SMP_MCS_lock_Context Struct Reference

SMP Mellor-Crummey and Scott (MCS) lock context. More...

#include <smplockmcs.h>

Public Attributes
union {
Atomic_Uintptr   atomic
	The next context as an atomic unsigned integer pointer value.
struct SMP_MCS_lock_Context *   normal
	The next context as a normal pointer. More...
}	next
	The next context on the queue if it exists.
Atomic_Uint	locked
	Indicates if the lock is owned or free in case a previous context exits on the queue. More...

Detailed Description

SMP Mellor-Crummey and Scott (MCS) lock context.

Definition at line 40 of file smplockmcs.h.

Member Data Documentation

locked

Atomic_Uint SMP_MCS_lock_Context::locked

Indicates if the lock is owned or free in case a previous context exits on the queue.

This field is initialized to a non-zero value. The previous lock owner (which is the owner of the previous context) will set it to zero during its lock release.

Definition at line 66 of file smplockmcs.h.

normal

struct SMP_MCS_lock_Context* SMP_MCS_lock_Context::normal

The next context as a normal pointer.

Only provided for debugging purposes.

Definition at line 55 of file smplockmcs.h.

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The documentation for this struct was generated from the following file:

• cpukit/include/rtems/score/smplockmcs.h