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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-04-15 14:57:53 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-04-15 14:57:53 +0000 |
commit | f1893cbaf513c7f0fbca77240fc59707ad039734 (patch) | |
tree | 4a5128533aa866afa19719584a764f0f83b9d165 /nuttx/lib | |
parent | c548df2a3788bfe7527f7fef439d1365cb095e7c (diff) | |
download | px4-nuttx-f1893cbaf513c7f0fbca77240fc59707ad039734.tar.gz px4-nuttx-f1893cbaf513c7f0fbca77240fc59707ad039734.tar.bz2 px4-nuttx-f1893cbaf513c7f0fbca77240fc59707ad039734.zip |
Add time and uptime
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3506 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/lib')
-rw-r--r-- | nuttx/lib/time/lib_time.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/nuttx/lib/time/lib_time.c b/nuttx/lib/time/lib_time.c new file mode 100644 index 000000000..95352f133 --- /dev/null +++ b/nuttx/lib/time/lib_time.c @@ -0,0 +1,90 @@ +/**************************************************************************** + * lib/time/lib_time.c + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <time.h> + +#include <nuttx/clock.h> + +#if !defined(CONFIG_DISABLE_CLOCK) && defined(CONFIG_UPTIME) + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Function: time + * + * Description: + * Return the current system up-time. + * + * Parameters: + * The tloc argument points to an area where the return value is + * also stored. If tloc is a null pointer, no value is stored. + * + * Return Value: + * The current system up time + * + ****************************************************************************/ + +time_t time(time_t *tloc) +{ + /* Get the current uptime from the system */ + + time_t uptime = clock_uptime(); + + /* Return the uptime */ + + if (tloc) + { + *tloc = uptime; + } + return uptime; +} + +#endif /* !CONFIG_DISABLE_CLOCK && CONFIG_UPTIME */ |