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-rw-r--r--src/basic/macro.h229
1 files changed, 68 insertions, 161 deletions
diff --git a/src/basic/macro.h b/src/basic/macro.h
index cbc3ca97b8..c529c6ecad 100644
--- a/src/basic/macro.h
+++ b/src/basic/macro.h
@@ -22,11 +22,10 @@
***/
#include <assert.h>
-#include <sys/param.h>
-#include <sys/types.h>
-#include <sys/uio.h>
#include <inttypes.h>
#include <stdbool.h>
+#include <sys/param.h>
+#include <sys/types.h>
#define _printf_(a,b) __attribute__ ((format (printf, a, b)))
#define _alloc_(...) __attribute__ ((alloc_size(__VA_ARGS__)))
@@ -123,8 +122,11 @@ static inline unsigned long ALIGN_POWER2(unsigned long u) {
return 1UL << (sizeof(u) * 8 - __builtin_clzl(u - 1UL));
}
-#define ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0]))
-
+#define ELEMENTSOF(x) \
+ __extension__ (__builtin_choose_expr( \
+ !__builtin_types_compatible_p(typeof(x), typeof(&*(x))), \
+ sizeof(x)/sizeof((x)[0]), \
+ (void)0))
/*
* container_of - cast a member of a structure out to the containing structure
* @ptr: the pointer to the member.
@@ -213,18 +215,20 @@ static inline unsigned long ALIGN_POWER2(unsigned long u) {
(__x / __y + !!(__x % __y)); \
})
-#define assert_se(expr) \
+#define assert_message_se(expr, message) \
do { \
if (_unlikely_(!(expr))) \
- log_assert_failed(#expr, __FILE__, __LINE__, __PRETTY_FUNCTION__); \
- } while (false) \
+ log_assert_failed(message, __FILE__, __LINE__, __PRETTY_FUNCTION__); \
+ } while (false)
+
+#define assert_se(expr) assert_message_se(expr, #expr)
/* We override the glibc assert() here. */
#undef assert
#ifdef NDEBUG
#define assert(expr) do {} while(false)
#else
-#define assert(expr) assert_se(expr)
+#define assert(expr) assert_message_se(expr, #expr)
#endif
#define assert_not_reached(t) \
@@ -249,19 +253,19 @@ static inline unsigned long ALIGN_POWER2(unsigned long u) {
REENABLE_WARNING
#endif
-#define assert_log(expr) ((_likely_(expr)) \
- ? (true) \
- : (log_assert_failed_return(#expr, __FILE__, __LINE__, __PRETTY_FUNCTION__), false))
+#define assert_log(expr, message) ((_likely_(expr)) \
+ ? (true) \
+ : (log_assert_failed_return(message, __FILE__, __LINE__, __PRETTY_FUNCTION__), false))
#define assert_return(expr, r) \
do { \
- if (!assert_log(expr)) \
+ if (!assert_log(expr, #expr)) \
return (r); \
} while (false)
#define assert_return_errno(expr, r, err) \
do { \
- if (!assert_log(expr)) { \
+ if (!assert_log(expr, #expr)) { \
errno = err; \
return (r); \
} \
@@ -290,111 +294,10 @@ static inline unsigned long ALIGN_POWER2(unsigned long u) {
#define PTR_TO_SIZE(p) ((size_t) ((uintptr_t) (p)))
#define SIZE_TO_PTR(u) ((void *) ((uintptr_t) (u)))
-/* The following macros add 1 when converting things, since UID 0 is a
- * valid UID, while the pointer NULL is special */
-#define PTR_TO_UID(p) ((uid_t) (((uintptr_t) (p))-1))
-#define UID_TO_PTR(u) ((void*) (((uintptr_t) (u))+1))
-
-#define PTR_TO_GID(p) ((gid_t) (((uintptr_t) (p))-1))
-#define GID_TO_PTR(u) ((void*) (((uintptr_t) (u))+1))
-
-#define PTR_TO_PID(p) ((pid_t) ((uintptr_t) p))
-#define PID_TO_PTR(p) ((void*) ((uintptr_t) p))
-
