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/* EINA - EFL data type library
* Copyright (C) 2002,2003,2004,2005,2006,2007,2008,2010
* Carsten Haitzler,
* Jorge Luis Zapata Muga,
* Cedric Bail,
* Gustavo Sverzut Barbieri
* Tom Hacohen
* Brett Nash
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library;
* if not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "eina_config.h"
#include "eina_private.h"
#include "eina_log.h"
#include "eina_lock.h"
#include "eina_share_common.h"
/* undefs EINA_ARG_NONULL() so NULL checks are not compiled out! */
#include "eina_safety_checks.h"
#include "eina_tmpstr.h"
typedef struct _Str Str;
struct _Str
{
size_t length;
Str *next;
char *str;
Eina_Bool ma : 1;
};
static Eina_Lock _mutex;
static Str *strs = NULL;
Eina_Bool
eina_tmpstr_init(void)
{
if (!eina_lock_new(&_mutex)) return EINA_FALSE;
return EINA_TRUE;
}
Eina_Bool
eina_tmpstr_shutdown(void)
{
eina_lock_free(&_mutex);
return EINA_TRUE;
}
EINA_API Eina_Tmpstr *
eina_tmpstr_add_length(const char *str, size_t length)
{
Str *s;
if (!str || !length) return NULL;
s = malloc(sizeof(Str) + length + 1);
if (!s) return NULL;
s->length = length;
s->str = ((char *)s) + sizeof(Str);
strncpy(s->str, str, length);
s->str[length] = '\0';
s->ma = EINA_FALSE;
eina_lock_take(&_mutex);
s->next = strs;
strs = s;
eina_lock_release(&_mutex);
return s->str;
}
EINA_API Eina_Tmpstr *
eina_tmpstr_manage_new_length(char *str, size_t length)
{
Str *s;
if (!str || !length) return NULL;
s = calloc(1, sizeof(Str));
if (!s) return NULL;
s->length = length;
s->str = str;
s->ma = EINA_TRUE;
eina_lock_take(&_mutex);
s->next = strs;
strs = s;
eina_lock_release(&_mutex);
return s->str;
}
EINA_API Eina_Tmpstr *
eina_tmpstr_manage_new(char *str)
{
size_t len;
if (!str) return NULL;
len = strlen(str);
return eina_tmpstr_manage_new_length(str, len);
}
EINA_API Eina_Tmpstr *
eina_tmpstr_add(const char *str)
{
size_t len;
if (!str) return NULL;
len = strlen(str);
return eina_tmpstr_add_length(str, len);
}
EINA_API void
eina_tmpstr_del(Eina_Tmpstr *tmpstr)
{
Str *s, *sp;
if ((!strs) || (!tmpstr)) return;
eina_lock_take(&_mutex);
for (sp = NULL, s = strs; s; sp = s, s = s->next)
{
if (s->str == tmpstr)
{
if (sp) sp->next = s->next;
else strs = s->next;
if (s->ma) free(s->str);
free(s);
break;
}
}
eina_lock_release(&_mutex);
}
EINA_API size_t
eina_tmpstr_strlen(Eina_Tmpstr *tmpstr)
{
if (!tmpstr) return 0;
return eina_tmpstr_len(tmpstr) + 1;
}
EINA_API size_t
eina_tmpstr_len(Eina_Tmpstr *tmpstr)
{
Str *s;
if (!tmpstr) return 0;
if (!strs) return strlen(tmpstr);
eina_lock_take(&_mutex);
for (s = strs; s; s = s->next)
{
if (s->str == tmpstr)
{
size_t ret = s->length;
eina_lock_release(&_mutex);
return ret;
}
}
eina_lock_release(&_mutex);
return strlen(tmpstr);
}
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