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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>
94 lines
3.6 KiB
C
94 lines
3.6 KiB
C
/*
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* Copyright (c) 2009, 2010, 2011, 2016 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 SHASH_H
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#define SHASH_H 1
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#include "openvswitch/hmap.h"
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#include "openvswitch/util.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct shash_node {
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struct hmap_node node;
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char *name;
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void *data;
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};
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struct shash {
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struct hmap map;
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};
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#define SHASH_INITIALIZER(SHASH) { HMAP_INITIALIZER(&(SHASH)->map) }
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#define SHASH_FOR_EACH(SHASH_NODE, SHASH) \
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HMAP_FOR_EACH_INIT (SHASH_NODE, node, &(SHASH)->map, \
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BUILD_ASSERT_TYPE(SHASH_NODE, struct shash_node *), \
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BUILD_ASSERT_TYPE(SHASH, struct shash *))
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#define SHASH_FOR_EACH_SAFE_SHORT(SHASH_NODE, SHASH) \
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HMAP_FOR_EACH_SAFE_SHORT_INIT ( \
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SHASH_NODE, node, &(SHASH)->map, \
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BUILD_ASSERT_TYPE(SHASH_NODE, struct shash_node *), \
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BUILD_ASSERT_TYPE(SHASH, struct shash *))
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#define SHASH_FOR_EACH_SAFE_LONG(SHASH_NODE, NEXT, SHASH) \
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HMAP_FOR_EACH_SAFE_LONG_INIT ( \
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SHASH_NODE, NEXT, node, &(SHASH)->map, \
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BUILD_ASSERT_TYPE(SHASH_NODE, struct shash_node *), \
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BUILD_ASSERT_TYPE(NEXT, struct shash_node *), \
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BUILD_ASSERT_TYPE(SHASH, struct shash *))
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#define SHASH_FOR_EACH_SAFE(...) \
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OVERLOAD_SAFE_MACRO(SHASH_FOR_EACH_SAFE_LONG, \
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SHASH_FOR_EACH_SAFE_SHORT, \
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3, __VA_ARGS__)
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void shash_init(struct shash *);
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void shash_destroy(struct shash *);
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void shash_destroy_free_data(struct shash *);
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void shash_swap(struct shash *, struct shash *);
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void shash_moved(struct shash *);
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void shash_clear(struct shash *);
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void shash_clear_free_data(struct shash *);
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bool shash_is_empty(const struct shash *);
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size_t shash_count(const struct shash *);
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struct shash_node *shash_add(struct shash *, const char *, const void *);
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struct shash_node *shash_add_nocopy(struct shash *, char *, const void *);
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bool shash_add_once(struct shash *, const char *, const void *);
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void shash_add_assert(struct shash *, const char *, const void *);
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void *shash_replace(struct shash *, const char *, const void *data);
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void *shash_replace_nocopy(struct shash *, char *name, const void *data);
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void shash_delete(struct shash *, struct shash_node *);
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char *shash_steal(struct shash *, struct shash_node *);
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struct shash_node *shash_find(const struct shash *, const char *);
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struct shash_node *shash_find_len(const struct shash *, const char *, size_t);
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void *shash_find_data(const struct shash *, const char *);
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void *shash_find_and_delete(struct shash *, const char *);
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void *shash_find_and_delete_assert(struct shash *, const char *);
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struct shash_node *shash_first(const struct shash *);
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const struct shash_node **shash_sort(const struct shash *);
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bool shash_equal_keys(const struct shash *, const struct shash *);
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struct shash_node *shash_random_node(struct shash *);
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#ifdef __cplusplus
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}
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#endif
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#endif /* shash.h */
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