EmbLogic » parent child 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 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:
locks: strict
access list:
symbolic names:
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
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RCS file: fork2.c,v
Working file: fork2.c
head: 1.3
branch:
locks: strict
access list:
symbolic names:
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
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RCS file: orphan.c,v
Working file: orphan.c
head: 1.4
branch:
locks: strict
access list:
symbolic names:
keyword substitution: kv
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
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