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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* Programmer: Robb Matzke <matzke@llnl.gov>
* Friday, July 24, 1998
*
* Purpose: The object modification time message.
*/
#define H5O_PACKAGE /*suppress error about including H5Opkg */
#include "H5private.h"
#include "H5Eprivate.h"
#include "H5FLprivate.h" /*Free Lists */
#include "H5MMprivate.h"
#include "H5Opkg.h" /* Object header functions */
#if defined (WIN32) && !defined (__MWERKS__)
#include <sys/types.h>
#include <sys/timeb.h>
#endif
static void *H5O_mtime_new_decode(H5F_t *f, hid_t dxpl_id, const uint8_t *p);
static herr_t H5O_mtime_new_encode(H5F_t *f, uint8_t *p, const void *_mesg);
static size_t H5O_mtime_new_size(const H5F_t *f, const void *_mesg);
static void *H5O_mtime_decode(H5F_t *f, hid_t dxpl_id, const uint8_t *p);
static herr_t H5O_mtime_encode(H5F_t *f, uint8_t *p, const void *_mesg);
static void *H5O_mtime_copy(const void *_mesg, void *_dest, unsigned update_flags);
static size_t H5O_mtime_size(const H5F_t *f, const void *_mesg);
static herr_t H5O_mtime_reset(void *_mesg);
static herr_t H5O_mtime_free(void *_mesg);
static herr_t H5O_mtime_debug(H5F_t *f, hid_t dxpl_id, const void *_mesg, FILE *stream,
int indent, int fwidth);
/* This message derives from H5O message class */
const H5O_msg_class_t H5O_MSG_MTIME[1] = {{
H5O_MTIME_ID, /*message id number */
"mtime", /*message name for debugging */
sizeof(time_t), /*native message size */
H5O_mtime_decode, /*decode message */
H5O_mtime_encode, /*encode message */
H5O_mtime_copy, /*copy the native value */
H5O_mtime_size, /*raw message size */
H5O_mtime_reset, /* reset method */
H5O_mtime_free, /* free method */
NULL, /* file delete method */
NULL, /* link method */
NULL, /*get share method */
NULL, /*set share method */
H5O_mtime_debug /*debug the message */
}};
/* This message derives from H5O message class */
/* (Only encode, decode & size routines are different from old mtime routines) */
const H5O_msg_class_t H5O_MSG_MTIME_NEW[1] = {{
H5O_MTIME_NEW_ID, /*message id number */
"mtime_new", /*message name for debugging */
sizeof(time_t), /*native message size */
H5O_mtime_new_decode, /*decode message */
H5O_mtime_new_encode, /*encode message */
H5O_mtime_copy, /*copy the native value */
H5O_mtime_new_size, /*raw message size */
H5O_mtime_reset, /* reset method */
H5O_mtime_free, /* free method */
NULL, /* file delete method */
NULL, /* link method */
NULL, /*get share method */
NULL, /*set share method */
H5O_mtime_debug /*debug the message */
}};
/* Current version of new mtime information */
#define H5O_MTIME_VERSION 1
/* Track whether tzset routine was called */
static int ntzset=0;
/* Declare a free list to manage the time_t struct */
H5FL_DEFINE(time_t);
/*-------------------------------------------------------------------------
* Function: H5O_mtime_new_decode
*
* Purpose: Decode a new modification time message and return a pointer to a
* new time_t value.
*
* Return: Success: Ptr to new message in native struct.
*
* Failure: NULL
*
* Programmer: Quincey Koziol
* koziol@ncsa.uiuc.edu
* Jan 3 2002
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static void *
H5O_mtime_new_decode(H5F_t UNUSED *f, hid_t UNUSED dxpl_id, const uint8_t *p)
{
time_t *mesg;
uint32_t tmp_time; /* Temporary copy of the time */
void *ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5O_mtime_new_decode);
/* check args */
assert(f);
assert(p);
/* decode */
if(*p++ != H5O_MTIME_VERSION)
HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, NULL, "bad version number for mtime message");
/* Skip reserved bytes */
p+=3;
/* Get the time_t from the file */
UINT32DECODE(p, tmp_time);
/* The return value */
if (NULL==(mesg = H5FL_MALLOC(time_t)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed");
*mesg = (time_t)tmp_time;
/* Set return value */
ret_value=mesg;
done:
FUNC_LEAVE_NOAPI(ret_value);
} /* end H5O_mtime_new_decode() */
/*-------------------------------------------------------------------------
* Function: H5O_mtime_decode
*
* Purpose: Decode a modification time message and return a pointer to a
* new time_t value.
*
* Return: Success: Ptr to new message in native struct.
