Name | Synopsis | Description | Return Values | Errors | Examples | Attributes | See Also | Notes
cc [ flag ... ] file ... -lvolmgt [ library ... ] #include <volmgt.h> int volmgt_running(void);
volmgt_running() tells whether or not Volume Management is running.
A non-zero value is returned if Volume Management is running, else 0 is returned.
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:
Volume Management is not running.
An interrupt signal was detected while checking to see if Volume Management was running.
if (volmgt_running() != 0) { (void) printf("Volume Management is running\n"); } else { (void) printf("Volume Management is NOT running\n"); }
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE |
ATTRIBUTE VALUE |
---|---|
MT-Level |
MT-Safe |
cc(1B), vold(1M), open(2), stat(2), volmgt_check(3VOLMGT), volmgt_inuse(3VOLMGT), attributes(5), volfs(7FS)
Volume Management must be running for many of the Volume Management library routines to work.
Name | Synopsis | Description | Return Values | Errors | Examples | Attributes | See Also | Notes