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Diffstat (limited to 'ace/Event_Handler.h')
| -rw-r--r-- | ace/Event_Handler.h | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/ace/Event_Handler.h b/ace/Event_Handler.h deleted file mode 100644 index ece9adf8715..00000000000 --- a/ace/Event_Handler.h +++ /dev/null @@ -1,189 +0,0 @@ -/* -*- C++ -*- */ -// $Id$ - -// ============================================================================ -// -// = LIBRARY -// ace -// -// = FILENAME -// Event_Handler.h -// -// = AUTHOR -// Doug Schmidt -// -// ============================================================================ - -#ifndef ACE_EVENT_HANDLER_H -#define ACE_EVENT_HANDLER_H - -#include "ace/ACE.h" - -#if !defined (ACE_LACKS_PRAGMA_ONCE) -# pragma once -#endif /* ACE_LACKS_PRAGMA_ONCE */ - -// Forward declaration. -class ACE_Message_Block; -class ACE_Reactor; -class ACE_Thread_Manager; - -typedef u_long ACE_Reactor_Mask; - -class ACE_Export ACE_Event_Handler -{ - // = TITLE - // Provides an abstract interface for handling various types of - // I/O, timer, and signal events. - // - // = DESCRIPTION - // Subclasses read/write input/output on an I/O descriptor, - // handle an exception raised on an I/O descriptor, handle a - // timer's expiration, or handle a signal. -public: - enum - { - LO_PRIORITY = 0, - HI_PRIORITY = 10, - NULL_MASK = 0, -#if defined (ACE_USE_POLL) - READ_MASK = POLLIN, - WRITE_MASK = POLLOUT, - EXCEPT_MASK = POLLPRI, -#else /* USE SELECT */ - READ_MASK = (1 << 0), - WRITE_MASK = (1 << 1), - EXCEPT_MASK = (1 << 2), -#endif /* ACE_USE_POLL */ - ACCEPT_MASK = (1 << 3), - CONNECT_MASK = (1 << 4), - TIMER_MASK = (1 << 5), - QOS_MASK = (1 << 6), - GROUP_QOS_MASK = (1 << 7), - SIGNAL_MASK = (1 << 8), - ALL_EVENTS_MASK = READ_MASK | - WRITE_MASK | - EXCEPT_MASK | - ACCEPT_MASK | - CONNECT_MASK | - TIMER_MASK | - QOS_MASK | - GROUP_QOS_MASK | - SIGNAL_MASK, - RWE_MASK = READ_MASK | - WRITE_MASK | - EXCEPT_MASK, - DONT_CALL = (1 << 9) - }; - - virtual ~ACE_Event_Handler (void); - // Destructor is virtual to enable proper cleanup. - - virtual ACE_HANDLE get_handle (void) const; - // Get the I/O handle. - virtual void set_handle (ACE_HANDLE); - // Set the I/O handle. - - // = Get/set priority - - // Priorities run from MIN_PRIORITY (which is the "lowest priority") - // to MAX_PRIORITY (which is the "highest priority"). - virtual int priority (void) const; - // Get the priority of the Event_Handler. - virtual void priority (int priority); - // Set the priority of the Event_Handler. - - virtual int handle_input (ACE_HANDLE fd = ACE_INVALID_HANDLE); - // Called when input events occur (e.g., connection or data). - - virtual int handle_output (ACE_HANDLE fd = ACE_INVALID_HANDLE); - // Called when output events are possible (e.g., flow control - // abates). - - virtual int handle_exception (ACE_HANDLE fd = ACE_INVALID_HANDLE); - // Called when execption events occur (e.g., SIGURG). - - virtual int handle_timeout (const ACE_Time_Value &tv, - const void *arg = 0); - // Called when timer expires. - - virtual int handle_close (ACE_HANDLE handle, - ACE_Reactor_Mask close_mask); - // Called when object is removed from the ACE_Reactor - - virtual int handle_signal (int signum, siginfo_t * = 0, ucontext_t * = 0); - // Called when object is signaled by OS (either via UNIX signals or - // when a Win32 object becomes signaled). - - virtual int handle_qos (ACE_HANDLE = ACE_INVALID_HANDLE); - virtual int handle_group_qos (ACE_HANDLE = ACE_INVALID_HANDLE); - - // = Accessors to set/get the various event demultiplexors. - virtual void reactor (ACE_Reactor *reactor); - virtual ACE_Reactor *reactor (void) const; - -#if !defined (ACE_HAS_WINCE) - static void *read_adapter (void *event_handler); - // Used to read from non-socket ACE_HANDLEs in our own thread to - // work around Win32 limitations that don't allow us to select() on - // non-sockets (such as ACE_STDIN). This is commonly used in - // situations where the Reactor is used to demultiplex read events - // on ACE_STDIN on UNIX. Note that <event_handler> must be a - // subclass of <ACE_Event_Handler>. If the <get_handle> method of - // this event handler returns <ACE_INVALID_HANDLE> we default to - // reading from ACE_STDIN. - - static int register_stdin_handler (ACE_Event_Handler *eh, - ACE_Reactor *reactor, - ACE_Thread_Manager *thr_mgr, - int flags = THR_DETACHED); - // Abstracts away from the differences between Win32 and ACE with - // respect to reading from ACE_STDIN (which is non-select()'able on - // Win32. - - static int remove_stdin_handler (ACE_Reactor *reactor, - ACE_Thread_Manager *thr_mgr); - // Performs the inverse of the <register_stdin_handler> method. -#endif /* ACE_HAS_WINCE */ - -protected: - ACE_Event_Handler (ACE_Reactor * = 0, - int priority = ACE_Event_Handler::LO_PRIORITY); - // Force ACE_Event_Handler to be an abstract base class. - -private: - - int priority_; - // Priority of this Event_Handler. - - // = Pointers to the various event demultiplexors. - ACE_Reactor *reactor_; -}; - -class ACE_Export ACE_Notification_Buffer -{ - // = TITLE - // Simple wrapper for passing <ACE_Event_Handler *>s and - // <ACE_Reactor_Mask>s between threads. -public: - ACE_Notification_Buffer (void); - - ACE_Notification_Buffer (ACE_Event_Handler *eh, - ACE_Reactor_Mask mask); - - ~ACE_Notification_Buffer (void); - // Default dtor. - - ACE_Event_Handler *eh_; - // Pointer to the Event_Handler that will be dispatched - // by the main event loop. - - ACE_Reactor_Mask mask_; - // Mask that indicates which method to call. -}; - -#if defined (__ACE_INLINE__) -#include "ace/Event_Handler.i" -#endif /* __ACE_INLINE__ */ - -#endif /* ACE_EVENT_HANDLER_H */ |