volmgt_inuse(3volmgt) [opensolaris man page]

volmgt_inuse(3VOLMGT)					Volume Management Library Functions				     volmgt_inuse(3VOLMGT)

NAME

       volmgt_inuse - check whether or not volume management is managing a pathname

SYNOPSIS

       cc [ flag ... ] file ... -lvolmgt [ library ... ]
       #include <volmgt.h>

       int volmgt_inuse(char *pathname);

DESCRIPTION

       This  function  is obsolete. The management of removable media by the Volume Management feature, including vold, has been replaced by soft-
       ware that supports the Hardware Abstraction Layer (HAL). Programmatic support for HAL is through the HAL APIs, which are documented on  the
       HAL web site. See hal(5). The return value of this function is undefined.

       volmgt_inuse() checks whether volume management is managing the specified pathname.

RETURN VALUES

       The return from this function is undefined.

ERRORS

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

       ENXIO	Volume management is not running.

       EINTR	An interrupt signal was detected while checking for the supplied pathname for use.

EXAMPLES

       Example 1 Using volmgt_inuse()

       To see if volume management is managing the first floppy disk:

	 if (volmgt_inuse("/dev/rdiskette0") != 0) {
		 (void) printf("volmgt is managing diskette 0
");
	 } else {
		 (void) printf("volmgt is NOT managing diskette 0
");
	 }

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Obsolete			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       cc(1B),	open(2),  stat(2),  errno(3C),	volmgt_check(3VOLMGT),	volmgt_running(3VOLMGT),  attributes(5),  hal(5)

NOTES

       This routine requires volume management to be running.

       Since volmgt_inuse() returns 0 for two different cases (both when a volume is not in use, 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 5.11							    8 Mar 2007						     volmgt_inuse(3VOLMGT)

Check Out this Related Man Page

media_getid(3VOLMGT)					Volume Management Library Functions				      media_getid(3VOLMGT)

NAME

       media_getid - return the id of a piece of media

SYNOPSIS

       cc [flag ...] file ...-lvolgmt [library ...]

       #include <volmgt.h>

       ulonglong_t media_getid(char *vol_path);

DESCRIPTION

       This  function  is obsolete. The management of removable media by the Volume Management feature, including vold, has been replaced by soft-
       ware that supports the Hardware Abstraction Layer (HAL). Programmatic support for HAL is through the HAL APIs, which are documented on  the
       HAL web site. See hal(5). The return value of this function is undefined.

       media_getid() returns the id of a piece of media. Volume management must be running. See volmgt_running(3VOLMGT).

PARAMETERS

       vol_path    Path to the block or character special device.

RETURN VALUES

       The return from this function is undefined.

EXAMPLES

       Example 1 Using media_getid()

       The following example first checks if volume management is running, then checks the volume management name space for path, and then returns
       the id for the piece of media.

	 char *path;

	      ...

	 if (volmgt_running()) {
	      if (volmgt_ownspath(path)) {
		   (void) printf("id of %s is %lld
",
			path, media_getid(path));
	      }
	      }

       If a program using media_getid() does not check whether or not volume management is running, then any NULL return value will be	ambiguous,
       as it could mean that either volume management does not have path in its name space, or volume management is not running.

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Safe			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Obsolete			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       volmgt_ownspath(3VOLMGT),volmgt_running(3VOLMGT),attributes(5), hal(5)

SunOS 5.11							    8 Mar 2007						      media_getid(3VOLMGT)

Linux and UNIX Man Pages

volmgt_inuse(3volmgt) [opensolaris man page]

Check Out this Related Man Page