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#ifndef foopulsemacrohfoo
#define foopulsemacrohfoo
/***
This file is part of PulseAudio.
Copyright 2004-2006 Lennart Poettering
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio 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 Lesser General Public License
along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
***/
#include <sys/types.h>
#include <unistd.h>
#include <assert.h>
#include <limits.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#ifndef PACKAGE
#error "Please include config.h before including this file!"
#endif
/* Rounds down */
static inline void* PA_ALIGN_PTR(const void *p) {
return (void*) (((size_t) p) & ~(sizeof(void*) - 1));
}
/* Rounds up */
static inline size_t PA_ALIGN(size_t l) {
return ((l + sizeof(void*) - 1) & ~(sizeof(void*) - 1));
}
#if defined(__GNUC__)
#define PA_UNUSED __attribute__ ((unused))
#else
#define PA_UNUSED
#endif
#define PA_ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0]))
#if defined(__GNUC__)
#define PA_DECLARE_ALIGNED(n,t,v) t v __attribute__ ((aligned (n)))
#else
#define PA_DECLARE_ALIGNED(n,t,v) t v
#endif
#ifdef __GNUC__
#define typeof __typeof__
#endif
/* The users of PA_MIN and PA_MAX, PA_CLAMP, PA_ROUND_UP should be
* aware that these macros on non-GCC executed code with side effects
* twice. It is thus considered misuse to use code with side effects
* as arguments to MIN and MAX. */
#ifdef __GNUC__
#define PA_MAX(a,b) \
__extension__ ({ \
typeof(a) _a = (a); \
typeof(b) _b = (b); \
_a > _b ? _a : _b; \
})
#else
#define PA_MAX(a, b) ((a) > (b) ? (a) : (b))
#endif
#ifdef __GNUC__
#define PA_MIN(a,b) \
__extension__ ({ \
typeof(a) _a = (a); \
typeof(b) _b = (b); \
_a < _b ? _a : _b; \
})
#else
#define PA_MIN(a, b) ((a) < (b) ? (a) : (b))
#endif
#ifdef __GNUC__
#define PA_ROUND_UP(a, b) \
__extension__ ({ \
typeof(a) _a = (a); \
typeof(b) _b = (b); \
((_a + _b - 1) / _b) * _b; \
})
#else
#define PA_ROUND_UP(a, b) ((((a) + (b) - 1) / (b)) * (b))
#endif
#ifdef __GNUC__
#define PA_ROUND_DOWN(a, b) \
__extension__ ({ \
typeof(a) _a = (a); \
typeof(b) _b = (b); \
(_a / _b) * _b; \
})
#else
#define PA_ROUND_DOWN(a, b) (((a) / (b)) * (b))
#endif
#ifdef __GNUC__
#define PA_CLIP_SUB(a, b) \
__extension__ ({ \
typeof(a) _a = (a); \
typeof(b) _b = (b); \
_a > _b ? _a - _b : 0; \
})
#else
#define PA_CLIP_SUB(a, b) ((a) > (b) ? (a) - (b) : 0)
#endif
#ifdef __GNUC__
#define PA_PRETTY_FUNCTION __PRETTY_FUNCTION__
#else
#define PA_PRETTY_FUNCTION ""
#endif
#define pa_return_if_fail(expr) \
do { \
if (PA_UNLIKELY(!(expr))) { \
pa_log_debug("Assertion '%s' failed at %s:%u, function %s.", #expr , __FILE__, __LINE__, PA_PRETTY_FUNCTION); \
return; \
} \
} while(false)
#define pa_return_val_if_fail(expr, val) \
do { \
if (PA_UNLIKELY(!(expr))) { \
pa_log_debug("Assertion '%s' failed at %s:%u, function %s.", #expr , __FILE__, __LINE__, PA_PRETTY_FUNCTION); \
return (val); \
} \
} while(false)
#define pa_return_null_if_fail(expr) pa_return_val_if_fail(expr, NULL)
/* pa_assert_se() is an assert which guarantees side effects of x,
* i.e. is never optimized away, regardless of NDEBUG or FASTPATH. */
#ifndef __COVERITY__
#define pa_assert_se(expr) \
