通过Mutex封装实现的读写锁类。写锁优先于读锁。如果有写锁在等待，则读锁一直等待，直到写锁获取锁，并释放后才能获取。读锁是共享锁，写锁是独占锁。提供Mutex与临界区两种方式可宏切换实现，Mutex为系统内核对象，速度比较慢，但比较好控制。临界区速度快，但无进入临界区无超时时间，对时间控制不精确。

BOOL ReadLock(int timeout=INFINITE)

BOOL TryReadLock(int timeout=INFINITE,BOOL bLock=TRUE)

BOOL ReadUnLock(int timeout=INFINITE)

BOOL WriteLock(int timeout=INFINITE)

BOOL TryWriteLock(int timeout=INFINITE,BOOL bLock=TRUE)

BOOL WriteUnLock(int timeout=INFINITE)

BOOL WriteToRead(int timeout=INFINITE)

BOOL ReadToWrite(int timeout=INFINITE) -Achieved through the Mutex package to read and write locks. Priority read lock to write lock. If write lock is waiting, the time lock has to wait until the write lock for the lock, and release to get. Read lock is a shared lock, write lock is an exclusive lock. Mutex and critical section provides two ways to achieve macro switch, Mutex object for the system kernel, the speed is slower, but better control. Speed ​ ​ critical areas, without access to critical areas without timeout, time-control inaccurate. BOOL ReadLock (int timeout = INFINITE)　BOOL TryReadLock (int timeout = INFINITE, BOOL bLock = TRUE)　BOOL ReadUnLock (int timeout = INFINITE)　BOOL WriteLock (int timeout = INFINITE)　BOOL TryWriteLock (int timeout = INFINITE, BOOL bLock = TRUE)　BOOL WriteUnLock (int timeout = INFINITE)　BOOL WriteToRead (int timeout = INFINITE)　BOOL ReadToWrite (int timeout = INFINITE)