diff options
Diffstat (limited to 'src/pulsecore/macro.h')
| -rw-r--r-- | src/pulsecore/macro.h | 62 |
1 files changed, 42 insertions, 20 deletions
diff --git a/src/pulsecore/macro.h b/src/pulsecore/macro.h index cf662510..ce88c1b9 100644 --- a/src/pulsecore/macro.h +++ b/src/pulsecore/macro.h @@ -59,39 +59,36 @@ #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)) /* Rounds up */ -static inline size_t pa_page_align(size_t l) { - return ((l + PA_PAGE_SIZE - 1) / PA_PAGE_SIZE) * PA_PAGE_SIZE; +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. */ +/* 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; \ }) @@ -101,7 +98,8 @@ static inline size_t pa_page_align(size_t l) { #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; \ }) @@ -111,7 +109,8 @@ static inline size_t pa_page_align(size_t l) { #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)); \ @@ -122,7 +121,8 @@ static inline size_t pa_page_align(size_t l) { #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)); \ @@ -135,6 +135,28 @@ static inline size_t pa_page_align(size_t l) { * 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 + /* This type is not intended to be used in exported APIs! Use classic "int" there! */ #ifdef HAVE_STD_BOOL typedef _Bool pa_bool_t; |