| /* |
| * 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_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 |