64 lines
1.3 KiB
C
64 lines
1.3 KiB
C
/**
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* \file
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* Resource for timestamp handling
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* \author
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* Ralf Schlatterbeck <rsc@runtux.com>
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*
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* \brief get/put time in seconds since 1970 (UNIX time)
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* Note: the internal format of the time in seconds is a 64bit number
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* unfortunately javascript (json) will only support double for which
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* the mantissa isn't long enough for representing that number. So we're
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* back to 32 bit and have a year 2038 problem.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "contiki.h"
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#include "xtime.h"
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#include "time_resource.h"
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#include "jsonparse.h"
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#include "er-coap.h"
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#include "generic_resource.h"
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int timestamp_from_string
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(const char *name, const char *uri, const char *query, const char *s)
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{
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struct xtimeval tv;
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// FIXME: Platform has no strtoll (long long)?
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tv.tv_sec = strtol (s, NULL, 10);
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xsettimeofday (&tv, NULL);
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return 0;
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}
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size_t
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timestamp_to_string
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( const char *name
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, const char *uri
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, const char *query
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, char *buf
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, size_t bsize
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)
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{
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struct xtimeval tv;
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xgettimeofday (&tv, NULL);
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// FIXME: Platform doesn't seem to support long long printing
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// We get empty string
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return snprintf (buf, bsize, "%ld", (long)tv.tv_sec);
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}
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GENERIC_RESOURCE
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( timestamp
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, Time
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, s
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, 1
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, timestamp_from_string
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, timestamp_to_string
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);
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/*
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* VI settings, see coding style
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* ex:ts=8:et:sw=2
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*/
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