HaxeFoundation.haxe/std/hl/_std/sys/thread/Tls.hx

/*
 * Copyright (C)2005-2019 Haxe Foundation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
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 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
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 */

package sys.thread;

#if doc_gen
@:coreApi
extern class Tls<T> {
	public var value(get, set):T;
	public function new():Void;
}
#else

/**
	Creates thread local storage.
	Warning : ATM Tls does not protect the value from being GC'ed. Keep the value reachable to avoid crashes.
 */
@:hlNative("std")
abstract Tls<T>(hl.Abstract<"hl_tls">) {
	public var value(get, set):T;

	/**
		Creates thread local storage. This is placeholder that can store
		a value that will be different depending on the local thread.
		Set the tls value to `null` before exiting the thread
		or the memory will never be collected.
	**/
	public function new() {
		this = tls_alloc(true);
	}

	/**
		Returns the value set by tls_set for the local thread.
	**/
	function get_value():T {
		return tls_get(this);
	}

	/**
		Set the value of the TLS for the local thread.
	**/
	function set_value(v:T) {
		tls_set(this, v);
		return v;
	}

	static function tls_alloc(gcValue:Bool)
		return null;

	static function tls_get(t):Dynamic
		return null;

	static function tls_set(t, v:Dynamic) {}
}
#end