-gce-2010-results-gce-results-a-level-gce-results-2010-gce-board-www-camgceb-org/ http://www.mahol.org/blog/cameroon-gce-2010-results-gce-results-a-level-gce-results-2010-gce-board-www-camgceb-org/#comments Thu, 22 Jul 2010 07:28:06 +0000 admin http://www.mahol.org/blog/?p=467 The Cameroon GCE 2010 board result Updates from The Cameroon General Certificate of Education Board .
Update from Cameroon GCE Board results that this year’s General Certificate of Education results will be out by mid August 2010.
written part of the 2010 GCE Examination,

Q. When will the results for cameroon GCE 2010 be released?
A. The site is not mentioned anywhere, may be announced at
http://www.camgceb.org/
results for the 2010 g c e in cameroon, cameroon gce 2010 results,
cameroon gce 2009 results,cameroon gcse results day 2010,
GCE Results To Be Released Before Mid August.

GCE A LEVEL Exam Results Day | GCSE Exam Results 2010 GCE A/AS

cameroon gce board • gce board • cameroon news headlines • gce board cameroon • cameroon gce results 2010
cameroon GCE2009 Examinations results.list of 2010 Cameroon GCE result. EXAM RESULTS: JUNE 2010 CAMEROON GCE RESULTS .
cameron gce board result2010. Cameroon gce 2010 results. cameroon certificate of education broad.
CAMEROON G C E results list 2010
cameroon post or GCE advanced level results.

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]]> http://www.mahol.org/blog/cameroon-gce-2010-results-gce-results-a-level-gce-results-2010-gce-board-www-camgceb-org/feed/ 0 www.niper.ac.in NIPER Results 2010 Counseling & Admisson to M.S. Pharm. M.Pharm. M.Tech Pharm. M.B.A. Pharm http://www.mahol.org/blog/www-niper-ac-in-niper-results-2010-counseling-admisson-to-m-s-pharm-m-pharm-m-tech-pharm-m-b-a-pharm/ http://www.mahol.org/blog/www-niper-ac-in-niper-results-2010-counseling-admisson-to-m-s-pharm-m-pharm-m-tech-pharm-m-b-a-pharm/#comments Fri, 16 Jul 2010 06:45:20 +0000 admin http://www.mahol.org/blog/?p=465 NIPER JEE Results | Admisson to M.S. Pharm. M.Pharm. M.Tech Pharm. M.B.A. Pharm,

http://www.niper.ac.in/niper.jpg
Here is update on NIPER JOINT ENTRANCE EXAMINATION 2010 (NIPER-JEE 2010)
NIPER JEE Results 2010 will be declared today ie
Declaration of result of NIPER JEE-2010 is 16th July 2010.
NIPER entrance Results 2010 | NIPER,
check out NIPER counselling and admission details online.
NIPER Joint Entrance Examination – 2010 (NIPER-JEE-2010) For Admisson to M.S. (Pharm.); M.Pharm.; M.Tech. (Pharm.); M.B.A. (Pharm.)

http://www.niper.ac.in/niperjee2010.html
NIPER JEE Results, NIPER JEE Results 2010, NIPER JEE Results online, NIPER List of Selected Candidates, NIPER MBA admission Results, NIPER MBA Entrance

First NIPER counselling will begin from 23rd July 2010,

NIPER JEE Results, NIPER JEE Results 2010, NIPER JEE Results online, NIPER List of Selected Candidates, NIPER MBA admission Results, NIPER MBA Entrance Results, NIPER MErit List, NIPER MPharm Results, NIPER MS Entrance results, NIPER MTech Results, NIPER Selected Candidates List, www.niper.ac.in

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]]> http://www.mahol.org/blog/www-niper-ac-in-niper-results-2010-counseling-admisson-to-m-s-pharm-m-pharm-m-tech-pharm-m-b-a-pharm/feed/ 0 Matric SSC 9th and 10th Annual Results 2010 SSC (PART I) ANNUAL Exam SSC (PART II) ANNUAL Results 2010 http://www.mahol.org/blog/matric-ssc-9th-and-10th-annual-results-2010-ssc-part-i-annual-exam-ssc-part-ii-annual-results-2010/ http://www.mahol.org/blog/matric-ssc-9th-and-10th-annual-results-2010-ssc-part-i-annual-exam-ssc-part-ii-annual-results-2010/#comments Thu, 15 Jul 2010 15:27:25 +0000 admin http://www.mahol.org/blog/?p=460 Result of SSC (10th) Annual 2010 will be annouced on 4th Aug 2010 at 10:00 am
This is also called SSC (PART II) ANNUAL EXAMINATION, 2010 RESULT of pakistan board.
Result of SSC (9th) Annual 2010 will be annouced on 25th Aug 2010 at 10:00 am
This results are also called, SSC (PART I) ANNUAL EXAMINATION, 2010 RESULT of pakistan board.
Also check out

