40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
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/****************************************************************
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* *
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* Copyright 2001, 2011 Fidelity Information Services, Inc *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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#include "mdef.h"
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#include <signal.h>
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#include "mlkdef.h"
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#include "error.h"
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#include "cmidef.h"
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#include "lke.h"
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#include "have_crit.h"
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GBLREF VSIG_ATOMIC_T util_interrupt;
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GBLREF volatile int4 fast_lock_count;
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/* Only allow the process to be interrupted if we are not in crit and not in the process
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of obtaining it. Otherwise, we cannot service this interruption at this time and must
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return (but will set the interruption flag. */
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CONDITION_HANDLER(lke_ctrlc_handler)
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{
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int dummy1, dummy2;
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START_CH; /* Drive top level condition handler if we can */
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util_interrupt = 1;
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if (0 == fast_lock_count && 0 == have_crit(CRIT_HAVE_ANY_REG))
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{
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UNWIND(dummy1, dummy2); /* This will do a longjmp and not 'return' here */
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}
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CONTINUE; /* Unconditional return */
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}
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