NXRwLockDowngrade

Converts a previously acquired reader-writer lock from write mode to read mode.

Library:LibC

Classification:NKS

Service:Synchronization

Syntax

  #include <nks/synch.h>
   
  int NXRwLockDowngrade (
     NXRwLock_t  *lock));

If successful, returns 0; otherwise returns a nonzero error code:

Decimal	Hex	Constant	Description
9	0x09	NX_EINVAL	The mutex is not a valid mutex.
66	0x42	NX_ENOSYS	This operation is not supported on this platform.
69	0x45	NX_EPERM	The lock has not been previously acquired for writing.