Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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82 lines
2.8 KiB
82 lines
2.8 KiB
// Protocol Buffers - Google's data interchange format |
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// Copyright 2023 Google LLC. All rights reserved. |
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// |
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// Use of this source code is governed by a BSD-style |
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// license that can be found in the LICENSE file or at |
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// https://developers.google.com/open-source/licenses/bsd |
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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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