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| Volume Management Library Functions | volmgt_running(3VOLMGT) |
| | volmgt_running - return whether or not Volume Management is running |
SYNOPSIS
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cc [ flag ... ] file ... -lvolmgt [ library ... ]
#include <volmgt.h>
int volmgt_running(void); |
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volmgt_running() tells whether or not Volume Management is running.
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A non-zero value is returned if Volume Management is running, else 0 is returned.
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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.
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| | Example 1. Using volmgt_running
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To see if Volume Management is running:
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if (volmgt_running() != 0) {
(void) printf("Volume Management is running\n");
} else {
(void) printf("Volume Management is NOT running\n");
}
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See attributes(5) for descriptions of the following
attributes:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| MT-Level | MT-Safe |
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Volume Management must be running for many of the Volume Management library routines to work.
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