Add asctime(), asctime_r(), ctime(), and ctime_r().

This commit is contained in:
Gregory Nutt
2015-06-12 11:52:49 -06:00
parent b1f5c2a0b2
commit 718d4d23ad
8 changed files with 567 additions and 104 deletions
+216 -75
View File
@@ -13,7 +13,7 @@
<h1><big><font color="#3c34ec"><i>NuttX Operating System<p>User's Manual</i></font></big></h1>
<p><small>by</small></p>
<p>Gregory Nutt<p>
<p>Last Updated: June 2, 2015</p>
<p>Last Updated: June 12, 2015</p>
</td>
</tr>
</table>
@@ -3884,14 +3884,18 @@ interface of the same name.
<li><a href="#mktime">2.6.4 mktime</a></li>
<li><a href="#gmtime">2.6.5 gmtime</a></li>
<li><a href="#localtime">2.6.6 localtime</a></li>
<li><a href="#gmtimer">2.6.7 gmtime_r</a></li>
<li><a href="#localtimer">2.6.8 localtime_r</a></li>
<li><a href="#timercreate">2.6.9 timer_create</a></li>
<li><a href="#timerdelete">2.6.10 timer_delete</a></li>
<li><a href="#timersettime">2.6.11 timer_settime</a></li>
<li><a href="#timergettime">2.6.12 timer_gettime</a></li>
<li><a href="#timergetoverrun">2.6.13 timer_getoverrun</a></li>
<li><a href="#gettimeofday">2.6.14 gettimeofday</a></li>
<li><a href="#asctime">2.6.7 asctime</a></li>
<li><a href="#ctime">2.6.8 ctime</a></li>
<li><a href="#gmtimer">2.6.9 gmtime_r</a></li>
<li><a href="#localtimer">2.6.10 localtime_r</a></li>
<li><a href="#asctimer">2.6.11 asctime_r</a></li>
<li><a href="#ctimer">2.6.12 ctime_r</a></li>
<li><a href="#timercreate">2.6.13 timer_create</a></li>
<li><a href="#timerdelete">2.6.14 timer_delete</a></li>
<li><a href="#timersettime">2.6.15 timer_settime</a></li>
<li><a href="#timergettime">2.6.16 timer_gettime</a></li>
<li><a href="#timergetoverrun">2.6.17 timer_getoverrun</a></li>
<li><a href="#gettimeofday">2.6.18 gettimeofday</a></li>
</ul>
<H3><a name="clocksettime">2.6.1 clock_settime</a></H3>
@@ -3913,14 +3917,9 @@ interface of the same name.
</ul>
<p>
<b>Returned Value:</b>
</p>
<p>
If successful, the <code>clock_settime()</code> function will return zero (<code>OK</code>).
Otherwise, an non-zero error number will be returned to indicate the error:
</p>
<ul>
<li><code>To be provided</code>.</li>
</ul>
<H3><a name="clockgettime">2.6.2 clock_gettime</a></H3>
<p>
@@ -3941,14 +3940,9 @@ interface of the same name.
</ul>
<p>
<b>Returned Value:</b>
</p>
<p>
If successful, the <code>clock_gettime()</code> function will return zero (<code>OK</code>).
Otherwise, an non-zero error number will be returned to indicate the error:
</p>
<ul>
<li><code>To be provided</code>.</li>
</ul>
<H3><a name="clockgetres">2.6.3 clock_getres</a></H3>
<p>
@@ -3969,14 +3963,9 @@ interface of the same name.
</ul>
<p>
<b>Returned Value:</b>
</p>
<p>
If successful, the <code>clock_getres()</code> function will return zero (<code>OK</code>).
Otherwise, an non-zero error number will be returned to indicate the error:
</p>
<ul>
<li><code>To be provided</code>.</li>
</ul>
<H3><a name="mktime">2.6.4 mktime</a></H3>
<p>
@@ -3997,14 +3986,9 @@ interface of the same name.
</ul>
<p>
<b>Returned Value:</b>
</p>
<p>
If successful, the <code>mktime()</code> function will return zero (<code>OK</code>).
Otherwise, an non-zero error number will be returned to indicate the error:
</p>
<ul>
<li><code>To be provided</code>.</li>
</ul>
<H3><a name="gmtime">2.6.5 gmtime</a></H3>
<p>
@@ -4012,80 +3996,241 @@ interface of the same name.
