EmbLogic » Joon Vichitra https://www.emblogic.com/blog Embedded System and ARM Training Tue, 03 Mar 2020 13:00:06 +0000 en-US hourly 1 http://wordpress.org/?v=3.9.1 rlog of dev_open dev_release.c ,dev_trim.c ,application.c ,dev_llseek.c ,dev_ioctl.c in character driver(till ioctl) https://www.emblogic.com/blog/12/rlog-of-dev_open-dev_release-c-dev_trim-c-application-c-dev_llseek-c-dev_ioctl-c-in-character-drivertill-ioctl/ https://www.emblogic.com/blog/12/rlog-of-dev_open-dev_release-c-dev_trim-c-application-c-dev_llseek-c-dev_ioctl-c-in-character-drivertill-ioctl/#comments Sat, 20 Dec 2014 08:30:41 +0000 http://www.emblogic.com/blog/?p=11942 Continue reading →]]> RCS file: RCS/dev_open.c,v
Working file: dev_open.c
head: 1.13
branch:
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keyword substitution: kv
total revisions: 13; selected revisions: 13
description:
this file contain our dev_open routine
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revision 1.13 locked by: root;
date: 2014/12/14 17:41:53; author: root; state: Exp; lines: +1 -1
*** empty log message ***
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revision 1.12
date: 2014/12/14 12:07:09; author: root; state: Exp; lines: +2 -1
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revision 1.11
date: 2014/12/14 12:01:07; author: root; state: Exp; lines: +5 -0
*** empty log message ***
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revision 1.10
date: 2014/12/14 11:55:00; author: root; state: Exp; lines: +2 -2
*** empty log message ***
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revision 1.9
date: 2014/12/14 05:32:17; author: root; state: Exp; lines: +2 -2
*** empty log message ***
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revision 1.8
date: 2014/12/09 06:23:47; author: root; state: Exp; lines: +8 -0
put all the printk statement inside #ifdefine DEBUG
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revision 1.7
date: 2014/12/08 10:11:34; author: root; state: Exp; lines: +0 -1
*** empty log message ***
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revision 1.6
date: 2014/12/08 08:28:11; author: root; state: Exp; lines: +1 -1
define int totalq
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revision 1.5
date: 2014/12/02 10:26:21; author: root; state: Exp; lines: +1 -1
testing
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revision 1.4
date: 2014/12/01 11:10:45; author: root; state: Exp; lines: +1 -1
give the lsculldev as argument to dev_trim()
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revision 1.3
date: 2014/12/01 10:55:43; author: root; state: Exp; lines: +2 -0
call dev_trim() if node is open in write only mode
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revision 1.2
date: 2014/12/01 08:49:07; author: root; state: Exp; lines: +2 -0
print begin and end of function
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revision 1.1
date: 2014/12/01 08:38:18; author: root; state: Exp;
Initial revision
=============================================================================

RCS file: RCS/dev_release.c,v
Working file: dev_release.c
head: 1.6
branch:
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root: 1.6
access list:
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keyword substitution: kv
total revisions: 6; selected revisions: 6
description:
this file contain our dev_release routine
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revision 1.6 locked by: root;
date: 2014/12/14 12:01:08; author: root; state: Exp; lines: +1 -0
*** empty log message ***
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revision 1.5
date: 2014/12/14 11:55:01; author: root; state: Exp; lines: +3 -1
*** empty log message ***
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revision 1.4
date: 2014/12/09 06:23:50; author: root; state: Exp; lines: +4 -1
put all the printk statement inside #ifdefine DEBUG
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revision 1.3
date: 2014/12/01 08:51:22; author: root; state: Exp; lines: +3 -1
testing
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revision 1.2
date: 2014/12/01 08:49:11; author: root; state: Exp; lines: +2 -0
print begin and end of function
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revision 1.1
date: 2014/12/01 08:38:51; author: root; state: Exp;
Initial revision
=============================================================================

RCS file: RCS/dev_trim.c,v
Working file: dev_trim.c
head: 1.34
branch:
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total revisions: 34; selected revisions: 34
description:
this file is used to trim the scull
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revision 1.34 locked by: root;
date: 2014/12/19 11:53:53; author: root; state: Exp; lines: +1 -1
*** empty log message ***
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revision 1.33
date: 2014/12/19 11:48:03; author: root; state: Exp; lines: +0 -1
*** empty log message ***
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revision 1.32
date: 2014/12/19 09:58:10; author: root; state: Exp; lines: +1 -1
*** empty log message ***
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revision 1.31
date: 2014/12/14 17:46:59; author: root; state: Exp; lines: +0 -6
*** empty log message ***
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revision 1.30
date: 2014/12/14 11:55:03; author: root; state: Exp; lines: +4 -1
*** empty log message ***
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revision 1.29
date: 2014/12/13 11:15:24; author: root; state: Exp; lines: +4 -2
*** empty log message ***
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revision 1.28
date: 2014/12/11 11:41:51; author: root; state: Exp; lines: +1 -1
done triming
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revision 1.27
date: 2014/12/11 11:39:50; author: root; state: Exp; lines: +5 -2
*** empty log message ***
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revision 1.26
date: 2014/12/11 11:36:55; author: root; state: Exp; lines: +2 -2
testing
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revision 1.25
date: 2014/12/11 11:33:18; author: root; state: Exp; lines: +3 -0
testing
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revision 1.24
date: 2014/12/11 11:29:04; author: root; state: Exp; lines: +24 -6
free all the valid quantum one by one in reverse order
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revision 1.23
date: 2014/12/11 10:38:20; author: root; state: Exp; lines: +1 -1
finding last valid quantum in last scullqset
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revision 1.22
date: 2014/12/11 10:32:57; author: root; state: Exp; lines: +12 -31
find the last and second last scullqset
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revision 1.21
date: 2014/12/09 06:23:53; author: root; state: Exp; lines: +15 -2
put all the printk statement inside #ifdefine DEBUG
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revision 1.20
date: 2014/12/08 10:27:41; author: root; state: Exp; lines: +2 -2
*** empty log message ***
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revision 1.19
date: 2014/12/08 10:25:07; author: root; state: Exp; lines: +18 -4
free the second last scullqset
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revision 1.18
date: 2014/12/08 10:11:36; author: root; state: Exp; lines: +3 -3
*** empty log message ***
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revision 1.17
date: 2014/12/08 10:05:26; author: root; state: Exp; lines: +2 -2
*** empty log message ***
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revision 1.16
date: 2014/12/08 10:03:50; author: root; state: Exp; lines: +3 -3
*** empty log message ***
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revision 1.15
date: 2014/12/08 10:02:40; author: root; state: Exp; lines: +3 -3
*** empty log message ***
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revision 1.14
date: 2014/12/08 09:23:59; author: root; state: Exp; lines: +4 -4
*** empty log message ***
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revision 1.13
date: 2014/12/08 09:21:22; author: root; state: Exp; lines: +5 -3
*** empty log message ***
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revision 1.12
date: 2014/12/08 08:28:30; author: root; state: Exp; lines: +1 -0
*** empty log message ***
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revision 1.11
date: 2014/12/08 07:40:11; author: root; state: Exp; lines: +11 -7
calculate the no of quantum in last qset and free their memory
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revision 1.10
date: 2014/12/08 07:25:47; author: root; state: Exp; lines: +3 -3
*** empty log message ***
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revision 1.9
date: 2014/12/08 07:01:39; author: root; state: Exp; lines: +4 -3
print lv inside the trim
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revision 1.8
date: 2014/12/08 06:49:41; author: root; state: Exp; lines: +15 -16
*** empty log message ***
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revision 1.7
date: 2014/12/08 06:40:04; author: root; state: Exp; lines: +18 -0
reach at the last scullqset and free the memory of all quantam of last scullqset
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revision 1.6
date: 2014/12/01 14:30:34; author: root; state: Exp; lines: +0 -2
omit OUT lable as not use yet
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revision 1.5
date: 2014/12/01 11:27:33; author: root; state: Exp; lines: +0 -1
testing
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revision 1.4
date: 2014/12/01 11:26:05; author: root; state: Exp; lines: +2 -2
testing
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revision 1.3
date: 2014/12/01 11:13:05; author: root; state: Exp; lines: +2 -2
chage the formal argument type from ScullQset to ScullDev
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revision 1.2
date: 2014/12/01 10:51:30; author: root; state: Exp; lines: +2 -0
print begin and end of function
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revision 1.1
date: 2014/12/01 10:43:11; author: root; state: Exp;
Initial revision
=============================================================================

