Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 141 insertions, 0 deletions

diff --git a/storage/perfschema/pfs_atomic.h b/storage/perfschema/pfs_atomic.h
new file mode 100644
index 00000000..959b66dc
--- /dev/null
+++ b/storage/perfschema/pfs_atomic.h
@@ -0,0 +1,141 @@
+/* Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License, version 2.0,
+  as published by the Free Software Foundation.
+
+  This program is also distributed with certain software (including
+  but not limited to OpenSSL) that is licensed under separate terms,
+  as designated in a particular file or component or in included license
+  documentation.  The authors of MySQL hereby grant you an additional
+  permission to link the program and your derivative works with the
+  separately licensed software that they have included with MySQL.
+
+  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, version 2.0, 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,
+  51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#ifndef PFS_ATOMIC_H
+#define PFS_ATOMIC_H
+
+/**
+  @file storage/perfschema/pfs_atomic.h
+  Atomic operations (declarations).
+*/
+
+#include <my_atomic.h>
+
+/** Helper for atomic operations. */
+class PFS_atomic
+{
+public:
+  /** Atomic load. */
+  static inline int32 load_32(int32 *ptr)
+  {
+    return my_atomic_load32(ptr);
+  }
+
+  /** Atomic load. */
+  static inline int64 load_64(int64 *ptr)
+  {
+    return my_atomic_load64(ptr);
+  }
+
+  /** Atomic load. */
+  static inline uint32 load_u32(uint32 *ptr)
+  {
+    return (uint32) my_atomic_load32((int32*) ptr);
+  }
+
+  /** Atomic load. */
+  static inline uint64 load_u64(uint64 *ptr)
+  {
+    return (uint64) my_atomic_load64((int64*) ptr);
+  }
+
+  /** Atomic store. */
+  static inline void store_32(int32 *ptr, int32 value)
+  {
+    my_atomic_store32(ptr, value);
+  }
+
+  /** Atomic store. */
+  static inline void store_64(int64 *ptr, int64 value)
+  {
+    my_atomic_store64(ptr, value);
+  }
+
+  /** Atomic store. */
+  static inline void store_u32(uint32 *ptr, uint32 value)
+  {
+    my_atomic_store32((int32*) ptr, (int32) value);
+  }
+
+  /** Atomic store. */
+  static inline void store_u64(uint64 *ptr, uint64 value)
+  {
+    my_atomic_store64((int64*) ptr, (int64) value);
+  }
+
+  /** Atomic add. */
+  static inline int32 add_32(int32 *ptr, int32 value)
+  {
+    return my_atomic_add32(ptr, value);
+  }
+
+  /** Atomic add. */
+  static inline int64 add_64(int64 *ptr, int64 value)
+  {
+    return my_atomic_add64(ptr, value);
+  }
+
+  /** Atomic add. */
+  static inline uint32 add_u32(uint32 *ptr, uint32 value)
+  {
+    return (uint32) my_atomic_add32((int32*) ptr, (int32) value);
+  }
+
+  /** Atomic add. */
+  static inline uint64 add_u64(uint64 *ptr, uint64 value)
+  {
+    return (uint64) my_atomic_add64((int64*) ptr, (int64) value);
+  }
+
+  /** Atomic compare and swap. */
+  static inline bool cas_32(int32 *ptr, int32 *old_value,
+                            int32 new_value)
+  {
+    return my_atomic_cas32(ptr, old_value, new_value);
+  }
+
+  /** Atomic compare and swap. */
+  static inline bool cas_64(int64 *ptr, int64 *old_value,
+                            int64 new_value)
+  {
+    return my_atomic_cas64(ptr, old_value, new_value);
+  }
+
+  /** Atomic compare and swap. */
+  static inline bool cas_u32(uint32 *ptr, uint32 *old_value,
+                             uint32 new_value)
+  {
+    return my_atomic_cas32((int32*) ptr, (int32*) old_value,
+                           (uint32) new_value);
+  }
+
+  /** Atomic compare and swap. */
+  static inline bool cas_u64(uint64 *ptr, uint64 *old_value,
+                             uint64 new_value)
+  {
+    return my_atomic_cas64((int64*) ptr, (int64*) old_value,
+                            (uint64) new_value);
+  }
+};
+
+#endif
+