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by James Page
Import upstream version 5.6.15 |
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/* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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/*
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File to include when we want to use alarm or a loop_counter to display
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some information when a program is running
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*/
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#ifndef _my_alarm_h
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#define _my_alarm_h
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#ifdef __cplusplus
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extern "C" { |
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#endif
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extern int volatile my_have_got_alarm; |
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extern ulong my_time_to_wait_for_lock; |
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#if defined(HAVE_ALARM) && !defined(NO_ALARM_LOOP)
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#include <signal.h> |
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#define ALARM_VARIABLES uint alarm_old=0; \
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sig_return alarm_signal=0
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#define ALARM_INIT my_have_got_alarm=0 ; \
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alarm_old=(uint) alarm(MY_HOW_OFTEN_TO_ALARM); \
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alarm_signal=signal(SIGALRM,my_set_alarm_variable);
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#define ALARM_END (void) signal(SIGALRM,alarm_signal); \
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(void) alarm(alarm_old);
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#define ALARM_TEST my_have_got_alarm
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#ifdef SIGNAL_HANDLER_RESET_ON_DELIVERY
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#define ALARM_REINIT (void) alarm(MY_HOW_OFTEN_TO_ALARM); \
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(void) signal(SIGALRM,my_set_alarm_variable);\
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my_have_got_alarm=0;
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#else
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#define ALARM_REINIT (void) alarm((uint) MY_HOW_OFTEN_TO_ALARM); \
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my_have_got_alarm=0;
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#endif /* SIGNAL_HANDLER_RESET_ON_DELIVERY */ |
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#else
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#define ALARM_VARIABLES long alarm_pos=0,alarm_end_pos=MY_HOW_OFTEN_TO_WRITE-1
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#define ALARM_INIT
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#define ALARM_END
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#define ALARM_TEST (alarm_pos++ >= alarm_end_pos)
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#define ALARM_REINIT alarm_end_pos+=MY_HOW_OFTEN_TO_WRITE
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#endif /* HAVE_ALARM */ |
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#ifdef __cplusplus
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}
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#endif
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#endif
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