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#ifndef foopulsemacrohfoo
#define foopulsemacrohfoo
/* $Id$ */
/***
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 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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#include <sys/types.h>
#include <unistd.h>
#include <assert.h>
#include <limits.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <pulsecore/log.h>
#include <pulse/gccmacro.h>
#ifndef PACKAGE
#error "Please include config.h before including this file!"
#endif
#ifndef PA_LIKELY
#ifdef __GNUC__
#define PA_LIKELY(x) (__builtin_expect(!!(x),1))
#define PA_UNLIKELY(x) (__builtin_expect((x),0))
#else
#define PA_LIKELY(x) (x)
#define PA_UNLIKELY(x) (x)
#endif
#endif
#if defined(PAGE_SIZE)
#define PA_PAGE_SIZE ((size_t) PAGE_SIZE)
#elif defined(PAGESIZE)
#define PA_PAGE_SIZE ((size_t) PAGESIZE)
#elif defined(HAVE_SYSCONF)
#define PA_PAGE_SIZE ((size_t) (sysconf(_SC_PAGE_SIZE)))
#else
/* Let's hope it's like x86. */
#define PA_PAGE_SIZE ((size_t) 4096)
#endif
static inline size_t pa_align(size_t l) {
return (((l + sizeof(void*) - 1) / sizeof(void*)) * sizeof(void*));
}
#define PA_ALIGN(x) (pa_align(x))
static inline void* pa_page_align_ptr(const void *p) {
return (void*) (((size_t) p) & ~(PA_PAGE_SIZE-1));
}
#define PA_PAGE_ALIGN_PTR(x) (pa_page_align_ptr(x))
static inline size_t pa_page_align(size_t l) {
return l & ~(PA_PAGE_SIZE-1);
}
#define PA_PAGE_ALIGN(x) (pa_page_align(x))
#define PA_ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0]))
/* The users of PA_MIN and PA_MAX 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_CLAMP(x, low, high) \
__extension__ ({ typeof(x) _x = (x); \
typeof(low) _low = (low); \
typeof(high) _high = (high); \
((_x > _high) ? _high : ((_x < _low) ? _low : _x)); \
})
#else
#define PA_CLAMP(x, low, high) (((x) > (high)) ? (high) : (((x) < (low)) ? (low) : (x)))
#endif
#ifdef __GNUC__
#define PA_CLAMP_UNLIKELY(x, low, high) \
__extension__ ({ typeof(x) _x = (x); \
typeof(low) _low = (low); \
typeof(high) _high = (high); \
(PA_UNLIKELY(_x > _high) ? _high : (PA_UNLIKELY(_x < _low) ? _low : _x)); \
})
#else
#define PA_CLAMP_UNLIKELY(x, low, high) (PA_UNLIKELY((x) > (high)) ? (high) : (PA_UNLIKELY((x) < (low)) ? (low) : (x)))
#endif
/* We don't define a PA_CLAMP_LIKELY here, because it doesn't really
* make sense: we cannot know if it is more likely that the values is
* lower or greater than the boundaries.*/
/* This type is not intended to be used in exported APIs! Use classic "int" there! */
#ifdef HAVE_STD_BOOL
typedef _Bool pa_bool_t;
#else
typedef int pa_bool_t;
#endif
#ifndef FALSE
#define FALSE ((pa_bool_t) 0)
#endif
#ifndef TRUE
#define TRUE (!FALSE)
#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.\n", #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.\n", #expr , __FILE__, __LINE__, PA_PRETTY_FUNCTION); \
return (val); \
} \
} while(FALSE)
#define pa_return_null_if_fail(expr) pa_return_val_if_fail(expr, NULL)
/* An assert which guarantees side effects of x, i.e. is never
* optimized away */
#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)
/* An assert that may be optimized away by defining NDEBUG */
#ifdef NDEBUG
#define pa_assert(expr) do {} while (FALSE)
#else
#define pa_assert(expr) pa_assert_se(expr)
#endif
#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)
#define PA_PTR_TO_UINT(p) ((unsigned int) (unsigned long) (p))
#define PA_UINT_TO_PTR(u) ((void*) (unsigned long) (u))
#define PA_PTR_TO_UINT32(p) ((uint32_t) PA_PTR_TO_UINT(p))
#define PA_UINT32_TO_PTR(u) PA_UINT_TO_PTR((uint32_t) u)
#define PA_PTR_TO_INT(p) ((int) PA_PTR_TO_UINT(p))
#define PA_INT_TO_PTR(u) PA_UINT_TO_PTR((int) u)
#define PA_PTR_TO_INT32(p) ((int32_t) PA_PTR_TO_UINT(p))
#define PA_INT32_TO_PTR(u) PA_UINT_TO_PTR((int32_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
#ifdef __GNUC__
#define PA_WARN_REFERENCE(sym, msg) \
__asm__(".section .gnu.warning." #sym); \
__asm__(".asciz \"" msg "\""); \
__asm__(".previous")
#else
#define PA_WARN_REFERENCE(sym, msg)
#endif
#endif
|
