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Volume Management Library Functionsvolmgt_check(3VOLMGT)


NAME

 volmgt_check - have Volume Management check for media

SYNOPSIS

 
cc [ flag ... ] file ... -lvolmgt [ library ... ]
#include <volmgt.h>
int volmgt_check(char *pathname);

DESCRIPTION

 

This routine asks Volume Management to check the specified pathname and determine if new media has been inserted in that drive.

If a null pointer is passed in, then Volume Management will check each device it is managing that can be checked.

If new media is found, volmgt_check() tells Volume Management to initiate any "actions" specified in /etc/vold.conf (see vold.conf(4)).

RETURN VALUES

 

This routine returns 0 if no media was found, and a non-zero value if any media was found.

ERRORS

 

This routine can fail, returning 0, if a stat(2) or open(2) of the supplied pathname fails, or if any of the following is true:

ENXIO
Volume Management is not running.
EINTR
An interrupt signal was detected while checking for media.

EXAMPLES

 Example 1. Checking If Any New Media Is Inserted
 

To check if any drive managed by Volume Management has any new media inserted in it:

 
if (volmgt_check(NULL)) {
        (void) printf("Volume Management found media\n");
}

This would also request Volume Management to take whatever action was specified in /etc/vold.conf for any media found.

ATTRIBUTES

 

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

ATTRIBUTE TYPEATTRIBUTE VALUE
MT-LevelMT-Safe

SEE ALSO

 

cc(1B), volcheck(1), vold(1M), open(2), stat(2), volmgt_inuse(3VOLMGT), volmgt_running(3VOLMGT), vold.conf(4), attributes(5), volfs(7FS)

NOTES

 

Volume Management must be running for this routine to work.

Since volmgt_check() returns 0 for two different cases (both when no media is found, and when an error occurs), it is up to the user to to check errno to differentiate the two, and to ensure that Volume Management is running.


SunOS 5.9Go To TopLast Changed 31 Dec 1996

 
      
      
Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.