do { \
if (PA_UNLIKELY(!(expr))) { \
pa_log_error("Assertion '%s' failed at %s:%u, function %s(). Aborting.", #expr , __FILE__, __LINE__, PA_PRETTY_FUNCTION); \
abort(); \
} \
} while (false)
#else
#define pa_assert_se(expr) \
do { \
int _unique_var = (expr); \
if (!_unique_var) \
abort(); \
} while (false)
#endif
/* Does exactly nothing */
#define pa_nop() do {} while (false)
/* pa_assert() is an assert that may be optimized away by defining
* NDEBUG. pa_assert_fp() is an assert that may be optimized away by
* defining FASTPATH. It is supposed to be used in inner loops. It's
* there for extra paranoia checking and should probably be removed in
* production builds. */
#ifdef NDEBUG
#define pa_assert(expr) pa_nop()
#define pa_assert_fp(expr) pa_nop()
#elif defined (FASTPATH)
#define pa_assert(expr) pa_assert_se(expr)
#define pa_assert_fp(expr) pa_nop()
#else
#define pa_assert(expr) pa_assert_se(expr)
#define pa_assert_fp(expr) pa_assert_se(expr)
#endif
#ifdef NDEBUG
#define pa_assert_not_reached() abort()
#else
#define pa_assert_not_reached() \
do { \
pa_log_error("Code should not be reached at %s:%u, function %s(). Aborting.", __FILE__, __LINE__, PA_PRETTY_FUNCTION); \
abort(); \
} while (false)
#endif
/* A compile time assertion */
#define pa_assert_cc(expr) \
do { \
switch (0) { \
case 0: \
case !!(expr): \
; \
} \
} while (false)
#define PA_PTR_TO_UINT(p) ((unsigned int) ((uintptr_t) (p)))
#define PA_UINT_TO_PTR(u) ((void*) ((uintptr_t) (u)))
#define PA_PTR_TO_UINT32(p) ((uint32_t) ((uintptr_t) (p)))
#define PA_UINT32_TO_PTR(u) ((void*) ((uintptr_t) (u)))
#define PA_PTR_TO_INT(p) ((int) ((intptr_t) (p)))
#define PA_INT_TO_PTR(u) ((void*) ((intptr_t) (u)))
#define PA_PTR_TO_INT32(p) ((int32_t) ((intptr_t) (p)))
#define PA_INT32_TO_PTR(u) ((void*) ((intptr_t) (u)))
#ifdef OS_IS_WIN32
#define PA_PATH_SEP "\\"
#define PA_PATH_SEP_CHAR '\\'
#else
#define PA_PATH_SEP "/"
#define PA_PATH_SEP_CHAR '/'
#endif
#if defined(__GNUC__) && defined(__ELF__)
#define PA_WARN_REFERENCE(sym, msg) \
__asm__(".section .gnu.warning." #sym); \
__asm__(".asciz \"" msg "\""); \
__asm__(".previous")
#else
#define PA_WARN_REFERENCE(sym, msg)
#endif
#if defined(__i386__) || defined(__x86_64__)
#define PA_DEBUG_TRAP __asm__("int $3")
#else
#define PA_DEBUG_TRAP raise(SIGTRAP)
#endif
#define pa_memzero(x,l) (memset((x), 0, (l)))
#define pa_zero(x) (pa_memzero(&(x), sizeof(x)))
#define PA_INT_TYPE_SIGNED(type) (!!((type) 0 > (type) -1))
#define PA_INT_TYPE_HALF(type) ((type) 1 << (sizeof(type)*8 - 2))
#define PA_INT_TYPE_MAX(type) \
((type) (PA_INT_TYPE_SIGNED(type) \
? (PA_INT_TYPE_HALF(type) - 1 + PA_INT_TYPE_HALF(type)) \
: (type) -1))
#define PA_INT_TYPE_MIN(type) \
((type) (PA_INT_TYPE_SIGNED(type) \
? (-1 - PA_INT_TYPE_MAX(type)) \
: (type) 0))
/* The '#' preprocessor operator doesn't expand any macros that are in the
* parameter, which is why we need a separate macro for those cases where the
* parameter contains a macro that needs expanding. */
#define PA_STRINGIZE(x) #x
#define PA_EXPAND_AND_STRINGIZE(x) PA_STRINGIZE(x)
/* We include this at the very last place */
#include <pulsecore/log.h>
#endif
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