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Full Discussion: How to check if another instance of the process is running
Top Forums Shell Programming and Scripting How to check if another instance of the process is running Post 76456 by sim on Tuesday 28th of June 2005 11:23:35 AM
Old 06-28-2005
your assumptions are correct. But i doubt if this will solve my problem because i had problems only when 2 instances of script1 were starting at the same instance (timestamp is same). according to what i understood, in this case also, both the instances can do the ps check and lock file creation at the same time (if file is created using touch command, it will not give any error even if the file exist). and two instances of the script 2 will be started and then the C++ program. Please correct me if i am wrong.
 

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LEARN ABOUT OPENSOLARIS

net_instance_register

net_instance_register(9F)				   Kernel Functions for Drivers 				 net_instance_register(9F)

NAME

       net_instance_register - register a set of instances to occur with IP instance events

SYNOPSIS

       #include <sys/neti.h>

       int net_instance_register(net_instance_t *instances);

INTERFACE LEVEL

       Solaris DDI specific (Solaris DDI).

PARAMETERS

       instances    must be a pointer returned by net_instance_alloc(9F).

DESCRIPTION

       The  net_instance_register()  function  attempts  to  record  the  set of functions passed by instances that are to be called when an event
       related to IP instance maintenance occurs.

RETURN VALUES

       If the net_instance_register() function succeeds, DDI_SUCCESS is returned. Otherwise, DDI_FAILURE is returned to indicate  failure  due	to
       the name in the instance already being present.

CONTEXT

       The net_instance_register() function may be called from user or kernel context.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Committed 		   |
       +-----------------------------+-----------------------------+

SEE ALSO

       net_instance_alloc(9F), net_instance_unregister(9F), attributes(5), net_instance_t(9S)

SunOS 5.11							    1 May 2008						 net_instance_register(9F)
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