2008-08-06 11:15:24 -07:00
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/* EINA - EFL data type library
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* Copyright (C) 2007-2008 Jorge Luis Zapata Muga, Cedric Bail
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library;
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* if not, see <http://www.gnu.org/licenses/>.
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*/
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2008-08-08 05:29:13 -07:00
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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2008-08-28 00:46:42 -07:00
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#include <stdio.h>
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#include <string.h>
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2008-09-30 09:25:11 -07:00
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#include <stdlib.h>
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2008-08-28 00:46:42 -07:00
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2008-10-16 14:31:51 -07:00
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#ifdef HAVE_EVIL
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# include <Evil.h>
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#endif
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2009-08-28 05:03:34 -07:00
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#include "eina_config.h"
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2008-07-30 05:46:55 -07:00
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#include "eina_private.h"
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2008-08-28 00:46:42 -07:00
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2009-09-06 15:21:56 -07:00
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/* undefs EINA_ARG_NONULL() so NULL checks are not compiled out! */
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#include "eina_safety_checks.h"
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#include "eina_error.h"
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2011-03-18 15:02:03 -07:00
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#include "eina_stringshare.h"
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2009-09-06 15:21:56 -07:00
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2008-07-30 05:46:55 -07:00
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/* TODO
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2008-09-06 01:48:36 -07:00
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* + add a wrapper for assert?
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2008-07-30 05:46:55 -07:00
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* + add common error numbers, messages
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2008-09-06 01:48:36 -07:00
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* + add a calltrace of errors, not only store the last error but a list of them
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2008-07-30 05:46:55 -07:00
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* and also store the function that set it
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*/
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2008-08-28 00:46:42 -07:00
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2008-07-30 05:46:55 -07:00
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/*============================================================================*
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2010-07-27 19:37:05 -07:00
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* Local *
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*============================================================================*/
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2008-08-28 00:46:42 -07:00
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2008-09-05 00:58:38 -07:00
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/**
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* @cond LOCAL
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*/
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2009-09-06 20:32:22 -07:00
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typedef struct _Eina_Error_Message Eina_Error_Message;
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struct _Eina_Error_Message
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{
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Eina_Bool string_allocated;
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const char *string;
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};
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static Eina_Error_Message *_eina_errors = NULL;
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2009-09-06 15:54:49 -07:00
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static size_t _eina_errors_count = 0;
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static size_t _eina_errors_allocated = 0;
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static Eina_Error _eina_last_error;
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2008-07-30 05:46:55 -07:00
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2009-09-06 20:32:22 -07:00
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static Eina_Error_Message *
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_eina_error_msg_alloc(void)
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{
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size_t idx;
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if (_eina_errors_count == _eina_errors_allocated)
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{
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2010-07-27 19:37:05 -07:00
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void *tmp;
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size_t size;
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if (EINA_UNLIKELY(_eina_errors_allocated == 0))
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size = 24;
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else
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size = _eina_errors_allocated + 8;
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tmp = realloc(_eina_errors, sizeof(Eina_Error_Message) * size);
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if (!tmp)
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return NULL;
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_eina_errors = tmp;
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_eina_errors_allocated = size;
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2009-09-06 20:32:22 -07:00
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}
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idx = _eina_errors_count;
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_eina_errors_count++;
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return _eina_errors + idx;
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}
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2008-09-05 00:58:38 -07:00
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/**
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* @endcond
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*/
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2008-08-08 03:39:47 -07:00
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2008-07-30 05:46:55 -07:00
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/*============================================================================*
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2010-07-27 19:37:05 -07:00
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* Global *
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*============================================================================*/
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2008-08-28 00:46:42 -07:00
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2008-09-05 00:58:38 -07:00
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/**
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* @cond LOCAL
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*/
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2008-08-28 05:41:58 -07:00
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EAPI Eina_Error EINA_ERROR_OUT_OF_MEMORY = 0;
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2009-09-06 20:32:22 -07:00
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static const char EINA_ERROR_OUT_OF_MEMORY_STR[] = "Out of memory";
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2008-07-30 05:46:55 -07:00
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/**
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2008-09-05 00:58:38 -07:00
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* @endcond
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*/
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/**
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2009-09-06 15:21:56 -07:00
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* @internal
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2009-06-22 13:03:58 -07:00
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* @brief Initialize the error module.
