#include <inttypes.h>
#include <limits.h>
#include <stdarg.h>
-#include <stdbool.h>
-#include <stddef.h>
-#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "compiler.h"
-#include "openvswitch/types.h"
+#include "util.h"
#include "openvswitch/util.h"
-#ifndef va_copy
-#ifdef __va_copy
-#define va_copy __va_copy
-#else
-#define va_copy(dst, src) ((dst) = (src))
-#endif
-#endif
-
-#ifdef __CHECKER__
-#define BUILD_ASSERT(EXPR) ((void) 0)
-#define BUILD_ASSERT_DECL(EXPR) extern int (*build_assert(void))[1]
-#elif !defined(__cplusplus)
-/* Build-time assertion building block. */
-#define BUILD_ASSERT__(EXPR) \
- sizeof(struct { unsigned int build_assert_failed : (EXPR) ? 1 : -1; })
-
-/* Build-time assertion for use in a statement context. */
-#define BUILD_ASSERT(EXPR) (void) BUILD_ASSERT__(EXPR)
-
-/* Build-time assertion for use in a declaration context. */
-#define BUILD_ASSERT_DECL(EXPR) \
- extern int (*build_assert(void))[BUILD_ASSERT__(EXPR)]
-#else /* __cplusplus */
-#include <boost/static_assert.hpp>
-#define BUILD_ASSERT BOOST_STATIC_ASSERT
-#define BUILD_ASSERT_DECL BOOST_STATIC_ASSERT
-#endif /* __cplusplus */
-
-#ifdef __GNUC__
-#define BUILD_ASSERT_GCCONLY(EXPR) BUILD_ASSERT(EXPR)
-#define BUILD_ASSERT_DECL_GCCONLY(EXPR) BUILD_ASSERT_DECL(EXPR)
-#else
-#define BUILD_ASSERT_GCCONLY(EXPR) ((void) 0)
-#define BUILD_ASSERT_DECL_GCCONLY(EXPR) ((void) 0)
-#endif
-
-/* Like the standard assert macro, except writes the failure message to the
- * log. */
-#ifndef NDEBUG
-#define ovs_assert(CONDITION) \
- if (!OVS_LIKELY(CONDITION)) { \
- ovs_assert_failure(OVS_SOURCE_LOCATOR, __func__, #CONDITION); \
- }
-#else
-#define ovs_assert(CONDITION) ((void) (CONDITION))
-#endif
-OVS_NO_RETURN void ovs_assert_failure(const char *, const char *, const char *);
-
-/* This is a void expression that issues a compiler error if POINTER cannot be
- * compared for equality with the given pointer TYPE. This generally means
- * that POINTER is a qualified or unqualified TYPE. However,
- * BUILD_ASSERT_TYPE(POINTER, void *) will accept any pointer to object type,
- * because any pointer to object can be compared for equality with "void *".
- *
- * POINTER can be any expression. The use of "sizeof" ensures that the
- * expression is not actually evaluated, so that any side effects of the
- * expression do not occur.
- *
- * The cast to int is present only to suppress an "expression using sizeof
- * bool" warning from "sparse" (see
- * http://permalink.gmane.org/gmane.comp.parsers.sparse/2967). */
-#define BUILD_ASSERT_TYPE(POINTER, TYPE) \
- ((void) sizeof ((int) ((POINTER) == (TYPE) (POINTER))))
-
-/* Casts 'pointer' to 'type' and issues a compiler warning if the cast changes
- * anything other than an outermost "const" or "volatile" qualifier.
