X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fbasic%2Fmacro.h;fp=src%2Fbasic%2Fmacro.h;h=5088e6720d8640e8e13c1d58e7c74a1da7ff9423;hb=eaca07ccfdf5d7dabc50afc7e539c2413dd69d3e;hp=53d7f9bafa989eb8e2babda486ef51602f782639;hpb=b96ed50e3493103d075ff2ce4c3fbad8f26b2e22;p=elogind.git diff --git a/src/basic/macro.h b/src/basic/macro.h index 53d7f9baf..5088e6720 100644 --- a/src/basic/macro.h +++ b/src/basic/macro.h @@ -22,12 +22,10 @@ ***/ #include -#include -#include -#include -#include #include #include +#include +#include #define _printf_(a,b) __attribute__ ((format (printf, a, b))) #define _alloc_(...) __attribute__ ((alloc_size(__VA_ARGS__))) @@ -296,111 +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 @@ -411,6 +308,15 @@ 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)) @@ -428,21 +334,6 @@ do { \ _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 @@ -467,10 +358,6 @@ do { \ #endif #endif -#define UID_INVALID ((uid_t) -1) -#define GID_INVALID ((gid_t) -1) -#define MODE_INVALID ((mode_t) -1) - #define DEFINE_TRIVIAL_CLEANUP_FUNC(type, func) \ static inline void func##p(type *p) { \ if (*p) \ @@ -478,7 +365,4 @@ do { \ } \ 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"