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libc: minimal: implement time() API

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Implement time() API by using clock_gettime(CLOCK_REALTIME, ...).

Signed-off-by: Marcin Niestroj <m.niestroj@emb.dev>
This commit is contained in:
Marcin Niestroj 2021-03-15 23:16:42 +01:00 • committed by Anas Nashif
commit 064c6ef830
4 changed files with 32 additions and 5 deletions
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2
lib/libc/minimal/CMakeLists.txt
View file

@ -20,3 +20,5 @@ zephyr_library_sources(
source/stdout/fprintf.c source/stdout/fprintf.c
source/time/gmtime.c source/time/gmtime.c
) )
zephyr_library_sources_ifdef(CONFIG_POSIX_CLOCK source/time/time.c)

2
lib/libc/minimal/include/time.h
View file

@ -52,6 +52,8 @@ struct tm *gmtime(const time_t *timep);
struct tm *gmtime_r(const time_t *_MLIBC_RESTRICT timep, struct tm *gmtime_r(const time_t *_MLIBC_RESTRICT timep,
struct tm *_MLIBC_RESTRICT result); struct tm *_MLIBC_RESTRICT result);
time_t time(time_t *tloc);
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif

28
lib/libc/minimal/source/time/time.c Normal file
View file

@ -0,0 +1,28 @@
/*
* Copyright (c) 2021 Golioth, Inc.
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <time.h>
/* clock_gettime() prototype */
#include <posix/time.h>
time_t time(time_t *tloc)
{
struct timespec ts;
int ret;
ret = clock_gettime(CLOCK_REALTIME, &ts);
if (ret < 0) {
/* errno is already set by clock_gettime */
return (time_t) -1;
}
if (tloc) {
*tloc = ts.tv_sec;
}
return ts.tv_sec;
}

5
samples/net/civetweb/common/src/libc_extensions.c
View file

@ -159,11 +159,6 @@ long long strtoll(const char *str, char **endptr, int base)
return (long long)strtol(str, endptr, base); return (long long)strtol(str, endptr, base);
} }
time_t time(time_t *t)
{
return 0;
}
/* /*
* Most of the wrappers below are copies of the wrappers in net/sockets.h, * Most of the wrappers below are copies of the wrappers in net/sockets.h,
* but they are available only if CONFIG_NET_SOCKETS_POSIX_NAMES is enabled * but they are available only if CONFIG_NET_SOCKETS_POSIX_NAMES is enabled