</p>
<pre>
#include &lt;time.h&gt;
struct tm *gmtime(const time_t *clock);
FAR struct tm *gmtime(FAR const time_t *timep);
</pre>
<p>
<b>Description:</b>
Represents GMT date/time in a type <code>struct tm</code>.
This function is not re-entrant.
</p>
<p>
<b>Input Parameters:</b>
</p>
<ul>
<li><code>clock</code>.
Represents calendar time.
This is an absolute time value representing the number of seconds elapsed since 00:00:00
on January 1, 1970, Coordinated Universal Time (UTC).
<li><code>timep</code>.
Represents GMT calendar time.
This is an absolute time value representing the number of seconds elapsed since 00:00:00 on January 1, 1970, Coordinated Universal Time (UTC).
</li>
</ul>
<p>
<b>Returned Value:</b>
</p>
<p>
If successful, the <code>gmtime()</code> function will return the pointer to a statically
defined instance of <code>struct tim</code>.
If successful, the <code>gmtime()</code> function will return the pointer to a statically defined instance of <code>struct tm</code>.
Otherwise, a NULL will be returned to indicate the error:
</p>
<ul>
<li><code>To be provided</code>.</li>
</ul>
<H3><a name="localtime">2.6.6 localtime</a></H3>
<pre>
#include &lt;time.h&gt;
#define localtime(c) gmtime(c)
</pre>
<ul><pre>
#include &lt;time.h&gt;
#ifdef CONFIG_LIBC_LOCALTIME
# define localtime(c) gmtime(c)
#else
FAR struct tm *localtime(FAR const time_t *timep);
#endif
</pre></ul>
<p>
<b>Description:</b>
Represents local date/time in a type <code>struct tm</code>.
This function is not re-entrant.
</p>
<p>
<b>Input Parameters:</b>
</p>
<ul>
<li><code>timep</code>.
Represents GMT calendar time.
This is an absolute time value representing the number of seconds elapsed since 00:00:00 on January 1, 1970, Coordinated Universal Time (UTC).
</ul>
<p>
<b>Returned Value:</b>
<b>Returned Value:</b>
If successful, the <code>localtime()</code> function will return the pointer to a statically defined instance of <code>struct tm</code>.
Otherwise, a NULL will be returned to indicate the error:
</p>
<H3><a name="gmtimer">2.6.7 gmtime_r</a></H3>
<h3><a name="asctime">2.6.7 asctime</a></h3>
<p>
<b>Function Prototype:</b>
</p>
<ul><pre>
#include &lt;time.h&gt;
#ifdef CONFIG_TIME_EXTENDED
FAR char *asctime(FAR const struct tm *tp);
#endif
</pre></ul>
<p>
<b>Description:</b>
<code>asctime()</code> convert the time provided in a <code>struct tm</code> to a string representation.
<code>asctime()</code> is not re-entrant.
</p>
<p>
<b>Input Parameters:</b>
</p>
<ul>
<li><code>tp</code>.
Pointer to the time to be converted.
</li>
</ul>
<p>
<b>Returned Value:</b>
If successful, the <code>asctime()</code> function will return a pointer to a statically defined string holding the converted time.
Otherwise, a NULL will be returned to indicate the error.
</p>
<h3><a name="ctime">2.6.8 ctime</a></h3>
<p>
<b>Function Prototype:</b>
</p>
<ul><pre>
#include &lt;time.h&gt;
#ifdef CONFIG_TIME_EXTENDED
FAR char *ctime(FAR const time_t *timep);
#endif
</pre></ul>
<p>
<b>Description:</b>
<code>ctime()</code> converts the time provided in seconds since the epoch to a string representation.
<code>ctime()</code> is not re-entrant.
</p>
<p>
<b>Input Parameters:</b>
</p>
<ul>
<li><code>timep</code>.
The current time represented as seconds since the epoch.
</li>
</ul>
<p>
<b>Returned Value:</b>
If successful, the <code>ctime()</code> function will return the pointer to the converted string.
Otherwise, a NULL will be returned to indicate the error.
