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authornavewindre <nw@moneybot.cc>2023-11-13 14:28:08 +0100
committernavewindre <nw@moneybot.cc>2023-11-13 14:28:08 +0100
commitda518fdc0f32839730ccdee8098b59c6f842d93f (patch)
treed6f856a6148c0b4d5819f88f068b7287b8044513 /sourcemod/scripting/include/adt_trie.inc
parentbc678b10830cdaef64bcc592ca2524ebe0fcdc45 (diff)
ya
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+/**
+ * vim: set ts=4 sw=4 tw=99 noet :
+ * =============================================================================
+ * SourceMod (C)2004-2014 AlliedModders LLC. All rights reserved.
+ * =============================================================================
+ *
+ * This file is part of the SourceMod/SourcePawn SDK.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation. You must obey the GNU General Public License in
+ * all respects for all other code used. Additionally, AlliedModders LLC grants
+ * this exception to all derivative works. AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
+#if defined _adt_trie_included
+ #endinput
+#endif
+#define _adt_trie_included
+
+/* Object-oriented wrapper for maps. */
+methodmap StringMap < Handle
+{
+ // Creates a hash map. A hash map is a container that can map strings (called
+ // "keys") to arbitrary values (cells, arrays, or strings). Keys in a hash map
+ // are unique. That is, there is at most one entry in the map for a given key.
+ //
+ // Insertion, deletion, and lookup in a hash map are all considered to be fast
+ // operations, amortized to O(1), or constant time.
+ //
+ // The word "Trie" in this API is historical. As of SourceMod 1.6, tries have
+ // been internally replaced with hash tables, which have O(1) insertion time
+ // instead of O(n).
+ //
+ // The StringMap must be freed via delete or CloseHandle().
+ public native StringMap();
+
+ // Clones a string map, returning a new handle with the same size and data.
+ // This should NOT be confused with CloneHandle. This is a completely new
+ // handle with the same data but no relation to the original. It should be
+ // closed when no longer needed with delete or CloseHandle().
+ //
+ // @return New handle to the cloned string map
+ public native StringMap Clone();
+
+ // Sets a value in a hash map, either inserting a new entry or replacing an old one.
+ //
+ // @param key Key string.
+ // @param value Value to store at this key.
+ // @param replace If false, operation will fail if the key is already set.
+ // @return True on success, false on failure.
+ public native bool SetValue(const char[] key, any value, bool replace=true);
+
+ // Sets an array value in a Map, either inserting a new entry or replacing an old one.
+ //
+ // @param key Key string.
+ // @param array Array to store.
+ // @param num_items Number of items in the array.
+ // @param replace If false, operation will fail if the key is already set.
+ // @return True on success, false on failure.
+ public native bool SetArray(const char[] key, const any[] array, int num_items, bool replace=true);
+
+ // Sets a string value in a Map, either inserting a new entry or replacing an old one.
+ //
+ // @param key Key string.
+ // @param value String to store.
+ // @param replace If false, operation will fail if the key is already set.
+ // @return True on success, false on failure.
+ public native bool SetString(const char[] key, const char[] value, bool replace=true);
+
+ // Retrieves a value in a Map.
+ //
+ // @param key Key string.
+ // @param value Variable to store value.
+ // @return True on success. False if the key is not set, or the key is set
+ // as an array or string (not a value).
+ public native bool GetValue(const char[] key, any &value);
+
+ // Retrieves an array in a Map.
+ //
+ // @param key Key string.
+ // @param array Buffer to store array.
+ // @param max_size Maximum size of array buffer.
+ // @param size Optional parameter to store the number of elements written to the buffer.
+ // @return True on success. False if the key is not set, or the key is set
+ // as a value or string (not an array).
+ public native bool GetArray(const char[] key, any[] array, int max_size, int &size=0);
+
+ // Retrieves a string in a Map.
+ //
+ // @param key Key string.
+ // @param value Buffer to store value.
+ // @param max_size Maximum size of string buffer.
+ // @param size Optional parameter to store the number of bytes written to the buffer.
+ // @return True on success. False if the key is not set, or the key is set
+ // as a value or array (not a string).
+ public native bool GetString(const char[] key, char[] value, int max_size, int &size=0);
+
+ // Checks whether a key is present in a Map.
+ //
+ // @param key Key string.
+ // @return True if the key has been found, else false.
+ public native bool ContainsKey(const char[] key);
+
+ // Removes a key entry from a Map.
+ //
+ // @param key Key string.
+ // @return True on success, false if the value was never set.
+ public native bool Remove(const char[] key);
+
+ // Clears all entries from a Map.
+ public native void Clear();
+
+ // Create a snapshot of the map's keys. See StringMapSnapshot.
+ public native StringMapSnapshot Snapshot();
+
+ // Retrieves the number of elements in a map.
+ property int Size {
+ public native get();
+ }
+};
+
+/**
+ * A StringMapSnapshot is created via StringMap.Snapshot(). It captures the
+ * keys on a map so they can be read. Snapshots must be freed with delete or
+ * CloseHandle().
+ */
+methodmap StringMapSnapshot < Handle
+{
+ // Returns the number of keys in the map snapshot.
+ property int Length {
+ public native get();
+ }
+
+ // Returns the buffer size required to store a given key. That is, it
+ // returns the length of the key plus one.
+ //
+ // @param index Key index (starting from 0).
+ // @return Buffer size required to store the key string.
+ // @error Index out of range.
+ public native int KeyBufferSize(int index);
+
+ // Retrieves the key string of a given key in a map snapshot.
+ //
+ // @param index Key index (starting from 0).
+ // @param buffer String buffer.
+ // @param maxlength Maximum buffer length.
+ // @return Number of bytes written to the buffer.
+ // @error Index out of range.
