Diff: wolfcrypt/src/wolfevent.c

Revision:

17:ff9d1e86ad5f

Parent:

16:048e5e270a58

--- a/wolfcrypt/src/wolfevent.c	Tue Nov 19 14:32:16 2019 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,284 +0,0 @@
-/* wolfevent.c
- *
- * Copyright (C) 2006-2017 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
- */
-
-#ifdef HAVE_CONFIG_H
-    #include <config.h>
-#endif
-
-#include <wolfssl/wolfcrypt/settings.h>
-
-
-#ifdef HAVE_WOLF_EVENT
-
-#include <wolfssl/internal.h>
-#include <wolfssl/error-ssl.h>
-#include <wolfssl/wolfcrypt/error-crypt.h>
-
-#include <wolfssl/wolfcrypt/wolfevent.h>
-
-
-int wolfEvent_Init(WOLF_EVENT* event, WOLF_EVENT_TYPE type, void* context)
-{
-    if (event == NULL) {
-        return BAD_FUNC_ARG;
-    }
-
-    if (event->state == WOLF_EVENT_STATE_PENDING) {
-        WOLFSSL_MSG("Event already pending!");
-        return BAD_COND_E;
-    }
-
-    XMEMSET(event, 0, sizeof(WOLF_EVENT));
-    event->type = type;
-    event->context = context;
-
-    return 0;
-}
-
-int wolfEvent_Poll(WOLF_EVENT* event, WOLF_EVENT_FLAG flags)
-{
-    int ret = BAD_COND_E;
-
-    /* Check hardware */
-#ifdef WOLFSSL_ASYNC_CRYPT
-    if (event->type >= WOLF_EVENT_TYPE_ASYNC_FIRST &&
-        event->type <= WOLF_EVENT_TYPE_ASYNC_LAST)
-    {
-        ret = wolfAsync_EventPoll(event, flags);
-    }
-#endif /* WOLFSSL_ASYNC_CRYPT */
-
-    return ret;
-}
-
-int wolfEventQueue_Init(WOLF_EVENT_QUEUE* queue)
-{
-    int ret = 0;
-
-    if (queue == NULL) {
-        return BAD_FUNC_ARG;
-    }
-
-    XMEMSET(queue, 0, sizeof(WOLF_EVENT_QUEUE));
-#ifndef SINGLE_THREADED
-    ret = wc_InitMutex(&queue->lock);
-#endif
-    return ret;
-}
-
-
-int wolfEventQueue_Push(WOLF_EVENT_QUEUE* queue, WOLF_EVENT* event)
-{
-    int ret;
-
-    if (queue == NULL || event == NULL) {
-        return BAD_FUNC_ARG;
-    }
-
-#ifndef SINGLE_THREADED
-    if ((ret = wc_LockMutex(&queue->lock)) != 0) {
-        return ret;
-    }
-#endif
-
-    ret = wolfEventQueue_Add(queue, event);
-
-#ifndef SINGLE_THREADED
-    wc_UnLockMutex(&queue->lock);
-#endif
-
-    return ret;
-}
-
-int wolfEventQueue_Pop(WOLF_EVENT_QUEUE* queue, WOLF_EVENT** event)
-{
-    int ret = 0;
-
-    if (queue == NULL || event == NULL) {
-        return BAD_FUNC_ARG;
-    }
-
-#ifndef SINGLE_THREADED
-    /* In single threaded mode "event_queue.lock" doesn't exist */
-    if ((ret = wc_LockMutex(&queue->lock)) != 0) {
-        return ret;
-    }
-#endif
-
-    /* Pop first item off queue */
-    *event = queue->head;
-    ret = wolfEventQueue_Remove(queue, *event);
-
-#ifndef SINGLE_THREADED
-    wc_UnLockMutex(&queue->lock);
-#endif
-
-    return ret;
-}
-
-/* assumes queue is locked by caller */
-int wolfEventQueue_Add(WOLF_EVENT_QUEUE* queue, WOLF_EVENT* event)
-{
-    if (queue == NULL || event == NULL) {
-        return BAD_FUNC_ARG;
-    }
-
-    event->next = NULL; /* added to end */
-    event->prev = NULL;
-    if (queue->tail == NULL)  {
-        queue->head = event;
-    }
-    else {
-        queue->tail->next = event;
-        event->prev = queue->tail;
-    }
-    queue->tail = event;      /* add to the end either way */
