macro.h revision 3b63d2d31d0850bd7a81ab9b468218d2c4c461e8
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering This file is part of systemd.
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering Copyright 2010 Lennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering systemd is free software; you can redistribute it and/or modify it
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering under the terms of the GNU General Public License as published by
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering the Free Software Foundation; either version 2 of the License, or
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering (at your option) any later version.
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering systemd is distributed in the hope that it will be useful, but
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering WITHOUT ANY WARRANTY; without even the implied warranty of
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering General Public License for more details.
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering You should have received a copy of the GNU General Public License
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering along with systemd; If not, see <http://www.gnu.org/licenses/>.
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#define _printf_attr_(a,b) __attribute__ ((format (printf, a, b)))
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#define _sentinel_ __attribute__ ((sentinel))
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#define _noreturn_ __attribute__((noreturn))
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#define _destructor_ __attribute__ ((destructor))
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#define _deprecated_ __attribute__ ((deprecated))
266b538958932e6fc27dfce4917336e70e17e29eTom Gundersen#define _likely_(x) (__builtin_expect(!!(x),1))
288a74cce597f81d3ba01d8a5ca7d2ba5b654b7eRonny Chevalier#define _unlikely_(x) (__builtin_expect(!!(x),0))
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#define _public_ __attribute__ ((visibility("default")))
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#define _hidden_ __attribute__ ((visibility("hidden")))
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#define _weakref_(x) __attribute__((weakref(#x)))
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering/* Rounds up */
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering return ((l + sizeof(void*) - 1) & ~(sizeof(void*) - 1));
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poetteringstatic inline size_t PAGE_ALIGN(size_t l) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering return ((l + PAGE_SIZE - 1) & ~(PAGE_SIZE -1));
914d6c09f1a449c60c8495c179a8bbe012315ba2Tom Gundersen#define ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0]))
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#define MAX3(a,b,c) \
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#define MIN3(a,b,c) \
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering ((_x > _high) ? _high : ((_x < _low) ? _low : _x)); \
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering log_assert(__FILE__, __LINE__, __PRETTY_FUNCTION__, \
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering "Assertion '%s' failed at %s:%u, function %s(). Aborting.", \
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering #expr , __FILE__, __LINE__, __PRETTY_FUNCTION__); \
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering } while (false) \
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering/* We override the glibc assert() here. */
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering log_assert(__FILE__, __LINE__, __PRETTY_FUNCTION__, \
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering "Code should not be reached '%s' at %s:%u, function %s(). Aborting.", \
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering t, __FILE__, __LINE__, __PRETTY_FUNCTION__); \
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering } while (false)
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering switch (0) { \
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering } while (false)
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering#define PTR_TO_UINT(p) ((unsigned int) ((uintptr_t) (p)))
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering#define UINT_TO_PTR(u) ((void*) ((uintptr_t) (u)))
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering#define PTR_TO_UINT32(p) ((uint32_t) ((uintptr_t) (p)))
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering#define UINT32_TO_PTR(u) ((void*) ((uintptr_t) (u)))
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering#define PTR_TO_ULONG(p) ((unsigned long) ((uintptr_t) (p)))
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering#define ULONG_TO_PTR(u) ((void*) ((uintptr_t) (u)))
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering#define PTR_TO_INT(p) ((int) ((intptr_t) (p)))
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering#define INT_TO_PTR(u) ((void*) ((intptr_t) (u)))
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering#define TO_INT32(p) ((int32_t) ((intptr_t) (p)))
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering#define INT32_TO_PTR(u) ((void*) ((intptr_t) (u)))
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering#define PTR_TO_LONG(p) ((long) ((intptr_t) (p)))
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering#define LONG_TO_PTR(u) ((void*) ((intptr_t) (u)))
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering#define memzero(x,l) (memset((x), 0, (l)))
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering#define zero(x) (memzero(&(x), sizeof(x)))
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering#define char_array_0(x) x[sizeof(x)-1] = 0;
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering char *_s = (char *)(s); \
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering } while(false);
a6a4f528899b1dab47408733b4a423c66ea40f7aThomas Hindoe Paaboel Andersenstatic inline size_t IOVEC_TOTAL_SIZE(const struct iovec *i, unsigned n) {
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering for (j = 0; j < n; j++)
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poetteringstatic inline size_t IOVEC_INCREMENT(struct iovec *i, unsigned n, size_t k) {
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering for (j = 0; j < n; j++) {
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering i[j].iov_base = (uint8_t*) i[j].iov_base + sub;