291 lines
6.1 KiB
C
291 lines
6.1 KiB
C
#ifndef LI_FIRST_H
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#define LI_FIRST_H
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#else
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# ifndef _GNU_SOURCE
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# define _GNU_SOURCE
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# endif
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#endif
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#ifndef _DEFAULT_SOURCE
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#define _DEFAULT_SOURCE
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#endif
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#if defined(__APPLE__) && defined(__MACH__)
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#ifndef _DARWIN_C_SOURCE
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#define _DARWIN_C_SOURCE
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#endif
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#endif
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#ifndef __STDC_WANT_LIB_EXT1__
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#define __STDC_WANT_LIB_EXT1__ 1
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#endif
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#ifdef __COVERITY__
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#define _Float128 long double
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#define _Float64x long double
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#define _Float64 double
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#define _Float32x double
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#define _Float32 float
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#endif
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/* enable glibc Y2038 64-bit time_t (where available on 32-bit systems) */
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#ifdef _ILP32
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#ifndef _TIME_BITS
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#define _TIME_BITS 64
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#endif
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#ifndef _FILE_OFFSET_BITS
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#define _FILE_OFFSET_BITS 64
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#endif
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#endif
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#include <sys/types.h>
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#include <stddef.h>
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#ifdef __has_include
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#if __has_include(<sys/cdefs.h>)
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#include <sys/cdefs.h>
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#endif
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#endif
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#ifndef __BEGIN_DECLS
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#ifdef __cplusplus
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#define __BEGIN_DECLS extern "C" {
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#else
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#define __BEGIN_DECLS
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#endif
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#endif
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#ifndef __END_DECLS
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#ifdef __cplusplus
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#define __END_DECLS }
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#else
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#define __END_DECLS
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#endif
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#endif
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#if defined HAVE_STDINT_H
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# include <stdint.h>
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#elif defined HAVE_INTTYPES_H
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# include <inttypes.h>
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#endif
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/* solaris and NetBSD 1.3.x again */
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#if (!defined(HAVE_STDINT_H)) && (!defined(HAVE_INTTYPES_H)) && (!defined(uint32_t))
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# define uint32_t u_int32_t
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#endif
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#include <limits.h>
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#ifndef SIZE_MAX
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# ifdef SIZE_T_MAX
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# define SIZE_MAX SIZE_T_MAX
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# else
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# define SIZE_MAX (~(size_t)0u)
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# endif
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#endif
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#ifndef SSIZE_MAX
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# define SSIZE_MAX ((ssize_t)(SIZE_MAX >> 1))
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#endif
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/* TODO: would be more accurate to create build-system test for sizeof(time_t)*/
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#ifndef HAS_TIME_BITS64
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#if defined(_LP64) || defined(__LP64__) || defined(_WIN64)
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#define HAS_TIME_BITS64 1
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#elif defined(__TIMESIZE)
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#if __TIMESIZE == 64
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#define HAS_TIME_BITS64 1
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#elif defined(__USE_TIME_BITS64)
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#define HAS_TIME_BITS64 1
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#else
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#define HAS_TIME_BITS64 0
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#endif
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#elif defined(_WIN32)
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#ifndef _USE_32BIT_TIME_T
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#define HAS_TIME_BITS64 1
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#else
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#define HAS_TIME_BITS64 0
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#endif
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#elif defined(_ILP32) \
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&& !defined(__USE_TIME_BITS64) \
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&& !defined(__NetBSD__) && !defined(__OpenBSD__) \
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&& (!defined(__FreeBSD__) || !defined(__i386__)) \
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&& !(defined(__APPLE__) && defined(__MACH__))
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#define HAS_TIME_BITS64 0
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#else
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#define HAS_TIME_BITS64 1
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#endif
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#endif
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/* non-standard types created for lighttpd for Y2038 problem
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* reference: https://en.wikipedia.org/wiki/Year_2038_problem */
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#if HAS_TIME_BITS64
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typedef time_t unix_time64_t;
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typedef struct timespec unix_timespec64_t;
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#define TIME64_CAST(t) (t)
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#else /* !HAS_TIME_BITS64 */
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typedef int64_t unix_time64_t;
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struct unix_timespec64 {
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unix_time64_t tv_sec; /* seconds */
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long tv_nsec; /* nanoseconds */
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};
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typedef struct unix_timespec64 unix_timespec64_t;
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#define TIME64_CAST(t) ((unix_time64_t)(uint32_t)(t))
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#endif /* !HAS_TIME_BITS64 */
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#define UNUSED(x) ( (void)(x) )
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#ifndef __has_attribute /* clang */
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#define __has_attribute(x) 0
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#endif
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#ifndef __has_builtin /* clang */
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#define __has_builtin(x) 0
