10-13-2012
Benefit of Kernel
So I was wondering what are the benefits of Unix kernel?
It does Process
Management, File Management, Main Memory Management and Disk Management!
Why couldn't operating system take care of these things? why did we need another intermediate
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LEARN ABOUT SUNOS
volmgt_root
volmgt_root(3VOLMGT) Volume Management Library Functions volmgt_root(3VOLMGT)
NAME
volmgt_root - return the Volume Management root directory
SYNOPSIS
cc [ flag ... ] file ... -lvolmgt [ library ... ]
#include <volmgt.h>
const char *volmgt_root(void);
DESCRIPTION
The volmgt_root() function returns the current Volume Management root directory, which by default is /vol but can be configured to be in a
different location.
RETURN VALUES
The volmgt_root() function returns pointer to a static string containing the root directory for Volume Management.
ERRORS
This function may fail if an open() of /dev/volctl fails. If this occurs a pointer to the default Volume Management root directory is
returned.
EXAMPLES
Example 1: Finding the Volume Management root directory.
To find out where the Volume Management root directory is:
if ((path = volmgt_root()) != NULL) {
(void) printf("Volume Management root dir=%s
", path);
} else {
(void) printf("can't find Volume Management root dir
");
}
FILES
/vol default location for the Volume Management root directory
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
cc(1B), vold(1M), open(2), volmgt_check(3VOLMGT), volmgt_inuse(3VOLMGT), volmgt_running(3VOLMGT), attributes(5), volfs(7FS)
NOTES
This function returns the default root directory location even when Volume Management is not running.
SunOS 5.10 1 Feb 2001 volmgt_root(3VOLMGT)