/usr/include/dovecot/macros.h is in dovecot-dev 1:2.2.9-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 | #ifndef MACROS_H
#define MACROS_H
/* several useful macros, mostly from glib.h */
#ifndef NULL
# define NULL ((void *)0)
#endif
#ifndef FALSE
# define FALSE (0)
#endif
#ifndef TRUE
# define TRUE (!FALSE)
#endif
#define N_ELEMENTS(arr) \
(sizeof(arr) / sizeof((arr)[0]))
#define MEM_ALIGN(size) \
(((size) + MEM_ALIGN_SIZE-1) & ~((unsigned int) MEM_ALIGN_SIZE-1))
#define PTR_OFFSET(ptr, offset) \
((void *) (((unsigned char *) (ptr)) + (offset)))
#define CONST_PTR_OFFSET(ptr, offset) \
((const void *) (((const unsigned char *) (ptr)) + (offset)))
/* Don't use simply MIN/MAX, as they're often defined elsewhere in include
files that are included after this file generating tons of warnings. */
#define I_MIN(a, b) (((a) < (b)) ? (a) : (b))
#define I_MAX(a, b) (((a) > (b)) ? (a) : (b))
/* make it easier to cast from/to pointers. assumes that
sizeof(size_t) == sizeof(void *) and they're both the largest datatypes
that are allowed to be used. so, long long isn't safe with these. */
#define POINTER_CAST(i) \
((void *) ((char *) NULL + (i)))
#define POINTER_CAST_TO(p, type) \
((type) ((const char *) (p) - (const char *) NULL))
/* Define VA_COPY() to do the right thing for copying va_list variables.
config.h may have already defined VA_COPY as va_copy or __va_copy. */
#ifndef VA_COPY
# if defined (__GNUC__) && defined (__PPC__) && \
(defined (_CALL_SYSV) || defined (_WIN32))
# define VA_COPY(ap1, ap2) (*(ap1) = *(ap2))
# elif defined (VA_COPY_AS_ARRAY)
# define VA_COPY(ap1, ap2) memmove ((ap1), (ap2), sizeof (va_list))
# else /* va_list is a pointer */
# define VA_COPY(ap1, ap2) ((ap1) = (ap2))
# endif /* va_list is a pointer */
#endif
/* Provide convenience macros for handling structure
* fields through their offsets.
*/
#define STRUCT_MEMBER_P(struct_p, struct_offset) \
((void *) ((char *) (struct_p) + (long) (struct_offset)))
#define CONST_STRUCT_MEMBER_P(struct_p, struct_offset) \
((const void *) ((const char *) (struct_p) + (long) (struct_offset)))
/* Provide simple macro statement wrappers (adapted from Perl):
STMT_START { statements; } STMT_END;
can be used as a single statement, as in
if (x) STMT_START { ... } STMT_END; else ...
For gcc we will wrap the statements within `({' and `})' braces.
For SunOS they will be wrapped within `if (1)' and `else (void) 0',
and otherwise within `do' and `while (0)'. */
#if !(defined (STMT_START) && defined (STMT_END))
# if defined (__GNUC__) && !defined (__cplusplus) && \
!defined (__STRICT_ANSI__) && !defined (PEDANTIC)
# define STMT_START (void)(
# define STMT_END )
# else
# if (defined (sun) || defined (__sun__))
# define STMT_START if (1)
# define STMT_END else (void)0
# else
# define STMT_START do
# define STMT_END while (0)
# endif
# endif
#endif
/* Provide macros to feature the GCC function attribute. */
#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4)
