64 lines
1.4 KiB
C
64 lines
1.4 KiB
C
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/****************************************************************
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* *
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* Copyright 2001, 2009 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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#ifdef __MVS__
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#include <sys/resource.h>
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#endif
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#include "is_proc_alive.h"
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/*
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* ----------------------------------------------
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* Check if process is still alive
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*
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* Arguments:
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* pid - process ID
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* imagecnt- used by VMS, dummy only in UNIX
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*
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* Return:
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* TRUE - Process still alive
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* FALSE - Process is gone
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* ----------------------------------------------
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*/
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bool is_proc_alive(int4 pid, int4 imagecnt)
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{
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int status;
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bool ret;
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if (0 == pid)
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{
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assert(FALSE);
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return FALSE;
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}
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# ifdef __MVS__
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errno = 0; /* it is possible getpriority returns -1 even in case of success */
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status = getpriority(PRIO_PROCESS, (id_t)pid);
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if ((-1 == status) && (0 == errno))
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status = 0;
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# else
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status = kill(pid, 0); /* just checking */
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# endif
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if (status)
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{
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assert(status == -1 && (errno == EPERM || errno == ESRCH));
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if (errno == ESRCH)
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ret = FALSE;
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else
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ret = TRUE;
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} else
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ret = TRUE;
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return ret;
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}
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