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Viewing changes to src/gallium/auxiliary/rbug/rbug_internal.h

  • Committer: mmach
  • Date: 2022-09-22 19:56:13 UTC
  • Revision ID: netbit73@gmail.com-20220922195613-wtik9mmy20tmor0i
2022-09-22 21:17:09

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src/gallium/auxiliary/rbug/rbug_internal.h
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/*
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 * Copyright 2009 VMware, Inc.
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 * All Rights Reserved.
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a
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 * copy of this software and associated documentation files (the "Software"),
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 * to deal in the Software without restriction, including without limitation
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 * on the rights to use, copy, modify, merge, publish, distribute, sub
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 * license, and/or sell copies of the Software, and to permit persons to whom
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 * the Software is furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice (including the next
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 * paragraph) shall be included in all copies or substantial portions of the
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 * Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
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 * VMWARE AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
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 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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 * USE OR OTHER DEALINGS IN THE SOFTWARE.
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 */
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/*
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 * This file is internal to the rbug protocol code, and contains asorted
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 * features needed by the code.
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 */
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#ifndef _RBUG_INTERNAL_H_
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#define _RBUG_INTERNAL_H_
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#include "rbug_proto.h"
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#include "util/u_memory.h"
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#include "util/u_debug.h"
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#include <errno.h>
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int rbug_connection_send_start(struct rbug_connection *con, enum rbug_opcode opcode, uint32_t length);
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int rbug_connection_write(struct rbug_connection *con, void *data, uint32_t size);
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int rbug_connection_send_finish(struct rbug_connection *con, uint32_t *c);
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/**
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 * Only works with multiples of 2
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 */
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#define PAD(from, to)                       \
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do {                                        \
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        from = (from + to - 1) & ~(to - 1); \
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} while(0)
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#define LEN(size)         \
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do {                      \
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        PAD(__len, size); \
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        __len += size;    \
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} while(0)
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#define LEN_ARRAY(size, name)       \
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do {                                \
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        LEN(4);                     \
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        PAD(__len, size);           \
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        __len += size * name##_len; \
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} while(0)
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#define WRITE(size, type, name)             \
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do {                                        \
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        PAD(__pos, size);                   \
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        *((type *)(&__data[__pos])) = name; \
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        __pos += size;                      \
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} while(0)
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#define WRITE_ARRAY(size, type, name)                    \
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do {                                                     \
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        WRITE(4, uint32_t, name##_len);                  \
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        PAD(__pos, size);                                \
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        memcpy(&__data[__pos], name, size * name##_len); \
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        __pos += size * name##_len;                      \
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} while(0)
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#define READ(size, type, name)                      \
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do {                                                \
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        PAD(pos, size);                             \
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        pos += size;                                \
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        if (pos > len)                              \
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                break;                              \
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        ret->name = *((type *)(&data[pos - size])); \
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} while(0)
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#define READ_ARRAY(size, type, name)                             \
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do {                                                             \
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        READ(4, uint32_t, name##_len);                           \
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        if (pos > len)                                           \
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                break;                                           \
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        PAD(pos, size);                                          \
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        pos += size * ret->name##_len;                           \
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        if (pos > len)                                           \
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                break;                                           \
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        ret->name = (type *)&data[pos - size * ret->name##_len]; \
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} while(0)
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#endif