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#endif
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#ifdef __GNUC__
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#ifndef __GNUC_PREREQ
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# ifdef __GNUC_PREREQ__
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# define __GNUC_PREREQ __GNUC_PREREQ__
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# elif defined __GNUC__ && defined __GNUC_MINOR__
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# define __GNUC_PREREQ(maj, min) \
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((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
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# else
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# define __GNUC_PREREQ(maj, min) 0
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# endif
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#endif
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#else
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#define __GNUC_PREREQ(maj,min) 0
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#endif
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#ifndef __builtin_expect
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#if !__has_builtin(__builtin_expect) \
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&& !__GNUC_PREREQ(2,96)
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#define __builtin_expect(x,y) (x)
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#endif
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#endif
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#ifndef __attribute_noinline__
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#if __has_attribute(noinline) \
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|| __GNUC_PREREQ(3,1)
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#define __attribute_noinline__ __attribute__((__noinline__))
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#else
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#define __attribute_noinline__
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#endif
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#endif
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#ifndef __attribute_cold__
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#if __has_attribute(cold) \
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|| __GNUC_PREREQ(4,3)
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#define __attribute_cold__ __attribute__((__cold__))
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#else
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#define __attribute_cold__
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#endif
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#endif
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#ifndef __attribute_hot__
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#if __has_attribute(hot) \
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|| __GNUC_PREREQ(4,3)
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#define __attribute_hot__ __attribute__((__hot__))
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#else
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#define __attribute_hot__
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#endif
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#endif
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#ifndef __attribute_noreturn__
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#if __has_attribute(noreturn) \
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|| __GNUC_PREREQ(2,5)
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#define __attribute_noreturn__ __attribute__((__noreturn__))
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#else
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#define __attribute_noreturn__
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#endif
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#endif
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#ifndef __attribute_fallthrough__
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#if __has_attribute(fallthrough) \
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|| __GNUC_PREREQ(7,0)
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#define __attribute_fallthrough__ __attribute__((__fallthrough__));
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#else
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#define __attribute_fallthrough__ /* fall through */
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#endif
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#endif
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#ifndef __attribute_format__
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#if __has_attribute(format) \
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|| __GNUC_PREREQ(2,95) /*(maybe earlier gcc, too)*/
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#define __attribute_format__(x) __attribute__((__format__ x))
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#else
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#define __attribute_format__(x)
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#endif
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#endif
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#ifndef __attribute_const__
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#if __has_attribute(const) \
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|| __GNUC_PREREQ(2,5)
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#define __attribute_const__ __attribute__((__const__))
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#else
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#define __attribute_const__
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#endif
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#endif
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#ifndef __attribute_pure__
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#if __has_attribute(pure) \
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|| __GNUC_PREREQ(2,96)
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#define __attribute_pure__ __attribute__((__pure__))
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#else
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#define __attribute_pure__
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#endif
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#endif
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#ifndef __attribute_returns_nonnull__
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#if __has_attribute(returns_nonnull) \
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|| __GNUC_PREREQ(4,9)
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#define __attribute_returns_nonnull__ __attribute__((__returns_nonnull__))
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#else
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#define __attribute_returns_nonnull__
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#endif
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#endif
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#ifndef __attribute_nonnull__
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#if __has_attribute(nonnull) \
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|| __GNUC_PREREQ(3,3)
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#define __attribute_nonnull__(params) __attribute__((__nonnull__ params))
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#else
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#define __attribute_nonnull__(params)
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#endif
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#endif
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#ifndef __attribute_malloc__
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#if __has_attribute(malloc) \
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|| __GNUC_PREREQ(2,96)
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#define __attribute_malloc__ __attribute__((__malloc__))
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#elif defined(_MSC_VER)
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#undef restrict
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#define __attribute_malloc__ __declspec(restrict)
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#define restrict __restrict
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#else
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#define __attribute_malloc__
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#endif
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#endif
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#ifndef __attribute_unused__
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#if __has_attribute(unused) \
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|| __GNUC_PREREQ(2,95)
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#define __attribute_unused__ __attribute__((__unused__))
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#else
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#define __attribute_unused__
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#endif
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#endif
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#endif
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