</p>
<h3><a name="gmtimer">2.6.9 gmtime_r</a></h3>
<p>
<b>Function Prototype:</b>
</p>
<pre>
#include &lt;time.h&gt;
struct tm *gmtime_r(const time_t *clock, struct tm *result);
struct tm *gmtime_r(const time_t *timep, struct tm *result);
</pre>
<p>
<b>Description:</b>
Represents GMT date/time in a type <code>struct tm</code>.
This function is re-entrant.
</p>
<p>
<b>Input Parameters:</b>
</p>
<ul>
<li><code>clock</code>.
Represents calendar time.
This is an absolute time value representing the number of seconds elapsed since 00:00:00
on January 1, 1970, Coordinated Universal Time (UTC).
<li><code>timep</code>.
Represents GMT calendar time.
This is an absolute time value representing the number of seconds elapsed since 00:00:00 on January 1, 1970, Coordinated Universal Time (UTC).
<li><code>result</code>.
A user-provided buffer to receive the converted time structure.
</ul>
<p>
<b>Returned Value:</b>
</p>
<p>
If successful, the <code>gmtime_r()</code> function will return the pointer, <code>result</code>,
provided by the caller.
Otherwise, a NULL will be returned to indicate the error:
</p>
<H3><a name="localtimer">2.6.10 localtime_r</a></H3>
<ul><pre>
#include &lt;time.h&gt;
#ifdef CONFIG_LIBC_LOCALTIME
# define localtime_r(c,r) gmtime_r(c,r)
#else
FAR struct tm *localtime_r(FAR const time_t *timep, FAR struct tm *result);
#endif
</pre></ul>
<p>
<b>Description:</b>
Represents local date/time in a type <code>struct tm</code>.
This function is re-entrant.
</p>
<p>
<b>Input Parameters:</b>
</p>
<ul>
<li><code>To be provided</code>.</li>
<li><code>timep</code>.
Represents GMT calendar time.
This is an absolute time value representing the number of seconds elapsed since 00:00:00 on January 1, 1970, Coordinated Universal Time (UTC).
<li><code>result</code>.
A user-provided buffer to receive the converted time structure.
</ul>
<p>
<b>Returned Value:</b>
<b>Returned Value:</b>
If successful, the <code>localtime_r()</code> function will return the pointer, <code>result</code>,
provided by the caller.
Otherwise, a NULL will be returned to indicate the error:
</p>
<H3><a name="localtimer">2.6.8 localtime_r</a></H3>
<pre>
#include &lt;time.h&gt;
#define localtime_r(c,r) gmtime_r(c,r)
</pre>
<h3><a name="asctimer">2.6.11 asctime_r</a></h3>
<p>
<b>Function Prototype:</b>
</p>
<ul><pre>
#include &lt;time.h&gt;
#ifdef CONFIG_TIME_EXTENDED
FAR char *asctime_r(FAR const struct tm *tp, FAR char *buf);
#endif
</pre></ul>
<p>
<b>Description:</b>
<code>asctime_r()</code> converts the time provided in a <code>struct tm</code> to a string representation.
<code>asctime-r()</code> is re-entrant.
</p>
<p>
<b>Input Parameters:</b>
</p>
<ul>
<li><code>tp</code>.
Pointer to the time to be converted.
</li>
<li><code>buf</code>.
The user provider buffer. of size &gt;= 26 characters, to receive the converted time.
</li>
</ul>
<p>
<b>Returned Value:</b>
If successful, the <code>asctime_r()</code> function will return the pointer, <code>buf</code>, provided by the caller.
Otherwise, a NULL will be returned to indicate the error.
</p>
<H3><a name="timercreate">2.6.9 timer_create</a></H3>
<h3><a name="ctimer">2.6.12 ctime_r</a></h3>
<p>
<b>Function Prototype:</b>
</p>
<ul><pre>
#include &lt;time.h&gt;
#ifdef CONFIG_TIME_EXTENDED
#endif
</pre></ul>
<p>
<b>Description:</b>
<code>ctime_r()</code> converts the time provided in seconds since the epoch to a string representation.
<code>ctime()</code> is re-entrant.
</p>
<p>
<b>Input Parameters:</b>
</p>
<ul>
<li><code>timep</code>.
The current time represented as seconds since the epoch.
</li>
<li><code>buf</code>.
