ESP8266
err.h
1 /*
2  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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: Adam Dunkels <adam@sics.se>
30  *
31  */
32 #ifndef __LWIP_ERR_H__
33 #define __LWIP_ERR_H__
34 
35 #include "lwip/opt.h"
36 #include "lwip/arch.h"
37 
38 #ifdef __cplusplus
39 extern "C" {
40 #endif
41 
44 #ifdef LWIP_ERR_T
45 typedef LWIP_ERR_T err_t;
46 #else /* LWIP_ERR_T */
47 typedef s8_t err_t;
48 #endif /* LWIP_ERR_T*/
49 
50 /* Definitions for error constants. */
51 
52 #define ERR_OK 0 /* No error, everything OK. */
53 #define ERR_MEM -1 /* Out of memory error. */
54 #define ERR_BUF -2 /* Buffer error. */
55 #define ERR_TIMEOUT -3 /* Timeout. */
56 #define ERR_RTE -4 /* Routing problem. */
57 #define ERR_INPROGRESS -5 /* Operation in progress */
58 #define ERR_VAL -6 /* Illegal value. */
59 #define ERR_WOULDBLOCK -7 /* Operation would block. */
60 
61 #define ERR_IS_FATAL(e) ((e) < ERR_WOULDBLOCK)
62 
63 #define ERR_ABRT -8 /* Connection aborted. */
64 #define ERR_RST -9 /* Connection reset. */
65 #define ERR_CLSD -10 /* Connection closed. */
66 #define ERR_CONN -11 /* Not connected. */
67 
68 #define ERR_ARG -12 /* Illegal argument. */
69 
70 #define ERR_USE -13 /* Address in use. */
71 
72 #define ERR_IF -14 /* Low-level netif error */
73 #define ERR_ISCONN -15 /* Already connected. */
74 
75 
76 #ifdef LWIP_DEBUG
77 extern const char *lwip_strerr(err_t err)ICACHE_FLASH_ATTR;
78 #else
79 #define lwip_strerr(x) ""
80 #endif /* LWIP_DEBUG */
81 
82 #ifdef __cplusplus
83 }
84 #endif
85 
86 #endif /* __LWIP_ERR_H__ */