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authorMax Kellermann <max@duempel.org>2013-01-02 20:56:21 +0100
committerMax Kellermann <max@duempel.org>2013-01-02 20:56:21 +0100
commit51a2d09eb7fd8bc22a25e151878e6809b58bc21f (patch)
tree64f87cab1f5d55a219fc3c9d3d2dac5d65e0aba5 /src/db_lock.h
parent22f0ef6d6b2d2c66def0e0e93442b01089e388e9 (diff)
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db_lock: convert to C++
Diffstat (limited to 'src/db_lock.h')
-rw-r--r--src/db_lock.h99
1 files changed, 0 insertions, 99 deletions
diff --git a/src/db_lock.h b/src/db_lock.h
deleted file mode 100644
index eed71eec0..000000000
--- a/src/db_lock.h
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
- * http://www.musicpd.org
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/** \file
- *
- * Support for locking data structures from the database, for safe
- * multi-threading.
- */
-
-#ifndef MPD_DB_LOCK_H
-#define MPD_DB_LOCK_H
-
-#include "check.h"
-
-#include <glib.h>
-#include <assert.h>
-#include <stdbool.h>
-
-extern GStaticMutex db_mutex;
-
-#ifndef NDEBUG
-
-extern GThread *db_mutex_holder;
-
-/**
- * Does the current thread hold the database lock?
- */
-G_GNUC_PURE
-static inline bool
-holding_db_lock(void)
-{
- return db_mutex_holder == g_thread_self();
-}
-
-#endif
-
-/**
- * Obtain the global database lock. This is needed before
- * dereferencing a #song or #directory. It is not recursive.
- */
-static inline void
-db_lock(void)
-{
- assert(!holding_db_lock());
-
- g_static_mutex_lock(&db_mutex);
-
- assert(db_mutex_holder == NULL);
-#ifndef NDEBUG
- db_mutex_holder = g_thread_self();
-#endif
-}
-
-/**
- * Release the global database lock.
- */
-static inline void
-db_unlock(void)
-{
- assert(holding_db_lock());
-#ifndef NDEBUG
- db_mutex_holder = NULL;
-#endif
-
- g_static_mutex_unlock(&db_mutex);
-}
-
-#ifdef __cplusplus
-
-class ScopeDatabaseLock {
-public:
- ScopeDatabaseLock() {
- db_lock();
- }
-
- ~ScopeDatabaseLock() {
- db_unlock();
- }
-};
-
-#endif
-
-#endif