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112 lines
4.6 KiB
C++
112 lines
4.6 KiB
C++
/*************************************************************************/
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/* lws_helper.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef LWS_HELPER_H
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#define LWS_HELPER_H
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#define LWS_BUF_SIZE 65536
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#define LWS_PACKET_SIZE LWS_BUF_SIZE
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#include "core/io/stream_peer.h"
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#include "core/os/os.h"
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#include "core/reference.h"
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#include "core/ring_buffer.h"
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#include "lws_peer.h"
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struct _LWSRef {
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bool free_context;
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bool is_polling;
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bool is_valid;
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bool is_destroying;
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void *obj;
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struct lws_protocols *lws_structs;
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char *lws_names;
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};
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_LWSRef *_lws_create_ref(void *obj);
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void _lws_free_ref(_LWSRef *ref);
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bool _lws_destroy(struct lws_context *context, _LWSRef *ref);
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bool _lws_poll(struct lws_context *context, _LWSRef *ref);
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void _lws_make_protocols(void *p_obj, lws_callback_function *p_callback, PoolVector<String> p_names, _LWSRef **r_lws_ref);
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/* clang-format off */
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#define LWS_HELPER(CNAME) \
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protected: \
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struct _LWSRef *_lws_ref; \
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struct lws_context *context; \
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bool _keep_servicing; \
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\
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static int _lws_gd_callback(struct lws *wsi, enum lws_callback_reasons reason, void *user, void *in, size_t len) { \
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\
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if (wsi == NULL) { \
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return 0; \
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} \
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\
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struct _LWSRef *ref = (struct _LWSRef *)lws_context_user(lws_get_context(wsi)); \
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if (!ref->is_valid) \
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return 0; \
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CNAME *helper = (CNAME *)ref->obj; \
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helper->_keep_servicing = true; \
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return helper->_handle_cb(wsi, reason, user, in, len); \
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} \
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\
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void invalidate_lws_ref() { \
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if (_lws_ref != NULL) \
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_lws_ref->is_valid = false; \
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} \
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\
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void destroy_context() { \
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if (_lws_destroy(context, _lws_ref)) { \
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context = NULL; \
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_lws_ref = NULL; \
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} \
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} \
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\
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public: \
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virtual int _handle_cb(struct lws *wsi, enum lws_callback_reasons reason, void *user, void *in, size_t len); \
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\
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void _lws_poll() { \
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ERR_FAIL_COND(context == NULL); \
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do { \
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_keep_servicing = false; \
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if (::_lws_poll(context, _lws_ref)) { \
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context = NULL; \
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_lws_ref = NULL; \
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break; \
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} \
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} while (_keep_servicing); \
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} \
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\
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protected:
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/* clang-format on */
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#endif // LWS_HELPER_H
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