+ public native int GetKey(int index, char[] buffer, int maxlength);
+};
+
+/**
+ * Creates a hash map. A hash map is a container that can map strings (called
+ * "keys") to arbitrary values (cells, arrays, or strings). Keys in a hash map
+ * are unique. That is, there is at most one entry in the map for a given key.
+ *
+ * Insertion, deletion, and lookup in a hash map are all considered to be fast
+ * operations, amortized to O(1), or constant time.
+ *
+ * The word "Trie" in this API is historical. As of SourceMod 1.6, tries have
+ * been internally replaced with hash tables, which have O(1) insertion time
+ * instead of O(n).
+ *
+ * @return New Map Handle, which must be freed via CloseHandle().
+ */
+native StringMap CreateTrie();
+
+/**
+ * Sets a value in a hash map, either inserting a new entry or replacing an old one.
+ *
+ * @param map Map Handle.
+ * @param key Key string.
+ * @param value Value to store at this key.
+ * @param replace If false, operation will fail if the key is already set.
+ * @return True on success, false on failure.
+ * @error Invalid Handle.
+ */
+native bool SetTrieValue(Handle map, const char[] key, any value, bool replace=true);
+
+/**
+ * Sets an array value in a Map, either inserting a new entry or replacing an old one.
+ *
+ * @param map Map Handle.
+ * @param key Key string.
+ * @param array Array to store.
+ * @param num_items Number of items in the array.
+ * @param replace If false, operation will fail if the key is already set.
+ * @return True on success, false on failure.
+ * @error Invalid Handle.
+ */
+native bool SetTrieArray(Handle map, const char[] key, const any[] array, int num_items, bool replace=true);
+
+/**
+ * Sets a string value in a Map, either inserting a new entry or replacing an old one.
+ *
+ * @param map Map Handle.
+ * @param key Key string.
+ * @param value String to store.
+ * @param replace If false, operation will fail if the key is already set.
+ * @return True on success, false on failure.
+ * @error Invalid Handle.
+ */
+native bool SetTrieString(Handle map, const char[] key, const char[] value, bool replace=true);
+
+/**
+ * Retrieves a value in a Map.
+ *
+ * @param map Map Handle.
+ * @param key Key string.
+ * @param value Variable to store value.
+ * @return True on success. False if the key is not set, or the key is set
+ * as an array or string (not a value).
+ * @error Invalid Handle.
+ */
+native bool GetTrieValue(Handle map, const char[] key, any &value);
+
+/**
+ * Retrieves an array in a Map.
+ *
+ * @param map Map Handle.
+ * @param key Key string.
+ * @param array Buffer to store array.
+ * @param max_size Maximum size of array buffer.
+ * @param size Optional parameter to store the number of elements written to the buffer.
+ * @return True on success. False if the key is not set, or the key is set
+ * as a value or string (not an array).
+ * @error Invalid Handle.
+ */
+native bool GetTrieArray(Handle map, const char[] key, any[] array, int max_size, int &size=0);
+
+/**
+ * Retrieves a string in a Map.
+ *
+ * @param map Map Handle.
+ * @param key Key string.
+ * @param value Buffer to store value.
+ * @param max_size Maximum size of string buffer.
+ * @param size Optional parameter to store the number of bytes written to the buffer.
+ * @return True on success. False if the key is not set, or the key is set
+ * as a value or array (not a string).
+ * @error Invalid Handle.
+ */
+native bool GetTrieString(Handle map, const char[] key, char[] value, int max_size, int &size=0);
+
+/**
+ * Removes a key entry from a Map.
+ *
+ * @param map Map Handle.
+ * @param key Key string.
+ * @return True on success, false if the value was never set.
+ * @error Invalid Handle.
+ */
+native bool RemoveFromTrie(Handle map, const char[] key);
+
+/**
+ * Clears all entries from a Map.
+ *
+ * @param map Map Handle.
+ * @error Invalid Handle.
+ */
+native void ClearTrie(Handle map);
+
+/**
+ * Retrieves the number of elements in a map.
+ *
+ * @param map Map Handle.
+ * @return Number of elements in the trie.
+ * @error Invalid Handle.
+ */
+native int GetTrieSize(Handle map);
+
+/**
+ * Creates a snapshot of all keys in the map. If the map is changed after this
+ * call, the changes are not reflected in the snapshot. Keys are not sorted.
+ *
+ * @param map Map Handle.
+ * @return New Map Snapshot Handle, which must be closed via CloseHandle().
+ * @error Invalid Handle.
+ */
+native Handle CreateTrieSnapshot(Handle map);
+
+/**
+ * Returns the number of keys in a map snapshot. Note that this may be
+ * different from the size of the map, since the map can change after the
+ * snapshot of its keys was taken.
+ *
+ * @param snapshot Map snapshot.
+ * @return Number of keys.
+ * @error Invalid Handle.
+ */
+native int TrieSnapshotLength(Handle snapshot);
+
+/**
+ * Returns the buffer size required to store a given key. That is, it returns
+ * the length of the key plus one.
+ *
+ * @param snapshot Map snapshot.
+ * @param index Key index (starting from 0).
+ * @return Buffer size required to store the key string.
+ * @error Invalid Handle or index out of range.
+ */
+native int TrieSnapshotKeyBufferSize(Handle snapshot, int index);
+
+/**
+ * Retrieves the key string of a given key in a map snapshot.
+ *
+ * @param snapshot Map snapshot.
+ * @param index Key index (starting from 0).
+ * @param buffer String buffer.
+ * @param maxlength Maximum buffer length.
+ * @return Number of bytes written to the buffer.
+ * @error Invalid Handle or index out of range.
+ */
+native int GetTrieSnapshotKey(Handle snapshot, int index, char[] buffer, int maxlength);