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77 lines
2 KiB
C
77 lines
2 KiB
C
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library 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 GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA */
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/* Dont let the user break when you are doing something important */
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/* Remembers if it got 'SIGINT' and executes it on allow_break */
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/* A static buffer is used; don't call dont_break() twice in a row */
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#include "mysys_priv.h"
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#include "my_static.h"
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/* Set variable that we can't break */
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void dont_break(void)
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{
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#if !defined(THREAD)
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my_dont_interrupt=1;
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#endif
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return;
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} /* dont_break */
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void allow_break(void)
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{
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#if !defined(THREAD)
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{
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reg1 int index;
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my_dont_interrupt=0;
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if (_my_signals)
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{
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if (_my_signals > MAX_SIGNALS)
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_my_signals=MAX_SIGNALS;
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for (index=0 ; index < _my_signals ; index++)
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{
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if (_my_sig_remember[index].func) /* Safequard */
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{
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(*_my_sig_remember[index].func)(_my_sig_remember[index].number);
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_my_sig_remember[index].func=0;
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}
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}
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_my_signals=0;
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}
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}
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#endif
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} /* dont_break */
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/* Set old status */
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#if !defined(THREAD)
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void my_remember_signal(int signal_number, sig_handler (*func) (int))
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{
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#ifndef __WIN__
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reg1 int index;
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index=_my_signals++; /* Nobody can break a ++ ? */
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if (index < MAX_SIGNALS)
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{
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_my_sig_remember[index].number=signal_number;
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_my_sig_remember[index].func=func;
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}
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#endif /* __WIN__ */
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} /* my_remember_signal */
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#endif /* THREAD */
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