* Merge

--HG--
branch : trunk

1 files changed, 110 insertions, 0 deletions

diff --git a/externals/mysql/thr_alarm.h b/externals/mysql/thr_alarm.h
new file mode 100644
index 00000000000..fb906039269
--- /dev/null
+++ b/externals/mysql/thr_alarm.h
@@ -0,0 +1,110 @@
+/* Copyright (C) 2000 MySQL AB
+
+   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+/* Prototypes when using thr_alarm library functions */
+
+#ifndef _thr_alarm_h
+#define _thr_alarm_h
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+#ifndef USE_ALARM_THREAD
+#define USE_ONE_SIGNAL_HAND		/* One must call process_alarm */
+#endif
+#ifdef HAVE_rts_threads
+#undef USE_ONE_SIGNAL_HAND
+#define USE_ALARM_THREAD
+#define THR_SERVER_ALARM SIGUSR1
+#else
+#define THR_SERVER_ALARM SIGALRM
+#endif
+
+typedef struct st_alarm_info
+{
+  ulong next_alarm_time;
+  uint active_alarms;
+  uint max_used_alarms;
+} ALARM_INFO;
+
+void thr_alarm_info(ALARM_INFO *info);
+
+#if defined(DONT_USE_THR_ALARM) || !defined(THREAD)
+
+#define USE_ALARM_THREAD
+#undef USE_ONE_SIGNAL_HAND
+
+typedef my_bool thr_alarm_t;
+typedef my_bool ALARM;
+
+#define thr_alarm_init(A) (*(A))=0
+#define thr_alarm_in_use(A) (*(A) != 0)
+#define thr_end_alarm(A)
+#define thr_alarm(A,B,C) ((*(A)=1)-1)
+/* The following should maybe be (*(A)) */
+#define thr_got_alarm(A) 0
+#define init_thr_alarm(A)
+#define thr_alarm_kill(A)
+#define resize_thr_alarm(N)
+#define end_thr_alarm(A)
+
+#else
+#if defined(__WIN__)
+typedef struct st_thr_alarm_entry
+{
+  rf_SetTimer crono;
+} thr_alarm_entry;
+
+#else /* System with posix threads */
+
+typedef int thr_alarm_entry;
+
+#define thr_got_alarm(thr_alarm) (**(thr_alarm))
+
+#endif /* __WIN__ */
+
+typedef thr_alarm_entry* thr_alarm_t;
+
+typedef struct st_alarm {
+  ulong expire_time;
+  thr_alarm_entry alarmed;		/* set when alarm is due */
+  pthread_t thread;
+  my_thread_id thread_id;
+  my_bool malloced;
+} ALARM;
+
+extern uint thr_client_alarm;
+extern pthread_t alarm_thread;
+
+#define thr_alarm_init(A) (*(A))=0
+#define thr_alarm_in_use(A) (*(A)!= 0)
+void init_thr_alarm(uint max_alarm);
+void resize_thr_alarm(uint max_alarms);
+my_bool thr_alarm(thr_alarm_t *alarmed, uint sec, ALARM *buff);
+void thr_alarm_kill(my_thread_id thread_id);
+void thr_end_alarm(thr_alarm_t *alarmed);
+void end_thr_alarm(my_bool free_structures);
+sig_handler process_alarm(int);
+#ifndef thr_got_alarm
+my_bool thr_got_alarm(thr_alarm_t *alrm);
+#endif
+
+
+#endif /* DONT_USE_THR_ALARM */
+
+#ifdef	__cplusplus
+}
+#endif /* __cplusplus */
+#endif /* _thr_alarm_h */