Integrate MySQL module.

module/Vendor/MDBC/include/my_alarm.h

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+/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+   
+   This library 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
+   Library General Public License for more details.
+   
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not, write to the Free
+   Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+   MA 02111-1301, 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>
+#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 DONT_REMEMBER_SIGNAL
+#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 /* DONT_REMEMBER_SIGNAL */
+#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