add data object

This commit is contained in:
Love Hörnquist Åstrand
2011-11-29 23:40:14 -08:00
parent 417dff03ba
commit 206b22c9f5
4 changed files with 154 additions and 0 deletions

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@@ -18,6 +18,7 @@ dist_libheimbase_la_SOURCES = \
array.c \
baselocl.h \
bool.c \
data.c \
dict.c \
error.c \
heimbase.c \

130
base/data.c Normal file
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@@ -0,0 +1,130 @@
/*
* Copyright (c) 2011 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* 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 of the Institute 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 INSTITUTE 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 INSTITUTE 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.
*/
#include "baselocl.h"
#include <string.h>
static void
data_dealloc(void *ptr)
{
}
static int
data_cmp(void *a, void *b)
{
heim_octet_string *osa = a, *osb = b;
if (osa->length != osb->length)
return osa->length - osb->length;
return memcmp(osa->data, osb->data, osa->length);
}
static unsigned long
data_hash(void *ptr)
{
heim_octet_string *os = ptr;
const unsigned char *s = os->data;
if (os->length < 4)
return os->length;
return s[0] | (s[1] << 8) |
(s[os->length - 2] << 16) | (s[os->length - 1] << 24);
}
struct heim_type_data _heim_data_object = {
HEIM_TID_DATA,
"data-object",
NULL,
data_dealloc,
NULL,
data_cmp,
data_hash
};
/**
* Create a data object
*
* @param string the string to create, must be an utf8 string
*
* @return string object
*/
heim_data_t
heim_data_create(const void *data, size_t length)
{
heim_octet_string *os;
os = _heim_alloc_object(&_heim_data_object, sizeof(*os) + length);
if (os) {
os->data = (uint8_t *)os + sizeof(*os);
os->length = length;
memcpy(os->data, data, length);
}
return (heim_data_t)os;
}
/**
* Return the type ID of data objects
*
* @return type id of string objects
*/
heim_tid_t
heim_data_get_type_id(void)
{
return HEIM_TID_DATA;
}
/**
* Get the data value of the content.
*
* @param data the data object to get the value from
*
* @return a heim_octet_string
*/
const heim_octet_string *
heim_data_get_data(heim_data_t data)
{
return (const heim_octet_string *)data;
}
const void *
heim_data_get_ptr(heim_data_t data)
{
return ((const heim_octet_string *)data)->data;
}
size_t heim_data_get_length(heim_data_t data)
{
return ((const heim_octet_string *)data)->length;
}

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@@ -213,5 +213,27 @@ heim_error_t heim_error_append(heim_error_t, heim_error_t);
heim_object_t heim_json_create(const char *, heim_error_t *);
heim_object_t heim_json_create_with_bytes(const void *, size_t, heim_error_t *);
/*
*
*/
#ifndef __HEIM_OCTET_STRING__
#define __HEIM_OCTET_STRING__
typedef struct heim_octet_string {
size_t length;
void *data;
} heim_octet_string;
#endif
typedef struct heim_data * heim_data_t;
heim_data_t heim_data_create(const void *, size_t);
heim_tid_t heim_data_get_type_id(void);
const heim_octet_string *
heim_data_get_data(heim_data_t);
const void * heim_data_get_ptr(heim_data_t);
size_t heim_data_get_length(heim_data_t);
#endif /* HEIM_BASE_H */

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@@ -55,6 +55,7 @@ enum {
HEIM_TID_STRING = 131,
HEIM_TID_AUTORELEASE = 132,
HEIM_TID_ERROR = 133,
HEIM_TID_DATA = 134,
HEIM_TID_USER = 255
};