| /* |
| * Copyright (c) 2001-2003 Swedish Institute of Computer Science. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
| * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
| * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
| * OF SUCH DAMAGE. |
| * |
| * This file is part of the lwIP TCP/IP stack. |
| * |
| * Author: Adam Dunkels <adam@sics.se> |
| * |
| */ |
| #ifndef LWIP_ARCH_SYS_ARCH_H |
| #define LWIP_ARCH_SYS_ARCH_H |
| |
| #include <errno.h> |
| |
| #define SYS_MBOX_NULL NULL |
| #define SYS_SEM_NULL NULL |
| |
| typedef u32_t sys_prot_t; |
| |
| struct sys_sem; |
| typedef struct sys_sem * sys_sem_t; |
| #define sys_sem_valid(sem) (((sem) != NULL) && (*(sem) != NULL)) |
| #define sys_sem_set_invalid(sem) do { if((sem) != NULL) { *(sem) = NULL; }}while(0) |
| |
| struct sys_mutex; |
| typedef struct sys_mutex * sys_mutex_t; |
| #define sys_mutex_valid(mutex) sys_sem_valid(mutex) |
| #define sys_mutex_set_invalid(mutex) sys_sem_set_invalid(mutex) |
| |
| struct sys_mbox; |
| typedef struct sys_mbox * sys_mbox_t; |
| #define sys_mbox_valid(mbox) sys_sem_valid(mbox) |
| #define sys_mbox_set_invalid(mbox) sys_sem_set_invalid(mbox) |
| |
| struct sys_thread; |
| typedef struct sys_thread * sys_thread_t; |
| |
| #endif /* LWIP_ARCH_SYS_ARCH_H */ |