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Add debugging options to documentation
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@ -40,18 +40,24 @@
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#include "lwip/arch.h"
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#include "lwip/opt.h"
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/** lower two bits indicate debug level
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* - 0 all
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* - 1 warning
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* - 2 serious
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* - 3 severe
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/**
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* @defgroup debugging Debugging
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* @ingroup lwip
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* @{
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*/
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/** Debug level: ALL messages*/
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#define LWIP_DBG_LEVEL_ALL 0x00
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#define LWIP_DBG_LEVEL_OFF LWIP_DBG_LEVEL_ALL /* compatibility define only */
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#define LWIP_DBG_LEVEL_WARNING 0x01 /* bad checksums, dropped packets, ... */
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#define LWIP_DBG_LEVEL_SERIOUS 0x02 /* memory allocation failures, ... */
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/** Debug level: Warnings. bad checksums, dropped packets, ... */
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#define LWIP_DBG_LEVEL_WARNING 0x01
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/** Debug level: Serious. memory allocation failures, ... */
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#define LWIP_DBG_LEVEL_SERIOUS 0x02
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/** Debug level: Severe */
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#define LWIP_DBG_LEVEL_SEVERE 0x03
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#define LWIP_DBG_MASK_LEVEL 0x03
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/* compatibility define only */
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#define LWIP_DBG_LEVEL_OFF LWIP_DBG_LEVEL_ALL
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/** flag for LWIP_DEBUGF to enable that debug message */
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#define LWIP_DBG_ON 0x80U
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@ -68,9 +74,14 @@
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#define LWIP_DBG_HALT 0x08U
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/**
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* LWIP_NOASSERT: Disable LWIP_ASSERT checks.
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* -- To disable assertions define LWIP_NOASSERT in arch/cc.h.
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* LWIP_NOASSERT: Disable LWIP_ASSERT checks:
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* To disable assertions define LWIP_NOASSERT in arch/cc.h.
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*/
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#ifdef __DOXYGEN__
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#define LWIP_NOASSERT
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#undef LWIP_NOASSERT
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#endif
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#ifndef LWIP_NOASSERT
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#define LWIP_ASSERT(message, assertion) do { if (!(assertion)) { \
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LWIP_PLATFORM_ASSERT(message); }} while(0)
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@ -81,7 +92,6 @@
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#define LWIP_ASSERT(message, assertion)
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#endif /* LWIP_NOASSERT */
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/** if "expression" isn't true, then print "message" and execute "handler" expression */
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#ifndef LWIP_ERROR
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#ifndef LWIP_NOASSERT
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#define LWIP_PLATFORM_ERROR(message) LWIP_PLATFORM_ASSERT(message)
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@ -91,17 +101,24 @@
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#define LWIP_PLATFORM_ERROR(message)
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#endif
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/* if "expression" isn't true, then print "message" and execute "handler" expression */
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#define LWIP_ERROR(message, expression, handler) do { if (!(expression)) { \
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LWIP_PLATFORM_ERROR(message); handler;}} while(0)
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#endif /* LWIP_ERROR */
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/** Enable debug message printing, but only if debug message type is enabled
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* AND is of correct type AND is at least LWIP_DBG_LEVEL.
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* e.g. \#define LWIP_DEBUG (LWIP_DBG_ON | LWIP_DBG_LEVEL_ALL | LWIP_DBG_TRACE)
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*/
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#ifdef __DOXYGEN__
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#define LWIP_DEBUG
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#undef LWIP_DEBUG
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#endif
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#ifdef LWIP_DEBUG
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#ifndef LWIP_PLATFORM_DIAG
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#error "If you want to use LWIP_DEBUG, LWIP_PLATFORM_DIAG(message) needs to be defined in your arch/cc.h"
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#endif
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/** print debug message only if debug message type is enabled...
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* AND is of correct type AND is at least LWIP_DBG_LEVEL
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*/
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#define LWIP_DEBUGF(debug, message) do { \
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if ( \
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((debug) & LWIP_DBG_ON) && \
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@ -118,5 +135,8 @@
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#define LWIP_DEBUGF(debug, message)
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#endif /* LWIP_DEBUG */
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#endif /* LWIP_HDR_DEBUG_H */
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/**
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* @}
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*/
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#endif /* LWIP_HDR_DEBUG_H */
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