---
title: IORecursiveLockGetMachLock
framework: kernel
role: symbol
role_heading: Function
path: kernel/1552988-iorecursivelockgetmachlock
---

# IORecursiveLockGetMachLock

Accessor to a Mach mutex.

## Declaration

```occ
lck_mtx_t * IORecursiveLockGetMachLock(IORecursiveLock *lock);
```

## Parameters

- `lock`: Pointer to the allocated lock.

## Discussion

Discussion Accessor to the Mach mutex.

## See Also

### Recursive Locks

- [IORecursiveLockAlloc](kernel/1553013-iorecursivelockalloc.md)
- [IORecursiveLockFree](kernel/1553031-iorecursivelockfree.md)
- [IORecursiveLockHaveLock](kernel/1552995-iorecursivelockhavelock.md)
- [IORecursiveLockLock](kernel/1553020-iorecursivelocklock.md)
- [IORecursiveLockSleep](kernel/1553001-iorecursivelocksleep.md)
- [IORecursiveLockSleepDeadline](kernel/1552986-iorecursivelocksleepdeadline.md)
- [IORecursiveLockTryLock](kernel/1552993-iorecursivelocktrylock.md)
- [IORecursiveLockUnlock](kernel/1553032-iorecursivelockunlock.md)
- [IORecursiveLockWakeup](kernel/1553014-iorecursivelockwakeup.md)