1 #ifndef foopulsemacrohfoo
2 #define foopulsemacrohfoo
5 This file is part of PulseAudio.
7 Copyright 2004-2006 Lennart Poettering
9 PulseAudio is free software; you can redistribute it and/or modify
10 it under the terms of the GNU Lesser General Public License as published
11 by the Free Software Foundation; either version 2 of the License,
12 or (at your option) any later version.
14 PulseAudio is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 General Public License for more details.
19 You should have received a copy of the GNU Lesser General Public License
20 along with PulseAudio; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
25 #include <sys/types.h>
33 #include <pulsecore/log.h>
34 #include <pulse/gccmacro.h>
37 #error "Please include config.h before including this file!"
42 #define PA_LIKELY(x) (__builtin_expect(!!(x),1))
43 #define PA_UNLIKELY(x) (__builtin_expect((x),0))
45 #define PA_LIKELY(x) (x)
46 #define PA_UNLIKELY(x) (x)
50 #if defined(PAGE_SIZE)
51 #define PA_PAGE_SIZE ((size_t) PAGE_SIZE)
52 #elif defined(PAGESIZE)
53 #define PA_PAGE_SIZE ((size_t) PAGESIZE)
54 #elif defined(HAVE_SYSCONF)
55 #define PA_PAGE_SIZE ((size_t) (sysconf(_SC_PAGE_SIZE)))
57 /* Let's hope it's like x86. */
58 #define PA_PAGE_SIZE ((size_t) 4096)
61 static inline size_t pa_align(size_t l) {
62 return (((l + sizeof(void*) - 1) / sizeof(void*)) * sizeof(void*));
64 #define PA_ALIGN(x) (pa_align(x))
66 static inline void* pa_page_align_ptr(const void *p) {
67 return (void*) (((size_t) p) & ~(PA_PAGE_SIZE-1));
69 #define PA_PAGE_ALIGN_PTR(x) (pa_page_align_ptr(x))
71 static inline size_t pa_page_align(size_t l) {
72 return l & ~(PA_PAGE_SIZE-1);
74 #define PA_PAGE_ALIGN(x) (pa_page_align(x))
76 #define PA_ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0]))
78 /* The users of PA_MIN and PA_MAX should be aware that these macros on
79 * non-GCC executed code with side effects twice. It is thus
80 * considered misuse to use code with side effects as arguments to MIN
85 __extension__ ({ typeof(a) _a = (a); \
90 #define PA_MAX(a, b) ((a) > (b) ? (a) : (b))
95 __extension__ ({ typeof(a) _a = (a); \
100 #define PA_MIN(a, b) ((a) < (b) ? (a) : (b))
104 #define PA_CLAMP(x, low, high) \
105 __extension__ ({ typeof(x) _x = (x); \
106 typeof(low) _low = (low); \
107 typeof(high) _high = (high); \
108 ((_x > _high) ? _high : ((_x < _low) ? _low : _x)); \
111 #define PA_CLAMP(x, low, high) (((x) > (high)) ? (high) : (((x) < (low)) ? (low) : (x)))
115 #define PA_CLAMP_UNLIKELY(x, low, high) \
116 __extension__ ({ typeof(x) _x = (x); \
117 typeof(low) _low = (low); \
118 typeof(high) _high = (high); \
119 (PA_UNLIKELY(_x > _high) ? _high : (PA_UNLIKELY(_x < _low) ? _low : _x)); \
122 #define PA_CLAMP_UNLIKELY(x, low, high) (PA_UNLIKELY((x) > (high)) ? (high) : (PA_UNLIKELY((x) < (low)) ? (low) : (x)))
125 /* We don't define a PA_CLAMP_LIKELY here, because it doesn't really
126 * make sense: we cannot know if it is more likely that the values is
127 * lower or greater than the boundaries.*/
129 /* This type is not intended to be used in exported APIs! Use classic "int" there! */
131 typedef _Bool pa_bool_t;
133 typedef int pa_bool_t;
137 #define FALSE ((pa_bool_t) 0)
141 #define TRUE (!FALSE)
145 #define PA_PRETTY_FUNCTION __PRETTY_FUNCTION__
147 #define PA_PRETTY_FUNCTION ""
150 #define pa_return_if_fail(expr) \
152 if (PA_UNLIKELY(!(expr))) { \
153 pa_log_debug("Assertion '%s' failed at %s:%u, function %s.\n", #expr , __FILE__, __LINE__, PA_PRETTY_FUNCTION); \
158 #define pa_return_val_if_fail(expr, val) \
160 if (PA_UNLIKELY(!(expr))) { \
161 pa_log_debug("Assertion '%s' failed at %s:%u, function %s.\n", #expr , __FILE__, __LINE__, PA_PRETTY_FUNCTION); \
166 #define pa_return_null_if_fail(expr) pa_return_val_if_fail(expr, NULL)
168 /* An assert which guarantees side effects of x, i.e. is never
170 #define pa_assert_se(expr) \
172 if (PA_UNLIKELY(!(expr))) { \
173 pa_log_error("Assertion '%s' failed at %s:%u, function %s(). Aborting.", #expr , __FILE__, __LINE__, PA_PRETTY_FUNCTION); \
178 /* An assert that may be optimized away by defining NDEBUG */
180 #define pa_assert(expr) do {} while (FALSE)
182 #define pa_assert(expr) pa_assert_se(expr)
185 #define pa_assert_not_reached() \
187 pa_log_error("Code should not be reached at %s:%u, function %s(). Aborting.", __FILE__, __LINE__, PA_PRETTY_FUNCTION); \
191 #define PA_PTR_TO_UINT(p) ((unsigned int) (unsigned long) (p))
192 #define PA_UINT_TO_PTR(u) ((void*) (unsigned long) (u))
194 #define PA_PTR_TO_UINT32(p) ((uint32_t) PA_PTR_TO_UINT(p))
195 #define PA_UINT32_TO_PTR(u) PA_UINT_TO_PTR((uint32_t) u)
197 #define PA_PTR_TO_INT(p) ((int) PA_PTR_TO_UINT(p))
198 #define PA_INT_TO_PTR(u) PA_UINT_TO_PTR((int) u)
200 #define PA_PTR_TO_INT32(p) ((int32_t) PA_PTR_TO_UINT(p))
201 #define PA_INT32_TO_PTR(u) PA_UINT_TO_PTR((int32_t) u)
204 #define PA_PATH_SEP "\\"
205 #define PA_PATH_SEP_CHAR '\\'
207 #define PA_PATH_SEP "/"
208 #define PA_PATH_SEP_CHAR '/'
213 #define PA_WARN_REFERENCE(sym, msg) \
214 __asm__(".section .gnu.warning." #sym); \
215 __asm__(".asciz \"" msg "\""); \
220 #define PA_WARN_REFERENCE(sym, msg)