The user provider buffer. of size &gt;= 26 characters, to receive the converted time.
</li>
</ul>
<p>
<b>Returned Value:</b>
If successful, the <code>ctime_r()</code> function will return the pointer, <code>buf</code>, provided by the caller.
Otherwise, a NULL will be returned to indicate the error.
</p>
<h3><a name="timercreate">2.6.13 timer_create</a></h3>
<p>
<b>Function Prototype:</b>
</p>
@@ -4130,8 +4275,6 @@ interface of the same name.
</ul>
<p>
<b>Returned Value:</b>
</p>
<p>
If the call succeeds, <code>timer_create()</code> will return 0 (<code>OK</code>) and update the
location referenced by <code>timerid</code> to a <code>timer_t</code>, which can be passed to the
other per-thread timer calls. If an error occurs, the function will return
@@ -4155,7 +4298,7 @@ interface of the same name.
<li>Only <code>CLOCK_REALTIME</code> is supported for the <code>clockid</code> argument.</li>
</ul>
<H3><a name="timerdelete">2.6.10 timer_delete</a></H3>
<H3><a name="timerdelete">2.6.14 timer_delete</a></H3>
<p>
<b>Function Prototype:</b>
</p>
@@ -4180,8 +4323,6 @@ interface of the same name.
</ul>
<p>
<b>Returned Value:</b>
</p>
<p>
If successful, the <code>timer_delete()</code> function will return zero (<code>OK</code>).
Otherwise, the function will return a value of -1 (<code>ERROR</code>) and set
<a href="#ErrnoAccess"><code>errno</code></a> to indicate the error:
@@ -4194,7 +4335,7 @@ interface of the same name.
Comparable to the POSIX interface of the same name.
</p>
<H3><a name="timersettime">2.6.11 timer_settime</a></H3>
<H3><a name="timersettime">2.6.15 timer_settime</a></H3>
<p>
<b>Function Prototype:</b>
</p>
@@ -4258,8 +4399,6 @@ interface of the same name.
</ul>
<p>
<b>Returned Value:</b>
</p>
<p>
If the timer_gettime() succeeds, a value of 0 (<code>OK</code>) will be returned.
If an error occurs, the value -1 (<code>ERROR</code>) will be returned, and
<a href="#ErrnoAccess"><code>errno</code></a> set to indicate the error.
@@ -4277,7 +4416,7 @@ interface of the same name.
<li>The <code>ovalue</code> argument is ignored.</li>
</ul>
<H3><a name="timergettime">2.6.12 timer_gettime</a></H3>
<H3><a name="timergettime">2.6.16 timer_gettime</a></H3>
<p>
<b>Function Prototype:</b>
</p>
@@ -4309,8 +4448,6 @@ interface of the same name.
</ul>
<p>
<b>Returned Value:</b>
</p>
<p>
If successful, the <code>timer_gettime()</code> function will return zero (<code>OK</code>).
Otherwise, an non-zero error number will be returned to indicate the error:
</p>
@@ -4324,7 +4461,7 @@ interface of the same name.
Comparable to the POSIX interface of the same name.
</p>
<H3><a name="timergetoverrun">2.6.13 timer_getoverrun</a></H3>
<H3><a name="timergetoverrun">2.6.17 timer_getoverrun</a></H3>
<p>
<b>Function Prototype:</b>
</p>
@@ -4385,7 +4522,7 @@ interface of the same name.
interface of the same name.
</p>
<h3><a name="gettimeofday">2.6.14 gettimeofday</a></h3>
<h3><a name="gettimeofday">2.6.18 gettimeofday</a></h3>
<p>
<b>Function Prototype:</b>
</p>
@@ -9754,6 +9891,8 @@ notify a task when a message is available on a queue.
<li><a href="#aio">aio_return</a></li>
<li><a href="#aio">aio_suspend</a></li>
<li><a href="#aio">aio_write</a></li>
<li><a href="#asctime">asctime</a></li>
<li><a href="#asctimer">asctime_r</a></li>
<li><a href="#atexit">atexit</a>
<li><a href="#bind">bind</a></li>
<li><a href="#mmapxip">BIOC_XIPBASE</a></li>
@@ -9766,6 +9905,8 @@ notify a task when a message is available on a queue.