RCS file: RCS/application.c,v
Working file: application.c
head: 1.33
branch:
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keyword substitution: kv
total revisions: 33; selected revisions: 33
description:
This is our application file
It open the node in write only mode
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revision 1.33 locked by: root;
date: 2014/12/19 10:50:57; author: root; state: Exp; lines: +5 -0
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revision 1.32
date: 2014/12/19 09:58:06; author: root; state: Exp; lines: +4 -9
*** empty log message ***
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revision 1.31
date: 2014/12/19 09:42:25; author: root; state: Exp; lines: +9 -5
give SET_Q command through ioctl
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revision 1.30
date: 2014/12/19 08:03:54; author: root; state: Exp; lines: +1 -1
*** empty log message ***
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revision 1.29
date: 2014/12/19 08:01:58; author: root; state: Exp; lines: +1 -1
*** empty log message ***
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revision 1.28
date: 2014/12/19 07:58:01; author: root; state: Exp; lines: +1 -1
*** empty log message ***
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revision 1.27
date: 2014/12/19 07:54:22; author: root; state: Exp; lines: +13 -4
give the command using ioctl
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revision 1.26
date: 2014/12/12 11:15:42; author: root; state: Exp; lines: +3 -1
call the lseek to change the position in file
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revision 1.25
date: 2014/12/12 08:33:11; author: root; state: Exp; lines: +1 -1
*** empty log message ***
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revision 1.24
date: 2014/12/12 08:31:39; author: root; state: Exp; lines: +1 -1
*** empty log message ***
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revision 1.23
date: 2014/12/12 08:30:00; author: root; state: Exp; lines: +1 -1
*** empty log message ***
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revision 1.22
date: 2014/12/12 08:28:48; author: root; state: Exp; lines: +1 -1
*** empty log message ***
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revision 1.21
date: 2014/12/12 08:26:19; author: root; state: Exp; lines: +1 -1
*** empty log message ***
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revision 1.20
date: 2014/12/11 12:05:39; author: root; state: Exp; lines: +1 -1
*** empty log message ***
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revision 1.19
date: 2014/12/11 11:56:26; author: root; state: Exp; lines: +3 -2
*** empty log message ***
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revision 1.18
date: 2014/12/11 08:30:15; author: root; state: Exp; lines: +1 -0
*** empty log message ***
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revision 1.17
date: 2014/12/11 07:15:04; author: root; state: Exp; lines: +1 -1
*** empty log message ***
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revision 1.16
date: 2014/12/11 07:13:54; author: root; state: Exp; lines: +1 -1
*** empty log message ***
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revision 1.15
date: 2014/12/11 06:31:26; author: root; state: Exp; lines: +1 -1
*** empty log message ***
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revision 1.14
date: 2014/12/11 06:28:18; author: root; state: Exp; lines: +2 -0
*** empty log message ***
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revision 1.13
date: 2014/12/09 07:19:06; author: root; state: Exp; lines: +5 -3
print the return value of write and read
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revision 1.12
date: 2014/12/08 10:05:24; author: root; state: Exp; lines: +1 -1
*** empty log message ***
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revision 1.11
date: 2014/12/08 09:48:44; author: root; state: Exp; lines: +1 -1
*** empty log message ***
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revision 1.10
date: 2014/12/08 07:25:37; author: root; state: Exp; lines: +1 -1
write more no. of byte
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revision 1.9
date: 2014/12/05 10:57:38; author: root; state: Exp; lines: +2 -1
read some byte
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revision 1.8
date: 2014/12/05 09:48:21; author: root; state: Exp; lines: +3 -3
write some no of byte
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revision 1.7
date: 2014/12/04 10:33:46; author: root; state: Exp; lines: +2 -2
aomit divide by 8 while calculating no of scullqset
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revision 1.6
date: 2014/12/04 08:32:25; author: root; state: Exp; lines: +1 -1
*** empty log message ***
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revision 1.5
date: 2014/12/04 08:26:13; author: root; state: Exp; lines: +1 -1
testing
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revision 1.4
date: 2014/12/04 08:23:47; author: root; state: Exp; lines: +1 -1
testing
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revision 1.3
date: 2014/12/04 07:20:45; author: root; state: Exp; lines: +16 -4
implement write operation and close fd
open node in read mode and read some byte
close the read fd
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revision 1.2
date: 2014/12/01 06:46:24; author: root; state: Exp; lines: +1 -1
testing
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revision 1.1
date: 2014/12/01 06:28:18; author: root; state: Exp;
Initial revision
=============================================================================

RCS file: RCS/dev_llseek.c,v
Working file: dev_llseek.c
head: 1.1
branch:
locks: strict
root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1; selected revisions: 1
description:
this llseek file
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revision 1.1 locked by: root;
date: 2014/12/13 10:50:06; author: root; state: Exp;
Initial revision
=============================================================================

