i have successfully implimented the mutex with in the 1 application and semaphore with in the thread for 4 application and done semaphore within the kernel level it is suceesssfully running
RCS file: app11.c,v
Working file: app11.c
head: 1.1
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total revisions: 1; selected revisions: 1
description:
use mutex for inter thread communication
initialise mutex in main app11 function
use mutex_lock
use mutex_unlock for one application app11
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revision 1.1
date: 2013/07/22 22:16:09; author: amitdalal; state: Exp;
Initial revision
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RCS file: amit.c,v
Working file: amit.c
head: 1.15
branch:
locks: strict
amitdalal: 1.15
access list:
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keyword substitution: kv
total revisions: 15; selected revisions: 15
description:
added function of copy from user
printk the no of byte writen successfully for one quantum
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revision 1.15 locked by: amitdalal;
date: 2013/07/22 22:47:17; author: amitdalal; state: Exp; lines: +5 -5
initialise the semaphore init in scull_open for kernel level synchronisation
call down_interruptible in open
call up in release function
define trim function
calculate nosqs and noq agin in trim function
memset the quantum_size
to free all quantum
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revision 1.14
date: 2013/07/22 22:07:46; author: amitdalal; state: Exp; lines: +102 -40
define fpos variable for fetching file position in read
add fpos to count to calculate the nosqs and noq
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revision 1.13
date: 2013/07/17 00:08:24; author: amitdalal; state: Exp; lines: +0 -1
added some variable for write using llseek
added bpos for position update in copy from user
define bpos flag
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revision 1.12
date: 2013/07/17 00:07:11; author: amitdalal; state: Exp; lines: +0 -1
added variable bpos for position
use flag and j
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revision 1.11
date: 2013/07/17 00:02:29; author: amitdalal; state: Exp; lines: +0 -2
added some variable for reading using llseek
fix the problem related with left out of some first character
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revision 1.10
date: 2013/07/16 23:37:14; author: amitdalal; state: Exp; lines: +244 -194
give call to llseek
define function llseek
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revision 1.9
date: 2013/07/15 21:52:06; author: amitdalal; state: Exp; lines: +67 -41
added loff_t function to .c file
use f_pos for storing the value of pos
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revision 1.8
date: 2013/07/11 17:37:19; author: amitdalal; state: Exp; lines: +53 -38
modified code for write to get required no of qset
add lnoq variable
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revision 1.7
date: 2013/07/11 06:05:24; author: amitdalal; state: Exp; lines: +0 -1
add loop variable in loop for reading
remove some bug in reading loop
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revision 1.6
date: 2013/07/11 05:37:03; author: amitdalal; state: Exp; lines: +4 -4
remove some bug from write function
added loop variable to specify no of quantum in 2nd qset
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revision 1.5
date: 2013/07/11 05:18:10; author: amitdalal; state: Exp; lines: +76 -16
creating read function
use copy to user function
modifing the copy to user function
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revision 1.4
date: 2013/07/11 00:41:53; author: amitdalal; state: Exp; lines: +1 -0
debbuging problem causing kernel crash
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revision 1.3
date: 2013/07/11 00:19:58; author: amitdalal; state: Exp; lines: +11 -7
added variable loop
use while loop for creating multiple qset
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revision 1.2
date: 2013/07/11 00:00:36; author: amitdalal; state: Exp; lines: +25 -4
added the function of quantum written for 8 byte
debugging the problem related to writting of data not 8 byte
fix problem successfully related to written
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revision 1.1
date: 2013/07/10 21:22:34; author: amitdalal; state: Exp;
Initial revision
=============================================================================
RCS file: dd1,v
Working file: dd1
head: 1.9
branch:
locks: strict
amitdalal: 1.9
access list:
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total revisions: 5; selected revisions: 5
description:
adding compilation command for reading in script
gcc
./app1
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revision 1.9 locked by: amitdalal;
date: 2013/07/21 22:56:36; author: amitdalal; state: Exp; lines: +8 -0
added gcc command for 5 application
added executable command for all the 5 application
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revision 1.8
date: 2013/07/18 21:17:28; author: amitdalal; state: Exp; lines: +1 -1
added -lpthread for compilation
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revision 1.7
date: 2013/07/15 21:55:17; author: amitdalal; state: Exp; lines: +4 -3
add unlink node
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revision 1.6
date: 2013/07/11 06:00:23; author: amitdalal; state: Exp; lines: +2 -2
make another node for reading
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revision 1.5
date: 2013/07/11 05:16:48; author: amitdalal; state: Exp;
Initial revision
=============================================================================
RCS file: dd1,v
Working file: dd1
head: 1.4
branch:
locks: strict
amitdalal: 1.4
access list:
symbolic names:
keyword substitution: kv
total revisions: 4; selected revisions: 4
description:
adding compilation command for reading in script
gcc
./app1
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revision 1.4 locked by: amitdalal;
date: 2013/07/19 21:17:28; author: amitdalal; state: Exp; lines: +1 -1
added -lpthread for compilation
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revision 1.3
date: 2013/07/15 21:55:17; author: amitdalal; state: Exp; lines: +4 -3
add unlink node
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revision 1.2
date: 2013/07/11 06:00:23; author: amitdalal; state: Exp; lines: +2 -2
make another node for reading
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revision 1.1
date: 2013/07/11 05:16:48; author: amitdalal; state: Exp;
Initial revision
=============================================================================
:
RCS file: header.h,v
Working file: header.h
head: 1.5
branch:
locks: strict
access list:
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total revisions: 5; selected revisions: 5
description:
added asm header .h for copy from user
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revision 1.5
date: 2013/07/22 22:12:52; author: amitdalal; state: Exp; lines: +3 -1
defined header file for semaphore in kernel level
define semaphore in Sculldev structure
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revision 1.4
date: 2013/07/16 23:38:48; author: amitdalal; state: Exp; lines: +7 -7
include prototype of llseek
define llseek in file operation
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revision 1.3
date: 2013/07/15 21:53:32; author: amitdalal; state: Exp; lines: +5 -2
give prototype of llseek
define it in file operation
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revision 1.2
date: 2013/07/11 17:39:26; author: amitdalal; state: Exp; lines: +5 -5
remove init and cleanup prototype
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revision 1.1
date: 2013/07/10 21:25:25; author: amitdalal; state: Exp;
Initial revision
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