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This function is obsolete.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Volume Management feature, including vold, has been replaced by software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(5).


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(5) 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(5), hal(5)

NOTES


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


March 8, 2007 VOLMGT_RUNNING(3VOLMGT)