*
* Failure: NULL
*
* Programmer: Robb Matzke
* matzke@llnl.gov
* Jul 24 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static void *
H5O_mtime_decode(H5F_t UNUSED *f, hid_t UNUSED dxpl_id, const uint8_t *p)
{
time_t *mesg, the_time;
int i;
struct tm tm;
void *ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5O_mtime_decode);
/* check args */
assert(f);
assert(p);
/* Initialize time zone information */
if (!ntzset) {
HDtzset();
ntzset=1;
} /* end if */
/* decode */
for (i=0; i<14; i++) {
if (!HDisdigit(p[i]))
HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, NULL, "badly formatted modification time message");
}
/*
* Convert YYYYMMDDhhmmss UTC to a time_t. This is a little problematic
* because mktime() operates on local times. We convert to local time
* and then figure out the adjustment based on the local time zone and
* daylight savings setting.
*/
HDmemset(&tm, 0, sizeof tm);
tm.tm_year = (p[0]-'0')*1000 + (p[1]-'0')*100 +
(p[2]-'0')*10 + (p[3]-'0') - 1900;
tm.tm_mon = (p[4]-'0')*10 + (p[5]-'0') - 1;
tm.tm_mday = (p[6]-'0')*10 + (p[7]-'0');
tm.tm_hour = (p[8]-'0')*10 + (p[9]-'0');
tm.tm_min = (p[10]-'0')*10 + (p[11]-'0');
tm.tm_sec = (p[12]-'0')*10 + (p[13]-'0');
tm.tm_isdst = -1; /*figure it out*/
if ((time_t)-1==(the_time=HDmktime(&tm)))
HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, NULL, "badly formatted modification time message");
#if defined(H5_HAVE_TM_GMTOFF)
/* FreeBSD, OSF 4.0 */
the_time += tm.tm_gmtoff;
#elif defined(H5_HAVE___TM_GMTOFF)
/* Linux libc-4 */
the_time += tm.__tm_gmtoff;
#elif defined(H5_HAVE_TIMEZONE)
/* Linux libc-5 */
the_time -= timezone - (tm.tm_isdst?3600:0);
#elif defined(H5_HAVE_BSDGETTIMEOFDAY) && defined(H5_HAVE_STRUCT_TIMEZONE)
/* Irix5.3 */
{
struct timezone tz;
if (HDBSDgettimeofday(NULL, &tz)<0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, NULL, "unable to obtain local timezone information");
the_time -= tz.tz_minuteswest * 60 - (tm.tm_isdst ? 3600 : 0);
}
#elif defined(H5_HAVE_GETTIMEOFDAY) && defined(H5_HAVE_STRUCT_TIMEZONE) && defined(H5_GETTIMEOFDAY_GIVES_TZ)
{
struct timezone tz;
struct timeval tv; /* Used as a placebo; some systems don't like NULL */
if (HDgettimeofday(&tv, &tz) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, NULL, "unable to obtain local timezone information");
the_time -= tz.tz_minuteswest * 60 - (tm.tm_isdst ? 3600 : 0);
}
#elif defined (WIN32)
#if !defined (__MWERKS__) /* MSVC */
{
struct timeb timebuffer;
long tz;
ftime(&timebuffer);
tz = timebuffer.timezone;
/* daylight is not handled properly. Currently we just hard-code
the problem. */
the_time -= tz * 60 - 3600;
}
#else /*__MWERKS__*/
;
#endif /*__MWERKS__*/
#else /* WIN32 */
/*
* The catch-all. If we can't convert a character string universal
* coordinated time to a time_t value reliably then we can't decode the
* modification time message. This really isn't as bad as it sounds -- the
* only way a user can get the modification time is from H5Gget_objinfo()
* and H5G_get_objinfo() can gracefully recover.
