`core.sync.rwmutex.read_write_mutex.reader` - multiple declarations

Function ReadWriteMutex.reader

Gets an object representing the reader lock for the associated mutex.

ReadWriteMutex.Reader reader() @property;

A reader sub-mutex.

This class can be considered a mutex in its own right, and is used to negotiate a read lock for the enclosing mutex.

Name	Description
`this`	Initializes a read/write mutex `reader` proxy `object`.

Name	Description
`lock`	Acquires a read `lock` on the enclosing mutex.
`tryLock`	Attempts to acquire a read `lock` on the enclosing mutex. If one can be obtained without blocking, the `lock` is acquired and true is returned. If not, the `lock` is not acquired and false is returned.
`unlock`	Releases a read `lock` on the enclosing mutex.