diff options
Diffstat (limited to 'src/include/serial.i')
-rw-r--r-- | src/include/serial.i | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/src/include/serial.i b/src/include/serial.i deleted file mode 100644 index 0d04e1f716b..00000000000 --- a/src/include/serial.i +++ /dev/null @@ -1,98 +0,0 @@ -/*- - * Copyright (c) 2008-2012 WiredTiger, Inc. - * All rights reserved. - * - * See the file LICENSE for redistribution information. - */ - -/* - * Serialization: serialization support allows scheduling operations requiring - * serialized access to a piece of memory, normally by a different thread of - * control. This includes updating and evicting pages from trees. - * - * __wt_session_serialize_func -- - * Schedule a serialization request, and block or spin until it completes. - */ -static inline int -__wt_session_serialize_func(WT_SESSION_IMPL *session, - wq_state_t op, void (*func)(WT_SESSION_IMPL *), void *args) -{ - WT_CONNECTION_IMPL *conn; - - conn = S2C(session); - - /* - * Threads serializing access to data using a function: - * call the function while holding a spinlock - * update the session sleeping state, and - * if necessary, block until an async action completes. - */ - session->wq_args = args; - session->wq_sleeping = (op == WT_SERIAL_EVICT); - - /* Functions are serialized by holding a spinlock. */ - __wt_spin_lock(session, &conn->serial_lock); - - func(session); - - __wt_spin_unlock(session, &conn->serial_lock); - - switch (op) { - case WT_SERIAL_EVICT: - __wt_evict_server_wake(session); - break; - default: - break; - } - - /* - * If we are waiting on a server thread, block on the session condition - * variable: when the operation is complete, this will be notified and - * we can continue. - */ - if (session->wq_sleeping) - __wt_cond_wait(session, session->cond); - return (session->wq_ret); -} - -/* - * __wt_session_serialize_wrapup -- - * Server function cleanup. - */ -static inline void -__wt_session_serialize_wrapup(WT_SESSION_IMPL *session, WT_PAGE *page, int ret) -{ - WT_BTREE *btree; - - btree = session->btree; - - /* - * If passed a page and the return value is OK, we modified the tree - * and the page. - */ - if (page != NULL && ret == 0) { - /* - * A memory barrier is required for setting the tree's modified - * value, we depend on the barrier called in setting the page's - * modified value. - */ - btree->modified = 1; - - __wt_page_modify_set(page); - } - - /* - * Publish: there must be a barrier to ensure the return value is set - * before the calling thread can see its results, and the page's new - * write generation makes it to memory. The latter isn't a correctness - * issue, the write generation just needs to be updated so that readers - * get credit for reading the right version of the page, otherwise, - * they will have to retry their update for reading an old version of - * the page. - */ - WT_PUBLISH(session->wq_ret, ret); - - /* If the calling thread is sleeping, wake it up. */ - if (session->wq_sleeping) - __wt_cond_signal(session, session->cond); -} |