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1 /*
2  * Copyright (c) 2017 Simon Goldschmidt
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without modification,
6  * are permitted provided that the following conditions are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright notice,
9  *    this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright notice,
11  *    this list of conditions and the following disclaimer in the documentation
12  *    and/or other materials provided with the distribution.
13  * 3. The name of the author may not be used to endorse or promote products
14  *    derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
19  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
21  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
24  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
25  * OF SUCH DAMAGE.
26  *
27  * This file is part of the lwIP TCP/IP stack.
28  *
29  * Author: Simon Goldschmidt
30  *
31  */
32 #ifndef LWIP_HDR_TEST_SYS_ARCH_H
33 #define LWIP_HDR_TEST_SYS_ARCH_H
34 
35 typedef int sys_sem_t;
36 #define sys_sem_valid(sema) ((sema) != NULL)
37 
38 typedef int sys_mutex_t;
39 #define sys_mutex_valid(mutex) (((mutex) != NULL)
40 
41 struct lwip_mbox {
42   void* sem;
43   void** q_mem;
44   unsigned int head, tail;
45   int size;
46   int used;
47 };
48 typedef struct lwip_mbox sys_mbox_t;
49 #define SYS_MBOX_NULL NULL
50 #define sys_mbox_valid(mbox) ((mbox != NULL) && ((mbox)->sem != NULL)  && ((mbox)->sem != (void*)-1))
51 #define sys_mbox_valid_val(mbox) (((mbox).sem != NULL)  && ((mbox).sem != (void*)-1))
52 
53 /* DWORD (thread id) is used for sys_thread_t but we won't include windows.h */
54 typedef u32_t sys_thread_t;
55 
56 #define SYS_ARCH_DECL_PROTECT(lev)
57 #define SYS_ARCH_PROTECT(lev)
58 #define SYS_ARCH_UNPROTECT(lev)
59 
60 /* to implement doing something while blocking on an mbox or semaphore:
61  * pass a function to test_sys_arch_wait_callback() that returns
62  * '0' if waiting again and
63  * '1' if now there should be something to do (used for asserting)
64  */
65 typedef int (*test_sys_arch_waiting_fn)(sys_sem_t* wait_sem, sys_mbox_t* wait_mbox);
66 void test_sys_arch_wait_callback(test_sys_arch_waiting_fn waiting_fn);
67 
68 /* current time */
69 extern u32_t lwip_sys_now;
70 
71 sys_sem_t* sys_arch_netconn_sem_get(void);
72 void sys_arch_netconn_sem_alloc(void);
73 void sys_arch_netconn_sem_free(void);
74 #define LWIP_NETCONN_THREAD_SEM_GET()   sys_arch_netconn_sem_get()
75 #define LWIP_NETCONN_THREAD_SEM_ALLOC() sys_arch_netconn_sem_alloc()
76 #define LWIP_NETCONN_THREAD_SEM_FREE()  sys_arch_netconn_sem_free()
77 
78 #endif /* LWIP_HDR_TEST_SYS_ARCH_H */
79 
80