187 lines
6.4 KiB
C
187 lines
6.4 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
|
|
|
|
#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>
|
|
#include <sys/uio.h>
|
|
#include <inttypes.h>
|
|
|
|
#define PAGE_SIZE 4096
|
|
|
|
#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))
|
|
#define _public_ __attribute__ ((visibility("default")))
|
|
#define _hidden_ __attribute__ ((visibility("hidden")))
|
|
#define _weakref_(x) __attribute__((weakref(#x)))
|
|
#define _introspect_(x) __attribute__((section("introspect." x)))
|
|
|
|
/* Rounds up */
|
|
static inline size_t ALIGN(size_t l) {
|
|
return ((l + sizeof(void*) - 1) & ~(sizeof(void*) - 1));
|
|
}
|
|
|
|
static inline size_t PAGE_ALIGN(size_t l) {
|
|
return ((l + PAGE_SIZE - 1) & ~(PAGE_SIZE -1));
|
|
}
|
|
|
|
#define ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0]))
|
|
|
|
#ifndef MAX
|
|
#define MAX(a,b) \
|
|
__extension__ ({ \
|
|
typeof(a) _a = (a); \
|
|
typeof(b) _b = (b); \
|
|
_a > _b ? _a : _b; \
|
|
})
|
|
#endif
|
|
|
|
#define MAX3(a,b,c) \
|
|
MAX(MAX(a,b),c)
|
|
|
|
#ifndef MIN
|
|
#define MIN(a,b) \
|
|
__extension__ ({ \
|
|
typeof(a) _a = (a); \
|
|
typeof(b) _b = (b); \
|
|
_a < _b ? _a : _b; \
|
|
})
|
|
#endif
|
|
|
|
#define MIN3(a,b,c) \
|
|
MIN(MIN(a,b),c)
|
|
|
|
#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_ULONG(p) ((unsigned long) ((uintptr_t) (p)))
|
|
#define ULONG_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 PTR_TO_LONG(p) ((long) ((intptr_t) (p)))
|
|
#define LONG_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);
|
|
|
|
static inline size_t IOVEC_TOTAL_SIZE(const struct iovec *i, unsigned n) {
|
|
unsigned j;
|
|
size_t r = 0;
|
|
|
|
for (j = 0; j < n; j++)
|
|
r += i[j].iov_len;
|
|
|
|
return r;
|
|
}
|
|
|
|
static inline size_t IOVEC_INCREMENT(struct iovec *i, unsigned n, size_t k) {
|
|
unsigned j;
|
|
|
|
for (j = 0; j < n; j++) {
|
|
size_t sub;
|
|
|
|
if (_unlikely_(k <= 0))
|
|
break;
|
|
|
|
sub = MIN(i[j].iov_len, k);
|
|
i[j].iov_len -= sub;
|
|
i[j].iov_base = (uint8_t*) i[j].iov_base + sub;
|
|
k -= sub;
|
|
}
|
|
|
|
return k;
|
|
}
|
|
|
|
#include "log.h"
|
|
|
|
#endif
|