#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
#include <pulse/gccmacro.h>
#endif
/* Rounds down */
-static inline void* pa_align_ptr(const void *p) {
- return (void*) (((size_t) p) & ~(sizeof(void*)-1));
+static inline void* PA_ALIGN_PTR(const void *p) {
+ return (void*) (((size_t) p) & ~(sizeof(void*) - 1));
}
-#define PA_ALIGN_PTR(x) (pa_align_ptr(x))
/* Rounds up */
-static inline size_t pa_align(size_t l) {
- return (((l + sizeof(void*) - 1) / sizeof(void*)) * sizeof(void*));
+static inline size_t PA_ALIGN(size_t l) {
+ return ((l + sizeof(void*) - 1) & ~(sizeof(void*) - 1));
}
-#define PA_ALIGN(x) (pa_align(x))
/* Rounds down */
-static inline void* pa_page_align_ptr(const void *p) {
- return (void*) (((size_t) p) & ~(PA_PAGE_SIZE-1));
+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);
+/* Rounds up */
+static inline size_t PA_PAGE_ALIGN(size_t l) {
+ return (l + PA_PAGE_SIZE - 1) & ~(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. */
+#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
+
+/* 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); \
+ __extension__ ({ \
+ typeof(a) _a = (a); \
typeof(b) _b = (b); \
_a > _b ? _a : _b; \
})
#ifdef __GNUC__
#define PA_MIN(a,b) \
- __extension__ ({ typeof(a) _a = (a); \
+ __extension__ ({ \
+ typeof(a) _a = (a); \
typeof(b) _b = (b); \
_a < _b ? _a : _b; \
})
#ifdef __GNUC__
#define PA_CLAMP(x, low, high) \
- __extension__ ({ typeof(x) _x = (x); \
+ __extension__ ({ \
+ typeof(x) _x = (x); \
typeof(low) _low = (low); \
typeof(high) _high = (high); \
((_x > _high) ? _high : ((_x < _low) ? _low : _x)); \
#ifdef __GNUC__
#define PA_CLAMP_UNLIKELY(x, low, high) \
- __extension__ ({ typeof(x) _x = (x); \
+ __extension__ ({ \
+ typeof(x) _x = (x); \
typeof(low) _low = (low); \
typeof(high) _high = (high); \
(PA_UNLIKELY(_x > _high) ? _high : (PA_UNLIKELY(_x < _low) ? _low : _x)); \
* make sense: we cannot know if it is more likely that the values is
* lower or greater than the boundaries.*/
+#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
+
/* This type is not intended to be used in exported APIs! Use classic "int" there! */
#ifdef HAVE_STD_BOOL
typedef _Bool pa_bool_t;
#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_MAX(type) \
+ ((type) (PA_INT_TYPE_SIGNED(type) \
+ ? ~(~(type) 0 << (8*sizeof(type)-1)) \
+ : (type) -1))
+
+#define PA_INT_TYPE_MIN(type) \
+ ((type) (PA_INT_TYPE_SIGNED(type) \
+ ? (~(type) 0 << (8*sizeof(type)-1)) \
+ : (type) 0))
+
/* We include this at the very last place */
#include <pulsecore/log.h>