Federal Board of Intermediate and Secondary Education, Islamabad
http://www.fbise.edu.pk/

Lahore Board
To Check SSC Results for Lahore Board http://www.biselahore.com/
Tel: +92-42-9200192-7
Fax: +92-42-9200113

Karachi Board of Secondary Education (SSC)
Website: http://www.bsek.edu.pk/
Tel: 021-6610065

Hayderabad Board
To Check HSSC Results for Hayderabad Board : http://www.bisehyd.edu.pk/
Tel: 0221-9260277-78-79-81-82
Pak HSSC (12th) Annual 2010 Results | HSSC (11th) Annual 2010 Result Of Pakistan Boards | INTERMEDIATE PART I & Part II Results.pk
Rawalpindi Board:
To view SSC and HSSC Results for Rawalpindi Board online:
http://www.biserwp.edu.pk/Result.asp
Tel: (92) 51-9290529
Fax: (92) 51-9290552

Lahore Board
To Check SSC Results for Lahore Board http://www.biselahore.com/
Tel: +92-42-9200192-7
Fax: +92-42-9200113

Faisalabad Board
To Check SSC Results for Faisalabad Board http://www.bisefsd.edu.pk/Result.aspx
Tel. 042-9200677, 042-9200836
Fax. 042-9200679

Multan Board:
To Check SSC Results for Multan Board : http://www.bisemultan.edu.pk/
Phone No: 061-9210029
Fax No: 061-9210012

Gujranwala Board
To Check SSC Results for Gujranwala Board: http://www.bisegrw.com/
Tel: 092-55- 9200751 to 56 Ext: 801 and 802

Bhawalpur Boarrd:
To Check SSC Results for Bhawalpur Board : http://www.bisebwp.edu.pk/result.htm

Sukkur Board
To Check SSC Results for Sukkur Board : http://www.bisesuksindh.edu.pk/
Tel: 071-9310620

Sargodha Board
To Check SSC Results for Sargodha Board http://www.bisesargodha.edu.pk/
Tel: 048-9230143 / 048-3213632
Fax: 048-9230144

