121 lines
3.5 KiB
C
121 lines
3.5 KiB
C
/* wolfevent.h
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*
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* Copyright (C) 2006-2020 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#ifndef _WOLF_EVENT_H_
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#define _WOLF_EVENT_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef SINGLE_THREADED
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#include <wolfssl/wolfcrypt/wc_port.h>
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#endif
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typedef struct WOLF_EVENT WOLF_EVENT;
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typedef unsigned short WOLF_EVENT_FLAG;
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typedef enum WOLF_EVENT_TYPE {
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WOLF_EVENT_TYPE_NONE,
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#ifdef WOLFSSL_ASYNC_CRYPT
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WOLF_EVENT_TYPE_ASYNC_WOLFSSL, /* context is WOLFSSL* */
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WOLF_EVENT_TYPE_ASYNC_WOLFCRYPT, /* context is WC_ASYNC_DEV */
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WOLF_EVENT_TYPE_ASYNC_FIRST = WOLF_EVENT_TYPE_ASYNC_WOLFSSL,
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WOLF_EVENT_TYPE_ASYNC_LAST = WOLF_EVENT_TYPE_ASYNC_WOLFCRYPT,
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#endif /* WOLFSSL_ASYNC_CRYPT */
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} WOLF_EVENT_TYPE;
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typedef enum WOLF_EVENT_STATE {
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WOLF_EVENT_STATE_READY,
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WOLF_EVENT_STATE_PENDING,
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WOLF_EVENT_STATE_DONE,
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} WOLF_EVENT_STATE;
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struct WOLF_EVENT {
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/* double linked list */
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WOLF_EVENT *next;
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WOLF_EVENT *prev;
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void *context;
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union {
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void *ptr;
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#ifdef WOLFSSL_ASYNC_CRYPT
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struct WC_ASYNC_DEV *async;
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#endif
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} dev;
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#ifdef HAVE_CAVIUM
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word64 reqId;
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#ifdef WOLFSSL_NITROX_DEBUG
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word32 pendCount;
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#endif
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#endif
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#ifndef WC_NO_ASYNC_THREADING
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pthread_t threadId;
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#endif
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int ret; /* Async return code */
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unsigned int flags;
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WOLF_EVENT_TYPE type;
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WOLF_EVENT_STATE state;
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};
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enum WOLF_POLL_FLAGS {
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WOLF_POLL_FLAG_CHECK_HW = 0x01,
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};
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typedef struct {
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WOLF_EVENT *head; /* head of queue */
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WOLF_EVENT *tail; /* tail of queue */
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#ifndef SINGLE_THREADED
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wolfSSL_Mutex lock; /* queue lock */
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#endif
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int count;
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} WOLF_EVENT_QUEUE;
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#ifdef HAVE_WOLF_EVENT
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/* Event */
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WOLFSSL_API int wolfEvent_Init(WOLF_EVENT *event, WOLF_EVENT_TYPE type, void *context);
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WOLFSSL_API int wolfEvent_Poll(WOLF_EVENT *event, WOLF_EVENT_FLAG flags);
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/* Event Queue */
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WOLFSSL_API int wolfEventQueue_Init(WOLF_EVENT_QUEUE *queue);
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WOLFSSL_API int wolfEventQueue_Push(WOLF_EVENT_QUEUE *queue, WOLF_EVENT *event);
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WOLFSSL_API int wolfEventQueue_Pop(WOLF_EVENT_QUEUE *queue, WOLF_EVENT **event);
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WOLFSSL_API int wolfEventQueue_Poll(WOLF_EVENT_QUEUE *queue, void *context_filter,
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WOLF_EVENT **events, int maxEvents, WOLF_EVENT_FLAG flags, int *eventCount);
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WOLFSSL_API int wolfEventQueue_Count(WOLF_EVENT_QUEUE *queue);
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WOLFSSL_API void wolfEventQueue_Free(WOLF_EVENT_QUEUE *queue);
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/* the queue mutex must be locked prior to calling these */
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WOLFSSL_API int wolfEventQueue_Add(WOLF_EVENT_QUEUE *queue, WOLF_EVENT *event);
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WOLFSSL_API int wolfEventQueue_Remove(WOLF_EVENT_QUEUE *queue, WOLF_EVENT *event);
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#endif /* HAVE_WOLF_EVENT */
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* _WOLF_EVENT_H_ */
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