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80 lines
1.9 KiB
C++
80 lines
1.9 KiB
C++
// -*- C++ -*-
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//=============================================================================
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/**
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* @file Sig_Adapter.h
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*
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* @author Douglas C. Schmidt <schmidt@cs.wustl.edu>
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*/
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//=============================================================================
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#ifndef ACE_SIG_ADAPTER_H
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#define ACE_SIG_ADAPTER_H
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#include /**/ "ace/pre.h"
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#include /**/ "ace/ACE_export.h"
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#if !defined (ACE_LACKS_PRAGMA_ONCE)
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# pragma once
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#endif /* ACE_LACKS_PRAGMA_ONCE */
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#include "ace/Event_Handler.h"
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#include "ace/Signal.h"
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ACE_BEGIN_VERSIONED_NAMESPACE_DECL
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/**
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* @class ACE_Sig_Adapter
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*
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* @brief Provide an adapter that transforms various types of signal
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* handlers into the scheme used by the ACE_Reactor.
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*/
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class ACE_Export ACE_Sig_Adapter : public ACE_Event_Handler
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{
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public:
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ACE_Sig_Adapter (ACE_Sig_Action &, int sigkey);
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ACE_Sig_Adapter (ACE_Event_Handler *, int sigkey);
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ACE_Sig_Adapter (ACE_Sig_Handler_Ex, int sigkey = 0);
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~ACE_Sig_Adapter (void);
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/// Returns this signal key that's used to remove this from the
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/// ACE_Reactor's internal table.
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int sigkey (void);
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/// Called by the <Reactor> to dispatch the signal handler.
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virtual int handle_signal (int, siginfo_t *, ucontext_t *);
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private:
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/// Key for this signal handler (used to remove it).
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int sigkey_;
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/// Is this an external handler or an ACE handler?
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enum
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{
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/// We're just wrapping an ACE_Event_Handler.
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ACE_HANDLER,
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/// An ACE_Sig_Action.
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SIG_ACTION,
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/// A normal C function.
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C_FUNCTION
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} type_;
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// = This should be a union, but C++ won't allow that because the
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// <ACE_Sig_Action> has a constructor.
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/// This is an external handler (ugh).
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ACE_Sig_Action sa_;
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/// This is an ACE hander.
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ACE_Event_Handler *eh_;
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/// This is a normal C function.
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ACE_Sig_Handler_Ex sig_func_;
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};
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ACE_END_VERSIONED_NAMESPACE_DECL
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#include /**/ "ace/post.h"
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#endif /* ACE_SIG_ADAPTER_H */
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