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configs/sim/src: Add logic to test localtime and TZ database. See apps/system/README.txt for info

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This commit is contained in:
Gregory Nutt 2015-04-15 11:00:40 -06:00
parent 4ad24f8903
commit 10fc3ed1ac
2 changed files with 54 additions and 6 deletions
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15
nshlib/nsh_timcmds.c
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@ -125,11 +125,22 @@ static inline int date_showtime(FAR struct nsh_vtbl_s *vtbl, FAR const char *nam
/* Break the current time up into the format needed by strftime */
(void)gmtime_r((FAR const time_t*)&ts.tv_sec, &tm);
ret = gmtime_r((FAR const time_t*)&ts.tv_sec, &tm);
if (ret < 0)
{
nsh_output(vtbl, g_fmtcmdfailed, name, "gmtime_r", NSH_ERRNO);
return ERROR;
}
/* Show the current time in the requested format */
(void)strftime(timbuf, MAX_TIME_STRING, format, &tm);
ret = strftime(timbuf, MAX_TIME_STRING, format, &tm);
if (ret < 0)
{
nsh_output(vtbl, g_fmtcmdfailed, name, "strftime", NSH_ERRNO);
return ERROR;
}
nsh_output(vtbl, "%s\n", timbuf);
return OK;
}

45
system/zoneinfo/README.txt
View File

@ -1,8 +1,11 @@
apps/system/zoninfo/README.txt
Author: Gregory Nutt <gnutt@nuttx.org>
Contents
=======
This directory contains logic to create a version of the TZ/Olson database.
This base is required if localtime() support is selected via
This database is required if localtime() support is selected via
CONFIG_LIBC_LOCALTIME. This logic in this directory does the following:
- It downloads the current TZ database from the IANA website
@ -11,6 +14,9 @@ CONFIG_LIBC_LOCALTIME. This logic in this directory does the following:
- It will then, optionally, build a ROMFS filesystem image containing
the data base.
Creating and Mounting a ROMFS TZ Database
=========================================
The ROMFS filesystem image can that be mounted during the boot-up sequence
so that it is available for the localtime logic. There are two steps to
doing this:
@ -27,12 +33,43 @@ doing this:
- The second step is to mount the file system. This step can be
performed either in your board configuration logic or by your
application using the mount() interface described in
uttx/include/sys/mount.h.
nuttx/include/sys/mount.h.
This steps, however, must be done very early in initialization,
These steps, however, must be done very early in initialization,
before there is any need for time-related services.
Both of these steps are shown together in the following code sample:
Both of these steps are shown together in the following code sample at the
end of this README file.
Example Configuration
=====================
I have tested this using the sim/nsh configuration. Here are the
modifications to the configuration that I used for testing:
CONFIG_BOARD_INITIALIZE=y
CONFIG_LIBC_LOCALTIME=y
CONFIG_LIBC_TZDIR="/share/zoneinfo"
CONFIG_LIBC_TZ_MAX_TIMES=370
CONFIG_LIBC_TZ_MAX_TYPES=20
CONFIG_SYSTEM_ZONEINFO=y
CONFIG_SYSTEM_ZONEINFO_ROMFS=y
Here is a sample run. I have not seen any errors but neither am I
certain that everything is working properly:
NuttShell (NSH)
nsh> date
Jul 01 00:00:02 2008
nsh> set TZ US/Mountain
nsh> date -s "Apr 11 11:53:00 2015"
nsh> date
Apr 11 17:53:00 2015
Sample Code to Mount the ROMFS Filesystem
=========================================
/****************************************************************************
* Included Files