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/*-
* Copyright (c) 2014-present MongoDB, Inc.
* Copyright (c) 2008-2014 WiredTiger, Inc.
* All rights reserved.
*
* See the file LICENSE for redistribution information.
*/
#include "wt_internal.h"
/*
* __wt_ext_spin_init --
* Allocate and initialize a spinlock.
*/
int
__wt_ext_spin_init(WT_EXTENSION_API *wt_api, WT_EXTENSION_SPINLOCK *ext_spinlock, const char *name)
{
WT_DECL_RET;
WT_SESSION_IMPL *default_session;
WT_SPINLOCK *lock;
ext_spinlock->spinlock = NULL;
default_session = ((WT_CONNECTION_IMPL *)wt_api->conn)->default_session;
if ((ret = __wt_calloc_one(default_session, &lock)) != 0)
return (ret);
if ((ret = __wt_spin_init(default_session, lock, name)) != 0) {
__wt_free(default_session, lock);
return (ret);
}
ext_spinlock->spinlock = lock;
return (0);
}
/*
* __wt_ext_spin_lock --
* Lock the spinlock.
*/
void
__wt_ext_spin_lock(
WT_EXTENSION_API *wt_api, WT_SESSION *session, WT_EXTENSION_SPINLOCK *ext_spinlock)
{
WT_SPINLOCK *lock;
WT_UNUSED(wt_api); /* Unused parameters */
lock = ((WT_SPINLOCK *)ext_spinlock->spinlock);
__wt_spin_lock((WT_SESSION_IMPL *)session, lock);
}
/*
* __wt_ext_spin_unlock --
* Unlock the spinlock.
*/
void
__wt_ext_spin_unlock(
WT_EXTENSION_API *wt_api, WT_SESSION *session, WT_EXTENSION_SPINLOCK *ext_spinlock)
{
WT_SPINLOCK *lock;
WT_UNUSED(wt_api); /* Unused parameters */
lock = ((WT_SPINLOCK *)ext_spinlock->spinlock);
__wt_spin_unlock((WT_SESSION_IMPL *)session, lock);
}
/*
* __wt_ext_spin_destroy --
* Destroy the spinlock.
*/
void
__wt_ext_spin_destroy(WT_EXTENSION_API *wt_api, WT_EXTENSION_SPINLOCK *ext_spinlock)
{
WT_SESSION_IMPL *default_session;
WT_SPINLOCK *lock;
lock = ((WT_SPINLOCK *)ext_spinlock->spinlock);
/* Default session is used to comply with the lock initialization. */
default_session = ((WT_CONNECTION_IMPL *)wt_api->conn)->default_session;
__wt_spin_destroy(default_session, lock);
__wt_free(default_session, lock);
ext_spinlock->spinlock = NULL;
}
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