4 # Copyright (C) 2017 Mentor Graphics Development (Deutschland) GmbH
6 # Licensed under the Apache License, Version 2.0 (the "License");
7 # you may not use this file except in compliance with the License.
8 # You may obtain a copy of the License at
10 # http://www.apache.org/licenses/LICENSE-2.0
12 # Unless required by applicable law or agreed to in writing, software
13 # distributed under the License is distributed on an "AS IS" BASIS,
14 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 # See the License for the specific language governing permissions and
16 # limitations under the License.
28 OUT.write('\n'.join(args))
31 def emit_func_impl(api, f):
32 args = f.get('args', [])
34 p(' json_object *jreq = afb_req_json(req);', '')
36 arg['jtype'] = arg.get('jtype', arg['type']) # add jtype default
37 p(' json_object *j_%(name)s = nullptr;' % arg,
38 ' if (! json_object_object_get_ex(jreq, "%(name)s", &j_%(name)s)) {' % arg,
39 ' afb_req_fail(req, "failed", "Need %(type)s argument %(name)s");' % arg,
42 ' %(type)s a_%(name)s = json_object_get_%(jtype)s(j_%(name)s);' % arg, '')
43 p(' auto ret = %(api)s' % api + '%(name)s(' % f + ', '.join(map(lambda x: 'a_' + x['name'], args)) + ');')
44 p(' if (ret.is_err()) {',
45 ' afb_req_fail(req, "failed", ret.unwrap_err());',
48 p(' afb_req_success(req, ret.unwrap(), "success");')
50 def emit_func(api, f):
51 p('void %(impl_name)s(afb_req req) noexcept {' % f)
52 p(' std::lock_guard<std::mutex> guard(binding_m);')
53 p(' if (g_afb_instance == nullptr) {',
54 ' afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");',
57 ' try {', ' // BEGIN impl')
58 emit_func_impl(api, f)
60 ' } catch (std::exception &e) {',
61 ' afb_req_fail_f(req, "failed", "Uncaught exception while calling %(name)s: %%s", e.what());' % f,
66 def emit_afb_verbs(api):
67 p('const struct afb_verb_v2 %(name)s_verbs[] = {' % api)
68 for f in api['functions']:
69 p(' { "%(name)s", %(impl_name)s, nullptr, nullptr, AFB_SESSION_NONE },' % f)
72 def emit_binding(api):
74 for func in api['functions']:
76 p('} // namespace', '')
79 def generate_names(api):
80 for f in api['functions']:
81 f['impl_name'] = '%s_%s_thunk' % (api['name'], f['name'])
83 def emit_afb_api(api):
84 p('#include "result.hpp"', '')
85 p('#include <json-c/json.h>', '')
86 p('namespace wm {', '')
88 p('struct binding_api {')
89 p(' typedef wm::result<json_object *> result_type;')
90 p(' struct wm::App *app;')
91 p(' void send_event(char const *evname, char const *label);')
92 for f in api['functions']:
93 p(' result_type %(name)s(' % f + ', '.join(map(lambda x: '%(type)s %(name)s' % x, f.get('args', []))) + ');')
95 p('} // namespace wm')
97 # names must always be valid in c and unique for each function (that is its arguments)
98 # arguments will be looked up from json request, range checking needs to be implemented
99 # by the actual API call
102 'api': 'g_afb_instance->app.api.', # where are our API functions
105 'name': 'request_surface',
106 #'return_type': 'int', # Or do they return all just some json?
107 'args': [ # describes the functions arguments, and their names as found in the json request
108 { 'name': 'drawing_name', 'type': 'char const*', 'jtype': 'string' },
112 'name': 'activate_surface',
114 { 'name': 'drawing_name', 'type': 'char const*', 'jtype': 'string' },
118 'name': 'deactivate_surface',
120 { 'name': 'drawing_name', 'type': 'char const*', 'jtype': 'string' },
126 { 'name': 'drawing_name', 'type': 'char const*', 'jtype': 'string' },
129 { 'name': 'list_drawing_names', },
131 { 'name': 'debug_status', },
132 { 'name': 'debug_layers', },
133 { 'name': 'debug_surfaces', },
134 { 'name': 'debug_terminate' },
139 with open('afb_binding_glue.inl', 'w') as out:
141 p('// This file was generated, do not edit', '')
144 with open('afb_binding_api.hpp', 'w') as out:
146 p('// This file was generated, do not edit', '')
149 __name__ == '__main__' and main()