Error passing and handling support. More...

Collaboration diagram for Error:

Topics
	Error Codes
	Common error code definitions.

Data Structures
struct	err
	Error. More...

struct	err_filter
	Error filter for error callbacks. More...

struct	err_callback
	Error callback. More...

Macros
#define	ERR_FLAG_DISABLED BIT(3)
	Flag indicating the error is disabled, meaning setting or clearing the error will not have any effect.

#define	ERR_FLAG_SET BIT(4)
	Flag indicating the error is set. Can also be used in ERR_DEFINE to define an error that will be set after initialization.

#define	ERR_FLAG_SEV_MASK (ERR_SEV_INFO \| ERR_SEV_WARN \| ERR_SEV_FATAL)
	Flag mask indicating the severity of the error.

#define	ERR_DEFINE(_name, _errcode, _serverity, _desc, ...)
	Define an error.

#define	ERR_FILTER_CODE(...)
	Error filter for error codes.

#define	ERR_FILTER_SEV(...)
	Error filter for severities.

#define	ERR_CALLBACK_DEFINE_NAMED(_name, _handler, _user_data, ...)
	Same as ERR_CALLBACK_DEFINE, but with a custom name for the callback.

#define	ERR_CALLBACK_DEFINE(handler, user_data, ...)
	Define an error callback.

#define	ERR_FOREACH_SET(item)
	Iterate over all set errors.

Typedefs
typedef void(*	err_handler_t) (uint32_t errcode, bool set, void *user_data)
	Error handler type.

Enumerations
enum	err_sev { ERR_SEV_INFO = BIT(0) , ERR_SEV_WARN = BIT(1) , ERR_SEV_FATAL = BIT(2) }
	Error severity. More...

enum	err_filter_type { ERR_FILTER_TYPE_INVALID = 0 , ERR_FILTER_TYPE_CODE = 1 , ERR_FILTER_TYPE_SEV = 2 }
	Error filter type. More...

Functions
void	err_report (uint32_t errcode, bool set)
	Set or clear error.

bool	err_is_set (uint32_t errcode)
	Check if the error is set.

Detailed Description

Error passing and handling support.

Macro Definition Documentation

◆ ERR_CALLBACK_DEFINE

#define ERR_CALLBACK_DEFINE	(	handler,
		user_data,
		... )

#include <nturt/err/err.h>

Value:

ERR_CALLBACK_DEFINE_NAMED(CONCAT(__err_handler_, handler), handler, \

user_data, __VA_ARGS__)

ERR_CALLBACK_DEFINE_NAMED

#define ERR_CALLBACK_DEFINE_NAMED(_name, _handler, _user_data,...)

Same as ERR_CALLBACK_DEFINE, but with a custom name for the callback.

Definition err.h:96

Define an error callback.

Parameters

[in]	handler	Handler of the error.
[in]	user_data	Pointer to custom data for the callback.
[in]	...	Optional filters for the error callback. If multiple filters are specified, they are applied in the "and" manner.

Note: Since the name of the callback is derived from the name of handler , if the same handler is used for multiple callbacks, ERR_CALLBACK_DEFINE_NAMED can be used instead to prevent linker errors.

◆ ERR_CALLBACK_DEFINE_NAMED

#define ERR_CALLBACK_DEFINE_NAMED	(	_name,
		_handler,
		_user_data,
		... )

#include <nturt/err/err.h>

Value:

  static const STRUCT_SECTION_ITERABLE(err_callback, _name) = {     \
      .handler = _handler,                                          \
      .user_data = _user_data,                                      \
      .filters = (struct err_filter[]){COND_CODE_1(                 \
          __VA_OPT__(1), (__VA_ARGS__, _ERR_FILTER_LAST),           \
          (_ERR_FILTER_LAST))},                                     \
  }

Same as ERR_CALLBACK_DEFINE, but with a custom name for the callback.

◆ ERR_DEFINE

#define ERR_DEFINE	(	_name,
		_errcode,
		_serverity,
		_desc,
		... )

#include <nturt/err/err.h>

Value:

  static STRUCT_SECTION_ITERABLE(err, CONCAT(__err_, _name)) = {            \
      .errcode = _errcode,                                                  \
      .flags = _serverity | COND_CODE_1(__VA_OPT__(1), (__VA_ARGS__), (0)), \
      .name = STRINGIFY(_name),                                             \
      .desc = _desc,                                                        \
  }

Define an error.

