mf_brkhant.c
上传用户:tsgydb
上传日期:2007-04-14
资源大小:10674k
文件大小:2k
- /* 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., 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA */
- /* Dont let the user break when you are doing something important */
- /* Remembers if it got 'SIGINT' and executes it on allow_break */
- /* A static buffer is used; don't call dont_break() twice in a row */
- #include "mysys_priv.h"
- #include "my_static.h"
- /* Set variable that we can't break */
- void dont_break(void)
- {
- #if !defined(THREAD)
- my_dont_interrupt=1;
- #endif
- return;
- } /* dont_break */
- void allow_break(void)
- {
- #if !defined(THREAD)
- {
- reg1 int index;
- my_dont_interrupt=0;
- if (_my_signals)
- {
- if (_my_signals > MAX_SIGNALS)
- _my_signals=MAX_SIGNALS;
- for (index=0 ; index < _my_signals ; index++)
- {
- if (_my_sig_remember[index].func) /* Safequard */
- {
- (*_my_sig_remember[index].func)(_my_sig_remember[index].number);
- _my_sig_remember[index].func=0;
- }
- }
- _my_signals=0;
- }
- }
- #endif
- } /* dont_break */
- /* Set old status */
- #if !defined(THREAD)
- void my_remember_signal(int signal_number, sig_handler (*func) (int))
- {
- #ifndef __WIN__
- reg1 int index;
- index=_my_signals++; /* Nobody can break a ++ ? */
- if (index < MAX_SIGNALS)
- {
- _my_sig_remember[index].number=signal_number;
- _my_sig_remember[index].func=func;
- }
- #endif /* __WIN__ */
- } /* my_remember_signal */
- #endif /* THREAD */