Files
libgtop/lib/backend.c
Martin Baulig e2e5c3a1cc New type. (glibtop_backend_module): New private type.
2000-01-12  Martin Baulig  <martin@home-of-linux.org>

	* include/glibtop/backend.h (glibtop_backend_entry): New type.
	(glibtop_backend_module): New private type.

	* lib/backend.c (glibtop_register_backend): This now takes a
	`glibtop_backend_entry' argument, not a `glibtop_backend_info' one.
	(glibtop_backend_by_id): Return a `glibtop_backend_entry' type,
	not a `glibtop_backend_info' one.
	(glibtop_backend_by_name): Likewise.

	* lib/init-backends.c: If we have libxml, read all `.backend' files
	in $(LIBGTOP_BACKEND_DIR), XML parse them and register them via
	`glibtop_backend_register'. This builds a list of all currently
	supported backends without actually loading them into memory.

	* lib/open-backend.c (glibtop_open_backend_l): GModule load the
	backend if it's not already in memory.
2000-01-12 20:37:21 +00:00

94 lines
2.4 KiB
C

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* $Id$ */
/* Copyright (C) 1998-99 Martin Baulig
This file is part of LibGTop 1.0.
Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
LibGTop 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.
LibGTop 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 LibGTop; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include <glibtop.h>
#include <glibtop/global.h>
#include <glibtop/xmalloc.h>
#include <glibtop/backend.h>
static GHashTable *_glibtop_backend_list = NULL;
static long _glibtop_backend_nr = 0;
long
glibtop_register_backend (glibtop_backend_entry *entry)
{
long id;
if (!_glibtop_backend_list)
_glibtop_backend_list = g_hash_table_new (NULL, NULL);
id = ++_glibtop_backend_nr;
g_hash_table_insert (_glibtop_backend_list,
GINT_TO_POINTER (id),
entry);
return id;
}
void
glibtop_unregister_backend (long id)
{
g_hash_table_remove (_glibtop_backend_list,
GINT_TO_POINTER (id));
}
glibtop_backend_entry *
glibtop_backend_by_id (long id)
{
return g_hash_table_lookup (_glibtop_backend_list,
GINT_TO_POINTER (id));
}
typedef struct {
const char *backend_name;
glibtop_backend_entry *entry;
} _find_by_name_param_t;
static void
find_by_name (gpointer key, gpointer value, gpointer user_data)
{
_find_by_name_param_t *param = (_find_by_name_param_t *) user_data;
glibtop_backend_entry *entry = (glibtop_backend_entry *) value;
if (!entry || !entry->name || param->entry)
return;
if (!strcmp (entry->name, param->backend_name))
param->entry = entry;
}
glibtop_backend_entry *
glibtop_backend_by_name (const char *backend_name)
{
_find_by_name_param_t param = { backend_name, NULL };
g_hash_table_foreach (_glibtop_backend_list,
find_by_name, &param);
return param.entry;
}