Parameters

[in]	_name	Name of the error.
[in]	_errcode	Code of the error.
[in]	_serverity	Serverity of the error, must be one of err_sev.
[in]	_desc	Description of the error.
[in]	...	Optional flags of the error, multiple flags can be specified by using the bitwise OR operator (\|).

◆ ERR_FILTER_CODE

#define ERR_FILTER_CODE ( ... )

#include <nturt/err/err.h>

Value:

  {                                          \
      .type = ERR_FILTER_TYPE_CODE,          \
      .size = NUM_VA_ARGS(__VA_ARGS__),      \
      .errcodes = (uint32_t[]){__VA_ARGS__}, \
  }

Error filter for error codes.

Parameters

[in] ... Error codes to filter.

◆ ERR_FILTER_SEV

#define ERR_FILTER_SEV ( ... )

#include <nturt/err/err.h>

Value:

  {                                             \
      .type = ERR_FILTER_TYPE_SEV,              \
      .size = NUM_VA_ARGS(__VA_ARGS__),         \
      .serverities = (uint32_t[]){__VA_ARGS__}, \
  }

Error filter for severities.

Parameters

[in] ... Severities to filter.

◆ ERR_FLAG_DISABLED

#define ERR_FLAG_DISABLED BIT(3)

#include <nturt/err/err.h>

Flag indicating the error is disabled, meaning setting or clearing the error will not have any effect.

◆ ERR_FLAG_SET

#define ERR_FLAG_SET BIT(4)

#include <nturt/err/err.h>

Flag indicating the error is set. Can also be used in ERR_DEFINE to define an error that will be set after initialization.

◆ ERR_FLAG_SEV_MASK

#define ERR_FLAG_SEV_MASK (ERR_SEV_INFO | ERR_SEV_WARN | ERR_SEV_FATAL)

#include <nturt/err/err.h>

Flag mask indicating the severity of the error.

◆ ERR_FOREACH_SET

#define ERR_FOREACH_SET ( item )

#include <nturt/err/err.h>

Value:

TAILQ_FOREACH(item, __err_errors, next)

Iterate over all set errors.

Parameters

[out] item Error pointer to the set errors, NULL if the loop exits normally or no errors are set.

Typedef Documentation

◆ err_handler_t

typedef void(* err_handler_t) (uint32_t errcode, bool set, void *user_data)

#include <nturt/err/err.h>

Error handler type.

Parameters

[in]	errcode	Code of the error.
[in]	set	True if the error is set, false if the error is cleared.
[in,out]	user_data	Pointer to custom user data for the callback provided by ERR_CALLBACK_DEFINE.

Enumeration Type Documentation

◆ err_filter_type

enum err_filter_type

#include <nturt/err/err.h>

Error filter type.

Enumerator
ERR_FILTER_TYPE_INVALID	Invalid filter, internal use only.
ERR_FILTER_TYPE_CODE	Filter for error codes.
ERR_FILTER_TYPE_SEV	Filter for severities.

◆ err_sev

enum err_sev

#include <nturt/err/err.h>

Error severity.

Enumerator
ERR_SEV_INFO	Info serverity, the system operates normally.
ERR_SEV_WARN	Warning serverity, the system may continue running.
ERR_SEV_FATAL	Fatal serverity, the system must stop.

Function Documentation

◆ err_is_set()

bool err_is_set ( uint32_t errcode )

#include <nturt/err/err.h>

Check if the error is set.

Parameters

[in] errcode Error code to check.

Returns: true if the error is set, false otherwise.

◆ err_report()

void err_report	(	uint32_t	errcode,
		bool	set )

#include <nturt/err/err.h>

Set or clear error.

Parameters

[in]	errcode	Error code to set or clear.
[in]	set	True to set error, false to clear error.

Topics

Data Structures

Macros

Typedefs

Enumerations

Functions

Detailed Description

Macro Definition Documentation

◆ ERR_CALLBACK_DEFINE

◆ ERR_CALLBACK_DEFINE_NAMED

◆ ERR_DEFINE

◆ ERR_FILTER_CODE

◆ ERR_FILTER_SEV

◆ ERR_FLAG_DISABLED

◆ ERR_FLAG_SET

◆ ERR_FLAG_SEV_MASK

◆ ERR_FOREACH_SET

Typedef Documentation

◆ err_handler_t

Enumeration Type Documentation

◆ err_filter_type

◆ err_sev

Function Documentation

◆ err_is_set()

◆ err_report()