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2008-09-05 00:58:38 -07:00
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*
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2009-09-06 15:21:56 -07:00
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* @return #EINA_TRUE on success, #EINA_FALSE on failure.
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2008-08-28 00:46:42 -07:00
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*
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2009-06-22 13:03:58 -07:00
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* This function sets up the error module of Eina. It is called by
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2009-09-06 15:21:56 -07:00
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* eina_init().
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2008-09-05 00:58:38 -07:00
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*
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2009-06-22 13:03:58 -07:00
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* This function registers the error #EINA_ERROR_OUT_OF_MEMORY.
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*
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* @see eina_init()
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2008-07-30 05:46:55 -07:00
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*/
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2009-09-06 15:21:56 -07:00
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Eina_Bool
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eina_error_init(void)
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2008-07-30 05:46:55 -07:00
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{
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2009-09-03 17:53:19 -07:00
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/* TODO register the eina's basic errors */
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2010-07-27 19:37:05 -07:00
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EINA_ERROR_OUT_OF_MEMORY = eina_error_msg_static_register(
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EINA_ERROR_OUT_OF_MEMORY_STR);
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2009-09-06 15:21:56 -07:00
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return EINA_TRUE;
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2008-07-30 05:46:55 -07:00
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}
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2008-09-05 00:58:38 -07:00
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2008-07-30 05:46:55 -07:00
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/**
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2009-09-06 15:21:56 -07:00
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* @internal
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2009-06-22 13:03:58 -07:00
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* @brief Shut down the error module.
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2008-08-28 00:46:42 -07:00
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*
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2009-09-06 15:21:56 -07:00
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* @return #EINA_TRUE on success, #EINA_FALSE on failure.
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2008-09-05 00:58:38 -07:00
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*
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2009-06-22 13:03:58 -07:00
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* This function shuts down the error module set up by
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2009-09-06 15:21:56 -07:00
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* eina_error_init(). It is called by eina_shutdown().
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2009-06-22 13:03:58 -07:00
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*
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* @see eina_shutdown()
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2008-07-30 05:46:55 -07:00
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*/
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2009-09-06 15:21:56 -07:00
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Eina_Bool
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eina_error_shutdown(void)
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2008-07-30 05:46:55 -07:00
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{
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2009-09-06 20:32:22 -07:00
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Eina_Error_Message *eem, *eem_end;
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eem = _eina_errors;
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eem_end = eem + _eina_errors_count;
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2009-09-06 15:54:49 -07:00
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2009-09-06 20:32:22 -07:00
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for (; eem < eem_end; eem++)
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2010-07-27 19:37:05 -07:00
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if (eem->string_allocated)
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2011-03-18 15:02:03 -07:00
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eina_stringshare_del(eem->string);
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2009-09-06 15:54:49 -07:00
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2010-07-27 19:37:05 -07:00
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free(_eina_errors);
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2009-09-06 15:54:49 -07:00
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_eina_errors = NULL;
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_eina_errors_count = 0;
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_eina_errors_allocated = 0;
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2009-09-06 15:21:56 -07:00
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return EINA_TRUE;
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2008-07-30 05:46:55 -07:00
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}
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2009-12-27 00:45:30 -08:00
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/*============================================================================*
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2010-07-27 19:37:05 -07:00
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* API *
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*============================================================================*/
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2009-12-27 00:45:30 -08:00
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2009-09-06 15:54:49 -07:00
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EAPI Eina_Error
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eina_error_msg_register(const char *msg)
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2008-07-30 05:46:55 -07:00
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{
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2009-09-06 20:32:22 -07:00
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Eina_Error_Message *eem;
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2009-09-06 15:54:49 -07:00
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EINA_SAFETY_ON_NULL_RETURN_VAL(msg, 0);
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2008-12-26 10:31:14 -08:00
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2009-09-06 20:32:22 -07:00
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eem = _eina_error_msg_alloc();
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if (!eem)
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2010-07-27 19:37:05 -07:00
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return 0;
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2009-09-06 20:32:22 -07:00
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eem->string_allocated = EINA_TRUE;
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2011-03-18 15:02:03 -07:00
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eem->string = eina_stringshare_add(msg);
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2009-09-06 20:32:22 -07:00
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if (!eem->string)
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2009-09-06 15:54:49 -07:00
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{
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2010-07-27 19:37:05 -07:00
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_eina_errors_count--;
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return 0;
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2009-09-06 20:32:22 -07:00
