src/lwip/standalone/arch/sys_arch.h

   1 /*
   2  *
   3  *    Copyright (c) 2020 Project CHIP Authors
   4  *    Copyright (c) 2014-2017 Nest Labs, Inc.
   5  *    Copyright (c) 2001-2003 Swedish Institute of Computer Science.
   6  *    All rights reserved.
   7  *
   8  *    Licensed under the Apache License, Version 2.0 (the "License");
   9  *    you may not use this file except in compliance with the License.
  10  *    You may obtain a copy of the License at
  11  *
  12  *        http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  *    Unless required by applicable law or agreed to in writing, software
  15  *    distributed under the License is distributed on an "AS IS" BASIS,
  16  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  *    See the License for the specific language governing permissions and
  18  *    limitations under the License.
  19  */
  20
  21 /*
  22  * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
  23  * All rights reserved.
  24  *
  25  * Redistribution and use in source and binary forms, with or without modification,
  26  * are permitted provided that the following conditions are met:
  27  *
  28  * 1. Redistributions of source code must retain the above copyright notice,
  29  *    this list of conditions and the following disclaimer.
  30  * 2. Redistributions in binary form must reproduce the above copyright notice,
  31  *    this list of conditions and the following disclaimer in the documentation
  32  *    and/or other materials provided with the distribution.
  33  * 3. The name of the author may not be used to endorse or promote products
  34  *    derived from this software without specific prior written permission.
  35  *
  36  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  37  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  38  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
  39  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  40  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
  41  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  42  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  43  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  44  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
  45  * OF SUCH DAMAGE.
  46  *
  47  * This file is part of the lwIP TCP/IP stack.
  48  *
  49  * Author: Adam Dunkels <adam@sics.se>
  50  *
  51  */
  52 #ifndef __ARCH_SYS_ARCH_H__
  53 #define __ARCH_SYS_ARCH_H__
  54
  55 #include <errno.h>
  56
  57 #define SYS_MBOX_NULL NULL
  58 #define SYS_SEM_NULL NULL
  59
  60 typedef u32_t sys_prot_t;
  61
  62 struct sys_sem;
  63 typedef struct sys_sem * sys_sem_t;
  64 #define sys_sem_valid(sem) (((sem) != NULL) && (*(sem) != NULL))
  65 #define sys_sem_set_invalid(sem)                                                                                                   \
  66     do                                                                                                                             \
  67     {                                                                                                                              \
  68         if ((sem) != NULL)                                                                                                         \
  69         {                                                                                                                          \
  70             *(sem) = NULL;                                                                                                         \
  71         }                                                                                                                          \
  72     } while (0)
  73
  74 struct sys_mbox;
  75 typedef struct sys_mbox * sys_mbox_t;
  76 #define sys_mbox_valid(mbox) (((mbox) != NULL) && (*(mbox) != NULL))
  77 #define sys_mbox_set_invalid(mbox)                                                                                                 \
  78     do                                                                                                                             \
  79     {                                                                                                                              \
  80         if ((mbox) != NULL)                                                                                                        \
  81         {                                                                                                                          \
  82             *(mbox) = NULL;                                                                                                        \
  83         }                                                                                                                          \
  84     } while (0)
  85
  86 struct sys_thread;
  87 typedef struct sys_thread * sys_thread_t;
  88
  89 #endif /* __ARCH_SYS_ARCH_H__ */