RCS file: RCS/dev_ioctl.c,v
Working file: dev_ioctl.c
head: 1.6
branch:
locks: strict
root: 1.6
access list:
symbolic names:
keyword substitution: kv
total revisions: 6; selected revisions: 6
description:
This is our ioctl routine
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revision 1.6 locked by: root;
date: 2014/12/19 10:50:59; author: root; state: Exp; lines: +4 -2
*** empty log message ***
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revision 1.5
date: 2014/12/19 09:58:14; author: root; state: Exp; lines: +1 -0
*** empty log message ***
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revision 1.4
date: 2014/12/19 09:42:49; author: root; state: Exp; lines: +7 -0
*** empty log message ***
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revision 1.3
date: 2014/12/19 08:05:19; author: root; state: Exp; lines: +1 -0
*** empty log message ***
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revision 1.2
date: 2014/12/19 07:58:04; author: root; state: Exp; lines: +7 -0
include begin, end printk statement
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revision 1.1
date: 2014/12/19 07:54:46; author: root; state: Exp;
Initial revision
=============================================================================

]]> https://www.emblogic.com/blog/12/rlog-of-dev_open-dev_release-c-dev_trim-c-application-c-dev_llseek-c-dev_ioctl-c-in-character-drivertill-ioctl/feed/ 0 rlog of header.h,file_oper.h,ioctl.h,init.c,exit.c, in character driver(till ioctl) https://www.emblogic.com/blog/12/rlog-of-header-hfile_oper-hioctl-hinit-cexit-c-in-character-drivertill-ioctl/ https://www.emblogic.com/blog/12/rlog-of-header-hfile_oper-hioctl-hinit-cexit-c-in-character-drivertill-ioctl/#comments Sat, 20 Dec 2014 08:25:59 +0000 http://www.emblogic.com/blog/?p=11928 Continue reading →]]> RCS file: RCS/header.h,v
Working file: header.h
head: 1.17
branch:
locks: strict
root: 1.17
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keyword substitution: kv
total revisions: 17;    selected revisions: 17
description:
This is main header file
All the required header file are include here

revision 1.16
date: 2014/12/19 07:52:35;  author: root;  state: Exp;  lines: +4 -1
include ioctl.h
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revision 1.15
date: 2014/12/13 09:28:18;  author: root;  state: Exp;  lines: +1 -1
include semaphore.h
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.
.
.
revision 1.3
date: 2014/11/25 17:31:08;  author: root;  state: Exp;  lines: +7 -0
define MINOR_NO and NOD macro
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revision 1.2
date: 2014/11/24 09:56:10;  author: root;  state: Exp;  lines: +1 -0
include linux/fs.h
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revision 1.1
date: 2014/11/23 10:35:10;  author: root;  state: Exp;
Initial revision
=============================================================================
RCS file: RCS/file_oper.h,v
Working file: file_oper.h
head: 1.5
branch:
locks: strict
root: 1.5
access list:
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keyword substitution: kv
total revisions: 5; selected revisions: 5
description:
this is file_operation file where we will map our file related routine
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revision 1.5 locked by: root;
date: 2014/12/19 07:53:18; author: root; state: Exp; lines: +2 -1
mapped the unlocked_ioctl with our routine “dev_ioctl”
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.
.
.
revision 1.2
date: 2014/12/01 08:36:49; author: root; state: Exp; lines: +8 -2
mapped the open call to our routine(dev_open)
mapped the release(close) call to our routine
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revision 1.1
date: 2014/12/01 07:00:53; author: root; state: Exp;
Initial revision
=======================================================================

RCS file: RCS/declaration.h,v
Working file: declaration.h
head: 1.26
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root: 1.26
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total revisions: 26; selected revisions: 26
description:
this is Declaration file where prototype of function will be given
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revision 1.26 locked by: root;
date: 2014/12/19 07:52:49; author: root; state: Exp; lines: +1 -0
gave the prototype for dev_ioctl()
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revision 1.25
date: 2014/12/13 09:28:32; author: root; state: Exp; lines: +1 -0
declare variable ‘sem’ of type struct semaphore inside struct Sculldev
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revision 1.24
date: 2014/12/12 11:15:16; author: root; state: Exp; lines: +2 -0
gave the prototype for dev_llseek()

.
.
revision 1.3
date: 2014/11/24 08:22:02; author: root; state: Exp; lines: +2 -2
make the initialization_func extern
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revision 1.2
date: 2014/11/24 07:30:42; author: root; state: Exp; lines: +2 -2
omit the word extern from the function declaration
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revision 1.1
date: 2014/11/23 10:35:57; author: root; state: Exp;
Initial revision
==================================================================
RCS file: RCS/init.c,v
Working file: init.c
head: 1.33
branch:
locks: strict
root: 1.31
access list:
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keyword substitution: kv
total revisions: 31; selected revisions: 31
description:
this is intialiazation file
module_init is used here
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revision 1.31
date: 2014/12/13 09:29:20; author: root; state: Exp; lines: +2 -0
implement sema_init() after cdev_init()
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revision 1.30
date: 2014/12/09 06:23:09; author: root; state: Exp; lines: +23 -0
put all the printk statement inside #ifdefine DEBUG
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.
.
.
revision 1.3
date: 2014/11/24 07:31:24; author: root; state: Exp; lines: +2 -2
make initialization and cleanup function static
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revision 1.2
date: 2014/11/24 07:16:36; author: root; state: Exp; lines: +5 -0
define the exit function in the init file as not getting the desire output
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revision 1.1
date: 2014/11/23 10:36:49; author: root; state: Exp;
Initial revision
========================================================
RCS file: RCS/exit.c,v
Working file: exit.c
head: 1.13

total revisions: 13; selected revisions: 13
description:
this is cleanup file
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revision 1.13 locked by: root;
date: 2014/12/09 06:23:37; author: root; state: Exp; lines: +10 -0
put all the printk statement inside #ifdefine DEBUG
—–
revision 1.11
date: 2014/12/01 08:48:56; author: root; state: Exp; lines: +2 -0
print begin and end of function
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revision 1.10
date: 2014/11/29 10:45:27; author: root; state: Exp; lines: +3 -1
delete all the device using cdev_del
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.
.
.
revision 1.2
date: 2014/11/24 08:24:38; author: root; state: Exp; lines: +1 -1
put \n at the end of printk statement
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revision 1.1
date: 2014/11/23 10:37:26; author: root; state: Exp;
Initial revision

