1/*
2 * Copyright (c) 2007,2009-2011,2013-2014 Apple Inc. All Rights Reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23
24/*!
25    @header SecInternal
26    SecInternal defines common internal constants macros and SPI functions.
27*/
28
29#ifndef _SECURITY_SECINTERNALP_H_
30#define _SECURITY_SECINTERNALP_H_
31
32#include <assert.h>
33
34#if defined(__cplusplus)
35extern "C" {
36#endif
37
38#define CFRetainSafe(CF) { CFTypeRef _cf = (CF); if (_cf) CFRetain(_cf); }
39#define CFReleaseSafe(CF) { CFTypeRef _cf = (CF); if (_cf) CFRelease(_cf); }
40#define CFReleaseNull(CF) { CFTypeRef _cf = (CF); \
41	if (_cf) { (CF) = NULL; CFRelease(_cf); } }
42
43#define DICT_DECLARE(MAXVALUES) \
44	CFIndex numValues = 0, maxValues = (MAXVALUES); \
45	const void *keys[maxValues]; \
46	const void *values[maxValues];
47
48#define DICT_ADDPAIR(KEY,VALUE) do { \
49	if (numValues < maxValues) { \
50		keys[numValues] = (KEY); \
51		values[numValues] = (VALUE); \
52		numValues++; \
53	} else \
54		assert(false); \
55} while(0)
56
57#define DICT_CREATE(ALLOCATOR) CFDictionaryCreate((ALLOCATOR), keys, values, \
58	numValues, NULL, &kCFTypeDictionaryValueCallBacks)
59
60/* Non valid CFTimeInterval or CFAbsoluteTime. */
61#define NULL_TIME	0.0
62
63#if defined(__cplusplus)
64}
65#endif
66
67#endif /* !_SECURITY_SECINTERNALP_H_ */
68