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// IPC_SAP.cpp
// $Id$
#define ACE_BUILD_DLL
#include "ace/IPC_SAP.h"
ACE_ALLOC_HOOK_DEFINE(ACE_IPC_SAP)
void
ACE_IPC_SAP::dump (void) const
{
ACE_TRACE ("ACE_IPC_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_IPC_SAP::pid_ = 0;
// This is the do-nothing constructor. It does not perform a
// ACE_OS::socket system call.
ACE_IPC_SAP::ACE_IPC_SAP (void)
: handle_ (ACE_INVALID_HANDLE)
{
// ACE_TRACE ("ACE_IPC_SAP::ACE_IPC_SAP");
}
// Make the HANDLE_ available for asynchronous I/O (SIGIO), urgent
// data (SIGURG), or non-blocking I/O (ACE_NONBLOCK).
int
ACE_IPC_SAP::enable (int signum) const
{
ACE_TRACE ("ACE_IPC_SAP::enable");
// First-time in initialization.
if (ACE_IPC_SAP::pid_ == 0)
ACE_IPC_SAP::pid_ = ACE_OS::getpid ();
#if defined (ACE_WIN32) || defined (VXWORKS)
switch (signum)
{
case ACE_NONBLOCK:
// nonblocking argument (1)
// blocking: (0)
{
u_long nonblock = 1;
return ACE_OS::ioctl (this->handle_, FIONBIO, &nonblock);
}
default:
ACE_NOTSUP_RETURN (-1);
}
#else
switch (signum)
{
#if defined (SIGURG)
case SIGURG:
#if defined (F_SETOWN)
if (ACE_OS::fcntl (this->handle_, F_SETOWN, ACE_IPC_SAP::pid_) < 0)
return -1;
#else
return -1;
#endif /* F_SETOWN */
break;
#endif /* SIGURG */
#if defined (SIGIO) // <==
case SIGIO:
#if defined (F_SETOWN) && defined (FASYNC)
if (ACE_OS::fcntl (this->handle_, F_SETOWN, ACE_IPC_SAP::pid_) == -1)
return -1;
if (ACE::set_flags (this->handle_, FASYNC) == -1)
return -1;
#else
return -1;
#endif /* F_SETOWN && FASYNC */
#else // <==
return -1; // <==
#endif /* SIGIO <== */
break;
case ACE_NONBLOCK:
if (ACE::set_flags (this->handle_, ACE_NONBLOCK) == ACE_INVALID_HANDLE)
return -1;
break;
default:
return -1;
}
#endif /* !ACE_WIN32 */
return 0;
}
// Restore the IPC_SAPet by turning off synchronous I/O or urgent
// delivery.
int
ACE_IPC_SAP::disable (int signum) const
{
ACE_TRACE ("ACE_IPC_SAP::disable");
#if defined (ACE_WIN32) || defined (VXWORKS)
switch (signum)
{
case ACE_NONBLOCK:
// nonblocking argument (1)
// blocking: (0)
{
u_long nonblock = 0;
return ACE_OS::ioctl (this->handle_, FIONBIO, &nonblock);
}
default:
ACE_NOTSUP_RETURN (-1);
}
#else
switch (signum)
{
#if defined (SIGURG)
case SIGURG:
#if defined (F_SETOWN)
if (ACE_OS::fcntl (this->handle_, F_SETOWN, 0) == -1)
return -1;
break;
#else
return -1;
#endif /* F_SETOWN */
#endif /* SIGURG */
#if defined (SIGIO) // <==
case SIGIO:
#if defined (F_SETOWN) && defined (FASYNC)
if (ACE_OS::fcntl (this->handle_, F_SETOWN, 0) == -1)
return -1;
if (ACE::clr_flags (this->handle_, FASYNC) == -1)
return -1;
break;
#else
return -1;
#endif /* F_SETOWN && FASYNC */
#else // <==
return -1; // <==
#endif /* SIGIO <== */
case ACE_NONBLOCK:
if (ACE::clr_flags (this->handle_, ACE_NONBLOCK) == -1)
return -1;
break;
default:
return -1;
}
#endif /* !ACE_WIN32 */
return 0;
}
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