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Diffstat (limited to 'src/macro.h')
| -rw-r--r-- | src/macro.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/src/macro.h b/src/macro.h new file mode 100644 index 0000000000..622c08eeda --- /dev/null +++ b/src/macro.h @@ -0,0 +1,130 @@ +/*-*- Mode: C; c-basic-offset: 8 -*-*/ + +#ifndef foomacrohfoo +#define foomacrohfoo + +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + systemd 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 for more details. + + You should have received a copy of the GNU General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <assert.h> +#include <sys/types.h> + +#define _printf_attr(a,b) __attribute__ ((format (printf, a, b))) +#define _sentinel __attribute__ ((sentinel)) +#define _noreturn __attribute__((noreturn)) +#define _unused __attribute__ ((unused)) +#define _destructor __attribute__ ((destructor)) +#define _pure __attribute__ ((pure)) +#define _const __attribute__ ((const)) +#define _deprecated __attribute__ ((deprecated)) +#define _packed __attribute__ ((packed)) +#define _malloc __attribute__ ((malloc)) +#define _weak __attribute__ ((weak)) +#define _likely(x) (__builtin_expect(!!(x),1)) +#define _unlikely(x) (__builtin_expect(!!(x),0)) + +/* Rounds up */ +static inline size_t ALIGN(size_t l) { + return ((l + sizeof(void*) - 1) & ~(sizeof(void*) - 1)); +} + +#define ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0])) + +#define MAX(a,b) \ + __extension__ ({ \ + typeof(a) _a = (a); \ + typeof(b) _b = (b); \ + _a > _b ? _a : _b; \ + }) + +#define MIN(a,b) \ + __extension__ ({ \ + typeof(a) _a = (a); \ + typeof(b) _b = (b); \ + _a < _b ? _a : _b; \ + }) + +#define CLAMP(x, low, high) \ + __extension__ ({ \ + typeof(x) _x = (x); \ + typeof(low) _low = (low); \ + typeof(high) _high = (high); \ + ((_x > _high) ? _high : ((_x < _low) ? _low : _x)); \ + }) + +#define assert_se(expr) \ + do { \ + if (_unlikely(!(expr))) \ + log_assert(__FILE__, __LINE__, __PRETTY_FUNCTION__, \ + "Assertion '%s' failed at %s:%u, function %s(). Aborting.", \ + #expr , __FILE__, __LINE__, __PRETTY_FUNCTION__); \ + } while (false) \ + +/* We override the glibc assert() here. */ +#undef assert +#ifdef NDEBUG +#define assert(expr) do {} while(false) +#else +#define assert(expr) assert_se(expr) +#endif + +#define assert_not_reached(t) \ + do { \ + log_assert(__FILE__, __LINE__, __PRETTY_FUNCTION__, \ + "Code should not be reached '%s' at %s:%u, function %s(). Aborting.", \ + t, __FILE__, __LINE__, __PRETTY_FUNCTION__); \ + } while (false) + +#define assert_cc(expr) \ + do { \ + switch (0) { \ + case 0: \ + case !!(expr): \ + ; \ + } \ + } while (false) + +#define PTR_TO_UINT(p) ((unsigned int) ((uintptr_t) (p))) +#define UINT_TO_PTR(u) ((void*) ((uintptr_t) (u))) + +#define PTR_TO_UINT32(p) ((uint32_t) ((uintptr_t) (p))) +#define UINT32_TO_PTR(u) ((void*) ((uintptr_t) (u))) + +#define PTR_TO_INT(p) ((int) ((intptr_t) (p))) +#define INT_TO_PTR(u) ((void*) ((intptr_t) (u))) + +#define TO_INT32(p) ((int32_t) ((intptr_t) (p))) +#define INT32_TO_PTR(u) ((void*) ((intptr_t) (u))) + +#define memzero(x,l) (memset((x), 0, (l))) +#define zero(x) (memzero(&(x), sizeof(x))) + +#define char_array_0(x) x[sizeof(x)-1] = 0; + +#define IOVEC_SET_STRING(i, s) \ + do { \ + struct iovec *_i = &(i); \ + char *_s = (char *)(s); \ + _i->iov_base = _s; \ + _i->iov_len = strlen(_s); \ + } while(false); + +#include "log.h" + +#endif |