- *
- * The cast to int is present only to suppress an "expression using sizeof
- * bool" warning from "sparse" (see
- * http://permalink.gmane.org/gmane.comp.parsers.sparse/2967). */
-#define CONST_CAST(TYPE, POINTER) \
- (BUILD_ASSERT_TYPE(POINTER, TYPE), \
- (TYPE) (POINTER))
-
extern char *program_name;
#define __ARRAY_SIZE_NOCHECK(ARRAY) (sizeof(ARRAY) / sizeof((ARRAY)[0]))
#define __ARRAY_SIZE(ARRAY) __ARRAY_SIZE_NOCHECK(ARRAY)
#endif
-/* Returns the number of elements in ARRAY. */
-#define ARRAY_SIZE(ARRAY) __ARRAY_SIZE(ARRAY)
-
-/* Returns X / Y, rounding up. X must be nonnegative to round correctly. */
-#define DIV_ROUND_UP(X, Y) (((X) + ((Y) - 1)) / (Y))
-
-/* Returns X rounded up to the nearest multiple of Y. */
-#define ROUND_UP(X, Y) (DIV_ROUND_UP(X, Y) * (Y))
-
-/* Returns the least number that, when added to X, yields a multiple of Y. */
-#define PAD_SIZE(X, Y) (ROUND_UP(X, Y) - (X))
-
-/* Returns X rounded down to the nearest multiple of Y. */
-#define ROUND_DOWN(X, Y) ((X) / (Y) * (Y))
-
-/* Returns true if X is a power of 2, otherwise false. */
-#define IS_POW2(X) ((X) && !((X) & ((X) - 1)))
-
-static inline bool
-is_pow2(uintmax_t x)
-{
- return IS_POW2(x);
-}
-
-/* Returns X rounded up to a power of 2. X must be a constant expression. */
-#define ROUND_UP_POW2(X) RUP2__(X)
-#define RUP2__(X) (RUP2_1(X) + 1)
-#define RUP2_1(X) (RUP2_2(X) | (RUP2_2(X) >> 16))
-#define RUP2_2(X) (RUP2_3(X) | (RUP2_3(X) >> 8))
-#define RUP2_3(X) (RUP2_4(X) | (RUP2_4(X) >> 4))
-#define RUP2_4(X) (RUP2_5(X) | (RUP2_5(X) >> 2))
-#define RUP2_5(X) (RUP2_6(X) | (RUP2_6(X) >> 1))
-#define RUP2_6(X) ((X) - 1)
-
-/* Returns X rounded down to a power of 2. X must be a constant expression. */
-#define ROUND_DOWN_POW2(X) RDP2__(X)
-#define RDP2__(X) (RDP2_1(X) - (RDP2_1(X) >> 1))
-#define RDP2_1(X) (RDP2_2(X) | (RDP2_2(X) >> 16))
-#define RDP2_2(X) (RDP2_3(X) | (RDP2_3(X) >> 8))
-#define RDP2_3(X) (RDP2_4(X) | (RDP2_4(X) >> 4))
-#define RDP2_4(X) (RDP2_5(X) | (RDP2_5(X) >> 2))
-#define RDP2_5(X) ( (X) | ( (X) >> 1))
/* This system's cache line size, in bytes.
* Being wrong hurts performance but not correctness. */
#define OVS_NOT_REACHED() abort()
-/* Given a pointer-typed lvalue OBJECT, expands to a pointer type that may be
- * assigned to OBJECT. */
-#ifdef __GNUC__
-#define OVS_TYPEOF(OBJECT) typeof(OBJECT)
-#else
-#define OVS_TYPEOF(OBJECT) void *
-#endif
-
-/* Given OBJECT of type pointer-to-structure, expands to the offset of MEMBER
- * within an instance of the structure.
- *
- * The GCC-specific version avoids the technicality of undefined behavior if
- * OBJECT is null, invalid, or not yet initialized. This makes some static
- * checkers (like Coverity) happier. But the non-GCC version does not actually
- * dereference any pointer, so it would be surprising for it to cause any
- * problems in practice.
- */
-#ifdef __GNUC__
-#define OBJECT_OFFSETOF(OBJECT, MEMBER) offsetof(typeof(*(OBJECT)), MEMBER)
-#else
-#define OBJECT_OFFSETOF(OBJECT, MEMBER) \
- ((char *) &(OBJECT)->MEMBER - (char *) (OBJECT))
-#endif
-
-/* Yields the size of MEMBER within STRUCT. */
-#define MEMBER_SIZEOF(STRUCT, MEMBER) (sizeof(((STRUCT *) NULL)->MEMBER))
-
-/* Yields the offset of the end of MEMBER within STRUCT. */
-#define OFFSETOFEND(STRUCT, MEMBER) \
- (offsetof(STRUCT, MEMBER) + MEMBER_SIZEOF(STRUCT, MEMBER))
-
-/* Given POINTER, the address of the given MEMBER in a STRUCT object, returns
- the STRUCT object. */
-#define CONTAINER_OF(POINTER, STRUCT, MEMBER) \
- ((STRUCT *) (void *) ((char *) (POINTER) - offsetof (STRUCT, MEMBER)))
-
-/* Given POINTER, the address of the given MEMBER within an object of the type
- * that that OBJECT points to, returns OBJECT as an assignment-compatible
- * pointer type (either the correct pointer type or "void *"). OBJECT must be
- * an lvalue.