]]> https://www.emblogic.com/blog/12/rlog-of-header-hfile_oper-hioctl-hinit-cexit-c-in-character-drivertill-ioctl/feed/ 0 communication between client and server(Both on different system) through socket with Domain-AF_INET https://www.emblogic.com/blog/11/communication-between-client-and-serverboth-on-different-system-through-socket-and-domain-af_inet/ https://www.emblogic.com/blog/11/communication-between-client-and-serverboth-on-different-system-through-socket-and-domain-af_inet/#comments Thu, 06 Nov 2014 05:33:36 +0000 http://www.emblogic.com/blog/?p=11696 Continue reading →]]> RCS file: RCS/server.c,v
Working file: server.c
head: 1.6
branch:
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keyword substitution: kv
total revisions: 6;    selected revisions: 6
description:
main server file
Include socket.h and types.h
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revision 1.6
date: 2014/11/06 05:25:09;  author: root;  state: Exp;  lines: +10 -7
make server in while 1
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revision 1.5
date: 2014/11/05 07:16:21;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
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revision 1.4
date: 2014/11/04 12:11:14;  author: root;  state: Exp;  lines: +1 -0
server write after reading from client
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revision 1.3
date: 2014/11/04 12:02:06;  author: root;  state: Exp;  lines: +1 -0
use perror after listen call
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revision 1.2
date: 2014/11/04 12:00:45;  author: root;  state: Exp;  lines: +32 -1
done
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revision 1.1
date: 2014/11/04 10:35:37;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/client.c,v
Working file: client.c
head: 1.4
branch:
locks: strict
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keyword substitution: kv
total revisions: 4;    selected revisions: 4
description:
1st client file
include header file
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revision 1.4
date: 2014/11/06 05:25:29;  author: root;  state: Exp;  lines: +11 -5
usr will enter the data to send
“close” will terminate the communication
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revision 1.3
date: 2014/11/04 12:11:33;  author: root;  state: Exp;  lines: +3 -0
client read after writing
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revision 1.2
date: 2014/11/04 12:00:54;  author: root;  state: Exp;  lines: +16 -1
done
—————————-
revision 1.1
date: 2014/11/04 10:36:10;  author: root;  state: Exp;
Initial revision
=============================================================================

]]> https://www.emblogic.com/blog/11/communication-between-client-and-serverboth-on-different-system-through-socket-and-domain-af_inet/feed/ 0 Done: client-server using AF_INET on the same system using loopback https://www.emblogic.com/blog/11/done-client-server-using-af_inet/ https://www.emblogic.com/blog/11/done-client-server-using-af_inet/#comments Tue, 04 Nov 2014 12:06:36 +0000 http://www.emblogic.com/blog/?p=11683 Continue reading →]]> RCS file: RCS/server.c,v
Working file: server.c
head: 1.3
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 3;    selected revisions: 3
description:
main server file
Include socket.h and types.h
—————————-
revision 1.3
date: 2014/11/04 12:02:06;  author: root;  state: Exp;  lines: +1 -0
use perror after listen call
—————————-
revision 1.2
date: 2014/11/04 12:00:45;  author: root;  state: Exp;  lines: +32 -1
done
—————————-
revision 1.1
date: 2014/11/04 10:35:37;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/client.c,v
Working file: client.c
head: 1.2
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 2;    selected revisions: 2
description:
1st client file
include header file
—————————-
revision 1.2
date: 2014/11/04 12:00:54;  author: root;  state: Exp;  lines: +16 -1
done
—————————-
revision 1.1
date: 2014/11/04 10:36:10;  author: root;  state: Exp;
Initial revision
==================================================================

]]> https://www.emblogic.com/blog/11/done-client-server-using-af_inet/feed/ 0 Client-server using socket (AF_UNIX) https://www.emblogic.com/blog/11/client-server-using-socket-af_unix/ https://www.emblogic.com/blog/11/client-server-using-socket-af_unix/#comments Mon, 03 Nov 2014 13:36:34 +0000 http://www.emblogic.com/blog/?p=11681 Continue reading →]]> RCS file: RCS/client.c,v
Working file: client.c
head: 1.1
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
client requesting to server via socket
—————————-
revision 1.1
date: 2014/11/03 13:31:01;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/server.c,v
Working file: server.c
head: 1.1
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
server file for the socket using AF_UNIX
—————————-
revision 1.1
date: 2014/11/03 13:29:21;  author: root;  state: Exp;
Initial revision
=============================================================================

]]> https://www.emblogic.com/blog/11/client-server-using-socket-af_unix/feed/ 0 Client,server and process communication project using signals https://www.emblogic.com/blog/09/clientserver-and-process-communication-project-using-signals/ https://www.emblogic.com/blog/09/clientserver-and-process-communication-project-using-signals/#comments Sat, 27 Sep 2014 13:41:24 +0000 http://www.emblogic.com/blog/?p=11534 Continue reading →]]> Welcome to the Project!!
n1=12, n2=23 Performing addition action
In Server:Sum=35
In CLIENT: Result=35
n1=20, n2=8 Performing Subtraction action
In Server:Sub=12
In CLIENT2: Result=12
n1=5, n2=8 Performing Multiplication action
In Server:Mul=40
In CLIENT3: Result=40

