ucx: src/map.c@87eb4bdb2d0e

     1 /*

     2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

     3  *

     4  * Copyright 2023 Mike Becker, Olaf Wintermann All rights reserved.

     5  *

     6  * Redistribution and use in source and binary forms, with or without

     7  * modification, are permitted provided that the following conditions are met:

     8  *

     9  *   1. Redistributions of source code must retain the above copyright

    10  *      notice, this list of conditions and the following disclaimer.

    11  *

    12  *   2. Redistributions in binary form must reproduce the above copyright

    13  *      notice, this list of conditions and the following disclaimer in the

    14  *      documentation and/or other materials provided with the distribution.

    15  *

    16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

    17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

    19  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE

    20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

    21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

    22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

    23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

    24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

    25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

    26  * POSSIBILITY OF SUCH DAMAGE.

    27  */

    29 #include "cx/map.h"

    31 // <editor-fold desc="empty map implementation">

    33 static void cx_empty_map_noop(__attribute__((__unused__)) CxMap *map) {

    34     // this is a noop, but MUST be implemented

    35 }

    37 static void *cx_empty_map_get(

    38         __attribute__((__unused__)) CxMap const *map,

    39         __attribute__((__unused__)) CxHashKey key

    40 ) {

    41     return NULL;

    42 }

    44 static bool cx_empty_map_iter_valid(__attribute__((__unused__)) void const *iter) {

    45     return false;

    46 }

    48 static CxIterator cx_empty_map_iterator(struct cx_map_s const *map) {

    49     CxIterator iter = {0};

    50     iter.src_handle = map;

    51     iter.base.valid = cx_empty_map_iter_valid;

    52     return iter;

    53 }

    55 static CxMutIterator cx_empty_map_miterator(struct cx_map_s *map) {

    56     CxMutIterator iter = {0};

    57     iter.src_handle = map;

    58     iter.base.valid = cx_empty_map_iter_valid;

    59     return iter;

    60 }

    62 static struct cx_map_class_s cx_empty_map_class = {

    63     cx_empty_map_noop,

    64     cx_empty_map_noop,

    65     NULL,

    66     cx_empty_map_get,

    67     NULL,

    68     cx_empty_map_iterator,

    69     cx_empty_map_iterator,

    70     cx_empty_map_iterator,

    71     cx_empty_map_miterator,

    72     cx_empty_map_miterator,

    73     cx_empty_map_miterator,

    74 };

    76 CxMap cx_empty_map = {

    77         NULL,

    78         NULL,

    79         0,

    80         0,

    81         NULL,

    82         NULL,

    83         NULL,

    84         false,

    85         &cx_empty_map_class

    86 };

    88 CxMap * const cxEmptyMap = &cx_empty_map;

    90 // </editor-fold>

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