# define ATTRS_DEFINED
# define ATTR_FORMAT(format_idx, arg_idx) \
__attribute__((format (printf, format_idx, arg_idx)))
# define ATTR_FORMAT_ARG(arg_idx) \
__attribute__((format_arg (arg_idx)))
# define ATTR_SCANF(format_idx, arg_idx) \
__attribute__((format (scanf, format_idx, arg_idx)))
# define ATTR_STRFTIME(format_idx) \
__attribute__((format (strftime, format_idx, 0)))
# define ATTR_UNUSED __attribute__((unused))
# define ATTR_NORETURN __attribute__((noreturn))
# define ATTR_CONST __attribute__((const))
# define ATTR_PURE __attribute__((pure))
#else
# define ATTR_FORMAT(format_idx, arg_idx)
# define ATTR_FORMAT_ARG(arg_idx)
# define ATTR_SCANF(format_idx, arg_idx)
# define ATTR_STRFTIME(format_idx)
# define ATTR_UNUSED
# define ATTR_NORETURN
# define ATTR_CONST
# define ATTR_PURE
#endif
#ifdef HAVE_ATTR_NULL
# define ATTR_NULL(...) __attribute__((null(__VA_ARGS__)))
#else
# define ATTR_NULL(...)
#endif
#ifdef HAVE_ATTR_NOWARN_UNUSED_RESULT
# define ATTR_NOWARN_UNUSED_RESULT __attribute__((nowarn_unused_result))
#else
# define ATTR_NOWARN_UNUSED_RESULT
#endif
#if __GNUC__ > 2
# define ATTR_MALLOC __attribute__((malloc))
#else
# define ATTR_MALLOC
#endif
#if __GNUC__ > 3
/* GCC 4.0 and later */
# define ATTR_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
# define ATTR_SENTINEL __attribute__((sentinel))
#else
# define ATTR_WARN_UNUSED_RESULT
# define ATTR_SENTINEL
#endif
#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
/* GCC 4.3 and later */
# define ATTR_HOT __attribute__((hot))
# define ATTR_COLD __attribute__((cold))
#else
# define ATTR_HOT
# define ATTR_COLD
#endif
/* Macros to provide type safety for callback functions' context parameters */
#if (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 3))
# define CALLBACK_TYPECHECK(callback, type) \
(COMPILE_ERROR_IF_TRUE(!__builtin_types_compatible_p( \
typeof(&callback), type)) ? 1 : 0)
#else
# define CALLBACK_TYPECHECK(callback, type) 0
#endif
#if (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 0)) && !defined(__cplusplus)
# define COMPILE_ERROR_IF_TRUE(condition) \
(sizeof(char[1 - 2 * !!(condition)]) - 1)
# define COMPILE_ERROR_IF_TYPES_NOT_COMPATIBLE(_a, _b) \
COMPILE_ERROR_IF_TRUE( \
!__builtin_types_compatible_p(typeof(_a), typeof(_b)))
#define COMPILE_ERROR_IF_TYPES2_NOT_COMPATIBLE(_a1, _a2, _b) \
COMPILE_ERROR_IF_TRUE( \
!__builtin_types_compatible_p(typeof(_a1), typeof(_b)) && \
!__builtin_types_compatible_p(typeof(_a2), typeof(_b)))
#else
# define COMPILE_ERROR_IF_TRUE(condition) 0
# define COMPILE_ERROR_IF_TYPES_NOT_COMPATIBLE(_a, _b) 0
# define COMPILE_ERROR_IF_TYPES2_NOT_COMPATIBLE(_a1, _a2, _b) 0
#endif
#if __GNUC__ > 2
# define unlikely(expr) __builtin_expect(!!(expr), 0)
# define likely(expr) __builtin_expect(!!(expr), 1)
#else
# define unlikely(expr) expr
# define likely(expr) expr
#endif
/* Provide macros for error handling. */
#ifdef DISABLE_ASSERTS
# define i_assert(expr)
#elif defined (__GNUC__) && !defined (__STRICT_ANSI__)
#define i_assert(expr) STMT_START{ \
if (unlikely(!(expr))) \
i_panic("file %s: line %d (%s): assertion failed: (%s)", \
__FILE__, \
__LINE__, \
__FUNCTION__, \
#expr); }STMT_END
#else /* !__GNUC__ */
#define i_assert(expr) STMT_START{ \
if (unlikely(!(expr))) \
i_panic("file %s: line %d: assertion failed: (%s)", \
__FILE__, \
__LINE__, \
#expr); }STMT_END
#endif
#define i_close_fd(fd) STMT_START { \
if (unlikely(close_keep_errno(fd) < 0)) \
i_error("close(%d[%s:%d]) failed: %m", \
*(fd), __FILE__, __LINE__); \
} STMT_END
#define i_unreached() \
i_panic("file %s: line %d: unreached", __FILE__, __LINE__)
/* Convenience macros to test the versions of dovecot. */
#if defined DOVECOT_VERSION_MAJOR && defined DOVECOT_VERSION_MINOR
# define DOVECOT_PREREQ(maj, min) \
((DOVECOT_VERSION_MAJOR << 16) + DOVECOT_VERSION_MINOR >= ((maj) << 16) + (min))
#else
# define DOVECOT_PREREQ(maj, min) 0
#endif
#endif
|