RCS file: RCS/server.c,v
Working file: server.c
head: 1.27
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 27;    selected revisions: 27
description:
program which act as a server to take the request of client
done:created one child process and a pipe
done:replace the child process with client1.c and send pfd[1] to the client as a command line argument
—————————-
revision 1.27
date: 2014/09/27 13:32:08;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.26
date: 2014/09/27 13:30:56;  author: root;  state: Exp;  lines: +1 -1
fix child exit normally
—————————-
revision 1.25
date: 2014/09/27 13:26:47;  author: root;  state: Exp;  lines: +5 -11
remove extra printf
—————————-
revision 1.24
date: 2014/09/27 13:20:47;  author: root;  state: Exp;  lines: +19 -6
create 3rd client and process to perform multiplication
—————————-
revision 1.23
date: 2014/09/27 13:07:11;  author: root;  state: Exp;  lines: +2 -2
include client 2 also
—————————-
revision 1.22
date: 2014/09/27 12:59:47;  author: root;  state: Exp;  lines: +1 -1
send signal to client after reading the result from process pipe and writing the same into client pipe
—————————-
revision 1.21
date: 2014/09/27 12:54:04;  author: root;  state: Exp;  lines: +4 -2
get the pid of child in parent process inorder to send the signal using kill
—————————-
revision 1.20
date: 2014/09/27 12:48:34;  author: root;  state: Exp;  lines: +7 -6
get the id of process child into pid1
—————————-
revision 1.19
date: 2014/09/27 05:37:45;  author: root;  state: Exp;  lines: +1 -0
check char variable in switch case
—————————-
revision 1.18
date: 2014/09/27 05:34:19;  author: root;  state: Exp;  lines: +1 -2
*** empty log message ***
—————————-
revision 1.17
date: 2014/09/27 05:27:32;  author: root;  state: Exp;  lines: +1 -1
change the position of signal handler
—————————-
revision 1.16
date: 2014/09/27 05:25:13;  author: root;  state: Exp;  lines: +1 -1
use pause to synchronise
—————————-
revision 1.15
date: 2014/09/27 05:18:07;  author: root;  state: Exp;  lines: +2 -2
change the lable1 in front of fork
—————————-
revision 1.14
date: 2014/09/27 05:12:04;  author: root;  state: Exp;  lines: +21 -3
create 1 client and 1 process for subtraction operation
—————————-
revision 1.13
date: 2014/09/26 19:00:34;  author: root;  state: Exp;  lines: +0 -1
*** empty log message ***
—————————-
revision 1.12
date: 2014/09/26 18:55:32;  author: root;  state: Exp;  lines: +2 -0
write the result into client pipe
—————————-
revision 1.11
date: 2014/09/26 18:51:04;  author: root;  state: Exp;  lines: +5 -1
define function to handle sigusr1
—————————-
revision 1.10
date: 2014/09/26 18:46:22;  author: root;  state: Exp;  lines: +2 -2
use pause()
—————————-
revision 1.9
date: 2014/09/26 17:57:33;  author: root;  state: Exp;  lines: +30 -86
remake the program without using any sleep instruction
use structure to read the data from client
write the num1 and num2 into process adder pipe
—————————-
revision 1.8
date: 2014/09/24 14:24:48;  author: root;  state: Exp;  lines: +0 -1
change the o/p appearence
—————————-
revision 1.7
date: 2014/09/24 14:12:17;  author: root;  state: Exp;  lines: +42 -10
read result from p1,p2,p3
—————————-
revision 1.6
date: 2014/09/24 13:08:55;  author: root;  state: Exp;  lines: +17 -3
create one more child process to call process1.c
—————————-
revision 1.5
date: 2014/09/24 09:47:40;  author: root;  state: Exp;  lines: +31 -3
read the data from all three client
do switch case to perform different operation
—————————-
revision 1.4
date: 2014/09/24 08:38:36;  author: root;  state: Exp;  lines: +6 -6
create 3 child of same parent to call diff-2 client
—————————-
revision 1.3
date: 2014/09/24 08:14:31;  author: root;  state: Exp;  lines: +18 -7
crate another pipe for communication between server and process
—————————-
revision 1.2
date: 2014/09/24 06:39:04;  author: root;  state: Exp;  lines: +3 -0
read the data through pipe sent by client1
—————————-
revision 1.1
date: 2014/09/24 06:22:18;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/client1.c,v
Working file: client1.c
head: 1.15
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 15;    selected revisions: 15
description:
client process which will replace the child process
done:create the structure for operand and operation, get the pipe write fd as a command line argument
—————————-
revision 1.15
date: 2014/09/27 13:21:15;  author: root;  state: Exp;  lines: +0 -2
remove unwanted printf
—————————-
revision 1.14
date: 2014/09/27 13:07:36;  author: root;  state: Exp;  lines: +1 -1
don’t work  by ignoring so get back on handling the SIGUSR1
—————————-
revision 1.13
date: 2014/09/27 13:03:41;  author: root;  state: Exp;  lines: +1 -2
test on signal ignore
—————————-
revision 1.12
date: 2014/09/27 13:00:28;  author: root;  state: Exp;  lines: +6 -1
define the signal handler and use pause till the client get the result after writing the data into pipe
—————————-
revision 1.11
date: 2014/09/27 12:54:35;  author: root;  state: Exp;  lines: +1 -0
get pid of itself
—————————-
revision 1.10
date: 2014/09/27 05:34:35;  author: root;  state: Exp;  lines: +1 -0
*** empty log message ***
—————————-
revision 1.9
date: 2014/09/27 05:25:49;  author: root;  state: Exp;  lines: +1 -0
send signal to parent using kill
—————————-
revision 1.8
date: 2014/09/26 18:55:49;  author: root;  state: Exp;  lines: +2 -1
read the result from the server end
—————————-
revision 1.7
date: 2014/09/26 18:46:32;  author: root;  state: Exp;  lines: +1 -1
*** empty log message ***
—————————-
revision 1.6
date: 2014/09/26 17:59:29;  author: root;  state: Exp;  lines: +15 -8
use structure to write the data into pipe
—————————-
revision 1.5
date: 2014/09/24 14:25:10;  author: root;  state: Exp;  lines: +0 -2
change the o/p appearance
—————————-
revision 1.4
date: 2014/09/24 09:48:23;  author: root;  state: Exp;  lines: +6 -11
write operater and two operand into pipe
—————————-
revision 1.3
date: 2014/09/24 08:15:04;  author: root;  state: Exp;  lines: +3 -1
send the data to server and exit()
—————————-
revision 1.2
date: 2014/09/24 06:39:32;  author: root;  state: Exp;  lines: +5 -1
write the data into pipe so that server can read that
—————————-
revision 1.1
date: 2014/09/24 06:24:50;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/client2.c,v
Working file: client2.c
head: 1.10
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 10;    selected revisions: 10
description:
create client 2 to do the different mathematical operation
—————————-
revision 1.10
date: 2014/09/27 13:21:39;  author: root;  state: Exp;  lines: +1 -4
remove unwanted printf
—————————-
revision 1.9
date: 2014/09/27 13:10:11;  author: root;  state: Exp;  lines: +3 -1
remove syntex error
—————————-
revision 1.8
date: 2014/09/27 13:08:14;  author: root;  state: Exp;  lines: +3 -1
write the signal handler
—————————-
revision 1.7
date: 2014/09/27 12:49:18;  author: root;  state: Exp;  lines: +1 -0
use signal
—————————-
revision 1.6
date: 2014/09/27 05:34:37;  author: root;  state: Exp;  lines: +1 -0
*** empty log message ***
—————————-
revision 1.5
date: 2014/09/27 05:26:00;  author: root;  state: Exp;  lines: +2 -1
send signal SIGUSR1 to server
—————————-
revision 1.4
date: 2014/09/27 05:12:30;  author: root;  state: Exp;  lines: +19 -8
client for subtraction
—————————-
revision 1.3
date: 2014/09/24 16:13:23;  author: root;  state: Exp;  lines: +0 -2
*** empty log message ***
—————————-
revision 1.2
date: 2014/09/24 09:48:57;  author: root;  state: Exp;  lines: +7 -15
write into pipe
—————————-
revision 1.1
date: 2014/09/24 08:39:12;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/client3.c,v
Working file: client3.c
head: 1.4
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 4;    selected revisions: 4
description:
create client 3
—————————-
revision 1.4
date: 2014/09/27 13:21:49;  author: root;  state: Exp;  lines: +21 -7
create client for multiplication with signal handler after writing the data
—————————-
revision 1.3
date: 2014/09/24 14:25:40;  author: root;  state: Exp;  lines: +0 -2
change the o/p appearance
—————————-
revision 1.2
date: 2014/09/24 09:49:23;  author: root;  state: Exp;  lines: +6 -13
whrite into pipe
—————————-
revision 1.1
date: 2014/09/24 08:39:54;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/process1.c,v
Working file: process1.c
head: 1.6
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 6;    selected revisions: 6
description:
this is process program which do the operation on data and return the result
—————————-
revision 1.6
date: 2014/09/27 13:26:59;  author: root;  state: Exp;  lines: +0 -1
remove extra printf
—————————-
revision 1.5
date: 2014/09/26 18:46:37;  author: root;  state: Exp;  lines: +2 -0
send signal using kill
—————————-
revision 1.4
date: 2014/09/26 17:59:53;  author: root;  state: Exp;  lines: +6 -16
get the num1 and num2 from server and perform the addition operation
wrirte back the sum into pipe
—————————-
revision 1.3
date: 2014/09/24 14:25:49;  author: root;  state: Exp;  lines: +0 -2
change the o/p appearance
—————————-
revision 1.2
date: 2014/09/24 14:13:02;  author: root;  state: Exp;  lines: +8 -3
write the result into pipe in interger form
—————————-
revision 1.1
date: 2014/09/24 13:09:17;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/process2.c,v
Working file: process2.c
head: 1.5
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 5;    selected revisions: 5
description:
process to perform – operation and writing the result back into the pipe
—————————-
revision 1.5
date: 2014/09/27 13:27:12;  author: root;  state: Exp;  lines: +0 -1
remove extra printf
—————————-
revision 1.4
date: 2014/09/27 05:13:57;  author: root;  state: Exp;  lines: +1 -1
use sub instead of sum
—————————-
revision 1.3
date: 2014/09/27 05:12:41;  author: root;  state: Exp;  lines: +7 -15
processing end for subtraction
—————————-
revision 1.2
date: 2014/09/24 14:25:52;  author: root;  state: Exp;  lines: +0 -2
change the o/p appearance
—————————-
revision 1.1
date: 2014/09/24 14:14:17;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/process3.c,v
Working file: process3.c
head: 1.3
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 3;    selected revisions: 3
description:
process 3 to perform multiplication
—————————-
revision 1.3
date: 2014/09/27 13:22:13;  author: root;  state: Exp;  lines: +7 -16
process 3 for multiplication
—————————-
revision 1.2
date: 2014/09/24 14:25:55;  author: root;  state: Exp;  lines: +0 -2
change the o/p appearance
—————————-
revision 1.1
date: 2014/09/24 14:14:52;  author: root;  state: Exp;
Initial revision
=============================================================================

