]>
Commit | Line | Data |
---|---|---|
06d64c62 MR |
1 | # |
2 | # QAPI visitor generator | |
3 | # | |
4 | # Copyright IBM, Corp. 2011 | |
5 | # | |
6 | # Authors: | |
7 | # Anthony Liguori <aliguori@us.ibm.com> | |
8 | # Michael Roth <mdroth@linux.vnet.ibm.com> | |
9 | # | |
10 | # This work is licensed under the terms of the GNU GPLv2. | |
11 | # See the COPYING.LIB file in the top-level directory. | |
12 | ||
13 | from ordereddict import OrderedDict | |
14 | from qapi import * | |
15 | import sys | |
16 | import os | |
17 | import getopt | |
18 | import errno | |
19 | ||
20 | def generate_visit_struct_body(field_prefix, members): | |
21 | ret = "" | |
22 | if len(field_prefix): | |
23 | field_prefix = field_prefix + "." | |
24 | for argname, argentry, optional, structured in parse_args(members): | |
25 | if optional: | |
26 | ret += mcgen(''' | |
27 | visit_start_optional(m, (obj && *obj) ? &(*obj)->%(c_prefix)shas_%(c_name)s : NULL, "%(name)s", errp); | |
28 | if ((*obj)->%(prefix)shas_%(c_name)s) { | |
29 | ''', | |
30 | c_prefix=c_var(field_prefix), prefix=field_prefix, | |
31 | c_name=c_var(argname), name=argname) | |
32 | push_indent() | |
33 | ||
34 | if structured: | |
35 | ret += mcgen(''' | |
36 | visit_start_struct(m, NULL, "", "%(name)s", 0, errp); | |
37 | ''', | |
38 | name=argname) | |
39 | ret += generate_visit_struct_body(field_prefix + argname, argentry) | |
40 | ret += mcgen(''' | |
41 | visit_end_struct(m, errp); | |
42 | ''') | |
43 | else: | |
44 | ret += mcgen(''' | |
45 | visit_type_%(type)s(m, (obj && *obj) ? &(*obj)->%(c_prefix)s%(c_name)s : NULL, "%(name)s", errp); | |
46 | ''', | |
47 | c_prefix=c_var(field_prefix), prefix=field_prefix, | |
48 | type=type_name(argentry), c_name=c_var(argname), | |
49 | name=argname) | |
50 | ||
51 | if optional: | |
52 | pop_indent() | |
53 | ret += mcgen(''' | |
54 | } | |
55 | visit_end_optional(m, errp); | |
56 | ''') | |
57 | return ret | |
58 | ||
59 | def generate_visit_struct(name, members): | |
60 | ret = mcgen(''' | |
61 | ||
62 | void visit_type_%(name)s(Visitor *m, %(name)s ** obj, const char *name, Error **errp) | |
63 | { | |
64 | visit_start_struct(m, (void **)obj, "%(name)s", name, sizeof(%(name)s), errp); | |
65 | ''', | |
66 | name=name) | |
67 | push_indent() | |
68 | ret += generate_visit_struct_body("", members) | |
69 | pop_indent() | |
70 | ||
71 | ret += mcgen(''' | |
72 | visit_end_struct(m, errp); | |
73 | } | |
74 | ''') | |
75 | return ret | |
76 | ||
77 | def generate_visit_list(name, members): | |
78 | return mcgen(''' | |
79 | ||
80 | void visit_type_%(name)sList(Visitor *m, %(name)sList ** obj, const char *name, Error **errp) | |
81 | { | |
82 | GenericList *i; | |
83 | ||
84 | visit_start_list(m, name, errp); | |
85 | ||
86 | for (i = visit_next_list(m, (GenericList **)obj, errp); i; i = visit_next_list(m, &i, errp)) { | |
87 | %(name)sList *native_i = (%(name)sList *)i; | |
88 | visit_type_%(name)s(m, &native_i->value, NULL, errp); | |
89 | } | |
90 | ||
91 | visit_end_list(m, errp); | |
92 | } | |
93 | ''', | |
94 | name=name) | |
95 | ||
96 | def generate_visit_enum(name, members): | |
97 | return mcgen(''' | |
98 | ||
99 | void visit_type_%(name)s(Visitor *m, %(name)s * obj, const char *name, Error **errp) | |
100 | { | |
101 | visit_type_enum(m, (int *)obj, %(name)s_lookup, "%(name)s", name, errp); | |
102 | } | |
103 | ''', | |
104 | name=name) | |
105 | ||
106 | def generate_visit_union(name, members): | |
107 | ret = generate_visit_enum('%sKind' % name, members.keys()) | |
108 | ||
109 | ret += mcgen(''' | |
110 | ||
111 | void visit_type_%(name)s(Visitor *m, %(name)s ** obj, const char *name, Error **errp) | |
112 | { | |
113 | } | |
114 | ''', | |
115 | name=name) | |
116 | ||
117 | return ret | |
118 | ||
119 | def generate_declaration(name, members, genlist=True): | |
120 | ret = mcgen(''' | |
