|
111
|
1 /* Callback management.
|
|
145
|
2 Copyright (C) 2014-2020 Free Software Foundation, Inc.
|
|
111
|
3
|
|
|
4 This file is part of GCC.
|
|
|
5
|
|
|
6 GCC is free software; you can redistribute it and/or modify it under
|
|
|
7 the terms of the GNU General Public License as published by the Free
|
|
|
8 Software Foundation; either version 3, or (at your option) any later
|
|
|
9 version.
|
|
|
10
|
|
|
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
|
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
14 for more details.
|
|
|
15
|
|
|
16 You should have received a copy of the GNU General Public License
|
|
|
17 along with GCC; see the file COPYING3. If not see
|
|
|
18 <http://www.gnu.org/licenses/>. */
|
|
|
19
|
|
|
20 #include <cc1plugin-config.h>
|
|
|
21 #include <string.h>
|
|
|
22 #include <stdlib.h>
|
|
|
23 #include "callbacks.hh"
|
|
|
24 #include "libiberty.h"
|
|
|
25
|
|
|
26 // An entry in the hash table.
|
|
|
27 struct method
|
|
|
28 {
|
|
|
29 const char *name;
|
|
|
30 cc1_plugin::callback_ftype *func;
|
|
|
31 };
|
|
|
32
|
|
|
33 // Hash function for struct method.
|
|
|
34 static hashval_t
|
|
|
35 hash_method (const void *a)
|
|
|
36 {
|
|
|
37 const struct method *m = (const struct method *) a;
|
|
|
38
|
|
|
39 return htab_hash_string (m->name);
|
|
|
40 }
|
|
|
41
|
|
|
42 // Equality function for struct method.
|
|
|
43 static int
|
|
|
44 eq_method (const void *a, const void *b)
|
|
|
45 {
|
|
|
46 const struct method *ma = (const struct method *) a;
|
|
|
47 const struct method *mb = (const struct method *) b;
|
|
|
48
|
|
|
49 return strcmp (ma->name, mb->name) == 0;
|
|
|
50 }
|
|
|
51
|
|
|
52 cc1_plugin::callbacks::callbacks ()
|
|
|
53 : m_registry (htab_create_alloc (10, hash_method, eq_method,
|
|
|
54 free, xcalloc, free))
|
|
|
55 {
|
|
|
56 }
|
|
|
57
|
|
|
58 cc1_plugin::callbacks::~callbacks ()
|
|
|
59 {
|
|
|
60 htab_delete (m_registry);
|
|
|
61 }
|
|
|
62
|
|
|
63 void
|
|
|
64 cc1_plugin::callbacks::add_callback (const char *name,
|
|
|
65 cc1_plugin::callback_ftype *func)
|
|
|
66 {
|
|
|
67 method m;
|
|
|
68 method **slot;
|
|
|
69
|
|
|
70 m.name = name;
|
|
|
71 m.func = func;
|
|
|
72
|
|
|
73 slot = (method **) htab_find_slot (m_registry, &m, INSERT);
|
|
|
74 *slot = XNEW (method);
|
|
|
75 **slot = m;
|
|
|
76 }
|
|
|
77
|
|
|
78 cc1_plugin::callback_ftype *
|
|
|
79 cc1_plugin::callbacks::find_callback (const char *name)
|
|
|
80 {
|
|
|
81 method m, *found;
|
|
|
82
|
|
|
83 m.name = name;
|
|
|
84
|
|
|
85 found = (method *) htab_find (m_registry, &m);
|
|
|
86 if (found == NULL)
|
|
|
87 return NULL;
|
|
|
88
|
|
|
89 return found->func;
|
|
|
90 }
|
