Files
mesa/src/c11/time.h
Yonggang Luo 6a933b7f53 c11: Fixes the declaration of timespec_get in time.h for macOS
../src/util/tests/timespec_test.cpp:327:4: error: use of undeclared identifier 'timespec_get'; did you mean 'timespec_eq'?
   timespec_get(&a, TIME_UTC);
   ^~~~~~~~~~~~
   timespec_eq
../src/util/timespec.h:299:1: note: 'timespec_eq' declared here
timespec_eq(const struct timespec *a, const struct timespec *b)

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Acked-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16995>
2022-08-09 17:23:17 +00:00

63 lines
1.4 KiB
C++

/*
* Copyright 2022 Yonggang Luo
* SPDX-License-Identifier: MIT
*
* C11 <time.h> emulation library
*/
#ifndef C11_TIME_H_INCLUDED_
#define C11_TIME_H_INCLUDED_
#include <time.h>
/*---------------------------- macros ---------------------------*/
#ifndef TIME_UTC
#define TIME_UTC 1
#endif
#ifdef __cplusplus
extern "C" {
#endif
/*---------------------------- types ----------------------------*/
/*
* On MINGW `struct timespec` present but `timespec_get` may not present;
* On MSVC `struct timespec` and `timespec_get` present at the same time;
* So detecting `HAVE_STRUCT_TIMESPEC` in meson script dynamically.
*/
#ifndef HAVE_STRUCT_TIMESPEC
struct timespec
{
time_t tv_sec; // Seconds - >= 0
long tv_nsec; // Nanoseconds - [0, 999999999]
};
#endif
/*-------------------------- functions --------------------------*/
#if !defined(HAVE_TIMESPEC_GET)
#define _HAVE_TIMESPEC_GET_NEED_DECL
#elif defined(__APPLE__) && defined(__cplusplus) && (__cplusplus < 201703L)
/* On macOS, the guard for declaration of timespec_get is by
* (defined(__cplusplus) && __cplusplus >= 201703L),
* fix the declaration for C++14 and lower here
*/
#define _HAVE_TIMESPEC_GET_NEED_DECL
#endif
#ifdef _HAVE_TIMESPEC_GET_NEED_DECL
/*-------------------- 7.25.7 Time functions --------------------*/
// 7.25.6.1
int
timespec_get(struct timespec *ts, int base);
#undef _HAVE_TIMESPEC_GET_NEED_DECL
#endif
#ifdef __cplusplus
}
#endif
#endif /* C11_TIME_H_INCLUDED_ */