Update Files

Kinc/Sources/kinc/libs/system/smd/private-lib-system-smd.h

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+/*
+ * lws System Message Distribution
+ *
+ * Copyright (C) 2019 - 2020 Andy Green <andy@warmcat.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+
+#if defined(LWS_WITH_SECURE_STREAMS)
+#define LWS_SMD_SS_RX_HEADER_LEN_EFF	(LWS_SMD_SS_RX_HEADER_LEN)
+#else
+#define LWS_SMD_SS_RX_HEADER_LEN_EFF	(0)
+#endif
+
+struct lws_smd_peer;
+
+typedef struct lws_smd_msg {
+	lws_dll2_t			list;
+
+	struct lws_smd_peer		*exc;
+
+	lws_usec_t			timestamp;
+	lws_smd_class_t			_class;
+
+	uint16_t			length;
+	uint16_t			refcount;
+
+	/* message itself is over-allocated after this */
+} lws_smd_msg_t;
+
+typedef struct lws_smd_peer {
+	lws_dll2_t			list;
+
+#if defined(LWS_WITH_SECURE_STREAMS)
+	lws_ss_handle_t			*ss_handle; /* LSMDT_SECURE_STREAMS */
+#endif
+
+	lws_smd_notification_cb_t	cb;   /* LSMDT_<other> */
+	struct lws_context		*ctx;
+	void				*opaque;
+
+	/* NULL, or next message we will handle */
+	lws_smd_msg_t			*tail;
+
+	lws_smd_class_t			_class_filter;
+} lws_smd_peer_t;
+
+/*
+ * Manages message distribution
+ *
+ * There is one of these in the lws_context, but the distribution action also
+ * gets involved in delivering to pt event loops individually for SMP case
+ */
+
+typedef struct lws_smd {
+	lws_dll2_owner_t		owner_messages; /* lws_smd_msg_t */
+	lws_mutex_t			lock_messages;
+	lws_dll2_owner_t		owner_peers;	/* lws_smd_peer_t */
+	lws_mutex_t			lock_peers;
+
+	/* union of peer class filters, suppress creation of msg classes not set */
+	lws_smd_class_t			_class_filter;
+
+	char				delivering;
+} lws_smd_t;
+
+/* check if this tsi has pending messages to deliver */
+
+int
+lws_smd_message_pending(struct lws_context *ctx);
+
+int
+lws_smd_msg_distribute(struct lws_context *ctx);
+
+int
+_lws_smd_destroy(struct lws_context *ctx);
+