volmgt_release(3volmgt) [opensolaris man page]

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       This  function  is obsolete. The management of removable media by the Volume Management feature, including vold, has been replaced by soft-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

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_release(3volmgt) [opensolaris man page]

Check Out this Related Man Page