mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-27 07:31:35 +00:00
91 lines
2.0 KiB
C++
91 lines
2.0 KiB
C++
|
/* Callback management.
|
||
|
|
Copyright (C) 2014 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
This file is part of GCC.
|
||
|
|
|
||
|
|
GCC 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 3, or (at your option) any later
|
||
|
|
version.
|
||
|
|
|
||
|
|
GCC 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 GCC; see the file COPYING3. If not see
|
||
|
|
<http://www.gnu.org/licenses/>. */
|
||
|
|
|
||
|
|
#include <cc1plugin-config.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include "callbacks.hh"
|
||
|
|
#include "libiberty.h"
|
||
|
|
|
||
|
|
// An entry in the hash table.
|
||
|
|
struct method
|
||
|
|
{
|
||
|
|
const char *name;
|
||
|
|
cc1_plugin::callback_ftype *func;
|
||
|
|
};
|
||
|
|
|
||
|
|
// Hash function for struct method.
|
||
|
|
static hashval_t
|
||
|
|
hash_method (const void *a)
|
||
|
|
{
|
||
|
|
const struct method *m = (const struct method *) a;
|
||
|
|
|
||
|
|
return htab_hash_string (m->name);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Equality function for struct method.
|
||
|
|
static int
|
||
|
|
eq_method (const void *a, const void *b)
|
||
|
|
{
|
||
|
|
const struct method *ma = (const struct method *) a;
|
||
|
|
const struct method *mb = (const struct method *) b;
|
||
|
|
|
||
|
|
return strcmp (ma->name, mb->name) == 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
cc1_plugin::callbacks::callbacks ()
|
||
|
|
: m_registry (htab_create_alloc (10, hash_method, eq_method,
|
||
|
|
free, xcalloc, free))
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
cc1_plugin::callbacks::~callbacks ()
|
||
|
|
{
|
||
|
|
htab_delete (m_registry);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
cc1_plugin::callbacks::add_callback (const char *name,
|
||
|
|
cc1_plugin::callback_ftype *func)
|
||
|
|
{
|
||
|
|
method m;
|
||
|
|
method **slot;
|
||
|
|
|
||
|
|
m.name = name;
|
||
|
|
m.func = func;
|
||
|
|
|
||
|
|
slot = (method **) htab_find_slot (m_registry, &m, INSERT);
|
||
|
|
*slot = XNEW (method);
|
||
|
|
**slot = m;
|
||
|
|
}
|
||
|
|
|
||
|
|
cc1_plugin::callback_ftype *
|
||
|
|
cc1_plugin::callbacks::find_callback (const char *name)
|
||
|
|
{
|
||
|
|
method m, *found;
|
||
|
|
|
||
|
|
m.name = name;
|
||
|
|
|
||
|
|
found = (method *) htab_find (m_registry, &m);
|
||
|
|
if (found == NULL)
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
return found->func;
|
||
|
|
}
|