gnunet_error_codes.c File Reference

#include "gnunet_error_codes.h"
#include <stddef.h>
#include <microhttpd.h>
#include <gettext.h>

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Data Structures
struct	ErrorCodeAndHint
	A pair containing an error code and its hint. More...

Macros
#define	MHD_HTTP_UNINITIALIZED   0
	MHD does not define our value for 0 (client-side generated code). More...

Functions
const char *	GNUNET_ErrorCode_get_hint (enum GNUNET_ErrorCode ec)
	Returns a hint for a given error code. More...
unsigned int	GNUNET_ErrorCode_get_http_status (enum GNUNET_ErrorCode ec)
	Return HTTP status for a given error code. More...
unsigned int	GNUNET_ErrorCode_get_http_status_safe (enum GNUNET_ErrorCode ec)
	Return HTTP status for a given error code that is guaranteed to work (no corner cases). More...

Variables
static const struct ErrorCodeAndHint	code_hint_pairs []
	The list of all error codes with their hints. More...
static const unsigned int	code_hint_pairs_length = 22
	The length of code_hint_pairs. More...

Macro Definition Documentation

MHD_HTTP_UNINITIALIZED

#define MHD_HTTP_UNINITIALIZED   0

MHD does not define our value for 0 (client-side generated code).

Definition at line 28 of file gnunet_error_codes.c.

Function Documentation

GNUNET_ErrorCode_get_hint()

const char * GNUNET_ErrorCode_get_hint

(

enum GNUNET_ErrorCode

ec

)

Returns a hint for a given error code.

Parameters

ec	the error code.

Returns

the hint if it could be found, otherwise "<no hint found>"

Definition at line 201 of file gnunet_error_codes.c.

{
  unsigned int lower = 0;
  unsigned int upper = code_hint_pairs_length - 1;
  unsigned int mid = upper / 2;
  while (lower <= upper)
  {
    mid = (upper + lower) / 2;
    if (code_hint_pairs[mid].ec < ec)
    {
      lower = mid + 1;
    }
    else if (code_hint_pairs[mid].ec > ec)
    {
      upper = mid - 1;
    }
    else
    {
      return code_hint_pairs[mid].hint;
    }
  }
  return "<no hint found>";
}

GNUNET_ErrorCode_get_http_status()

unsigned int GNUNET_ErrorCode_get_http_status

(

enum GNUNET_ErrorCode

ec

)

Return HTTP status for a given error code.

Parameters

ec	the error code.

Returns

the HTTP status code for the given ec, UINT_MAX if not found

Definition at line 227 of file gnunet_error_codes.c.

{
  unsigned int lower = 0;
  unsigned int upper = code_hint_pairs_length - 1;
  unsigned int mid = upper / 2;
  while (lower <= upper)
  {
    mid = (upper + lower) / 2;
    if (code_hint_pairs[mid].ec < ec)
    {
      lower = mid + 1;
    }
    else if (code_hint_pairs[mid].ec > ec)
    {
      upper = mid - 1;
    }
    else
    {
      return code_hint_pairs[mid].http_code;
    }
  }
  return UINT_MAX;
}

Referenced by GNUNET_ErrorCode_get_http_status_safe().

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GNUNET_ErrorCode_get_http_status_safe()

unsigned int GNUNET_ErrorCode_get_http_status_safe

(

enum GNUNET_ErrorCode

ec

)

Return HTTP status for a given error code that is guaranteed to work (no corner cases).

Parameters

ec	the error code.

Returns

the HTTP status code for the given ec, 500 if the ec is not found or is a client-side code

Definition at line 253 of file gnunet_error_codes.c.

{
  unsigned int hc;
 
  hc = GNUNET_ErrorCode_get_http_status (ec);
  if ( (0 == hc) ||
       (UINT_MAX == hc) )
    return MHD_HTTP_INTERNAL_SERVER_ERROR;
  return hc;
}

Variable Documentation

code_hint_pairs

const struct ErrorCodeAndHint code_hint_pairs[]

static

The list of all error codes with their hints.

Definition at line 55 of file gnunet_error_codes.c.

Referenced by GNUNET_ErrorCode_get_hint(), and GNUNET_ErrorCode_get_http_status().

code_hint_pairs_length

const unsigned int code_hint_pairs_length = 22

static

The length of code_hint_pairs.

Definition at line 196 of file gnunet_error_codes.c.

Referenced by GNUNET_ErrorCode_get_hint(), and GNUNET_ErrorCode_get_http_status().