]]> https://www.emblogic.com/blog/09/clientserver-and-process-communication-project-using-signals/feed/ 0 client,server and process communication via pipes https://www.emblogic.com/blog/09/clientserver-and-process-communication-via-pipes/ https://www.emblogic.com/blog/09/clientserver-and-process-communication-via-pipes/#comments Wed, 24 Sep 2014 14:33:41 +0000 http://www.emblogic.com/blog/?p=11525 Continue reading →]]> RCS file: RCS/server.c,v
Working file: server.c
head: 1.8
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 8;    selected revisions: 8
description:
program which act as a server to take the request of client
done:created one child process and a pipe
done:replace the child process with client1.c and send pfd[1] to the client as a command line argument
—————————-
revision 1.8
date: 2014/09/24 14:24:48;  author: root;  state: Exp;  lines: +0 -1
change the o/p appearence
—————————-
revision 1.7
date: 2014/09/24 14:12:17;  author: root;  state: Exp;  lines: +42 -10
read result from p1,p2,p3
—————————-
revision 1.6
date: 2014/09/24 13:08:55;  author: root;  state: Exp;  lines: +17 -3
create one more child process to call process1.c
—————————-
revision 1.5
date: 2014/09/24 09:47:40;  author: root;  state: Exp;  lines: +31 -3
read the data from all three client
do switch case to perform different operation
—————————-
revision 1.4
date: 2014/09/24 08:38:36;  author: root;  state: Exp;  lines: +6 -6
create 3 child of same parent to call diff-2 client
—————————-
revision 1.3
date: 2014/09/24 08:14:31;  author: root;  state: Exp;  lines: +18 -7
crate another pipe for communication between server and process
—————————-
revision 1.2
date: 2014/09/24 06:39:04;  author: root;  state: Exp;  lines: +3 -0
read the data through pipe sent by client1
—————————-
revision 1.1
date: 2014/09/24 06:22:18;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/client1.c,v
Working file: client1.c
head: 1.5
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 5;    selected revisions: 5
description:
client process which will replace the child process
done:create the structure for operand and operation, get the pipe write fd as a command line argument
—————————-
revision 1.5
date: 2014/09/24 14:25:10;  author: root;  state: Exp;  lines: +0 -2
change the o/p appearance
—————————-
revision 1.4
date: 2014/09/24 09:48:23;  author: root;  state: Exp;  lines: +6 -11
write operater and two operand into pipe
—————————-
revision 1.3
date: 2014/09/24 08:15:04;  author: root;  state: Exp;  lines: +3 -1
send the data to server and exit()
—————————-
revision 1.2
date: 2014/09/24 06:39:32;  author: root;  state: Exp;  lines: +5 -1
write the data into pipe so that server can read that
—————————-
revision 1.1
date: 2014/09/24 06:24:50;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/client2.c,v
Working file: client2.c
head: 1.2
branch:
locks: strict
root: 1.2
access list:
symbolic names:
keyword substitution: kv
total revisions: 2;    selected revisions: 2
description:
create client 2 to do the different mathematical operation
—————————-
revision 1.2    locked by: root;
date: 2014/09/24 09:48:57;  author: root;  state: Exp;  lines: +7 -15
write into pipe
—————————-
revision 1.1
date: 2014/09/24 08:39:12;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/client3.c,v
Working file: client3.c
head: 1.3
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 3;    selected revisions: 3
description:
create client 3
—————————-
revision 1.3
date: 2014/09/24 14:25:40;  author: root;  state: Exp;  lines: +0 -2
change the o/p appearance
—————————-
revision 1.2
date: 2014/09/24 09:49:23;  author: root;  state: Exp;  lines: +6 -13
whrite into pipe
—————————-
revision 1.1
date: 2014/09/24 08:39:54;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/process1.c,v
Working file: process1.c
head: 1.3
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 3;    selected revisions: 3
description:
this is process program which do the operation on data and return the result
—————————-
revision 1.3
date: 2014/09/24 14:25:49;  author: root;  state: Exp;  lines: +0 -2
change the o/p appearance
—————————-
revision 1.2
date: 2014/09/24 14:13:02;  author: root;  state: Exp;  lines: +8 -3
write the result into pipe in interger form
—————————-
revision 1.1
date: 2014/09/24 13:09:17;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/process2.c,v
Working file: process2.c
head: 1.2
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 2;    selected revisions: 2
description:
process to perform – operation and writing the result back into the pipe
—————————-
revision 1.2
date: 2014/09/24 14:25:52;  author: root;  state: Exp;  lines: +0 -2
change the o/p appearance
—————————-
revision 1.1
date: 2014/09/24 14:14:17;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/process3.c,v
Working file: process3.c
head: 1.2
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 2;    selected revisions: 2
description:
process 3 to perform multiplication
—————————-
revision 1.2
date: 2014/09/24 14:25:55;  author: root;  state: Exp;  lines: +0 -2
change the o/p appearance
—————————-
revision 1.1
date: 2014/09/24 14:14:52;  author: root;  state: Exp;
Initial revision
=============================================================================