<li><a href="#dirdirentops">closedir</a></li>
<li><a href="#connect">connect</a></li>
<li><a href="#drvrfcntlops">creat</a></li>
<li><a href="#ctime">ctime</a></li>
<li><a href="#ctimer">ctime_r</a></li>
<li><a href="#Data_Structures">Data structures</a></li>
<li><a href="#directoryoperations">Directory operations</a></li>
<li><a href="#dirdirentops">dirent.h</a></li>
@@ -9829,10 +9970,10 @@ notify a task when a message is available on a queue.
<li><a href="#mqtimedsend">mq_timedsend</a></li>
<li><a href="#mqunlink">mq_unlink</a></li>
<li><a href="#mmap">mmap</a></li>
<li><a href="#Network">Network Interfaces</a></li>
<li><a href="#onexit">on_exit</a>
</td>
<td valign="top" width="33%">
<li><a href="#Network">Network Interfaces</a></li>
<li><a href="#onexit">on_exit</a>
<li><a href="#drvrfcntlops">open</a></li>
<li><a href="#dirdirentops">opendir</a></li>
<li><a href="#OS_Interfaces">OS Interfaces</a></li>
+14 -5
View File
@@ -194,16 +194,25 @@ int clock_gettime(clockid_t clockid, FAR struct timespec *tp);
int clock_getres(clockid_t clockid, FAR struct timespec *res);
time_t mktime(FAR struct tm *tp);
FAR struct tm *gmtime(FAR const time_t *timer);
FAR struct tm *gmtime_r(FAR const time_t *timer, FAR struct tm *result);
FAR struct tm *gmtime(FAR const time_t *timep);
FAR struct tm *gmtime_r(FAR const time_t *timep, FAR struct tm *result);
#ifdef CONFIG_LIBC_LOCALTIME
FAR struct tm *localtime(FAR const time_t *timer);
FAR struct tm *localtime_r(FAR const time_t *timer, FAR struct tm *result);
FAR struct tm *localtime(FAR const time_t *timep);
FAR struct tm *localtime_r(FAR const time_t *timep, FAR struct tm *result);
#endif
size_t strftime(FAR char *s, size_t max, FAR const char *format,
FAR const struct tm *tm);
time_t time(FAR time_t *tloc);
#ifdef CONFIG_TIME_EXTENDED
FAR char *asctime(FAR const struct tm *tp);
FAR char *asctime_r(FAR const struct tm *tp, FAR char *buf);
FAR char *ctime(FAR const time_t *timep);
FAR char *ctime_r(FAR const time_t *timep, FAR char *buf);
#endif
time_t time(FAR time_t *timep);
int timer_create(clockid_t clockid, FAR struct sigevent *evp,
FAR timer_t *timerid);
+4 -2
View File
@@ -39,11 +39,13 @@ CSRCS += lib_strftime.c lib_calendar2utc.c lib_daysbeforemonth.c
CSRCS += lib_gettimeofday.c lib_isleapyear.c lib_settimeofday.c lib_time.c
ifdef CONFIG_LIBC_LOCALTIME
CSRCS += lib_localtime.c
CSRCS += lib_localtime.c lib_asctime.c lib_asctimer.c lib_ctime.c
CSRCS += lib_ctimer.c
else
CSRCS += lib_mktime.c lib_gmtime.c lib_gmtimer.c
ifdef CONFIG_TIME_EXTENDED
CSRCS += lib_dayofweek.c
CSRCS += lib_dayofweek.c lib_asctime.c lib_asctimer.c lib_ctime.c
CSRCS += lib_ctimer.c
endif
endif
+72
View File
@@ -0,0 +1,72 @@
/****************************************************************************
* libc/time/lib_asctime.c
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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>
#ifdef CONFIG_TIME_EXTENDED
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Function: asctime
*
* Description:
* asctime and asctime_r converts the time provided in a struct tm to a
* string representation. asctime is not re-entrant.
*
* Parameters:
* tp - Pointer to the time to be converted.
*
* Return Value:
* One success a pointer to the string is returned; on failure, NULL is
* returned.
