mariadb/include/wqueue.h
unknown 190de95f6f Locking for read and write made waiting for each other (with loose
scheme for the same thread locking).


include/my_pthread.h:
  Added variable for lock diffirentiation.
include/wqueue.h:
  New release call.
mysys/wqueue.c:
  New release call in case of read/write lock.
storage/maria/ma_pagecache.c:
  Locking for read and write made waitimg for each other.
storage/maria/unittest/Makefile.am:
  New test added.
storage/maria/unittest/ma_pagecache_consist.c:
  Fixed thread initialization in the test.
storage/maria/unittest/ma_pagecache_rwconsist.c:
  New BitKeeper file ``storage/maria/unittest/ma_pagecache_rwconsist.c''
2008-02-22 22:32:34 +02:00

27 lines
832 B
C

#ifndef _wqueue_h
#define _wqueue_h
#include <my_global.h>
#include <my_pthread.h>
/* info about requests in a waiting queue */
typedef struct st_pagecache_wqueue
{
struct st_my_thread_var *last_thread; /* circular list of waiting
threads */
} WQUEUE;
#ifdef THREAD
void wqueue_link_into_queue(WQUEUE *wqueue, struct st_my_thread_var *thread);
void wqueue_unlink_from_queue(WQUEUE *wqueue, struct st_my_thread_var *thread);
void wqueue_add_to_queue(WQUEUE *wqueue, struct st_my_thread_var *thread);
void wqueue_add_and_wait(WQUEUE *wqueue,
struct st_my_thread_var *thread,
pthread_mutex_t *lock);
void wqueue_release_queue(WQUEUE *wqueue);
void wqueue_release_one_locktype_from_queue(WQUEUE *wqueue);
#endif
#endif