mirror of
https://github.com/openvswitch/ovs
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9e56549c2b
Using SHORT version of the *_SAFE loops makes the code cleaner and less error prone. So, use the SHORT version and remove the extra variable when possible for hmap and all its derived types. In order to be able to use both long and short versions without changing the name of the macro for all the clients, overload the existing name and select the appropriate version depending on the number of arguments. Acked-by: Dumitru Ceara <dceara@redhat.com> Acked-by: Eelco Chaudron <echaudro@redhat.com> Signed-off-by: Adrian Moreno <amorenoz@redhat.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
90 lines
3.3 KiB
C
90 lines
3.3 KiB
C
/*
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* Copyright (c) 2009, 2010, 2011, 2012, 2016, 2017 Nicira, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SIMAP_H
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#define SIMAP_H 1
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#include "openvswitch/hmap.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* A map from strings to unsigned integers. */
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struct simap {
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struct hmap map; /* Contains "struct simap_node"s. */
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};
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struct simap_node {
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struct hmap_node node; /* In struct simap's 'map' hmap. */
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char *name;
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unsigned int data;
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};
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#define SIMAP_INITIALIZER(SIMAP) { HMAP_INITIALIZER(&(SIMAP)->map) }
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#define SIMAP_FOR_EACH(SIMAP_NODE, SIMAP) \
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HMAP_FOR_EACH_INIT (SIMAP_NODE, node, &(SIMAP)->map, \
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BUILD_ASSERT_TYPE(SIMAP_NODE, struct simap_node *), \
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BUILD_ASSERT_TYPE(SIMAP, struct simap *))
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#define SIMAP_FOR_EACH_SAFE_SHORT(SIMAP_NODE, SIMAP) \
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HMAP_FOR_EACH_SAFE_SHORT_INIT (SIMAP_NODE, node, &(SIMAP)->map, \
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BUILD_ASSERT_TYPE(SIMAP_NODE, struct simap_node *), \
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BUILD_ASSERT_TYPE(SIMAP, struct simap *))
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#define SIMAP_FOR_EACH_SAFE_LONG(SIMAP_NODE, NEXT, SIMAP) \
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HMAP_FOR_EACH_SAFE_LONG_INIT (SIMAP_NODE, NEXT, node, &(SIMAP)->map, \
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BUILD_ASSERT_TYPE(SIMAP_NODE, struct simap_node *), \
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BUILD_ASSERT_TYPE(NEXT, struct simap_node *), \
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BUILD_ASSERT_TYPE(SIMAP, struct simap *))
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#define SIMAP_FOR_EACH_SAFE(...) \
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OVERLOAD_SAFE_MACRO(SIMAP_FOR_EACH_SAFE_LONG, \
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SIMAP_FOR_EACH_SAFE_SHORT, \
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3, __VA_ARGS__)
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void simap_init(struct simap *);
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void simap_destroy(struct simap *);
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void simap_swap(struct simap *, struct simap *);
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void simap_moved(struct simap *);
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void simap_clear(struct simap *);
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bool simap_is_empty(const struct simap *);
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size_t simap_count(const struct simap *);
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bool simap_put(struct simap *, const char *, unsigned int);
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unsigned int simap_increase(struct simap *, const char *, unsigned int);
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unsigned int simap_get(const struct simap *, const char *);
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struct simap_node *simap_find(const struct simap *, const char *);
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struct simap_node *simap_find_len(const struct simap *,
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const char *, size_t len);
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bool simap_contains(const struct simap *, const char *);
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void simap_delete(struct simap *, struct simap_node *);
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bool simap_find_and_delete(struct simap *, const char *);
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const struct simap_node **simap_sort(const struct simap *);
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bool simap_equal(const struct simap *, const struct simap *);
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uint32_t simap_hash(const struct simap *);
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#ifdef __cplusplus
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}
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#endif
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#endif /* simap.h */
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