52 lines
1.7 KiB
C
52 lines
1.7 KiB
C
/****************************************************************
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* *
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* Copyright 2001, 2012 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 <errno.h>
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#include <signal.h>
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#include "gtm_limits.h"
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#include "io.h"
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#include "gtmsecshr.h"
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#include "secshr_client.h"
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#include "crit_wake.h"
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#include "send_msg.h"
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#include "have_crit.h"
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error_def(ERR_NOSUCHPROC);
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int crit_wake (sm_uint_ptr_t pid)
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{
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if (0 == kill(*pid, SIGALRM))
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return 0;
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else if (ESRCH == errno)
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{
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send_msg(VARLSTCNT(5) ERR_NOSUCHPROC, 3, *pid, RTS_ERROR_LITERAL("wake"));
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return(ESRCH);
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} else
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assert(EINVAL != errno);
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# ifdef NOT_CURRENTLY_USED
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/* The code segment below basically disabled M LOCK wakeup via gtmsecshr (via send_mesg2gtmsecshr() call below). The
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* requisite gtmsecshr support is temporarily also being #ifdef'd out until the M LOCK wakeup mechanism used to wakeup
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* processes with different userids can be run outside of crit. At that point, this code will be re-enabled without
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* the crit-check below once again allowing improved wakeup times for differing userids without waiting for a 100ms
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* poll timer to expire.
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*/
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/* if you are in crit don't send, the other process's timer will wake it up any way */
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if (0 != have_crit(CRIT_HAVE_ANY_REG))
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return 0;
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return send_mesg2gtmsecshr(WAKE_MESSAGE, *pid, (char *)NULL, 0);
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# else
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return 0;
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# endif
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}
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