fis-gtm/sr_port/jobinterrupt_event.c

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/****************************************************************
* *
* Copyright 2001, 2007 Fidelity Information Services, Inc *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
/* job interrupt event - an interrupt has been requested.
- Call xfer_set_handlers so next M instruction traps to interrupt routine
- Other required housecleaning for VMS.
*/
#include "mdef.h"
#ifdef UNIX
# include <signal.h>
#else
# include <ssdef.h>
# include "efn.h"
#endif
#include "gtm_stdio.h"
#include "io.h"
#include "op.h"
#include "xfer_enum.h"
#include "outofband.h"
#include "deferred_events.h"
#include "jobinterrupt_event.h"
#include "fix_xfer_entry.h"
GBLREF xfer_entry_t xfer_table[];
GBLREF volatile int4 outofband;
GBLREF volatile boolean_t dollar_zininterrupt;
/* Routine called when an interrupt event occurs (signaled by mupip intrpt or other future method
of signaling interrupts). This code is driven as a signal handler on Unix and from the START_CH
macro on VMS where it intercepts the posix signal.
*/
UNIX_ONLY(void jobinterrupt_event(int sig, siginfo_t *info, void *context))
VMS_ONLY(void jobinterrupt_event(void))
{ /* Note the (presently unused) args are to match signature for signal handlers in Unix */
if (!dollar_zininterrupt)
(void)xfer_set_handlers(outofband_event, &jobinterrupt_set, 0);
}
/* Call back routine from xfer_set_handlers to complete outofband setup */
void jobinterrupt_set(int4 dummy_val)
{
int4 status;
VMS_ONLY(
status = sys$setef(efn_outofband);
assert(SS$_WASCLR == status);
if (SS$_WASCLR != status && SS$_WASSET != status)
GTMASSERT;
)
if (jobinterrupt != outofband)
{ /* We need jobinterrupt out of band processing at our earliest convenience */
outofband = jobinterrupt;
FIX_XFER_ENTRY(xf_linefetch, op_fetchintrrpt);
FIX_XFER_ENTRY(xf_linestart, op_startintrrpt);
FIX_XFER_ENTRY(xf_zbfetch, op_fetchintrrpt);
FIX_XFER_ENTRY(xf_zbstart, op_startintrrpt);
FIX_XFER_ENTRY(xf_forchk1, op_startintrrpt);
FIX_XFER_ENTRY(xf_forloop, op_forintrrpt);
}
VMS_ONLY(sys$wake(0,0);)
}