/builddir/build/BUILD/libutil++-1.4.0/src/sella/util/CommonMacro.h

/*
** util++
** $Id: CommonMacro.h 1230 2014-11-16 02:32:01Z sella $
** Copyright (c) 2011-2014 Digital Genesis, LLC. All Rights Reserved.
** Released under the LGPL Version 2.1 License.
** http://www.digitalgenesis.com
*/

#ifndef __libutilxx__sella__util__CommonMacro_H__
#define __libutilxx__sella__util__CommonMacro_H__

#define PREFETCH(addr, rw, locality)    __builtin_prefetch(addr, rw, locality)


#define PREFETCH_RO 0
#define PREFETCH_RW 1

#define PREFETCH_LOCALITY_NONE    0
#define PREFETCH_LOCALITY_LOW     1
#define PREFETCH_LOCALITY_MEDIUM  2
#define PREFETCH_LOCALITY_HIGH    3

#define  STANDARD_TYPEDEF(x)          \
        typedef std::shared_ptr<x> shared; \
        typedef x *                ptr;

#define  CAS(variable, read, write) __sync_bool_compare_and_swap((variable), (read), (write))
 
#define ATOMIC_INC(x)           __sync_add_and_fetch(&(x), 1)
#define ATOMIC_DEC(x)           __sync_dec_and_fetch(&(x), 1)

#if defined __GNUC__ && (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 2))
        #define LIBFLOW___API_DEPRECATED __attribute__((__deprecated__))
#else
        #define LIBFLOW___API_DEPRECATED
#endif

#if (__GNUC__ >= 3)
        #define LIKELY(x)               __builtin_expect(!!(x), 1) /* '!!' converts any !=0 to a 1 */
        #define UNLIKELY(x)             __builtin_expect((x), 0)
#else
        #define LIKELY(x)               (x)
        #define UNLIKELY(x)             (x)
#endif

#define BSWAP64(x)                      __builtin_bswap64((x))
#define BSWAP32(x)                      __builtin_bswap32((x))

#define CLZ32(x)                                (((x) == 0) ? 32 : __builtin_clzl(x))
#define CLZ64(x)                                (((x) == 0) ? 64 : __builtin_clzll(x))

#define SAFE_FREE(x)                    if (x != 0) { free(x); x = 0; }
#define SAFE_DELETE(x)          if (x != 0) { delete x; x = 0; }
#define SAFE_DELETE_ARRAY(x)    if (x != 0) { delete[] x; x = 0; }
#include <regex.h>
#define SAFE_REGFREE(x)         if (x->buffer != NULL) { regfree(x); bzero(x, sizeof(regex_t)); }

#ifndef FD_COPY
        #include <string.h>
        #define FD_COPY(d,s)            memcpy((d), (s), sizeof(*(d)))
#endif

#include <endian.h>
#ifdef _BIG_ENDIAN
        #define htonll(x)   (x)
        #define ntohll(x)   (x)
#elif defined(__GNUC__) && defined(__GLIBC__)
        #include <byteswap.h>
        #define htonll(x)   bswap_64(x)
        #define ntohll(x)   bswap_64(x)
#else
        #define htonll(x)   ((((uint64_t)htonl(x)) << 32) + htonl(x >> 32))
        #define ntohll(x)   ((((uint64_t)ntohl(x)) << 32) + ntohl(x >> 32))
#endif

#endif

/*
** vim: noet ts=3 sw=3
*/

---