-    queue->count++;
-
-    return 0;
-}
-
-/* assumes queue is locked by caller */
-int wolfEventQueue_Remove(WOLF_EVENT_QUEUE* queue, WOLF_EVENT* event)
-{
-    int ret = 0;
-
-    if (queue == NULL || event == NULL) {
-        return BAD_FUNC_ARG;
-    }
-
-    if (event == queue->head && event == queue->tail) {
-        queue->head = NULL;
-        queue->tail = NULL;
-    }
-    else if (event == queue->head) {
-        queue->head = event->next;
-        queue->head->prev = NULL;
-    }
-    else if (event == queue->tail) {
-        queue->tail = event->prev;
-        queue->tail->next = NULL;
-    }
-    else {
-        WOLF_EVENT* next = event->next;
-        WOLF_EVENT* prev = event->prev;
-        next->prev = prev;
-        prev->next = next;
-    }
-    queue->count--;
-
-    return ret;
-}
-
-int wolfEventQueue_Poll(WOLF_EVENT_QUEUE* queue, void* context_filter,
-    WOLF_EVENT** events, int maxEvents, WOLF_EVENT_FLAG flags, int* eventCount)
-{
-    WOLF_EVENT* event;
-    int ret = 0, count = 0;
-
-    if (queue == NULL) {
-        return BAD_FUNC_ARG;
-    }
-
-#ifndef SINGLE_THREADED
-    /* In single threaded mode "event_queue.lock" doesn't exist */
-    if ((ret = wc_LockMutex(&queue->lock)) != 0) {
-        return ret;
-    }
-#endif
-
-    /* itterate event queue */
-    for (event = queue->head; event != NULL; event = event->next)
-    {
-        /* optional filter based on context */
-        if (context_filter == NULL || event->context == context_filter) {
-
-            /* poll event */
-            ret = wolfEvent_Poll(event, flags);
-            if (ret < 0) break; /* exit for */
-
-            /* If event is done then process */
-            if (event->state == WOLF_EVENT_STATE_DONE) {
-                /* remove from queue */
-                ret = wolfEventQueue_Remove(queue, event);
-                if (ret < 0) break; /* exit for */
-
-                /* return pointer in 'events' arg */
-                if (events) {
-                    events[count] = event; /* return pointer */
-                }
-                count++;
-
-                /* check to make sure our event list isn't full */
-                if (events && count >= maxEvents) {
-                    break; /* exit for */
-                }
-            }
-        }
-    }
-
-#ifndef SINGLE_THREADED
-    wc_UnLockMutex(&queue->lock);
-#endif
-
-    /* return number of properly populated events */
-    if (eventCount) {
-        *eventCount = count;
-    }
-
-    return ret;
-}
-
-int wolfEventQueue_Count(WOLF_EVENT_QUEUE* queue)
-{
-    int ret;
-
-    if (queue == NULL) {
-        return BAD_FUNC_ARG;
-    }
-
-#ifndef SINGLE_THREADED
-    /* In single threaded mode "event_queue.lock" doesn't exist */
-    if ((ret = wc_LockMutex(&queue->lock)) != 0) {
-        return ret;
-    }
-#endif
-
-    ret = queue->count;
-
-#ifndef SINGLE_THREADED
-    wc_UnLockMutex(&queue->lock);
-#endif
-
-    return ret;
-}
-
-void wolfEventQueue_Free(WOLF_EVENT_QUEUE* queue)
-{
-    if (queue) {
-    #ifndef SINGLE_THREADED
-        wc_FreeMutex(&queue->lock);
-    #endif
-    }
-}
-
-#endif /* HAVE_WOLF_EVENT */
-