]]> https://www.emblogic.com/blog/09/clientserver-and-process-communication-via-pipes/feed/ 0 process replacement followed by inter process comm. using file https://www.emblogic.com/blog/09/process-replacement-followed-by-inter-process-comm-using-file/ https://www.emblogic.com/blog/09/process-replacement-followed-by-inter-process-comm-using-file/#comments Mon, 22 Sep 2014 13:17:41 +0000 http://www.emblogic.com/blog/?p=11516 Continue reading →]]> This is the output:

[root@localhost ipc]# ./p_comm
File Open Successfully
This is Parent with id=31340
This is child with id=31341
This is a new program which replaced the child
Write By Child:: Success
Read by Parent: Success
    Child Said:Hello Parent
Write by Parent: Success
Read By Child:: Success
    Parent said:Hi Child How are you?
Write By Child:: Success
Read by Parent: Success
    Child Said:I am Fine. U Tell?
Write by Parent: Success
Read By Child:: Success
    Parent said:We are also fine.Ok Bye
Child exit successfully and code is 0

Log File

RCS file: RCS/p_comm.c,v
Working file: p_comm.c
head: 1.4
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 4;    selected revisions: 4
description:
program to communicate between two process through a file
done- opening a file in rdwr mode
convert int fd into string to make compatiple with execl argument
—————————-
revision 1.4
date: 2014/09/22 12:46:24;  author: root;  state: Exp;  lines: +13 -3
done:both read and write by parent in the same file
Note: Before executing this program make sure that “child_comm.c” file must be in the same directory
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revision 1.3
date: 2014/09/22 12:10:56;  author: root;  state: Exp;  lines: +9 -4
1st read by the parent and then reply back to child by writing into the same file
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revision 1.2
date: 2014/09/22 11:53:56;  author: root;  state: Exp;  lines: +10 -4
read the message written by child in a file
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revision 1.1
date: 2014/09/22 11:23:57;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/child_comm.c,v
Working file: child_comm.c
head: 1.4
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 4;    selected revisions: 4
description:
program which will replace the child to do inter process comm through file
get fd through argv[0] and than convert into integer using atoi
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revision 1.4
date: 2014/09/22 12:48:25;  author: root;  state: Exp;  lines: +12 -2
done:child repalace itself with this file using execl and this program then communicate with parent
note:this program is linked with p_comm.c
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revision 1.3
date: 2014/09/22 12:11:48;  author: root;  state: Exp;  lines: +9 -2
1st write the msg for parent and then read the msg from parent using the same file
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revision 1.2
date: 2014/09/22 11:40:06;  author: root;  state: Exp;  lines: +4 -3
got message which is to be written in file through argv[1]
write the message into file
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revision 1.1
date: 2014/09/22 11:32:27;  author: root;  state: Exp;
Initial revision
=============================================================================

]]> https://www.emblogic.com/blog/09/process-replacement-followed-by-inter-process-comm-using-file/feed/ 0 Process replacement using execl https://www.emblogic.com/blog/09/process-replacement-using-execl/ https://www.emblogic.com/blog/09/process-replacement-using-execl/#comments Mon, 22 Sep 2014 13:09:46 +0000 http://www.emblogic.com/blog/?p=11514 Continue reading →]]> RCS file: p_replace.c,v
Working file: p_replace.c
head: 1.2
branch:
locks: strict
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keyword substitution: kv
total revisions: 2;    selected revisions: 2
description:
program to replace the child process using execl()
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revision 1.2
date: 2014/09/22 10:22:30;  author: root;  state: Exp;  lines: +9 -1
use wait statement so that parent will wait till the child completed its execution
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revision 1.1
date: 2014/09/22 10:06:47;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: child.c,v
Working file: child.c
head: 1.1
branch:
locks: strict
access list:
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keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
sample program which replace the child when call by child through execl()
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revision 1.1
date: 2014/09/22 10:06:07;  author: root;  state: Exp;
Initial revision
=============================================================================

]]> https://www.emblogic.com/blog/09/process-replacement-using-execl/feed/ 0 Completed creating a new process using fork, how orphan process works, wait by parent till child exit https://www.emblogic.com/blog/09/completed-creating-a-new-process-using-fork-how-orphan-process-works-wait-by-parent-till-child-exit/ https://www.emblogic.com/blog/09/completed-creating-a-new-process-using-fork-how-orphan-process-works-wait-by-parent-till-child-exit/#comments Mon, 22 Sep 2014 13:03:41 +0000 http://www.emblogic.com/blog/?p=11512 Continue reading →]]> RCS file: fork.c,v
Working file: fork.c
head: 1.4
branch:
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keyword substitution: kv
total revisions: 4;    selected revisions: 4
description:
program to create a duplicate process using fork
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revision 1.4
date: 2014/09/18 17:37:44;  author: root;  state: Exp;  lines: +2 -0
print child and its parent id
check that orphan process have 1 as a parent id
use sleep command to make sure that child not become orphan
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revision 1.3
date: 2014/09/18 17:34:40;  author: root;  state: Exp;  lines: +2 -2
get pid of child
print pid of parent
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revision 1.2
date: 2014/09/18 17:30:58;  author: root;  state: Exp;  lines: +11 -1
create a child process using fork
define the body of child and parent using if and else
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revision 1.1
date: 2014/09/18 17:27:22;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: fork2.c,v
Working file: fork2.c
head: 1.3
branch:
locks: strict
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keyword substitution: kv
total revisions: 3;    selected revisions: 3
description:
use multiple fork to create more child and parent process
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revision 1.3
date: 2014/09/19 12:49:25;  author: root;  state: Exp;  lines: +5 -0
*** empty log message ***
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revision 1.2
date: 2014/09/19 12:03:53;  author: root;  state: Exp;  lines: +2 -3
create more process using multiple fork statement
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revision 1.1
date: 2014/09/19 11:11:06;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: orphan.c,v
Working file: orphan.c
head: 1.4
branch:
locks: strict
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total revisions: 4;    selected revisions: 4
description:
program to make a process orphan
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revision 1.4
date: 2014/09/20 09:36:08;  author: root;  state: Exp;  lines: +4 -2
make child orphan and verify with output
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revision 1.3
date: 2014/09/19 13:54:25;  author: root;  state: Exp;  lines: +19 -10
use if else to notify when the child became orphan
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revision 1.2
date: 2014/09/19 13:42:45;  author: root;  state: Exp;  lines: +4 -3
get child id
print parent id
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revision 1.1
date: 2014/09/19 13:16:57;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: wait.c,v
Working file: wait.c
head: 1.1
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
parent will wait till the child exit()
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revision 1.1
date: 2014/09/20 14:26:58;  author: root;  state: Exp;
Initial revision
=============================================================================

