event.h

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/* 2020-2026 Quantum Resistant Cryptographic Solutions Corporation
 * All Rights Reserved.
 *
 * NOTICE:
 * This software and all accompanying materials are the exclusive property of
 * Quantum Resistant Cryptographic Solutions Corporation (QRCS). The intellectual
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 * protected under applicable Canadian, U.S., and international copyright,
 * patent, and trade secret laws.
 *
 * CRYPTOGRAPHIC ALGORITHMS AND IMPLEMENTATIONS:
 * - This software includes implementations of cryptographic primitives and
 *   algorithms that are standardized or in the public domain, such as AES
 *   and SHA-3, which are not proprietary to QRCS.
 * - This software also includes cryptographic primitives, constructions, and
 *   algorithms designed by QRCS, including but not limited to RCS, SCB, CSX, QMAC, and
 *   related components, which are proprietary to QRCS.
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 *   parameter selections, and engineering work contained in this software are
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 *   Public Research and Evaluation License (QRCS-PREL), 2025-2026.
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 * EXPERIMENTAL CRYPTOGRAPHY NOTICE:
 * Portions of this software may include experimental, novel, or evolving
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 * ARISING FROM THE USE OR MISUSE OF THIS SOFTWARE.
 *
 * FULL LICENSE:
 * This software is subject to the Quantum Resistant Cryptographic Solutions
 * Public Research and Evaluation License (QRCS-PREL), 2025-2026. The complete license terms
 * are provided in the accompanying LICENSE file or at https://www.qrcscorp.ca.
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 * Written by: John G. Underhill
 * Contact: contact@qrcscorp.ca
 */
 
#ifndef QSC_EVENT_H
#define QSC_EVENT_H
 
#include "qsccommon.h"
#include "async.h"
#include <stdarg.h>
 
QSC_CPLUSPLUS_ENABLED_START


#define QSC_EVENT_NAME_SIZE 32UL

#define QSC_EVENT_MAX_LISTENERS 16384

typedef void (*qsc_event_callback)(size_t, ...);

QSC_EXPORT_API typedef struct qsc_event_handler
{
    qsc_event_callback callback;  
    char name[QSC_EVENT_NAME_SIZE];  
} qsc_event_handler;

QSC_EXPORT_API typedef struct event_state
{
    qsc_event_handler* listeners; 
    size_t lcount;                    
    qsc_mutex opmtx;               
    bool initialized;                
} event_state;

QSC_EXPORT_API void qsc_event_clear_listener(event_state* ctx, const char name[QSC_EVENT_NAME_SIZE]);

QSC_EXPORT_API qsc_event_callback qsc_event_get_callback(event_state* ctx, const char name[QSC_EVENT_NAME_SIZE]);

QSC_EXPORT_API void qsc_event_dispose(event_state* ctx);

QSC_EXPORT_API bool qsc_event_listener_name_exists(const event_state* ctx, const char name[QSC_EVENT_NAME_SIZE]);

QSC_EXPORT_API void qsc_event_initialize(event_state* ctx);

QSC_EXPORT_API int32_t qsc_event_register(event_state* ctx, const char name[QSC_EVENT_NAME_SIZE], qsc_event_callback callback);
 
QSC_CPLUSPLUS_ENABLED_END
 
#endif