*/
/* Irix64 */
HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, NULL, "unable to obtain local timezone information");
#endif
/* The return value */
if (NULL==(mesg = H5FL_MALLOC(time_t)))
HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed");
*mesg = the_time;
/* Set return value */
ret_value=mesg;
done:
FUNC_LEAVE_NOAPI(ret_value);
}
/*-------------------------------------------------------------------------
* Function: H5O_mtime_new_encode
*
* Purpose: Encodes a new modification time message.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Quincey Koziol
* koziol@ncsa.uiuc.edu
* Jan 3 2002
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O_mtime_new_encode(H5F_t UNUSED *f, uint8_t *p, const void *_mesg)
{
const time_t *mesg = (const time_t *) _mesg;
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_mtime_new_encode);
/* check args */
assert(f);
assert(p);
assert(mesg);
/* Version */
*p++ = H5O_MTIME_VERSION;
/* Reserved bytes */
*p++ = 0;
*p++ = 0;
*p++ = 0;
/* Encode time */
UINT32ENCODE(p, *mesg);
FUNC_LEAVE_NOAPI(SUCCEED);
} /* end H5O_mtime_new_encode() */
/*-------------------------------------------------------------------------
* Function: H5O_mtime_encode
*
* Purpose: Encodes a modification time message.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* matzke@llnl.gov
* Jul 24 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O_mtime_encode(H5F_t UNUSED *f, uint8_t *p, const void *_mesg)
{
const time_t *mesg = (const time_t *) _mesg;
struct tm *tm;
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_mtime_encode);
/* check args */
assert(f);
assert(p);
assert(mesg);
/* encode */
tm = HDgmtime(mesg);
sprintf((char*)p, "%04d%02d%02d%02d%02d%02d",
1900+tm->tm_year, 1+tm->tm_mon, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
FUNC_LEAVE_NOAPI(SUCCEED);
}
/*-------------------------------------------------------------------------
* Function: H5O_mtime_copy
*
* Purpose: Copies a message from _MESG to _DEST, allocating _DEST if
* necessary.
*
* Return: Success: Ptr to _DEST
*
* Failure: NULL
*
* Programmer: Robb Matzke
* matzke@llnl.gov
* Jul 24 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static void *
H5O_mtime_copy(const void *_mesg, void *_dest, unsigned UNUSED update_flags)
{
const time_t *mesg = (const time_t *) _mesg;
time_t *dest = (time_t *) _dest;
void *ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5O_mtime_copy);
/* check args */
assert(mesg);
if (!dest && NULL==(dest = H5FL_MALLOC(time_t)))
HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed");
/* copy */
*dest = *mesg;
/* Set return value */
ret_value=dest;
done:
FUNC_LEAVE_NOAPI(ret_value);
}
/*-------------------------------------------------------------------------
* Function: H5O_mtime_new_size
*
* Purpose: Returns the size of the raw message in bytes not
* counting the message type or size fields, but only the data
* fields. This function doesn't take into account
* alignment.
*
* Return: Success: Message data size in bytes w/o alignment.
*
* Failure: 0
*
* Programmer: Quincey Koziol
* koziol@ncsa.uiuc.edu
* Jan 3 2002
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static size_t
H5O_mtime_new_size(const H5F_t UNUSED * f, const void UNUSED * mesg)
{
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_mtime_new_size);
/* check args */
assert(f);
assert(mesg);
FUNC_LEAVE_NOAPI(8);
} /* end H5O_mtime_new_size() */
/*-------------------------------------------------------------------------
* Function: H5O_mtime_size
*
* Purpose: Returns the size of the raw message in bytes not
* counting the message type or size fields, but only the data
* fields. This function doesn't take into account
* alignment.
*
* Return: Success: Message data size in bytes w/o alignment.
*
* Failure: 0
*
* Programmer: Robb Matzke
* matzke@llnl.gov
* Jul 14 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static size_t
H5O_mtime_size(const H5F_t UNUSED * f, const void UNUSED * mesg)
{
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_mtime_size);
/* check args */
assert(f);
assert(mesg);
FUNC_LEAVE_NOAPI(16);
}
/*-------------------------------------------------------------------------
* Function: H5O_mtime_reset
*
* Purpose: Frees resources within a modification time message, but doesn't free
* the message itself.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Quincey Koziol
* Mondey, December 23, 2002
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O_mtime_reset(void UNUSED *_mesg)
{
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_mtime_reset);
FUNC_LEAVE_NOAPI(SUCCEED);
}
/*-------------------------------------------------------------------------
* Function: H5O_mtime_free
*
* Purpose: Free's the message
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Quincey Koziol
* Thursday, March 30, 2000
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O_mtime_free (void *mesg)
{
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_mtime_free);
assert (mesg);
H5FL_FREE(time_t,mesg);
FUNC_LEAVE_NOAPI(SUCCEED);
}
/*-------------------------------------------------------------------------
* Function: H5O_mtime_debug
*
* Purpose: Prints debugging info for the message.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* matzke@llnl.gov
* Jul 24 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O_mtime_debug(H5F_t UNUSED *f, hid_t UNUSED dxpl_id, const void *_mesg, FILE *stream,
int indent, int fwidth)
{
const time_t *mesg = (const time_t *)_mesg;
struct tm *tm;
char buf[128];
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_mtime_debug);
/* check args */
assert(f);
assert(mesg);
assert(stream);
assert(indent >= 0);
assert(fwidth >= 0);
/* debug */
tm = HDlocaltime(mesg);
HDstrftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S %Z", tm);
fprintf(stream, "%*s%-*s %s\n", indent, "", fwidth,
"Time:", buf);
FUNC_LEAVE_NOAPI(SUCCEED);
}
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