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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* 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 COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://www.hdfgroup.org/licenses. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Purpose: The object modification time message
*/
#include "H5Omodule.h" /* This source code file is part of the H5O module */
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5FLprivate.h" /* Free lists */
#include "H5MMprivate.h" /* Memory management */
#include "H5Opkg.h" /* Object headers */
static void *H5O__mtime_new_decode(H5F_t *f, H5O_t *open_oh, unsigned mesg_flags, unsigned *ioflags,
size_t p_size, const uint8_t *p);
static herr_t H5O__mtime_new_encode(H5F_t *f, hbool_t disable_shared, uint8_t *p, const void *_mesg);
static size_t H5O__mtime_new_size(const H5F_t *f, hbool_t disable_shared, const void *_mesg);
static void *H5O__mtime_decode(H5F_t *f, H5O_t *open_oh, unsigned mesg_flags, unsigned *ioflags,
size_t p_size, const uint8_t *p);
static herr_t H5O__mtime_encode(H5F_t *f, hbool_t disable_shared, uint8_t *p, const void *_mesg);
static void *H5O__mtime_copy(const void *_mesg, void *_dest);
static size_t H5O__mtime_size(const H5F_t *f, hbool_t disable_shared, const void *_mesg);
static herr_t H5O__mtime_free(void *_mesg);
static herr_t H5O__mtime_debug(H5F_t *f, 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 */
0, /* messages are shareable? */
H5O__mtime_decode, /*decode message */
H5O__mtime_encode, /*encode message */
H5O__mtime_copy, /*copy the native value */
H5O__mtime_size, /*raw message size */
NULL, /* reset method */
H5O__mtime_free, /* free method */
NULL, /* file delete method */
NULL, /* link method */
NULL, /*set share method */
NULL, /*can share method */
NULL, /* pre copy native value to file */
NULL, /* copy native value to file */
NULL, /* post copy native value to file */
NULL, /* get creation index */
NULL, /* set creation index */
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 */
0, /* messages are shareable? */
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 */
NULL, /* reset method */
H5O__mtime_free, /* free method */
NULL, /* file delete method */
NULL, /* link method */
NULL, /*set share method */
NULL, /*can share method */
NULL, /* pre copy native value to file */
NULL, /* copy native value to file */
NULL, /* post copy native value to file */
NULL, /* get creation index */
NULL, /* set creation index */
H5O__mtime_debug /*debug the message */
}};
/* Current version of new mtime information */
#define H5O_MTIME_VERSION 1
/* 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.
*
* This version of the modification time was used in HDF5
* 1.6.1 and later.
*
* The new modification time message format was added due to the
* performance overhead of the old format.
*
* Return: Success: Pointer to new message in native struct
* Failure: NULL
*-------------------------------------------------------------------------
*/
static void *
H5O__mtime_new_decode(H5F_t H5_ATTR_NDEBUG_UNUSED *f, H5O_t H5_ATTR_UNUSED *open_oh,
unsigned H5_ATTR_UNUSED mesg_flags, unsigned H5_ATTR_UNUSED *ioflags, size_t p_size,
const uint8_t *p)
{
const uint8_t *p_end = p + p_size - 1; /* End of input buffer */
time_t *mesg = NULL;
uint32_t tmp_time; /* Temporary copy of the time */
void *ret_value = NULL; /* Return value */
FUNC_ENTER_PACKAGE
assert(f);
assert(p);
if (H5_IS_BUFFER_OVERFLOW(p, 1, p_end))
HGOTO_ERROR(H5E_OHDR, H5E_OVERFLOW, NULL, "ran off end of input buffer while decoding");
if (*p++ != H5O_MTIME_VERSION)
HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, NULL, "bad version number for mtime message");
/* Skip reserved bytes */
if (H5_IS_BUFFER_OVERFLOW(p, 3, p_end))
HGOTO_ERROR(H5E_OHDR, H5E_OVERFLOW, NULL, "ran off end of input buffer while decoding");
p += 3;
/* Get the time_t from the file */
if (H5_IS_BUFFER_OVERFLOW(p, 4, p_end))
HGOTO_ERROR(H5E_OHDR, H5E_OVERFLOW, NULL, "ran off end of input buffer while decoding");
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.
*
* This version of the modification time was used in HDF5
* 1.6.0 and earlier.
*
* The new modification time message format was added due to the
* performance overhead of the old format.
