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enable remaining subselect tests, merge with latest from the trunk

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mysys/thr_alarm.h
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#ifndef _thr_alarm_h
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#define _thr_alarm_h
 
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#include <signal.h>
 
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#ifdef  __cplusplus
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extern "C" {
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#endif
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typedef struct st_alarm_info
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{
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  uint32_t next_alarm_time;
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  uint active_alarms;
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  uint max_used_alarms;
 
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  uint32_t active_alarms;
 
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  uint32_t max_used_alarms;
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} ALARM_INFO;
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void thr_alarm_info(ALARM_INFO *info);
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typedef thr_alarm_entry* thr_alarm_t;
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typedef struct st_alarm {
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  uint32_t expire_time;
 
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  time_t 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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  bool malloced;
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} ALARM;
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extern uint thr_client_alarm;
 
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extern uint32_t thr_client_alarm;
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extern pthread_t alarm_thread;
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int compare_uint32_t(void *unused, unsigned char *a_ptr,unsigned char* b_ptr);
 
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RETSIGTYPE thread_alarm(int sig);
 
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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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bool thr_alarm(thr_alarm_t *alarmed, uint sec, ALARM *buff);
 
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void init_thr_alarm(uint32_t max_alarm);
 
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void resize_thr_alarm(uint32_t max_alarms);
 
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bool thr_alarm(thr_alarm_t *alarmed, uint32_t 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(bool free_structures);
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sig_handler process_alarm(int);
 
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RETSIGTYPE process_alarm(int);
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#ifndef thr_got_alarm
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bool thr_got_alarm(thr_alarm_t *alrm);
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#endif