-#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) \
- do { \
- struct iovec *_i = &(i); \
- char *_s = (char *)(s); \
- _i->iov_base = _s; \
- _i->iov_len = strlen(_s); \
- } while(false)
-
-static inline size_t IOVEC_TOTAL_SIZE(const struct iovec *i, unsigned n) {
- unsigned j;
- size_t r = 0;
-
- for (j = 0; j < n; j++)
- r += i[j].iov_len;
-
- return r;
-}
-
-static inline size_t IOVEC_INCREMENT(struct iovec *i, unsigned n, size_t k) {
- unsigned j;
-
- for (j = 0; j < n; j++) {
- size_t sub;
-
- if (_unlikely_(k <= 0))
- break;
-
- sub = MIN(i[j].iov_len, k);
- i[j].iov_len -= sub;
- i[j].iov_base = (uint8_t*) i[j].iov_base + sub;
- k -= sub;
- }
-
- return k;
-}
-
-#define VA_FORMAT_ADVANCE(format, ap) \
-do { \
- int _argtypes[128]; \
- size_t _i, _k; \
- _k = parse_printf_format((format), ELEMENTSOF(_argtypes), _argtypes); \
- assert(_k < ELEMENTSOF(_argtypes)); \
- for (_i = 0; _i < _k; _i++) { \
- if (_argtypes[_i] & PA_FLAG_PTR) { \
- (void) va_arg(ap, void*); \
- continue; \
- } \
- \
- switch (_argtypes[_i]) { \
- case PA_INT: \
- case PA_INT|PA_FLAG_SHORT: \
- case PA_CHAR: \
- (void) va_arg(ap, int); \
- break; \
- case PA_INT|PA_FLAG_LONG: \
- (void) va_arg(ap, long int); \
- break; \
- case PA_INT|PA_FLAG_LONG_LONG: \
- (void) va_arg(ap, long long int); \
- break; \
- case PA_WCHAR: \
- (void) va_arg(ap, wchar_t); \
- break; \
- case PA_WSTRING: \
- case PA_STRING: \
- case PA_POINTER: \
- (void) va_arg(ap, void*); \
- break; \
- case PA_FLOAT: \
- case PA_DOUBLE: \
- (void) va_arg(ap, double); \
- break; \
- case PA_DOUBLE|PA_FLAG_LONG_DOUBLE: \
- (void) va_arg(ap, long double); \
- break; \
- default: \
- assert_not_reached("Unknown format string argument."); \
- } \
- } \
-} while(false)
-
- /* Because statfs.t_type can be int on some architectures, 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_EQUAL(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 (hence works correctly on signed
@@ -405,38 +308,61 @@ do { \
sizeof(type) <= 4 ? 10 : \
sizeof(type) <= 8 ? 20 : sizeof(int[-2*(sizeof(type) > 8)])))
+#define DECIMAL_STR_WIDTH(x) \
+ ({ \
+ typeof(x) _x_ = (x); \
+ unsigned ans = 1; \
+ while (_x_ /= 10) \
+ ans++; \
+ ans; \
+ })
+
#define SET_FLAG(v, flag, b) \
(v) = (b) ? ((v) | (flag)) : ((v) & ~(flag))
-#define IN_SET(x, y, ...) \
- ({ \
- static const typeof(y) _array[] = { (y), __VA_ARGS__ }; \
- const typeof(y) _x = (x); \
- unsigned _i; \
- bool _found = false; \
- for (_i = 0; _i < ELEMENTSOF(_array); _i++) \
- if (_array[_i] == _x) { \
- _found = true; \
- break; \
- } \
- _found; \
+#define CASE_F(X) case X:
+#define CASE_F_1(CASE, X) CASE_F(X)
+#define CASE_F_2(CASE, X, ...) CASE(X) CASE_F_1(CASE, __VA_ARGS__)
+#define CASE_F_3(CASE, X, ...) CASE(X) CASE_F_2(CASE, __VA_ARGS__)
+#define CASE_F_4(CASE, X, ...) CASE(X) CASE_F_3(CASE, __VA_ARGS__)
+#define CASE_F_5(CASE, X, ...) CASE(X) CASE_F_4(CASE, __VA_ARGS__)
+#define CASE_F_6(CASE, X, ...) CASE(X) CASE_F_5(CASE, __VA_ARGS__)
+#define CASE_F_7(CASE, X, ...) CASE(X) CASE_F_6(CASE, __VA_ARGS__)
+#define CASE_F_8(CASE, X, ...) CASE(X) CASE_F_7(CASE, __VA_ARGS__)
