opensolaris man page for volmgt_release

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

NAME
       volmgt_release - release removable media device reservation

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

       int volmgt_release(char *dev);

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       This  function  is obsolete. The management of removable media by the Volume Management feature, including vold, has been replaced by soft-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.

       The   volmgt_release() routine releases the removable media device reservation specified as dev. See volmgt_acquire(3VOLMGT) for a descrip-
       tion of dev.

       If  dev is reserved by the caller,  volmgt_release() updates the internal device reservation database to indicate  that the  device  is	no
       longer reserved. If the requested device is reserved by another process, the release attempt fails and errno is set to  0.

RETURN VALUES
       The return from this function is undefined.

ERRORS
       On failure, volmgt_release() returns  0, and sets  errno for one of the following conditions:

       EINVAL	 dev was invalid or missing.

       EBUSY	 dev was not reserved by the caller.

EXAMPLES
       Example 1 Using volmgt_release()

       In the following example, volume management is running, and the first floppy drive is reserved, accessed and released.

	 #include <volmgt.h>
	 char *errp;
	 if (!volmgt_acquire("floppy0", "FileMgr", 0, &errp,
	     NULL)) {
	      /* handle error case */
	      ...
	 }
	 /* floppy acquired - now access it */
	 if (!volmgt_release("floppy0")) {
	      /* handle error case */
	      ...
	 }

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

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

SEE ALSO
       volmgt_acquire(3VOLMGT), attributes(5), hal(5)

SunOS 5.11							    8 Mar 2007						   volmgt_release(3VOLMGT)