RCS file: intro_shared_memory_by_fork.c,v
Working file: intro_shared_memory_by_fork.c
head: 1.36
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emblogic: 1.36
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total revisions: 36; selected revisions: 36
description:
This is my frist program to know the use of shared memory.
We frist get shmid to the kernal.
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revision 1.36 locked by: emblogic;
date: 2015/10/25 08:29:39; author: emblogic; state: Exp; lines: +3 -4
Change some.
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revision 1.35
date: 2015/10/25 08:21:58; author: emblogic; state: Exp; lines: +2 -2
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date: 2015/10/25 08:21:02; author: emblogic; state: Exp; lines: +0 -1
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date: 2015/10/25 08:20:34; author: emblogic; state: Exp; lines: +0 -1
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revision 1.31
date: 2015/10/25 08:19:59; author: emblogic; state: Exp; lines: +1 -0
Print the value inside the parent which write in child.
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revision 1.30
date: 2015/10/25 08:19:25; author: emblogic; state: Exp; lines: +1 -0
Add the fork header file.
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date: 2015/10/25 08:14:55; author: emblogic; state: Exp; lines: +1 -1
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date: 2015/10/25 08:14:41; author: emblogic; state: Exp; lines: +1 -1
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date: 2015/10/25 08:13:39; author: emblogic; state: Exp; lines: +1 -1
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revision 1.19
date: 2015/10/25 08:13:13; author: emblogic; state: Exp; lines: +2 -2
Print the data.
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date: 2015/10/25 08:08:08; author: emblogic; state: Exp; lines: +2 -1
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date: 2015/10/25 08:07:34; author: emblogic; state: Exp; lines: +0 -1
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date: 2015/10/25 08:06:25; author: emblogic; state: Exp; lines: +2 -2
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date: 2015/10/25 08:04:23; author: emblogic; state: Exp; lines: +1 -1
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revision 1.6
date: 2015/10/25 08:02:52; author: emblogic; state: Exp; lines: +2 -1
Move index the shared memory because data do not overwrite on that data which write inicially.
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revision 1.5
date: 2015/10/25 08:02:15; author: emblogic; state: Exp; lines: +1 -1
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revision 1.4
date: 2015/10/25 08:00:38; author: emblogic; state: Exp; lines: +11 -0
Use the signal
By the help of signal we write data in shared memory in child.
Print the value of ptr inside the signal and also print the data.
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revision 1.3
date: 2015/10/25 07:57:04; author: emblogic; state: Exp; lines: +1 -1
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revision 1.2
date: 2015/10/25 07:55:59; author: emblogic; state: Exp; lines: +20 -1
here print the value of ptr.
Also supply some value at ptr and print the value of ptr in parent using fork call.
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revision 1.1
date: 2015/10/25 07:51:13; author: emblogic; state: Exp;
Initial revision
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