b5d4a01821
Gregory Nutt has submitted the SGA and we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
83 lines
2.8 KiB
C
83 lines
2.8 KiB
C
/****************************************************************************
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* libs/libc/time/lib_time.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <time.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: time
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*
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* Description:
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* Get the current calendar time as a time_t object. The function returns
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* this value, and if the argument is not a null pointer, the value is also
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* set to the object pointed by tloc.
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*
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* Note that this function is just a thin wrapper around clock_gettime()
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* and is provided for compatibility. clock_gettime() is the preferred way
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* to obtain system time.
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*
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* Input Parameters:
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* Pointer to an object of type time_t, where the time value is stored.
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* Alternatively, this parameter can be a null pointer, in which case the
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* parameter is not used, but a time_t object is still returned by the
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* function.
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*
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* Returned Value:
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* The current calendar time as a time_t object. If the argument is not
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* a null pointer, the return value is the same as the one stored in the
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* location pointed by the argument.
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*
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* If the function could not retrieve the calendar time, it returns a -1
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* value.
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*
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****************************************************************************/
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time_t time(time_t *tloc)
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{
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struct timespec ts;
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int ret;
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/* Get the current time from the system */
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ret = clock_gettime(CLOCK_REALTIME, &ts);
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if (ret == OK)
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{
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/* Return the seconds since the epoch */
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if (tloc)
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{
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*tloc = ts.tv_sec;
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}
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return ts.tv_sec;
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}
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return (time_t)ERROR;
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}
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