diff options
Diffstat (limited to 'src/H5Omtime.c')
| -rw-r--r-- | src/H5Omtime.c | 208 |
1 files changed, 201 insertions, 7 deletions
diff --git a/src/H5Omtime.c b/src/H5Omtime.c index e31dece..ff3eb5a 100644 --- a/src/H5Omtime.c +++ b/src/H5Omtime.c @@ -20,11 +20,16 @@ #define PABLO_MASK H5O_mtime_mask +static void *H5O_mtime_new_decode(H5F_t *f, const uint8_t *p, H5O_shared_t *sh); +static herr_t H5O_mtime_new_encode(H5F_t *f, uint8_t *p, const void *_mesg); +static size_t H5O_mtime_new_size(H5F_t *f, const void *_mesg); + static void *H5O_mtime_decode(H5F_t *f, const uint8_t *p, H5O_shared_t *sh); 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); static size_t H5O_mtime_size(H5F_t *f, const void *_mesg); -static herr_t H5O_mtime_free (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, const void *_mesg, FILE *stream, int indent, int fwidth); @@ -37,8 +42,25 @@ const H5O_class_t H5O_MTIME[1] = {{ H5O_mtime_encode, /*encode message */ H5O_mtime_copy, /*copy the native value */ H5O_mtime_size, /*raw message size */ - NULL, /*free internal memory */ - H5O_mtime_free, /* free method */ + H5O_mtime_reset, /* reset method */ + H5O_mtime_free, /* free method */ + NULL, /*get share method */ + NULL, /*set share method */ + H5O_mtime_debug, /*debug the message */ +}}; + +/* This message derives from H5O */ +/* (Only encode, decode & size routines are different from old mtime routines) */ +const H5O_class_t H5O_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, /*get share method */ NULL, /*set share method */ H5O_mtime_debug, /*debug the message */ @@ -48,11 +70,74 @@ const H5O_class_t H5O_MTIME[1] = {{ static int interface_initialize_g = 0; #define INTERFACE_INIT NULL +/* 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, const uint8_t *p, + H5O_shared_t UNUSED *sh) +{ + time_t *mesg, the_time; + int version; /* Version of mtime information */ + void *ret_value; /* Return value */ + + FUNC_ENTER_NOAPI(H5O_mtime_new_decode, NULL); + + /* check args */ + assert(f); + assert(p); + assert (!sh); + + /* decode */ + version = *p++; + if(version!=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, the_time); + + /* 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(ret_value); +} /* end H5O_mtime_new_decode() */ + + +/*------------------------------------------------------------------------- * Function: H5O_mtime_decode * * Purpose: Decode a modification time message and return a pointer to a @@ -77,7 +162,6 @@ H5O_mtime_decode(H5F_t UNUSED *f, const uint8_t *p, time_t *mesg, the_time; int i; struct tm tm; - static int ncalls=0; void *ret_value; /* Return value */ FUNC_ENTER_NOAPI(H5O_mtime_decode, NULL); @@ -88,7 +172,10 @@ H5O_mtime_decode(H5F_t UNUSED *f, const uint8_t *p, assert (!sh); /* Initialize time zone information */ - if (0==ncalls++) HDtzset(); + if (!ntzset) { + HDtzset(); + ntzset=1; + } /* end if */ /* decode */ for (i=0; i<14; i++) { @@ -166,7 +253,7 @@ H5O_mtime_decode(H5F_t UNUSED *f, const uint8_t *p, #endif /* The return value */ - if (NULL==(mesg = H5FL_ALLOC(time_t,1))) + if (NULL==(mesg = H5FL_MALLOC(time_t))) HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed"); *mesg = the_time; @@ -179,6 +266,50 @@ done: /*------------------------------------------------------------------------- + * 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; + herr_t ret_value=SUCCEED; /* Return value */ + + FUNC_ENTER_NOAPI(H5O_mtime_new_encode, FAIL); + + /* 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); + +done: + FUNC_LEAVE(ret_value); +} /* end H5O_mtime_new_encode() */ + + +/*------------------------------------------------------------------------- * Function: H5O_mtime_encode * * Purpose: Encodes a modification time message. @@ -247,7 +378,7 @@ H5O_mtime_copy(const void *_mesg, void *_dest) /* check args */ assert(mesg); - if (!dest && NULL==(dest = H5FL_ALLOC(time_t,0))) + if (!dest && NULL==(dest = H5FL_MALLOC(time_t))) HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed"); /* copy */ @@ -262,6 +393,42 @@ done: /*------------------------------------------------------------------------- + * 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(H5F_t * UNUSED f, const void * UNUSED mesg) +{ + size_t ret_value=8; /* Return value */ + + FUNC_ENTER_NOAPI(H5O_mtime_new_size, 0); + + /* check args */ + assert(f); + assert(mesg); + +done: + FUNC_LEAVE(ret_value); +} /* end H5O_mtime_new_size() */ + + +/*------------------------------------------------------------------------- * Function: H5O_mtime_size * * Purpose: Returns the size of the raw message in bytes not @@ -298,6 +465,33 @@ done: /*------------------------------------------------------------------------- + * 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) +{ + herr_t ret_value=SUCCEED; /* Return value */ + + FUNC_ENTER_NOAPI(H5O_mtime_reset, FAIL); + +done: + FUNC_LEAVE(ret_value); +} + + +/*------------------------------------------------------------------------- * Function: H5O_mtime_free * * Purpose: Free's the message |