rbug: Add Gallium Remote Debugger Protocol code

	This is the (de)marshalling and connection managment code

1 files changed, 100 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/rbug/rbug_internal.h b/src/gallium/auxiliary/rbug/rbug_internal.h
new file mode 100644
index 00000000000..4aba1a810f6
--- /dev/null
+++ b/src/gallium/auxiliary/rbug/rbug_internal.h
@@ -0,0 +1,100 @@
+/*
+ * Copyright 2009 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * 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
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, 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 (including the next
+ * paragraph) 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 NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VMWARE AND/OR THEIR SUPPLIERS 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.
+ */
+
+/*
+ * This file is internal to the rbug protocol code, and contains asorted
+ * features needed by the code.
+ */
+
+#ifndef _RBUG_INTERNAL_H_
+#define _RBUG_INTERNAL_H_
+
+#include "rbug/rbug_proto.h"
+
+#include "util/u_memory.h"
+#include "util/u_debug.h"
+#include <errno.h>
+
+int rbug_connection_send_start(struct rbug_connection *con, enum rbug_opcode opcode, uint32_t length);
+int rbug_connection_write(struct rbug_connection *con, void *data, uint32_t size);
+int rbug_connection_send_finish(struct rbug_connection *con, uint32_t *c);
+
+/**
+ * Only works with multiples of 2
+ */
+#define PAD(from, to)                       \
+do {                                        \
+	from = (from + to - 1) & ~(to - 1); \
+} while(0)
+
+#define LEN(size)         \
+do {                      \
+	PAD(__len, size); \
+	__len += size;    \
+} while(0)
+
+#define LEN_ARRAY(size, name)       \
+do {                                \
+	LEN(4);                     \
+	PAD(__len, size);           \
+	__len += size * name##_len; \
+} while(0)
+
+#define WRITE(size, type, name)             \
+do {                                        \
+	PAD(__pos, size);                   \
+	*((type *)(&__data[__pos])) = name; \
+	__pos += size;                      \
+} while(0)
+
+#define WRITE_ARRAY(size, type, name)                    \
+do {                                                     \
+	WRITE(4, uint32_t, name##_len);                  \
+	PAD(__pos, size);                                \
+	memcpy(&__data[__pos], name, size * name##_len); \
+	__pos += size * name##_len;                      \
+} while(0)
+
+#define READ(size, type, name)                      \
+do {                                                \
+	PAD(pos, size);                             \
+	pos += size;                                \
+	if (pos > len)                              \
+		break;                              \
+	ret->name = *((type *)(&data[pos - size])); \
+} while(0)
+
+#define READ_ARRAY(size, type, name)                             \
+do {                                                             \
+	READ(4, uint32_t, name##_len);                           \
+	if (pos > len)                                           \
+		break;                                           \
+	PAD(pos, size);                                          \
+	pos += size * ret->name##_len;                           \
+	if (pos > len)                                           \
+		break;                                           \
+	ret->name = (type *)&data[pos - size * ret->name##_len]; \
+} while(0)
+
+#endif