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/*
* libmowgli: A collection of useful routines for programming.
* module.h: Loadable modules.
*
* Copyright (c) 2007, 2014 William Pitcock <william@dereferenced.org>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice is present in all copies.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "mowgli.h"
static mowgli_patricia_t *mowgli_interface_dict = NULL;
static mowgli_mutex_t mowgli_interface_lock;
void
mowgli_interface_bootstrap(void)
{
mowgli_interface_dict = mowgli_patricia_create(NULL);
mowgli_mutex_init(&mowgli_interface_lock);
}
void
mowgli_interface_register(mowgli_interface_t *iface)
{
mowgli_interface_base_t *base_iface = iface;
mowgli_mutex_lock(&mowgli_interface_lock);
mowgli_patricia_add(mowgli_interface_dict, base_iface->id, iface);
mowgli_mutex_unlock(&mowgli_interface_lock);
}
void
mowgli_interface_unregister(mowgli_interface_t *iface)
{
mowgli_interface_base_t *base_iface = iface;
mowgli_mutex_lock(&mowgli_interface_lock);
mowgli_patricia_delete(mowgli_interface_dict, base_iface->id);
mowgli_mutex_unlock(&mowgli_interface_lock);
}
mowgli_interface_t *
mowgli_interface_get(const char *id, uint32_t abirev)
{
mowgli_interface_base_t *base_iface;
mowgli_mutex_lock(&mowgli_interface_lock);
base_iface = mowgli_patricia_retrieve(mowgli_interface_dict, id);
if (base_iface->abirev != abirev)
{
mowgli_log("requested interface %s, abi mismatch %d != %d", id, abirev, base_iface->abirev);
base_iface = NULL;
}
mowgli_mutex_unlock(&mowgli_interface_lock);
return base_iface;
}
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