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- /* wolfevent.h
- *
- * Copyright (C) 2006-2022 wolfSSL Inc.
- *
- * This file is part of wolfSSL.
- *
- * wolfSSL is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * wolfSSL 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, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
- */
- #ifndef _WOLF_EVENT_H_
- #define _WOLF_EVENT_H_
- #ifdef __cplusplus
- extern "C" {
- #endif
- #ifndef SINGLE_THREADED
- #include <wolfssl/wolfcrypt/wc_port.h>
- #endif
- typedef struct WOLF_EVENT WOLF_EVENT;
- typedef unsigned short WOLF_EVENT_FLAG;
- typedef enum WOLF_EVENT_TYPE {
- WOLF_EVENT_TYPE_NONE,
- #ifdef WOLFSSL_ASYNC_CRYPT
- WOLF_EVENT_TYPE_ASYNC_WOLFSSL, /* context is WOLFSSL* */
- WOLF_EVENT_TYPE_ASYNC_WOLFCRYPT, /* context is WC_ASYNC_DEV */
- WOLF_EVENT_TYPE_ASYNC_FIRST = WOLF_EVENT_TYPE_ASYNC_WOLFSSL,
- WOLF_EVENT_TYPE_ASYNC_LAST = WOLF_EVENT_TYPE_ASYNC_WOLFCRYPT,
- #endif /* WOLFSSL_ASYNC_CRYPT */
- } WOLF_EVENT_TYPE;
- typedef enum WOLF_EVENT_STATE {
- WOLF_EVENT_STATE_READY,
- WOLF_EVENT_STATE_PENDING,
- WOLF_EVENT_STATE_DONE,
- } WOLF_EVENT_STATE;
- struct WOLF_EVENT {
- /* double linked list */
- WOLF_EVENT* next;
- WOLF_EVENT* prev;
- void* context;
- union {
- void* ptr;
- #ifdef WOLFSSL_ASYNC_CRYPT
- struct WC_ASYNC_DEV* async;
- #endif
- } dev;
- #ifdef HAVE_CAVIUM
- word64 reqId;
- #ifdef WOLFSSL_NITROX_DEBUG
- word32 pendCount;
- #endif
- #endif
- #ifndef WC_NO_ASYNC_THREADING
- pthread_t threadId;
- #endif
- int ret; /* Async return code */
- unsigned int flags;
- WOLF_EVENT_TYPE type;
- WOLF_EVENT_STATE state;
- };
- enum WOLF_POLL_FLAGS {
- WOLF_POLL_FLAG_CHECK_HW = 0x01,
- };
- typedef struct {
- WOLF_EVENT* head; /* head of queue */
- WOLF_EVENT* tail; /* tail of queue */
- #ifndef SINGLE_THREADED
- wolfSSL_Mutex lock; /* queue lock */
- #endif
- int count;
- } WOLF_EVENT_QUEUE;
- #ifdef HAVE_WOLF_EVENT
- /* Event */
- WOLFSSL_API int wolfEvent_Init(WOLF_EVENT* event, WOLF_EVENT_TYPE type, void* context);
- WOLFSSL_API int wolfEvent_Poll(WOLF_EVENT* event, WOLF_EVENT_FLAG flags);
- /* Event Queue */
- WOLFSSL_API int wolfEventQueue_Init(WOLF_EVENT_QUEUE* queue);
- WOLFSSL_API int wolfEventQueue_Push(WOLF_EVENT_QUEUE* queue, WOLF_EVENT* event);
- WOLFSSL_API int wolfEventQueue_Pop(WOLF_EVENT_QUEUE* queue, WOLF_EVENT** event);
- WOLFSSL_API int wolfEventQueue_Poll(WOLF_EVENT_QUEUE* queue, void* context_filter,
- WOLF_EVENT** events, int maxEvents, WOLF_EVENT_FLAG flags, int* eventCount);
- WOLFSSL_API int wolfEventQueue_Count(WOLF_EVENT_QUEUE* queue);
- WOLFSSL_API void wolfEventQueue_Free(WOLF_EVENT_QUEUE* queue);
- /* the queue mutex must be locked prior to calling these */
- WOLFSSL_API int wolfEventQueue_Add(WOLF_EVENT_QUEUE* queue, WOLF_EVENT* event);
- WOLFSSL_API int wolfEventQueue_Remove(WOLF_EVENT_QUEUE* queue, WOLF_EVENT* event);
- #endif /* HAVE_WOLF_EVENT */
- #ifdef __cplusplus
- } /* extern "C" */
- #endif
- #endif /* _WOLF_EVENT_H_ */
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