- *
- * This is the same as CONTAINER_OF except that it infers the structure type
- * from the type of '*OBJECT'. */
-#define OBJECT_CONTAINING(POINTER, OBJECT, MEMBER) \
- ((OVS_TYPEOF(OBJECT)) (void *) \
- ((char *) (POINTER) - OBJECT_OFFSETOF(OBJECT, MEMBER)))
-
-/* Given POINTER, the address of the given MEMBER within an object of the type
- * that that OBJECT points to, assigns the address of the outer object to
- * OBJECT, which must be an lvalue.
- *
- * Evaluates to (void) 0 as the result is not to be used. */
-#define ASSIGN_CONTAINER(OBJECT, POINTER, MEMBER) \
- ((OBJECT) = OBJECT_CONTAINING(POINTER, OBJECT, MEMBER), (void) 0)
-
-/* As explained in the comment above OBJECT_OFFSETOF(), non-GNUC compilers
- * like MSVC will complain about un-initialized variables if OBJECT
- * hasn't already been initialized. To prevent such warnings, INIT_CONTAINER()
- * can be used as a wrapper around ASSIGN_CONTAINER. */
-#define INIT_CONTAINER(OBJECT, POINTER, MEMBER) \
- ((OBJECT) = NULL, ASSIGN_CONTAINER(OBJECT, POINTER, MEMBER))
-
-/* Given ATTR, and TYPE, cast the ATTR to TYPE by first casting ATTR to
- * (void *). This is to suppress the alignment warning issued by clang. */
-#define ALIGNED_CAST(TYPE, ATTR) ((TYPE) (void *) (ATTR))
-
/* Use "%"PRIuSIZE to format size_t with printf(). */
#ifdef _WIN32
#define PRIdSIZE "Id"
void *xmemdup(const void *, size_t) MALLOC_LIKE;
char *xmemdup0(const char *, size_t) MALLOC_LIKE;
char *xstrdup(const char *) MALLOC_LIKE;
+char *nullable_xstrdup(const char *) MALLOC_LIKE;
char *xasprintf(const char *format, ...) OVS_PRINTF_FORMAT(1, 2) MALLOC_LIKE;
char *xvasprintf(const char *format, va_list) OVS_PRINTF_FORMAT(1, 0) MALLOC_LIKE;
void *x2nrealloc(void *p, size_t *n, size_t s);
/* Returns non-zero if the parameters have equal value. */
static inline int
-ovs_u128_equals(const ovs_u128 *a, const ovs_u128 *b)
+ovs_u128_equals(const ovs_u128 a, const ovs_u128 b)
{
- return (a->u64.hi == b->u64.hi) && (a->u64.lo == b->u64.lo);
+ return (a.u64.hi == b.u64.hi) && (a.u64.lo == b.u64.lo);
}
/* Returns true if 'val' is 0. */
static inline bool
-ovs_u128_is_zero(const ovs_u128 *val)
+ovs_u128_is_zero(const ovs_u128 val)
{
- return !(val->u64.hi || val->u64.lo);
+ return !(val.u64.hi || val.u64.lo);
}
/* Returns true if 'val' is all ones. */
static inline bool
-ovs_u128_is_ones(const ovs_u128 *val)
+ovs_u128_is_ones(const ovs_u128 val)
{
- return ovs_u128_equals(val, &OVS_U128_MAX);
+ return ovs_u128_equals(val, OVS_U128_MAX);
}
/* Returns non-zero if the parameters have equal value. */
static inline int
-ovs_be128_equals(const ovs_be128 *a, const ovs_be128 *b)
+ovs_be128_equals(const ovs_be128 a, const ovs_be128 b)
{
- return (a->be64.hi == b->be64.hi) && (a->be64.lo == b->be64.lo);
+ return (a.be64.hi == b.be64.hi) && (a.be64.lo == b.be64.lo);
}
/* Returns true if 'val' is 0. */
static inline bool
-ovs_be128_is_zero(const ovs_be128 *val)
+ovs_be128_is_zero(const ovs_be128 val)
+{
+ return !(val.be64.hi || val.be64.lo);
+}
+
+static inline ovs_u128
+ovs_u128_and(const ovs_u128 a, const ovs_u128 b)
{
- return !(val->be64.hi || val->be64.lo);
+ ovs_u128 dst;
+
+ dst.u64.hi = a.u64.hi & b.u64.hi;
+ dst.u64.lo = a.u64.lo & b.u64.lo;
+
+ return dst;
}
void xsleep(unsigned int seconds);
projects / cascardo / ovs.git / blobdiff