mirror of
https://github.com/Gnucash/gnucash.git
synced 2025-02-25 18:55:30 -06:00
1238b9d8cd
This will avoid a ninja-build from picking up a config.h generated by the autotools build (in the root build directory). Picking up the wrong config.h may lead to all kinds of subtle issues if the autotools run was done with different options than the cmake run.
136 lines
4.7 KiB
C++
136 lines
4.7 KiB
C++
/********************************************************************\
|
|
* qof-string-cache.c -- QOF string cache functions *
|
|
* Copyright (C) 1997 Robin D. Clark *
|
|
* Copyright (C) 1997-2001,2004 Linas Vepstas <linas@linas.org> *
|
|
* Copyright 2006 Neil Williams <linux@codehelp.co.uk> *
|
|
* *
|
|
* This program is free software; you can redistribute it and/or *
|
|
* modify it under the terms of the GNU General Public License as *
|
|
* published by the Free Software Foundation; either version 2 of *
|
|
* the License, or (at your option) any later version. *
|
|
* *
|
|
* This program 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 General Public License for more details. *
|
|
* *
|
|
* You should have received a copy of the GNU General Public License*
|
|
* along with this program; if not, contact: *
|
|
* *
|
|
* Free Software Foundation Voice: +1-617-542-5942 *
|
|
* 51 Franklin Street, Fifth Floor Fax: +1-617-542-2652 *
|
|
* Boston, MA 02110-1301, USA gnu@gnu.org *
|
|
* *
|
|
* Author: Rob Clark (rclark@cs.hmc.edu) *
|
|
* Author: Linas Vepstas (linas@linas.org) *
|
|
* Author: Phil Longstaff (phil.longstaff@yahoo.ca) *
|
|
\********************************************************************/
|
|
|
|
extern "C"
|
|
{
|
|
#include <config.h>
|
|
|
|
#include <ctype.h>
|
|
#include <glib.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include "qof.h"
|
|
}
|
|
|
|
/* Uncomment if you need to log anything.
|
|
static QofLogModule log_module = QOF_MOD_UTIL;
|
|
*/
|
|
/* =================================================================== */
|
|
/* The QOF string cache */
|
|
/* */
|
|
/* The cache is a GHashTable where a copy of the string is the key, */
|
|
/* and a ref count is the value */
|
|
/* =================================================================== */
|
|
|
|
static GHashTable* qof_string_cache = NULL;
|
|
|
|
static GHashTable*
|
|
qof_get_string_cache(void)
|
|
{
|
|
if (!qof_string_cache)
|
|
{
|
|
qof_string_cache = g_hash_table_new_full(
|
|
g_str_hash, /* hash_func */
|
|
g_str_equal, /* key_equal_func */
|
|
g_free, /* key_destroy_func */
|
|
g_free); /* value_destroy_func */
|
|
}
|
|
return qof_string_cache;
|
|
}
|
|
|
|
void
|
|
qof_string_cache_init(void)
|
|
{
|
|
(void)qof_get_string_cache();
|
|
}
|
|
|
|
void
|
|
qof_string_cache_destroy (void)
|
|
{
|
|
if (qof_string_cache)
|
|
{
|
|
g_hash_table_destroy(qof_string_cache);
|
|
}
|
|
qof_string_cache = NULL;
|
|
}
|
|
|
|
/* If the key exists in the cache, check the refcount. If 1, just
|
|
* remove the key. Otherwise, decrement the refcount */
|
|
void
|
|
qof_string_cache_remove(gconstpointer key)
|
|
{
|
|
if (key)
|
|
{
|
|
GHashTable* cache = qof_get_string_cache();
|
|
gpointer value;
|
|
gpointer cache_key;
|
|
if (g_hash_table_lookup_extended(cache, key, &cache_key, &value))
|
|
{
|
|
guint* refcount = (guint*)value;
|
|
if (*refcount == 1)
|
|
{
|
|
g_hash_table_remove(cache, key);
|
|
}
|
|
else
|
|
{
|
|
--(*refcount);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* If the key exists in the cache, increment the refcount. Otherwise,
|
|
* add it with a refcount of 1. */
|
|
gpointer
|
|
qof_string_cache_insert(gconstpointer key)
|
|
{
|
|
if (key)
|
|
{
|
|
GHashTable* cache = qof_get_string_cache();
|
|
gpointer value;
|
|
gpointer cache_key;
|
|
if (g_hash_table_lookup_extended(cache, key, &cache_key, &value))
|
|
{
|
|
guint* refcount = (guint*)value;
|
|
++(*refcount);
|
|
return cache_key;
|
|
}
|
|
else
|
|
{
|
|
gpointer new_key = g_strdup(static_cast<const char*>(key));
|
|
guint* refcount = static_cast<unsigned int*>(g_malloc(sizeof(guint)));
|
|
*refcount = 1;
|
|
g_hash_table_insert(cache, new_key, refcount);
|
|
return new_key;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/* ************************ END OF FILE ***************************** */
|