121 | ||
122 | void visit_type_%(name)s(Visitor *m, %(name)s ** obj, const char *name, Error **errp); | |
123 | ''', | |
124 | name=name) | |
125 | ||
126 | if genlist: | |
127 | ret += mcgen(''' | |
128 | void visit_type_%(name)sList(Visitor *m, %(name)sList ** obj, const char *name, Error **errp); | |
129 | ''', | |
130 | name=name) | |
131 | ||
132 | return ret | |
133 | ||
134 | def generate_decl_enum(name, members, genlist=True): | |
135 | return mcgen(''' | |
136 | ||
137 | void visit_type_%(name)s(Visitor *m, %(name)s * obj, const char *name, Error **errp); | |
138 | ''', | |
139 | name=name) | |
140 | ||
141 | try: | |
142 | opts, args = getopt.gnu_getopt(sys.argv[1:], "p:o:", ["prefix=", "output-dir="]) | |
143 | except getopt.GetoptError, err: | |
144 | print str(err) | |
145 | sys.exit(1) | |
146 | ||
147 | output_dir = "" | |
148 | prefix = "" | |
149 | c_file = 'qapi-visit.c' | |
150 | h_file = 'qapi-visit.h' | |
151 | ||
152 | for o, a in opts: | |
153 | if o in ("-p", "--prefix"): | |
154 | prefix = a | |
155 | elif o in ("-o", "--output-dir"): | |
156 | output_dir = a + "/" | |
157 | ||
158 | c_file = output_dir + prefix + c_file | |
159 | h_file = output_dir + prefix + h_file | |
160 | ||
161 | try: | |
162 | os.makedirs(output_dir) | |
163 | except os.error, e: | |
164 | if e.errno != errno.EEXIST: | |
165 | raise | |
166 | ||
167 | fdef = open(c_file, 'w') | |
168 | fdecl = open(h_file, 'w') | |
169 | ||
170 | fdef.write(mcgen(''' | |
171 | /* THIS FILE IS AUTOMATICALLY GENERATED, DO NOT MODIFY */ | |
172 | ||
173 | /* | |
174 | * schema-defined QAPI visitor functions | |
175 | * | |
176 | * Copyright IBM, Corp. 2011 | |
177 | * | |
178 | * Authors: | |
179 | * Anthony Liguori <aliguori@us.ibm.com> | |
180 | * | |
181 | * This work is licensed under the terms of the GNU LGPL, version 2.1 or later. | |
182 | * See the COPYING.LIB file in the top-level directory. | |
183 | * | |
184 | */ | |
185 | ||
186 | #include "%(header)s" | |
187 | ''', | |
188 | header=basename(h_file))) | |
189 | ||
190 | fdecl.write(mcgen(''' | |
191 | /* THIS FILE IS AUTOMATICALLY GENERATED, DO NOT MODIFY */ | |
192 | ||
193 | /* | |
194 | * schema-defined QAPI visitor function | |
195 | * | |
196 | * Copyright IBM, Corp. 2011 | |
197 | * | |
198 | * Authors: | |
199 | * Anthony Liguori <aliguori@us.ibm.com> | |
200 | * | |
201 | * This work is licensed under the terms of the GNU LGPL, version 2.1 or later. | |
202 | * See the COPYING.LIB file in the top-level directory. | |
203 | * | |
204 | */ | |
205 | ||
206 | #ifndef %(guard)s | |
207 | #define %(guard)s | |
208 | ||
209 | #include "qapi/qapi-visit-core.h" | |
210 | #include "%(prefix)sqapi-types.h" | |
211 | ''', | |
212 | prefix=prefix, guard=guardname(h_file))) | |
213 | ||
214 | exprs = parse_schema(sys.stdin) | |
215 | ||
216 | for expr in exprs: | |
217 | if expr.has_key('type'): | |
218 | ret = generate_visit_struct(expr['type'], expr['data']) | |
219 | ret += generate_visit_list(expr['type'], expr['data']) | |
220 | fdef.write(ret) | |
221 | ||
222 | ret = generate_declaration(expr['type'], expr['data']) | |
223 | fdecl.write(ret) | |
224 | elif expr.has_key('union'): | |
225 | ret = generate_visit_union(expr['union'], expr['data']) | |
226 | fdef.write(ret) | |
227 | ||
228 | ret = generate_decl_enum('%sKind' % expr['union'], expr['data'].keys()) | |
229 | ret += generate_declaration(expr['union'], expr['data']) | |
230 | fdecl.write(ret) | |
231 | elif expr.has_key('enum'): | |
232 | ret = generate_visit_enum(expr['enum'], expr['data']) | |
233 | fdef.write(ret) | |
234 | ||
235 | ret = generate_decl_enum(expr['enum'], expr['data']) | |
236 | fdecl.write(ret) | |
237 | ||
238 | fdecl.write(''' | |
239 | #endif | |
240 | ''') | |
241 | ||
242 | fdecl.flush() | |
243 | fdecl.close() | |
244 | ||
245 | fdef.flush() | |
246 | fdef.close() |