*
****************************************************************************/
FAR char *asctime(FAR const struct tm *tp)
{
static char buf[26];
return asctime_r(tp, buf);
}
#endif /* CONFIG_TIME_EXTENDED */
+96
View File
@@ -0,0 +1,96 @@
/****************************************************************************
* libc/time/lib_asctimer.c
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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 <stdio.h>
#include <time.h>
#ifdef CONFIG_TIME_EXTENDED
/****************************************************************************
* Private Data
****************************************************************************/
/* Note: These strings duplicate other definitions in other files. These
* definitions could be combined to save a little FLASH space.
*/
static const char g_wday_name[7][3] =
{
"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
};
static const char g_mon_name[12][3] =
{
"Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
};
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Function: asctime_r
*
* Description:
* asctime and asctime_r converts the time provided in a struct tm to a
* string representation. asctime_r is re-entrant.
*
* Parameters:
* tp - Pointer to the time to be converted.
* buf - A user provided buffer to receive the 26 character time string.
*
* Return Value:
* One success, the pointer to the 'buf' is returned; on failure, NULL is
* returned.
*
****************************************************************************/
FAR char *asctime_r(FAR const struct tm *tp, FAR char *buf)
{
snprintf(buf, 26, "%.3s %.3s%3d %.2d:%.2d:%.2d %d\n",
g_wday_name[tp->tm_wday], g_mon_name[tp->tm_mon],
tp->tm_mday, tp->tm_hour, tp->tm_min, tp->tm_sec,
1900 + tp->tm_year);
return buf;
}
#endif /* CONFIG_TIME_EXTENDED */
+82
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@@ -0,0 +1,82 @@
/****************************************************************************
* libc/time/lib_asctime.c
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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>
#ifdef CONFIG_TIME_EXTENDED
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Function: ctime
*
* Description:
* ctime and ctime_r converts the time provided in seconds since the
* epoch to a string representation. asctime is not re-entrant. ctime is
* not re-entrant.
*
* Parameters:
* timep - The current time represented as seconds since the epoch.
*
* Return Value:
* One success a pointer to the string is returned; on failure, NULL is
* returned.
*
****************************************************************************/
FAR char *ctime(FAR const time_t *timep)
{
#ifdef CONFIG_LIBC_LOCALTIME
/* Section 4.12.3.2 of X3.159-1989 requires that
* The ctime function converts the calendar time pointed to by timer
* to local time in the form of a string. It is equivalent to
* asctime(localtime(timer))
*/
return asctime(localtime(timep));
#else
return asctime(gmtime(timep));
#endif
}
#endif /* CONFIG_TIME_EXTENDED */
+83
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@@ -0,0 +1,83 @@
/****************************************************************************
* libc/time/lib_ctimer.c
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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>
#ifdef CONFIG_TIME_EXTENDED
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Function: ctime_r
*
* Description:
* ctime and ctime_r converts the time provided in seconds since the
* epoch to a string representation. asctime is not re-entrant. ctimer is
* re-entrant.
*
* Parameters:
* timep - The current time represented as seconds since the epoch.
* buf - A user provided buffer to receive the 26 character time string.
*
* Return Value:
* One success, the pointer to the 'buf' is returned; on failure, NULL is
* returned.
*
****************************************************************************/
FAR char *ctime_r(FAR const time_t *timep, FAR char *buf)
{
struct tm tm;
#ifdef CONFIG_LIBC_LOCALTIME
return asctime_r(localtime_r(timep, &tm), buf);
#else
return asctime_r(gmtime_r(timep, &tm), buf);
#endif
}
#endif /* CONFIG_TIME_EXTENDED */
-22
View File
@@ -2533,28 +2533,6 @@ FAR struct tm *gmtime_r(FAR const time_t * const timep, struct tm *tmp)
return gmtsub(timep, 0L, tmp);
}
#if 0 /* No asctime() */
FAR char *ctime(FAR const time_t * const timep)
{
/* Section 4.12.3.2 of X3.159-1989 requires that
* The ctime function converts the calendar time pointed to by timer
* to local time in the form of a string. It is equivalent to
* asctime(localtime(timer))
*/
return asctime(localtime(timep));
}
#endif
#if 0 /* No asctime_r */
FAR char *ctime_r(FAR const time_t * const timep, char *buf)
{
struct tm mytm;
return asctime_r(localtime_r(timep, &mytm), buf);
}
#endif
time_t mktime(struct tm * const tmp)
{
tzset();