]]> https://www.emblogic.com/blog/09/completed-creating-a-new-process-using-fork-how-orphan-process-works-wait-by-parent-till-child-exit/feed/ 0 Getting start with Pointer https://www.emblogic.com/blog/09/getting-start-with-pointer/ https://www.emblogic.com/blog/09/getting-start-with-pointer/#comments Thu, 04 Sep 2014 00:07:41 +0000 http://www.emblogic.com/blog/?p=11472 Continue reading →]]> RCS file: RCS/basic_pointer.c,v
Working file: basic_pointer.c
head: 1.1
branch:
locks: strict
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total revisions: 1;    selected revisions: 1
description:
basic pointer to under stand
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revision 1.1
date: 2014/08/29 09:22:19;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/call_by_ref.c,v
Working file: call_by_ref.c
head: 1.1
branch:
locks: strict
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keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
e.g for call by reference
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revision 1.1
date: 2014/08/29 09:22:19;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/get_ascii.c,v
Working file: get_ascii.c
head: 1.1
branch:
locks: strict
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keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
to get ascii value
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revision 1.1
date: 2014/08/29 09:20:49;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/p2p.c,v
Working file: p2p.c
head: 1.1
branch:
locks: strict
root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
pointer 2 pointer
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revision 1.1    locked by: root;
date: 2014/08/29 09:20:01;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/ptr_incriment.c,v
Working file: ptr_incriment.c
head: 1.1
branch:
locks: strict
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total revisions: 1;    selected revisions: 1
description:
good eg to inc and dec the pointer
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revision 1.1
date: 2014/08/29 09:23:51;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/ptr_str_match.c,v
Working file: ptr_str_match.c
head: 1.1
branch:
locks: strict
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keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
string match using pointer
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revision 1.1
date: 2014/08/29 09:23:51;  author: root;  state: Exp;
Initial revision
=============================================================================

]]> https://www.emblogic.com/blog/09/getting-start-with-pointer/feed/ 0 User defined string header file using pointer https://www.emblogic.com/blog/09/user-defined-string-header-file-using-pointer/ https://www.emblogic.com/blog/09/user-defined-string-header-file-using-pointer/#comments Wed, 03 Sep 2014 15:54:06 +0000 http://www.emblogic.com/blog/?p=11470 Continue reading →]]> RCS file: RCS/my_string.c,v
Working file: my_string.c
head: 1.1
branch:
locks: strict
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keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
My String Header File
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revision 1.1
date: 2014/08/27 10:58:21;  author: root;  state: Exp;
Initial revision
=============================================================================

]]> https://www.emblogic.com/blog/09/user-defined-string-header-file-using-pointer/feed/ 0 Structure assignment upto 3 question https://www.emblogic.com/blog/09/structure-assignment-upto-3-question/ https://www.emblogic.com/blog/09/structure-assignment-upto-3-question/#comments Wed, 03 Sep 2014 15:24:56 +0000 http://www.emblogic.com/blog/?p=11467 Continue reading →]]> RCS file: RCS/01_structure.c,v
Working file: 01_structure.c
head: 1.2
branch:
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total revisions: 2;    selected revisions: 2
description:
1st question of structure assignment
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revision 1.2
date: 2014/09/02 10:08:42;  author: root;  state: Exp;  lines: +8 -7
student data using structure pointer
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revision 1.1
date: 2014/09/02 09:48:03;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/02_distance.c,v
Working file: 02_distance.c
head: 1.1
branch:
locks: strict
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total revisions: 1;    selected revisions: 1
description:
adding two distance and then convert into meter and cm
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revision 1.1
date: 2014/09/02 13:51:26;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/03_distance_ptr.c,v
Working file: 03_distance_ptr.c
head: 1.1
branch:
locks: strict
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keyword substitution: kv
total revisions: 1;    selected revisions: 1
description:
distance add and conversition unsing pointer
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revision 1.1
date: 2014/09/02 17:59:29;  author: root;  state: Exp;
Initial revision
=============================================================================

]]> https://www.emblogic.com/blog/09/structure-assignment-upto-3-question/feed/ 0 Completed MDC (Multiple data compression) in ‘c’ https://www.emblogic.com/blog/09/completed-mdc-multiple-data-compression-in-c/ https://www.emblogic.com/blog/09/completed-mdc-multiple-data-compression-in-c/#comments Tue, 02 Sep 2014 15:38:54 +0000 http://www.emblogic.com/blog/?p=11456 Continue reading →]]> RCS file: RCS/header.h,v
Working file: header.h
head: 1.3
branch:
locks: strict
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keyword substitution: kv
total revisions: 3;    selected revisions: 3
description:
All header file are included in this file
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revision 1.3
date: 2014/08/30 20:12:53;  author: root;  state: Exp;  lines: +5 -1
declare function
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revision 1.2
date: 2014/08/30 16:21:24;  author: root;  state: Exp;  lines: +2 -0
declare c_write function
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revision 1.1
date: 2014/08/28 18:01:10;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/main.c,v
Working file: main.c
head: 1.5
branch:
locks: strict
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keyword substitution: kv
total revisions: 5;    selected revisions: 5
description:
main file
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revision 1.5
date: 2014/08/30 20:11:15;  author: root;  state: Exp;  lines: +6 -4
call decompress function and recover original string with the help of master array
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revision 1.4
date: 2014/08/30 14:27:27;  author: root;  state: Exp;  lines: +1 -1
get position in master array
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revision 1.3
date: 2014/08/30 12:48:25;  author: root;  state: Exp;  lines: +1 -0
create compress function
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revision 1.2
date: 2014/08/28 18:17:20;  author: root;  state: Exp;  lines: +2 -1
Got Code length sucessfully
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revision 1.1
date: 2014/08/28 17:59:22;  author: root;  state: Exp;
Initial revision
=============================================================================

RCS file: RCS/function.c,v
Working file: function.c
head: 1.7
branch:
locks: strict
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keyword substitution: kv
total revisions: 7;    selected revisions: 7
description:
Function file where all functions are defined
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revision 1.7
date: 2014/08/31 15:01:44;  author: root;  state: Exp;  lines: +3 -2
chnage the appearance of output
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revision 1.6
date: 2014/08/30 20:12:23;  author: root;  state: Exp;  lines: +47 -17
define function to decompress and recover the data
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revision 1.5
date: 2014/08/30 16:20:29;  author: root;  state: Exp;  lines: +35 -35
write compressed data into new file
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revision 1.4
date: 2014/08/30 14:27:53;  author: root;  state: Exp;  lines: +45 -9
get position in master array
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revision 1.3
date: 2014/08/30 12:48:58;  author: root;  state: Exp;  lines: +29 -16
rectify the master function as it was reallocating more memory priviously
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revision 1.2
date: 2014/08/28 18:18:51;  author: root;  state: Exp;  lines: +4 -1
Define Code length function
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revision 1.1
date: 2014/08/28 18:00:07;  author: root;  state: Exp;
Initial revision
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