src/cx/collection.h

Tue, 20 Jun 2023 18:28:47 +0200

author
Mike Becker <universe@uap-core.de>
date
Tue, 20 Jun 2023 18:28:47 +0200
changeset 712
cff828e156a9
parent 681
502105523db7
child 759
475335643af4
permissions
-rw-r--r--

add missing docs for cx_invoke_destructor()

universe@677 1 /*
universe@677 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
universe@677 3 *
universe@677 4 * Copyright 2023 Mike Becker, Olaf Wintermann All rights reserved.
universe@677 5 *
universe@677 6 * Redistribution and use in source and binary forms, with or without
universe@677 7 * modification, are permitted provided that the following conditions are met:
universe@677 8 *
universe@677 9 * 1. Redistributions of source code must retain the above copyright
universe@677 10 * notice, this list of conditions and the following disclaimer.
universe@677 11 *
universe@677 12 * 2. Redistributions in binary form must reproduce the above copyright
universe@677 13 * notice, this list of conditions and the following disclaimer in the
universe@677 14 * documentation and/or other materials provided with the distribution.
universe@677 15 *
universe@677 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
universe@677 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
universe@677 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
universe@677 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
universe@677 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
universe@677 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
universe@677 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
universe@677 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
universe@677 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
universe@677 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
universe@677 26 * POSSIBILITY OF SUCH DAMAGE.
universe@677 27 */
universe@677 28 /**
universe@677 29 * \file collection.h
universe@677 30 * \brief Common definitions for various collection implementations.
universe@677 31 * \author Mike Becker
universe@677 32 * \author Olaf Wintermann
universe@677 33 * \version 3.0
universe@677 34 * \copyright 2-Clause BSD License
universe@677 35 */
universe@677 36
universe@677 37 #ifndef UCX_COLLECTION_H
universe@677 38 #define UCX_COLLECTION_H
universe@677 39
universe@677 40 #include "allocator.h"
universe@677 41 #include "iterator.h"
universe@677 42
universe@677 43 #ifdef __cplusplus
universe@677 44 extern "C" {
universe@677 45 #endif
universe@677 46
universe@677 47 /**
universe@677 48 * Special constant used for creating collections that are storing pointers.
universe@677 49 */
universe@677 50 #define CX_STORE_POINTERS 0
universe@677 51
universe@677 52 /**
universe@677 53 * A comparator function comparing two collection elements.
universe@677 54 */
universe@677 55 typedef int(*cx_compare_func)(
universe@677 56 void const *left,
universe@677 57 void const *right
universe@677 58 );
universe@677 59
universe@677 60 /**
universe@677 61 * Use this macro to declare common members for a collection structure.
universe@677 62 */
universe@677 63 #define CX_COLLECTION_MEMBERS \
universe@677 64 /** \
universe@677 65 * The allocator to use. \
universe@677 66 */ \
universe@677 67 CxAllocator const *allocator; \
universe@677 68 /** \
universe@677 69 * The comparator function for the elements. \
universe@677 70 */ \
universe@677 71 cx_compare_func cmpfunc; \
universe@677 72 /** \
universe@677 73 * The size of each element. \
universe@677 74 */ \
universe@677 75 size_t item_size; \
universe@677 76 /** \
universe@677 77 * The number of currently stored elements. \
universe@677 78 */ \
universe@677 79 size_t size; \
universe@677 80 /** \
universe@677 81 * An optional simple destructor for the collection's elements. \
universe@677 82 * \
universe@677 83 * @attention Read the documentation of the particular collection implementation \
universe@677 84 * whether this destructor shall only destroy the contents or also free the memory. \
universe@677 85 */ \
universe@677 86 cx_destructor_func simple_destructor; \
universe@677 87 /** \
universe@677 88 * An optional advanced destructor for the collection's elements. \
universe@677 89 * \
universe@677 90 * @attention Read the documentation of the particular collection implementation \
universe@677 91 * whether this destructor shall only destroy the contents or also free the memory. \
universe@677 92 */ \
universe@677 93 cx_destructor_func2 advanced_destructor; \
universe@677 94 /** \
universe@677 95 * The pointer to additional data that is passed to the advanced destructor. \
universe@677 96 */ \
universe@677 97 void *destructor_data; \
universe@677 98 /** \
universe@677 99 * Indicates if this instance of a collection is supposed to store pointers \
universe@677 100 * instead of copies of the actual objects. \
universe@677 101 */ \
universe@677 102 bool store_pointer;
universe@677 103
universe@677 104 /**
universe@677 105 * Invokes the simple destructor function for a specific element.
universe@677 106 *
universe@677 107 * Usually only used by collection implementations. There should be no need
universe@677 108 * to invoke this macro manually.
universe@677 109 *
universe@677 110 * @param c the collection
universe@677 111 * @param e the element
universe@677 112 */
universe@677 113 #define cx_invoke_simple_destructor(c, e) \
universe@680 114 (c)->simple_destructor((c)->store_pointer ? (*((void **) (e))) : (e))
universe@677 115
universe@677 116 /**
universe@677 117 * Invokes the advanced destructor function for a specific element.
universe@677 118 *
universe@677 119 * Usually only used by collection implementations. There should be no need
universe@677 120 * to invoke this macro manually.
universe@677 121 *
universe@677 122 * @param c the collection
universe@677 123 * @param e the element
universe@677 124 */
universe@677 125 #define cx_invoke_advanced_destructor(c, e) \
universe@677 126 (c)->advanced_destructor((c)->destructor_data, \
universe@680 127 (c)->store_pointer ? (*((void **) (e))) : (e))
universe@677 128
universe@677 129
universe@712 130 /**
universe@712 131 * Invokes all available destructor functions for a specific element.
universe@712 132 *
universe@712 133 * Usually only used by collection implementations. There should be no need
universe@712 134 * to invoke this macro manually.
universe@712 135 *
universe@712 136 * @param c the collection
universe@712 137 * @param e the element
universe@712 138 */
universe@677 139 #define cx_invoke_destructor(c, e) \
universe@677 140 if ((c)->simple_destructor) cx_invoke_simple_destructor(c,e); \
universe@677 141 if ((c)->advanced_destructor) cx_invoke_advanced_destructor(c,e)
universe@677 142
universe@677 143 #ifdef __cplusplus
universe@677 144 } // extern "C"
universe@677 145 #endif
universe@677 146
universe@677 147 #endif // UCX_COLLECTION_H

mercurial