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]]> http://www.mahol.org/blog/matric-ssc-9th-and-10th-annual-results-2010-ssc-part-i-annual-exam-ssc-part-ii-annual-results-2010/feed/ 1 SSC Result 2010 Latur Aurangabad Pune Mumbai Board at www.mahresult.nic.in [del.icio.us]http://www.mahol.org/blog/results/ssc-results-2010-10th-result-2010-maharashtra-www-msbshse-ac-in-ssc-result-2010-latur-pune/ssc results 2010bhagwatWed, 16 Jun 2010 23:38:38 PDThttp://www.mahol.org/blog/results/ssc-results-2010-10th-result-2010-maharashtra-www-msbshse-ac-in-ssc-result-2010-latur-pune/WHO IS MAHARASHTRA SSC TOPPER. ssc result 2010. www.mahresult.nic.in studyssconline, mhssc, maharesults 2010, msbshse result 2010, maharesults nic 2010 maharesults nic 2010, mhssc result, msbshse result 2010, mah result 2010, sslc results 2010 maharashtra Introduction to the New Mainframe: z/OS Basics [del.icio.us]http://www.redbooks.ibm.com/redbooks.nsf/RedbookAbstracts/sg246366.htmlmainmainframebhagwatWed, 16 Jun 2010 22:31:32 PDThttp://www.redbooks.ibm.com/redbooks.nsf/RedbookAbstracts/sg246366.htmlBook By IBM online, Introduction to the New Mainframe: z/OS Basics; Part 1. Introduction to z/OS and the mainframe environment<br /> Chapter 1. Introduction to the new mainframe<br /> Chapter 2. Mainframe hardware systems and high availability<br /> Chapter 3. z/OS overview<br /> Chapter 4. TSO/E, ISPF, and UNIX: Interactive facilities of z/OS<br /> Chapter 5. Working with data sets<br /> Chapter 6. Using JCL and SDSF<br /> Chapter 7. Batch processing and JES<br /> Part 2. Application programming on z/OS<br /> Chapter 8. Designing and developing applications for z/OS<br /> Chapter 9. Using programming languages on z/OS<br /> Chapter 10. Compiling and link-editing a program on z/OS<br /> Part 3. Online workloads for z/OS<br /> Chapter 11. Transaction management systems on z/OS<br /> Chapter 12. Database management systems on z/OS<br /> Chapter 13. z/OS HTTP Server<br /> Chapter 14. WebSphere Application Server on z/OS<br /> Chapter 15. Messaging and queuing<br /> Part 4. System programming on z/OS<br /> Chapter 16. Overview of system programming<br /> Chapter 17. Using SMP/E Thread safety Programs [del.icio.us]http://publib.boulder.ibm.com/infocenter/systems/index.jsp?topic=/com.ibm.aix.genprogc/doc/genprogc/writing_reentrant_thread_safe_code.htmlinux programming c reference development reentrant functions ibmbhagwatSun, 01 Nov 2009 01:23:20 PDThttp://publib.boulder.ibm.com/infocenter/systems/index.jsp?topic=/com.ibm.aix.genprogc/doc/genprogc/writing_reentrant_thread_safe_code.htmThread safety program writing guide.. Linux Good Articles Collections [del.icio.us]http://www.ffnn.nl/pages/articles.phpGDB, linux sysadmin technologybhagwatSun, 01 Nov 2009 01:18:30 PDThttp://www.ffnn.nl/pages/articles.phpUsing GDB to backtrace Simple jQuery Dropdowns | CSS-Tricks [del.icio.us]http://css-tricks.com/simple-jquery-dropdowns/bhagwatFri, 14 Aug 2009 02:46:37 PDThttp://css-tricks.com/simple-jquery-dropdowns/iconPot - totally free icons [del.icio.us]http://www.iconpot.com/webdesignbhagwatFri, 14 Aug 2009 02:45:20 PDThttp://www.iconpot.com/ Text Rotation with CSS [del.icio.us]http://snook.ca/archives/html_and_css/css-text-rotationcssbhagwatFri, 14 Aug 2009 02:44:58 PDThttp://snook.ca/archives/html_and_css/css-text-rotation WordPress Resources - 48 Resources, Tips, Tricks & Themes | Think Design [del.icio.us]http://thinkdesignblog.com/wordpress-resources-48-resources-tips-tricks-themes.htmwebdesignbhagwatFri, 14 Aug 2009 02:44:00 PDThttp://thinkdesignblog.com/wordpress-resources-48-resources-tips-tricks-themes.htm WordPress Theme Development Check List &#8211; PDF Version &laquo; WP TOY [del.icio.us]http://wptoy.com/resources/wordpress-theme-development-check-list-pdf-version/webdesignbhagwatFri, 14 Aug 2009 02:22:33 PDThttp://wptoy.com/resources/wordpress-theme-development-check-list-pdf-version/ Translating WordPress into another language (themes and plugins too) | Inside WordPress | Urban Giraffe [del.icio.us]http://urbangiraffe.com/articles/translating-wordpress-themes-and-plugins/webbhagwatFri, 14 Aug 2009 02:21:08 PDThttp://urbangiraffe.com/articles/translating-wordpress-themes-and-plugins/ 30 Inventive Website Footer Designs | Design Newz [del.icio.us]http://design-newz.com/2009/08/01/30-inventive-website-footer-designs/webdesignbhagwatFri, 14 Aug 2009 02:20:34 PDThttp://design-newz.com/2009/08/01/30-inventive-website-footer-designs/ Kernel Korner - Allocating Memory in the Kernel [del.icio.us]http://www.linuxjournal.com/article/6930linux programming kernel memory gfpbhagwatFri, 07 Aug 2009 05:50:07 PDThttp://www.linuxjournal.com/article/6930Good Explanation on GFP_ATOMIC or GFP_KERNEL flags in kmalloc() function Greg K-H's Linux Stuff [del.icio.us]http://www.kroah.com/linux/linux programming embedded development kernel driver researchbhagwatWed, 29 Jul 2009 00:11:05 PDThttp://www.kroah.com/linux/linux programming embedded development kernel stuff; good links collection Free Online Course Materials | MIT OpenCourseWare [del.icio.us]http://ocw.mit.edu/OcwWeb/web/home/home/index.htmweb open opensource books free tutorial education mit learning universitybhagwatSun, 26 Jul 2009 21:57:35 PDThttp://ocw.mit.edu/OcwWeb/web/home/home/index.htmMIT Open Course videos and lectures ;Free lecture notes, exams, and videos from MIT.<br /> The lecture videos can be downloaded from youtube.