monitor

An os_monitor is a template class that is derived from os_read_write_semaphore . When an os_monitor is constructed, it is associated with the object to be locked. Threads that wish to lock and access this object must adopt a cooperative scheme in which read_lock() is used to request a read lock, write_lock() is used to request a write lock, and operator* and operator-> are used to access the monitor's associated object. The functions read_unlock() and write_unlock() should be used to unlock the monitor when access to its associated object is no longer required.

Library

Thread<ToolKit>

Declaration


  #include <ospace/thread/monitor.h>

template< class T >
class os_monitor : public os_read_write_semaphore

Interface

Constructor

os_monitor( T& object )

Constructs a monitor to guard access to object .

Throws: os_thread_toolkit_error

const T& operator*() const

Returns a reference to the object being monitored.

T& operator*()

Returns a reference to the object being monitored.

const T* operator->() const

Returns a pointer to the object being monitored.

T* operator->()

Returns a pointer to the object being monitored.