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by brian
clean slate |
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/* Copyright (C) 2000 MySQL AB
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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/* Prototypes when using thr_alarm library functions */
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#ifndef _thr_alarm_h
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#define _thr_alarm_h
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#ifdef __cplusplus
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extern "C" { |
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#endif
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#ifndef USE_ALARM_THREAD
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#define USE_ONE_SIGNAL_HAND /* One must call process_alarm */ |
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#endif
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#ifdef HAVE_rts_threads
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#undef USE_ONE_SIGNAL_HAND
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#define USE_ALARM_THREAD
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#define THR_SERVER_ALARM SIGUSR1
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#else
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#define THR_SERVER_ALARM SIGALRM
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#endif
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typedef struct st_alarm_info |
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{
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ulong next_alarm_time; |
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uint active_alarms; |
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uint max_used_alarms; |
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} ALARM_INFO; |
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void thr_alarm_info(ALARM_INFO *info); |
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#if defined(DONT_USE_THR_ALARM) || !defined(THREAD)
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#define USE_ALARM_THREAD
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#undef USE_ONE_SIGNAL_HAND
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typedef my_bool thr_alarm_t; |
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typedef my_bool ALARM; |
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#define thr_alarm_init(A) (*(A))=0
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#define thr_alarm_in_use(A) (*(A) != 0)
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#define thr_end_alarm(A)
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#define thr_alarm(A,B,C) ((*(A)=1)-1)
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/* The following should maybe be (*(A)) */
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#define thr_got_alarm(A) 0
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#define init_thr_alarm(A)
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#define thr_alarm_kill(A)
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#define resize_thr_alarm(N)
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#define end_thr_alarm(A)
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#else
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typedef int thr_alarm_entry; |
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#define thr_got_alarm(thr_alarm) (**(thr_alarm))
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typedef thr_alarm_entry* thr_alarm_t; |
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typedef struct st_alarm { |
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ulong expire_time; |
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thr_alarm_entry alarmed; /* set when alarm is due */ |
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pthread_t thread; |
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my_thread_id thread_id; |
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my_bool malloced; |
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} ALARM; |
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extern uint thr_client_alarm; |
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extern pthread_t alarm_thread; |
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#define thr_alarm_init(A) (*(A))=0
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#define thr_alarm_in_use(A) (*(A)!= 0)
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void init_thr_alarm(uint max_alarm); |
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void resize_thr_alarm(uint max_alarms); |
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my_bool thr_alarm(thr_alarm_t *alarmed, uint sec, ALARM *buff); |
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void thr_alarm_kill(my_thread_id thread_id); |
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void thr_end_alarm(thr_alarm_t *alarmed); |
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void end_thr_alarm(my_bool free_structures); |
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sig_handler process_alarm(int); |
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#ifndef thr_got_alarm
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my_bool thr_got_alarm(thr_alarm_t *alrm); |
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#endif
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#endif /* DONT_USE_THR_ALARM */ |
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */ |
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#endif /* _thr_alarm_h */ |