err.h 3.1 KB

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  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. #include "lwip/opt.h"
  35. #include "lwip/arch.h"
  36. #ifdef __cplusplus
  37. extern "C" {
  38. #endif
  39. /** Define LWIP_ERR_T in cc.h if you want to use
  40. * a different type for your platform (must be signed). */
  41. #ifdef LWIP_ERR_T
  42. typedef LWIP_ERR_T err_t;
  43. #else /* LWIP_ERR_T */
  44. typedef s8_t err_t;
  45. #endif /* LWIP_ERR_T*/
  46. /* Definitions for error constants. */
  47. #define ERR_OK 0 /* No error, everything OK. */
  48. #define ERR_MEM -1 /* Out of memory error. */
  49. #define ERR_BUF -2 /* Buffer error. */
  50. #define ERR_TIMEOUT -3 /* Timeout. */
  51. #define ERR_RTE -4 /* Routing problem. */
  52. #define ERR_INPROGRESS -5 /* Operation in progress */
  53. #define ERR_VAL -6 /* Illegal value. */
  54. #define ERR_WOULDBLOCK -7 /* Operation would block. */
  55. #define ERR_IS_FATAL(e) ((e) < ERR_WOULDBLOCK)
  56. #define ERR_ABRT -8 /* Connection aborted. */
  57. #define ERR_RST -9 /* Connection reset. */
  58. #define ERR_CLSD -10 /* Connection closed. */
  59. #define ERR_CONN -11 /* Not connected. */
  60. #define ERR_ARG -12 /* Illegal argument. */
  61. #define ERR_USE -13 /* Address in use. */
  62. #define ERR_IF -14 /* Low-level netif error */
  63. #define ERR_ISCONN -15 /* Already connected. */
  64. #ifdef LWIP_DEBUG
  65. extern const char *lwip_strerr(err_t err)ICACHE_FLASH_ATTR;
  66. #else
  67. #define lwip_strerr(x) ""
  68. #endif /* LWIP_DEBUG */
  69. #ifdef __cplusplus
  70. }
  71. #endif
  72. #endif /* __LWIP_ERR_H__ */