+#define CASE_F_9(CASE, X, ...) CASE(X) CASE_F_8(CASE, __VA_ARGS__)
+#define CASE_F_10(CASE, X, ...) CASE(X) CASE_F_9(CASE, __VA_ARGS__)
+#define CASE_F_11(CASE, X, ...) CASE(X) CASE_F_10(CASE, __VA_ARGS__)
+#define CASE_F_12(CASE, X, ...) CASE(X) CASE_F_11(CASE, __VA_ARGS__)
+#define CASE_F_13(CASE, X, ...) CASE(X) CASE_F_12(CASE, __VA_ARGS__)
+#define CASE_F_14(CASE, X, ...) CASE(X) CASE_F_13(CASE, __VA_ARGS__)
+#define CASE_F_15(CASE, X, ...) CASE(X) CASE_F_14(CASE, __VA_ARGS__)
+#define CASE_F_16(CASE, X, ...) CASE(X) CASE_F_15(CASE, __VA_ARGS__)
+#define CASE_F_17(CASE, X, ...) CASE(X) CASE_F_16(CASE, __VA_ARGS__)
+#define CASE_F_18(CASE, X, ...) CASE(X) CASE_F_17(CASE, __VA_ARGS__)
+#define CASE_F_19(CASE, X, ...) CASE(X) CASE_F_18(CASE, __VA_ARGS__)
+#define CASE_F_20(CASE, X, ...) CASE(X) CASE_F_19(CASE, __VA_ARGS__)
+
+#define GET_CASE_F(_1,_2,_3,_4,_5,_6,_7,_8,_9,_10,_11,_12,_13,_14,_15,_16,_17,_18,_19,_20,NAME,...) NAME
+#define FOR_EACH_MAKE_CASE(...) \
+ GET_CASE_F(__VA_ARGS__,CASE_F_20,CASE_F_19,CASE_F_18,CASE_F_17,CASE_F_16,CASE_F_15,CASE_F_14,CASE_F_13,CASE_F_12,CASE_F_11, \
+ CASE_F_10,CASE_F_9,CASE_F_8,CASE_F_7,CASE_F_6,CASE_F_5,CASE_F_4,CASE_F_3,CASE_F_2,CASE_F_1) \
+ (CASE_F,__VA_ARGS__)
+
+#define IN_SET(x, ...) \
+ ({ \
+ bool _found = false; \
+ /* If the build breaks in the line below, you need to extend the case macros */ \
+ static _unused_ char _static_assert__macros_need_to_be_extended[20 - sizeof((int[]){__VA_ARGS__})/sizeof(int)]; \
+ switch(x) { \
+ FOR_EACH_MAKE_CASE(__VA_ARGS__) \
+ _found = true; \
+ break; \
+ default: \
+ break; \
+ } \
+ _found; \
})
-/* Return a nulstr for a standard cascade of configuration directories,
- * suitable to pass to conf_files_list_nulstr or config_parse_many. */
-#define CONF_DIRS_NULSTR(n) \
- "/etc/" n ".d\0" \
- "/run/" n ".d\0" \
- "/usr/local/lib/" n ".d\0" \
- "/usr/lib/" n ".d\0" \
- CONF_DIR_SPLIT_USR(n)
-
-#ifdef HAVE_SPLIT_USR
-#define CONF_DIR_SPLIT_USR(n) "/lib/" n ".d\0"
-#else
-#define CONF_DIR_SPLIT_USR(n)
-#endif
-
/* Define C11 thread_local attribute even on older gcc compiler
* version */
#ifndef thread_local
@@ -461,22 +387,6 @@ do { \
#endif
#endif
-#define UID_INVALID ((uid_t) -1)
-#define GID_INVALID ((gid_t) -1)
-#define MODE_INVALID ((mode_t) -1)
-
-static inline bool UID_IS_INVALID(uid_t uid) {
- /* We consider both the old 16bit -1 user and the newer 32bit
- * -1 user invalid, since they are or used to be incompatible
- * with syscalls such as setresuid() or chown(). */
-
- return uid == (uid_t) ((uint32_t) -1) || uid == (uid_t) ((uint16_t) -1);
-}
-
-static inline bool GID_IS_INVALID(gid_t gid) {
- return gid == (gid_t) ((uint32_t) -1) || gid == (gid_t) ((uint16_t) -1);
-}
-
#define DEFINE_TRIVIAL_CLEANUP_FUNC(type, func) \
static inline void func##p(type *p) { \
if (*p) \
@@ -484,7 +394,4 @@ static inline bool GID_IS_INVALID(gid_t gid) {
} \
struct __useless_struct_to_allow_trailing_semicolon__
-#define CMSG_FOREACH(cmsg, mh) \
- for ((cmsg) = CMSG_FIRSTHDR(mh); (cmsg); (cmsg) = CMSG_NXTHDR((mh), (cmsg)))
-
#include "log.h"
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-12 02:38:06 +0000