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-rw-r--r--src/pulsecore/macro.h272
1 files changed, 272 insertions, 0 deletions
diff --git a/src/pulsecore/macro.h b/src/pulsecore/macro.h
new file mode 100644
index 0000000..ec8d31c
--- /dev/null
+++ b/src/pulsecore/macro.h
@@ -0,0 +1,272 @@
+#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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