#include <threads.h>

Data Fields
uint32_t	signature
	Signature for entry validation.
uint32_t	state
	State of the lock (Locked/Unlocked).
uint32_t	count
	Count of lock recursions.
THREAD_HANDLE	owner
	Currently owning thread (or INVALID_HANDLE_VALUE if not locked).
uint32_t	spincount
	Number of times to spin wait for lock before Wait is called (Always 0 if SCHEDULER_CPU_COUNT = 1).
SPIN_HANDLE	lock
	Critical Section Lock.
LIST_HANDLE	list
	List of threads waiting on this CriticalSection (or INVALID_HANDLE_VALUE if never used).
thread_wait_proc	wait
	Wait function to call to wait on the CriticalSection if it is already locked.
thread_wait_ex_proc	waitex
	Wait function to call to wait with timeout on the CriticalSection if it is already locked.
thread_release_proc	release
	Release function to call if any threads are waiting when CriticalSection is unlocked.
thread_abandon_proc	abandon
	Abandon function to call if any threads are waiting when CriticalSection is destroyed.
CRITICAL_SECTION_ENTRY *	prev
	Previous entry in CriticalSection table.
CRITICAL_SECTION_ENTRY *	next
	Next entry in CriticalSection table.