Joshua Wise's Git repositories - netwatch.git/blob

1 /*

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_DEBUG_H__

33 #define __LWIP_DEBUG_H__

34

35 #include "lwip/arch.h"

36

37 /** lower two bits indicate debug level

38 * - 0 off

39 * - 1 warning

40 * - 2 serious

41 * - 3 severe

42 */

43 #define LWIP_DBG_LEVEL_OFF 0x00

44 #define LWIP_DBG_LEVEL_WARNING 0x01 /* bad checksums, dropped packets, ... */

45 #define LWIP_DBG_LEVEL_SERIOUS 0x02 /* memory allocation failures, ... */

46 #define LWIP_DBG_LEVEL_SEVERE 0x03

47 #define LWIP_DBG_MASK_LEVEL 0x03

48

49 /** flag for LWIP_DEBUGF to enable that debug message */

50 #define LWIP_DBG_ON 0x80U

51 /** flag for LWIP_DEBUGF to disable that debug message */

52 #define LWIP_DBG_OFF 0x00U

53

54 /** flag for LWIP_DEBUGF indicating a tracing message (to follow program flow) */

55 #define LWIP_DBG_TRACE 0x40U

56 /** flag for LWIP_DEBUGF indicating a state debug message (to follow module states) */

57 #define LWIP_DBG_STATE 0x20U

58 /** flag for LWIP_DEBUGF indicating newly added code, not thoroughly tested yet */

59 #define LWIP_DBG_FRESH 0x10U

60 /** flag for LWIP_DEBUGF to halt after printing this debug message */

61 #define LWIP_DBG_HALT 0x08U

62

63 #ifndef LWIP_NOASSERT

64 #define LWIP_ASSERT(x,y) do { if(!(y)) LWIP_PLATFORM_ASSERT(x); } while(0)

65 #else /* LWIP_NOASSERT */

66 #define LWIP_ASSERT(x,y)

67 #endif /* LWIP_NOASSERT */

68

69 /** print "m" message only if "e" is true, and execute "h" expression */

70 #ifndef LWIP_ERROR

71 #define LWIP_ERROR(m,e,h) do { if (!(e)) { LWIP_PLATFORM_ASSERT(m); h;}} while(0)

72 #endif /* LWIP_ERROR */

73

74 #ifdef LWIP_DEBUG

75 /** print debug message only if debug message type is enabled...

76 * AND is of correct type AND is at least LWIP_DBG_LEVEL

77 */

78 #define LWIP_DEBUGF(debug,x) do { \

79 if ( \

80 ((debug) & LWIP_DBG_ON) && \

81 ((debug) & LWIP_DBG_TYPES_ON) && \

82 ((s16_t)((debug) & LWIP_DBG_MASK_LEVEL) >= LWIP_DBG_MIN_LEVEL)) { \

83 LWIP_PLATFORM_DIAG(x); \

84 if ((debug) & LWIP_DBG_HALT) { \

85 while(1); \

86 } \

87 } \

88 } while(0)

89

90 #else /* LWIP_DEBUG */

91 #define LWIP_DEBUGF(debug,x)

92 #endif /* LWIP_DEBUG */

93

94 #endif /* __LWIP_DEBUG_H__ */

95