*
* Return: Success: Pointer to new message in native struct
* Failure: NULL
*-------------------------------------------------------------------------
*/
static void *
H5O__mtime_decode(H5F_t H5_ATTR_NDEBUG_UNUSED *f, H5O_t H5_ATTR_UNUSED *open_oh,
unsigned H5_ATTR_UNUSED mesg_flags, unsigned H5_ATTR_UNUSED *ioflags, size_t p_size,
const uint8_t *p)
{
const uint8_t *p_end = p + p_size - 1; /* End of input buffer */
time_t *mesg = NULL;
time_t the_time;
struct tm tm;
void *ret_value = NULL;
FUNC_ENTER_PACKAGE
assert(f);
assert(p);
/* Buffer should have 14 message bytes and 2 reserved bytes */
if (H5_IS_BUFFER_OVERFLOW(p, 16, p_end))
HGOTO_ERROR(H5E_OHDR, H5E_OVERFLOW, NULL, "ran off end of input buffer while decoding");
for (int i = 0; i < 14; i++)
if (!isdigit(p[i]))
HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, NULL, "badly formatted modification time message");
/* Convert YYYYMMDDhhmmss UTC to a time_t. */
memset(&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 = H5_make_time(&tm)))
HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, NULL, "can't construct time info");
/* 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)
} /* end H5O__mtime_decode() */
/*-------------------------------------------------------------------------
* Function: H5O__mtime_new_encode
*
* Purpose: Encodes a new modification time message.
*
* Return: Non-negative on success/Negative on failure
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O__mtime_new_encode(H5F_t H5_ATTR_UNUSED *f, hbool_t H5_ATTR_UNUSED disable_shared, uint8_t *p,
const void *_mesg)
{
const time_t *mesg = (const time_t *)_mesg;
FUNC_ENTER_PACKAGE_NOERR
/* 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
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O__mtime_encode(H5F_t H5_ATTR_UNUSED *f, hbool_t H5_ATTR_UNUSED disable_shared, uint8_t *p,
const void *_mesg)
{
const time_t *mesg = (const time_t *)_mesg;
struct tm *tm;
FUNC_ENTER_PACKAGE_NOERR
/* check args */
assert(f);
assert(p);
assert(mesg);
/* encode */
tm = HDgmtime(mesg);
HDsprintf((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)
} /* end H5O__mtime_encode() */
/*-------------------------------------------------------------------------
* Function: H5O__mtime_copy
*
* Purpose: Copies a message from _MESG to _DEST, allocating _DEST if
* necessary.
*
* Return: Success: Ptr to _DEST
*
* Failure: NULL
*
*-------------------------------------------------------------------------
*/
static void *
H5O__mtime_copy(const void *_mesg, void *_dest)
{
const time_t *mesg = (const time_t *)_mesg;
time_t *dest = (time_t *)_dest;
void *ret_value = NULL; /* Return value */
FUNC_ENTER_PACKAGE
/* 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)
} /* end H5O__mtime_copy() */
/*-------------------------------------------------------------------------
* 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
*
*-------------------------------------------------------------------------
*/
static size_t
H5O__mtime_new_size(const H5F_t H5_ATTR_UNUSED *f, hbool_t H5_ATTR_UNUSED disable_shared,
const void H5_ATTR_UNUSED *mesg)
{
FUNC_ENTER_PACKAGE_NOERR
/* 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
*
*-------------------------------------------------------------------------
*/
static size_t
H5O__mtime_size(const H5F_t H5_ATTR_UNUSED *f, hbool_t H5_ATTR_UNUSED disable_shared,
const void H5_ATTR_UNUSED *mesg)
{
FUNC_ENTER_PACKAGE_NOERR
/* check args */
assert(f);
assert(mesg);
FUNC_LEAVE_NOAPI(16)
} /* end H5O__mtime_size() */
/*-------------------------------------------------------------------------
* Function: H5O__mtime_free
*
* Purpose: Frees the message
*
* Return: Non-negative on success/Negative on failure
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O__mtime_free(void *mesg)
{
FUNC_ENTER_PACKAGE_NOERR
assert(mesg);
mesg = H5FL_FREE(time_t, mesg);
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O__mtime_free() */
/*-------------------------------------------------------------------------
* Function: H5O__mtime_debug
*
* Purpose: Prints debugging info for the message.
*
* Return: Non-negative on success/Negative on failure
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O__mtime_debug(H5F_t H5_ATTR_UNUSED *f, 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_PACKAGE_NOERR
/* 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)
} /* end H5O__mtime_debug() */
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