Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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102 lines
4.1 KiB
102 lines
4.1 KiB
/* |
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* Copyright (c) 2009-2021, Google LLC |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* * Neither the name of Google LLC nor the |
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* names of its contributors may be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL Google LLC BE LIABLE FOR ANY DIRECT, |
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#ifndef UPB_HASH_INT_TABLE_H_ |
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#define UPB_HASH_INT_TABLE_H_ |
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#include "upb/hash/common.h" |
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// Must be last. |
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#include "upb/port/def.inc" |
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typedef struct { |
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upb_table t; // For entries that don't fit in the array part. |
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const upb_tabval* array; // Array part of the table. See const note above. |
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size_t array_size; // Array part size. |
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size_t array_count; // Array part number of elements. |
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} upb_inttable; |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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// Initialize a table. If memory allocation failed, false is returned and |
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// the table is uninitialized. |
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bool upb_inttable_init(upb_inttable* table, upb_Arena* a); |
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// Returns the number of values in the table. |
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size_t upb_inttable_count(const upb_inttable* t); |
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// Inserts the given key into the hashtable with the given value. |
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// The key must not already exist in the hash table. |
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// The value must not be UINTPTR_MAX. |
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// |
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// If a table resize was required but memory allocation failed, false is |
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// returned and the table is unchanged. |
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bool upb_inttable_insert(upb_inttable* t, uintptr_t key, upb_value val, |
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upb_Arena* a); |
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// Looks up key in this table, returning "true" if the key was found. |
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// If v is non-NULL, copies the value for this key into *v. |
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bool upb_inttable_lookup(const upb_inttable* t, uintptr_t key, upb_value* v); |
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// Removes an item from the table. Returns true if the remove was successful, |
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// and stores the removed item in *val if non-NULL. |
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bool upb_inttable_remove(upb_inttable* t, uintptr_t key, upb_value* val); |
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// Updates an existing entry in an inttable. |
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// If the entry does not exist, returns false and does nothing. |
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// Unlike insert/remove, this does not invalidate iterators. |
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bool upb_inttable_replace(upb_inttable* t, uintptr_t key, upb_value val); |
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// Optimizes the table for the current set of entries, for both memory use and |
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// lookup time. Client should call this after all entries have been inserted; |
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// inserting more entries is legal, but will likely require a table resize. |
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void upb_inttable_compact(upb_inttable* t, upb_Arena* a); |
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// Iteration over inttable: |
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// |
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// intptr_t iter = UPB_INTTABLE_BEGIN; |
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// uintptr_t key; |
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// upb_value val; |
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// while (upb_inttable_next(t, &key, &val, &iter)) { |
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// // ... |
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// } |
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#define UPB_INTTABLE_BEGIN -1 |
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bool upb_inttable_next(const upb_inttable* t, uintptr_t* key, upb_value* val, |
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intptr_t* iter); |
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void upb_inttable_removeiter(upb_inttable* t, intptr_t* iter); |
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#ifdef __cplusplus |
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} /* extern "C" */ |
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#endif |
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#include "upb/port/undef.inc" |
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#endif /* UPB_HASH_INT_TABLE_H_ */
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