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}
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2009-09-06 15:54:49 -07:00
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2009-09-06 20:32:22 -07:00
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return _eina_errors_count; /* identifier = index + 1 (== _count). */
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}
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2009-09-06 15:54:49 -07:00
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2009-09-06 20:32:22 -07:00
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EAPI Eina_Error
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eina_error_msg_static_register(const char *msg)
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{
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Eina_Error_Message *eem;
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2008-09-30 09:25:11 -07:00
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2009-09-06 20:32:22 -07:00
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EINA_SAFETY_ON_NULL_RETURN_VAL(msg, 0);
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eem = _eina_error_msg_alloc();
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if (!eem)
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2010-07-27 19:37:05 -07:00
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return 0;
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2009-09-06 20:32:22 -07:00
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eem->string_allocated = EINA_FALSE;
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eem->string = msg;
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return _eina_errors_count; /* identifier = index + 1 (== _count). */
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2008-07-30 05:46:55 -07:00
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}
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2008-09-05 00:58:38 -07:00
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2010-07-24 23:25:06 -07:00
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EAPI Eina_Bool
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eina_error_msg_modify(Eina_Error error, const char *msg)
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{
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EINA_SAFETY_ON_NULL_RETURN_VAL(msg, EINA_FALSE);
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if (error < 1)
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2010-07-27 19:37:05 -07:00
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return EINA_FALSE;
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2010-07-24 23:25:06 -07:00
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if ((size_t)error > _eina_errors_count)
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2010-07-27 19:37:05 -07:00
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return EINA_FALSE;
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2010-07-24 23:25:06 -07:00
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if (_eina_errors[error - 1].string_allocated)
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{
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const char *tmp;
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2011-03-18 15:02:03 -07:00
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if (!(tmp = eina_stringshare_add(msg)))
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2010-07-27 19:37:05 -07:00
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return EINA_FALSE;
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2010-07-24 23:25:06 -07:00
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2011-03-18 15:02:03 -07:00
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eina_stringshare_del(_eina_errors[error - 1].string);
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2010-07-24 23:25:06 -07:00
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_eina_errors[error - 1].string = tmp;
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return EINA_TRUE;
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}
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_eina_errors[error - 1].string = msg;
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return EINA_TRUE;
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}
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2009-09-06 15:54:49 -07:00
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EAPI const char *
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eina_error_msg_get(Eina_Error error)
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2008-07-30 05:46:55 -07:00
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{
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2009-09-06 15:54:49 -07:00
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if (error < 1)
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2010-07-27 19:37:05 -07:00
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return NULL;
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2009-09-06 15:54:49 -07:00
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if ((size_t)error > _eina_errors_count)
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2010-07-27 19:37:05 -07:00
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return NULL;
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2009-09-06 20:32:22 -07:00
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return _eina_errors[error - 1].string;
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2008-07-30 05:46:55 -07:00
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}
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2008-09-05 00:58:38 -07:00
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2009-09-06 15:54:49 -07:00
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EAPI Eina_Error
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eina_error_get(void)
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2008-07-30 05:46:55 -07:00
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{
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2009-09-06 15:54:49 -07:00
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return _eina_last_error;
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2008-07-30 05:46:55 -07:00
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}
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2008-09-05 00:58:38 -07:00
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2009-09-06 15:54:49 -07:00
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EAPI void
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eina_error_set(Eina_Error err)
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2008-07-30 05:46:55 -07:00
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{
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2009-09-06 15:54:49 -07:00
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_eina_last_error = err;
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2008-07-30 05:46:55 -07:00
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}
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2008-09-05 00:58:38 -07:00
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2011-03-18 17:07:23 -07:00
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EAPI Eina_Error
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eina_error_find(const char *msg)
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{
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size_t i;
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EINA_SAFETY_ON_NULL_RETURN_VAL(msg, 0);
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for (i = 0; i < _eina_errors_count; i++)
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{
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if (_eina_errors[i].string_allocated)
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{
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if (_eina_errors[i].string == msg)
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2011-04-14 17:41:01 -07:00
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return i + 1;
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2011-03-18 17:07:23 -07:00
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}
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2011-03-18 17:15:42 -07:00
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if (!strcmp(_eina_errors[i].string, msg))
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2011-04-14 17:41:01 -07:00
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return i + 1;
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2011-03-18 17:07:23 -07:00
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}
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return 0;
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}
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