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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001, 2004, 2005, 2007, 2008
Free Software Foundation, Inc.
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 3 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, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301 USA */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <property0.h>
#include <mailutils/errno.h>
#include <mailutils/assoc.h>
#include <stdlib.h>
static void
prop_free_value (void *data)
{
struct property_item *item = data;
free (item->value);
}
int
mu_property_create (mu_property_t *pp, void *owner)
{
int rc;
mu_property_t prop;
if (pp == NULL)
return MU_ERR_OUT_PTR_NULL;
prop = calloc (1, sizeof *prop);
if (prop == NULL)
return ENOMEM;
rc = mu_assoc_create (&prop->assoc, sizeof (struct property_item), 0);
if (rc)
{
free (prop);
return rc;
}
mu_assoc_set_free (prop->assoc, prop_free_value);
mu_monitor_create (&prop->lock, 0, prop);
prop->owner = owner;
*pp = prop;
return 0;
}
void
mu_property_destroy (mu_property_t *pp, void *owner)
{
if (pp && *pp)
{
mu_property_t prop = *pp;
if (prop->owner == owner)
{
/* Destroy the list and is properties. */
mu_monitor_wrlock (prop->lock);
mu_assoc_destroy (&prop->assoc);
mu_monitor_unlock (prop->lock);
mu_monitor_destroy (&prop->lock, prop);
free (prop);
}
*pp = NULL;
}
}
void *
mu_property_get_owner (mu_property_t prop)
{
return (prop == NULL) ? NULL : prop->owner;
}
int
mu_property_set_value (mu_property_t prop, const char *key, const char *value,
int overwrite)
{
struct property_item *item;
int rc;
if (!prop)
return EINVAL;
rc = mu_assoc_ref_install (prop->assoc, key, (void **)&item);
if (rc == MU_ERR_NOENT)
{
item->value = strdup (value);
}
else if (overwrite)
{
free (item->value);
item->value = strdup (value);
}
else
return 0;
if (!item->value)
{
mu_assoc_remove (prop->assoc, key);
return ENOMEM;
}
return 0;
}
int
mu_property_sget_value (mu_property_t prop, const char *key,
const char **buffer)
{
struct property_item *item;
if (!prop)
return EINVAL;
item = mu_assoc_ref (prop->assoc, key);
if (item == NULL)
return MU_ERR_NOENT;
if (buffer)
*buffer = item->value;
return 0;
}
int
mu_property_aget_value (mu_property_t prop, const char *key,
char **buffer)
{
const char *value;
int rc = mu_property_sget_value (prop, key, &value);
if (rc == 0)
{
if ((*buffer = strdup (value)) == NULL)
return ENOMEM;
}
return rc;
}
int
mu_property_get_value (mu_property_t prop, const char *key, char *buffer,
size_t buflen, size_t *n)
{
size_t len = 0;
const char *value;
int rc = mu_property_sget_value (prop, key, &value);
if (rc == 0)
{
len = strlen (value) + 1;
if (buffer && buflen)
{
if (buflen < len)
len = buflen;
len--;
memcpy (buffer, value, len);
buffer[len] = 0;
}
}
if (n)
*n = len;
return rc;
}
int
mu_property_is_set (mu_property_t prop, const char *key)
{
struct property_item *item = mu_assoc_ref (prop->assoc, key);
return (item == NULL) ? 0 : 1;
}
int
mu_property_set (mu_property_t prop, const char *key)
{
return mu_property_set_value (prop, key, "", 1);
}
int
mu_property_unset (mu_property_t prop, const char *key)
{
if (!prop)
return EINVAL;
return mu_assoc_remove (prop->assoc, key);
}
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