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root
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proc
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thread-self
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root
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usr
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include
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mysql
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server
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private
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/* Copyright (c) 2000, 2010, Oracle and/or its affiliates. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */ /* File to include when we want to use alarm or a loop_counter to display some information when a program is running */ #ifndef _my_alarm_h #define _my_alarm_h #ifdef __cplusplus extern "C" { #endif extern int volatile my_have_got_alarm; extern ulong my_time_to_wait_for_lock; #if defined(HAVE_ALARM) && !defined(NO_ALARM_LOOP) #include <signal.h> #ifdef HAVE_SIGHANDLER_T #define sig_return sighandler_t #elif defined(SOLARIS) || defined(__sun) || defined(__APPLE__) || \ defined(_AIX) || \ defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || \ defined(__DragonFly__) typedef void (*sig_return)(int); /* Returns type from signal */ #else typedef void (*sig_return)(void); /* Returns type from signal */ #endif #define ALARM_VARIABLES uint alarm_old=0; \ sig_return alarm_signal=0 #define ALARM_INIT my_have_got_alarm=0 ; \ alarm_old=(uint) alarm(MY_HOW_OFTEN_TO_ALARM); \ alarm_signal=signal(SIGALRM,my_set_alarm_variable); #define ALARM_END (void) signal(SIGALRM,alarm_signal); \ (void) alarm(alarm_old); #define ALARM_TEST my_have_got_alarm #ifdef SIGNAL_HANDLER_RESET_ON_DELIVERY #define ALARM_REINIT (void) alarm(MY_HOW_OFTEN_TO_ALARM); \ (void) signal(SIGALRM,my_set_alarm_variable);\ my_have_got_alarm=0; #else #define ALARM_REINIT (void) alarm((uint) MY_HOW_OFTEN_TO_ALARM); \ my_have_got_alarm=0; #endif /* SIGNAL_HANDLER_RESET_ON_DELIVERY */ #else #define ALARM_VARIABLES long alarm_pos=0,alarm_end_pos=MY_HOW_OFTEN_TO_WRITE-1 #define ALARM_INIT #define ALARM_END #define ALARM_TEST (alarm_pos++ >= alarm_end_pos) #define ALARM_REINIT (alarm_end_pos+=MY_HOW_OFTEN_TO_WRITE) #endif /* HAVE_ALARM */ #ifdef __cplusplus } #endif #endif
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