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// IO_SAP.cpp
// $Id$
#define ACE_BUILD_DLL
#include "ace/IO_SAP.h"
ACE_ALLOC_HOOK_DEFINE(ACE_IO_SAP)
// This is the do-nothing constructor. It does not perform a
// ACE_OS::open system call.
ACE_IO_SAP::ACE_IO_SAP (void)
: handle_ (ACE_INVALID_HANDLE)
{
ACE_TRACE ("ACE_IO_SAP::ACE_IO_SAP");
}
void
ACE_IO_SAP::dump (void) const
{
ACE_TRACE ("ACE_IO_SAP::dump");
ACE_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this));
ACE_DEBUG ((LM_DEBUG, "handle_ = %d", this->handle_));
ACE_DEBUG ((LM_DEBUG, "\npid_ = %d", this->pid_));
ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP));
}
// Cache for the process ID.
pid_t ACE_IO_SAP::pid_ = 0;
// Make the HANDLE_ available for asynchronous I/O (SIGIO), urgent
// data (SIGURG), or non-blocking I/O (ACE_NONBLOCK).
int
ACE_IO_SAP::enable (int signum) const
{
ACE_TRACE ("ACE_IO_SAP::enable");
/* First-time in initialization. */
if (ACE_IO_SAP::pid_ == 0)
ACE_IO_SAP::pid_ = ACE_OS::getpid ();
#if !defined(ACE_WIN32)
switch (signum)
{
#if defined (SIGURG)
case SIGURG:
#if defined (F_SETOWN)
if (ACE_OS::fcntl (this->handle_, F_SETOWN, ACE_IO_SAP::pid_) < 0)
return ACE_IO_SAP::INVALID_HANDLE;
break;
#else
return ACE_IO_SAP::INVALID_HANDLE;
#endif /* F_SETOWN */
#endif /* SIGURG */
case SIGIO:
#if defined (F_SETOWN) && defined (FASYNC)
if (ACE_OS::fcntl (this->handle_, F_SETOWN, ACE_IO_SAP::pid_) == ACE_IO_SAP::INVALID_HANDLE)
return ACE_IO_SAP::INVALID_HANDLE;
if (ACE::set_flags (this->handle_, FASYNC) == ACE_IO_SAP::INVALID_HANDLE)
return ACE_IO_SAP::INVALID_HANDLE;
break;
#else
return ACE_IO_SAP::INVALID_HANDLE;
#endif /* F_SETOWN && FASYNC */
case ACE_NONBLOCK:
if (ACE::set_flags (this->handle_, ACE_NONBLOCK) == ACE_IO_SAP::INVALID_HANDLE)
return ACE_IO_SAP::INVALID_HANDLE;
break;
default:
return ACE_IO_SAP::INVALID_HANDLE;
}
#else
ACE_UNUSED_ARG(signum);
#endif /* !ACE_WIN32 */
return 0;
}
// Restore the IO_SAP by turning off synchronous I/O or urgent delivery.
int
ACE_IO_SAP::disable (int signum) const
{
ACE_TRACE ("ACE_IO_SAP::disable");
#if !defined(ACE_WIN32)
switch (signum)
{
#if defined (SIGURG)
case SIGURG:
#if defined (F_SETOWN)
if (ACE_OS::fcntl (this->handle_, F_SETOWN, 0) == ACE_IO_SAP::INVALID_HANDLE)
return ACE_IO_SAP::INVALID_HANDLE;
#else
return ACE_IO_SAP::INVALID_HANDLE;
#endif /* F_SETOWN */
break;
#endif /* SIGURG */
case SIGIO:
#if defined (F_SETOWN) && defined (FASYNC)
if (ACE_OS::fcntl (this->handle_, F_SETOWN, 0) == ACE_IO_SAP::INVALID_HANDLE)
return ACE_IO_SAP::INVALID_HANDLE;
if (ACE::clr_flags (this->handle_, FASYNC) == ACE_IO_SAP::INVALID_HANDLE)
return ACE_IO_SAP::INVALID_HANDLE;
#else
return ACE_IO_SAP::INVALID_HANDLE;
#endif /* F_SETOWN && FASYNC */
break;
case ACE_NONBLOCK:
if (ACE::clr_flags (this->handle_, ACE_NONBLOCK) == ACE_IO_SAP::INVALID_HANDLE)
return ACE_IO_SAP::INVALID_HANDLE;
break;
default:
return ACE_IO_SAP::INVALID_HANDLE;
}
#else
ACE_UNUSED_ARG(signum);
#endif /* !ACE_WIN32 */
return 0;
}
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