VOLMGT_RUNNING(3VOLMGT) Volume Management Library Functions

NAME

volmgt_running - return whether or not volume management is running

SYNOPSIS

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

int volmgt_running(void);

DESCRIPTION

This function is obsolete. The management of removable media by the
Volume Management feature, including vold, has been replaced by
software 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(7).


volmgt_running() tells whether or not Volume Management is running.

RETURN VALUES

volmgt_running() always returns 0 indicating Volume Management (as
implemented by vold) is not running.

ERRORS

volmgt_running() will fail, returning 0, if a stat(2) or 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 to see if
Volume Management was running.

EXAMPLES

Example 1: Using volmgt_running()

To see if Volume Management is running:


if (volmgt_running() != 0) {
(void) printf("Volume Management is running\n");
} else {
(void) printf("Volume Management is NOT running\n");
}

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


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

SEE ALSO

open(2), stat(2), volmgt_check(3VOLMGT), volmgt_inuse(3VOLMGT),
attributes(7), hal(7)

NOTES

Volume Management must be running for many of the Volume Management
library routines to work.

March 8, 2007 VOLMGT_RUNNING(3VOLMGT)