Diff: wolfssl/wolfcrypt/wolfevent.h

Revision:

13:80fb167dafdf

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wolfssl/wolfcrypt/wolfevent.h	Tue May 30 06:16:19 2017 +0000
@@ -0,0 +1,125 @@
+/* wolfevent.h
+ *
+ * Copyright (C) 2006-2016 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
+#ifdef HAVE_CAVIUM
+    #include <wolfssl/wolfcrypt/port/cavium/cavium_nitrox.h>
+#endif
+
+#ifndef WOLFSSL_WOLFSSL_TYPE_DEFINED
+#define WOLFSSL_WOLFSSL_TYPE_DEFINED
+typedef struct WOLFSSL WOLFSSL;
+#endif
+typedef struct WOLF_EVENT WOLF_EVENT;
+#ifndef WOLFSSL_WOLFSSL_CTX_TYPE_DEFINED
+#define WOLFSSL_WOLFSSL_CTX_TYPE_DEFINED
+typedef struct WOLFSSL_CTX WOLFSSL_CTX;
+#endif
+
+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;
+
+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
+    CavReqId            reqId;
+#endif
+    int                 ret;    /* Async return code */
+    unsigned int        flags;
+    WOLF_EVENT_TYPE     type;
+
+    /* event flags */
+    WOLF_EVENT_FLAG     pending:1;
+    WOLF_EVENT_FLAG     done:1;
+    /* Future event flags can go here */
+};
+
+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_ */
+