diff options
Diffstat (limited to 'src/shared/macro.h')
| -rw-r--r-- | src/shared/macro.h | 87 |
1 files changed, 61 insertions, 26 deletions
diff --git a/src/shared/macro.h b/src/shared/macro.h index 29d91392f8..0874102ece 100644 --- a/src/shared/macro.h +++ b/src/shared/macro.h @@ -28,6 +28,7 @@ #include <inttypes.h> #define _printf_attr_(a,b) __attribute__ ((format (printf, a, b))) +#define _alloc_(...) __attribute__ ((alloc_size(__VA_ARGS__))) #define _sentinel_ __attribute__ ((sentinel)) #define _noreturn_ __attribute__((noreturn)) #define _unused_ __attribute__ ((unused)) @@ -45,16 +46,37 @@ #define _weakref_(x) __attribute__((weakref(#x))) #define _introspect_(x) __attribute__((section("introspect." x))) #define _alignas_(x) __attribute__((aligned(__alignof(x)))) +#define _cleanup_(x) __attribute__((cleanup(x))) + +/* automake test harness */ +#define EXIT_TEST_SKIP 77 #define XSTRINGIFY(x) #x #define STRINGIFY(x) XSTRINGIFY(x) /* Rounds up */ -#define ALIGN(l) ALIGN_TO((l), sizeof(void*)) + +#define ALIGN4(l) (((l) + 3) & ~3) +#define ALIGN8(l) (((l) + 7) & ~7) + +#if __SIZEOF_POINTER__ == 8 +#define ALIGN(l) ALIGN8(l) +#elif __SIZEOF_POINTER__ == 4 +#define ALIGN(l) ALIGN4(l) +#else +#error "Wut? Pointers are neither 4 nor 8 bytes long?" +#endif + +#define ALIGN_PTR(p) ((void*) ALIGN((unsigned long) p)) +#define ALIGN4_PTR(p) ((void*) ALIGN4((unsigned long) p)) +#define ALIGN8_PTR(p) ((void*) ALIGN8((unsigned long) p)) + static inline size_t ALIGN_TO(size_t l, size_t ali) { return ((l + ali - 1) & ~(ali - 1)); } +#define ALIGN_TO_PTR(p, ali) ((void*) ALIGN_TO((unsigned long) p)) + #define ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0])) /* @@ -64,34 +86,35 @@ static inline size_t ALIGN_TO(size_t l, size_t ali) { * @member: the name of the member within the struct. * */ -#define container_of(ptr, type, member) ({ \ - const typeof( ((type *)0)->member ) *__mptr = (ptr); \ - (type *)( (char *)__mptr - offsetof(type,member) );}) +#define container_of(ptr, type, member) \ + __extension__ ({ \ + const typeof( ((type *)0)->member ) *__mptr = (ptr); \ + (type *)( (char *)__mptr - offsetof(type,member) ); \ + }) -#ifndef MAX -#define MAX(a,b) \ - __extension__ ({ \ - typeof(a) _a = (a); \ - typeof(b) _b = (b); \ - _a > _b ? _a : _b; \ +#undef MAX +#define MAX(a,b) \ + __extension__ ({ \ + typeof(a) _a = (a); \ + typeof(b) _b = (b); \ + _a > _b ? _a : _b; \ }) -#endif -#define MAX3(a,b,c) \ - MAX(MAX(a,b),c) +#define MAX3(x,y,z) \ + __extension__ ({ \ + typeof(x) _c = MAX(x,y); \ + MAX(_c, z); \ + }) -#ifndef MIN +#undef MIN #define MIN(a,b) \ __extension__ ({ \ typeof(a) _a = (a); \ typeof(b) _b = (b); \ _a < _b ? _a : _b; \ }) -#endif - -#define MIN3(a,b,c) \ - MIN(MIN(a,b),c) +#ifndef CLAMP #define CLAMP(x, low, high) \ __extension__ ({ \ typeof(x) _x = (x); \ @@ -99,6 +122,7 @@ static inline size_t ALIGN_TO(size_t l, size_t ali) { typeof(high) _high = (high); \ ((_x > _high) ? _high : ((_x < _low) ? _low : _x)); \ }) +#endif #define assert_se(expr) \ do { \ @@ -156,6 +180,8 @@ static inline size_t ALIGN_TO(size_t l, size_t ali) { #define memzero(x,l) (memset((x), 0, (l))) #define zero(x) (memzero(&(x), sizeof(x))) +#define CHAR_TO_STR(x) ((char[2]) { x, 0 }) + #define char_array_0(x) x[sizeof(x)-1] = 0; #define IOVEC_SET_STRING(i, s) \ @@ -194,14 +220,6 @@ static inline size_t IOVEC_INCREMENT(struct iovec *i, unsigned n, size_t k) { return k; } -#define _cleanup_free_ __attribute__((cleanup(freep))) -#define _cleanup_fclose_ __attribute__((cleanup(fclosep))) -#define _cleanup_close_ __attribute__((cleanup(closep))) -#define _cleanup_closedir_ __attribute__((cleanup(closedirp))) -#define _cleanup_umask_ __attribute__((cleanup(umaskp))) -#define _cleanup_set_free_ __attribute__((cleanup(set_freep))) -#define _cleanup_strv_free_ __attribute__((cleanup(strv_freep))) - #define VA_FORMAT_ADVANCE(format, ap) \ do { \ int _argtypes[128]; \ @@ -247,4 +265,21 @@ do { \ } \ } while(false) + /* Because statfs.t_type can be int on some architecures, we have to cast + * the const magic to the type, otherwise the compiler warns about + * signed/unsigned comparison, because the magic can be 32 bit unsigned. + */ +#define F_TYPE_CMP(a, b) (a == (typeof(a)) b) + + +/* Returns the number of chars needed to format variables of the + * specified type as a decimal string. Adds in extra space for a + * negative '-' prefix. */ + +#define DECIMAL_STR_MAX(type) \ + (1+(sizeof(type) <= 1 ? 3 : \ + sizeof(type) <= 2 ? 5 : \ + sizeof(type) <= 4 ? 10 : \ + sizeof(type) <= 8 ? 20 : sizeof(int[-2*(sizeof(type) > 8)]))) + #include "log.h" |