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-rw-r--r--include/thr_lock.h1
-rw-r--r--myisam/mi_locking.c9
-rw-r--r--myisam/mi_open.c1
-rw-r--r--myisam/myisamdef.h1
-rw-r--r--mysys/thr_lock.c12
5 files changed, 22 insertions, 2 deletions
diff --git a/include/thr_lock.h b/include/thr_lock.h
index 251d8e7c9cf..d34358d5a6b 100644
--- a/include/thr_lock.h
+++ b/include/thr_lock.h
@@ -122,6 +122,7 @@ typedef struct st_thr_lock {
void (*get_status)(void*, int); /* When one gets a lock */
void (*copy_status)(void*,void*);
void (*update_status)(void*); /* Before release of write */
+ void (*restore_status)(void*); /* Before release of read */
my_bool (*check_status)(void *);
} THR_LOCK;
diff --git a/myisam/mi_locking.c b/myisam/mi_locking.c
index 36b793363c5..ee776128eb8 100644
--- a/myisam/mi_locking.c
+++ b/myisam/mi_locking.c
@@ -326,6 +326,15 @@ void mi_update_status(void* param)
}
}
+
+void mi_restore_status(void *param)
+{
+ MI_INFO *info= (MI_INFO*) param;
+ info->state= &info->s->state.state;
+ info->append_insert_at_end= 0;
+}
+
+
void mi_copy_status(void* to,void *from)
{
((MI_INFO*) to)->state= &((MI_INFO*) from)->save_state;
diff --git a/myisam/mi_open.c b/myisam/mi_open.c
index bf20eb3f270..1f7dd23f148 100644
--- a/myisam/mi_open.c
+++ b/myisam/mi_open.c
@@ -505,6 +505,7 @@ MI_INFO *mi_open(const char *name, int mode, uint open_flags)
share->lock.get_status=mi_get_status;
share->lock.copy_status=mi_copy_status;
share->lock.update_status=mi_update_status;
+ share->lock.restore_status= mi_restore_status;
share->lock.check_status=mi_check_status;
}
}
diff --git a/myisam/myisamdef.h b/myisam/myisamdef.h
index 12e2c8e4bec..14f4570771a 100644
--- a/myisam/myisamdef.h
+++ b/myisam/myisamdef.h
@@ -732,6 +732,7 @@ int mi_unique_comp(MI_UNIQUEDEF *def, const byte *a, const byte *b,
my_bool null_are_equal);
void mi_get_status(void* param, int concurrent_insert);
void mi_update_status(void* param);
+void mi_restore_status(void* param);
void mi_copy_status(void* to,void *from);
my_bool mi_check_status(void* param);
void mi_disable_non_unique_index(MI_INFO *info, ha_rows rows);
diff --git a/mysys/thr_lock.c b/mysys/thr_lock.c
index 66848b94651..58b55583c5f 100644
--- a/mysys/thr_lock.c
+++ b/mysys/thr_lock.c
@@ -758,8 +758,16 @@ void thr_unlock(THR_LOCK_DATA *data)
}
else
lock->write.last=data->prev;
- if (lock_type >= TL_WRITE_CONCURRENT_INSERT && lock->update_status)
- (*lock->update_status)(data->status_param);
+ if (lock_type >= TL_WRITE_CONCURRENT_INSERT)
+ {
+ if (lock->update_status)
+ (*lock->update_status)(data->status_param);
+ }
+ else
+ {
+ if (lock->restore_status)
+ (*lock->restore_status)(data->status_param);
+ }
if (lock_type == TL_READ_NO_INSERT)
lock->read_no_write_count--;
data->type=TL_UNLOCK; /* Mark unlocked */