rculfhash: make cds_lfht_iter_get_node argument const

[urcu.git] / urcu / compiler.h

diff --git a/urcu/compiler.h b/urcu/compiler.h
deleted file mode 100644 (file)
index f8fce5a..0000000
--- a/urcu/compiler.h
+++ /dev/null
@@ -1,74 +0,0 @@
-#ifndef _URCU_COMPILER_H
-#define _URCU_COMPILER_H
-
-/*
- * compiler.h
- *
- * Compiler definitions.
- *
- * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
- * OR IMPLIED.  ANY USE IS AT YOUR OWN RISK.
- *
- * Permission is hereby granted to use or copy this program
- * for any purpose,  provided the above notices are retained on all copies.
- * Permission to modify the code and to distribute modified code is granted,
- * provided the above notices are retained, and a notice that the code was
- * modified is included with the above copyright notice.
- */
-
-#include <stddef.h>    /* for offsetof */
-
-#define likely(x)      __builtin_expect(!!(x), 1)
-#define unlikely(x)    __builtin_expect(!!(x), 0)
-
-#define        cmm_barrier()   asm volatile("" : : : "memory")
-
-/*
- * Instruct the compiler to perform only a single access to a variable
- * (prohibits merging and refetching). The compiler is also forbidden to reorder
- * successive instances of CMM_ACCESS_ONCE(), but only when the compiler is aware of
- * particular ordering. Compiler ordering can be ensured, for example, by
- * putting two CMM_ACCESS_ONCE() in separate C statements.
- *
- * This macro does absolutely -nothing- to prevent the CPU from reordering,
- * merging, or refetching absolutely anything at any time.  Its main intended
- * use is to mediate communication between process-level code and irq/NMI
- * handlers, all running on the same CPU.
- */
-#define CMM_ACCESS_ONCE(x)     (*(volatile typeof(x) *)&(x))
-
-#ifndef caa_max
-#define caa_max(a,b) ((a)>(b)?(a):(b))
-#endif
-
-#ifndef caa_min
-#define caa_min(a,b) ((a)<(b)?(a):(b))
-#endif
-
-#if defined(__SIZEOF_LONG__)
-#define CAA_BITS_PER_LONG      (__SIZEOF_LONG__ * 8)
-#elif defined(_LP64)
-#define CAA_BITS_PER_LONG      64
-#else
-#define CAA_BITS_PER_LONG      32
-#endif
-
-/*
- * caa_container_of - Get the address of an object containing a field.
- *
- * @ptr: pointer to the field.
- * @type: type of the object.
- * @member: name of the field within the object.
- */
-#define caa_container_of(ptr, type, member)                            \
-       ({                                                              \
-               const typeof(((type *) NULL)->member) * __ptr = (ptr);  \
-               (type *)((char *)__ptr - offsetof(type, member));       \
-       })
-
-#define CAA_BUILD_BUG_ON_ZERO(cond) (sizeof(struct { int:-!!(cond); }))
-#define CAA_BUILD_BUG_ON(cond) ((void)BUILD_BUG_ON_ZERO(cond))
-
-#endif /* _URCU_COMPILER_H */