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/* Pango
* pango-threadsafe.h: Thread-safe alternatives of glib datastructures
*
* Copyright (C) 2012 Google, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Google author(s): Behdad Esfahbod
*/
#ifndef __PANGO_THREADSAFE_H__
#define __PANGO_THREADSAFE_H__
#include <glib.h>
#include <pango/pango.h>
G_BEGIN_DECLS
typedef struct _PHashTable {
GHashTable *ht;
GMutex mx;
} PHashTable;
static inline
PHashTable* p_hash_table_new (GHashFunc hash_func,
GEqualFunc key_equal_func)
{
PHashTable *p = g_slice_new0 (PHashTable);
p->ht = g_hash_table_new (hash_func, key_equal_func);
return p;
}
static inline
PHashTable* p_hash_table_new_full (GHashFunc hash_func,
GEqualFunc key_equal_func,
GDestroyNotify key_destroy_func,
GDestroyNotify value_destroy_func)
{
PHashTable *p = g_slice_new0 (PHashTable);
p->ht = g_hash_table_new_full (hash_func,
key_equal_func,
key_destroy_func,
value_destroy_func);
/* Work around bug #686192 */
g_mutex_lock (&p->mx);
g_mutex_unlock (&p->mx);
return p;
}
static inline
void p_hash_table_destroy (PHashTable *hash_table)
{
g_hash_table_destroy (hash_table->ht);
g_mutex_clear (&hash_table->mx);
g_slice_free (PHashTable, hash_table);
}
static inline
void p_hash_table_insert (PHashTable *hash_table,
gpointer key,
gpointer value)
{
g_mutex_lock (&hash_table->mx);
g_hash_table_insert (hash_table->ht, key, value);
g_mutex_unlock (&hash_table->mx);
}
static inline
void p_hash_table_replace (PHashTable *hash_table,
gpointer key,
gpointer value)
{
g_mutex_lock (&hash_table->mx);
g_hash_table_replace (hash_table->ht, key, value);
g_mutex_unlock (&hash_table->mx);
}
static inline
gboolean p_hash_table_remove (PHashTable *hash_table,
gconstpointer key)
{
gboolean ret;
g_mutex_lock (&hash_table->mx);
ret = g_hash_table_remove (hash_table->ht, key);
g_mutex_unlock (&hash_table->mx);
return ret;
}
static inline
gpointer p_hash_table_lookup (PHashTable *hash_table,
gconstpointer key)
{
gpointer ret;
g_mutex_lock (&hash_table->mx);
ret = g_hash_table_lookup (hash_table->ht, key);
g_mutex_unlock (&hash_table->mx);
return ret;
}
static inline
gpointer p_hash_table_lookup_ref (PHashTable *hash_table,
gconstpointer key,
gpointer (*ref_func) (gpointer))
{
gpointer ret;
g_mutex_lock (&hash_table->mx);
ret = g_hash_table_lookup (hash_table->ht, key);
if (ret)
ref_func (ret);
g_mutex_unlock (&hash_table->mx);
return ret;
}
static inline
void p_hash_table_foreach (PHashTable *hash_table,
GHFunc func,
gpointer user_data)
{
g_mutex_lock (&hash_table->mx);
g_hash_table_foreach (hash_table->ht, func, user_data);
g_mutex_unlock (&hash_table->mx);
}
G_END_DECLS
#endif /* __PANGO_THREADSAFE_H__ */
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