1volmgt_running(3VOLMGT)Volume Management Library Functionvsolmgt_running(3VOLMGT)
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6 volmgt_running - return whether or not volume management is running
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9 cc [ flag... ] file... -lvolmgt [ library... ]
10 #include <volmgt.h>
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12 int volmgt_running(void);
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16 This function is obsolete. The management of removable media by the
17 Volume Management feature, including vold, has been replaced by soft‐
18 ware that supports the Hardware Abstraction Layer (HAL). Programmatic
19 support for HAL is through the HAL APIs, which are documented on the
20 HAL web site. See hal(5).
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23 volmgt_running() tells whether or not Volume Management is running.
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26 volmgt_running() always returns 0 indicating Volume Management (as
27 implemented by vold) is not running.
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30 volmgt_running() will fail, returning 0, if a stat(2) or open(2) of
31 /dev/volctl fails, or if any of the following is true:
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33 ENXIO Volume Management is not running.
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36 EINTR An interrupt signal was detected while checking to see if Vol‐
37 ume Management was running.
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41 Example 1 Using volmgt_running()
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44 To see if Volume Management is running:
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47 if (volmgt_running() != 0) {
48 (void) printf("Volume Management is running\n");
49 } else {
50 (void) printf("Volume Management is NOT running\n");
51 }
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55 See attributes(5) for descriptions of the following attributes:
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60 ┌─────────────────────────────┬─────────────────────────────┐
61 │ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
62 ├─────────────────────────────┼─────────────────────────────┤
63 │MT-Level │MT-Safe │
64 ├─────────────────────────────┼─────────────────────────────┤
65 │Interface Stability │Obsolete │
66 └─────────────────────────────┴─────────────────────────────┘
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69 open(2), stat(2), volmgt_check(3VOLMGT), volmgt_inuse(3VOLMGT),
70 attributes(5), hal(5)
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73 Volume Management must be running for many of the Volume Management
74 library routines to work.
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78SunOS 5.11 8 Mar 2007 volmgt_running(3VOLMGT)