-#!/usr/bin/python3
-
-#
-# Copyright (c) 2017 TOYOTA MOTOR CORPORATION
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-import sys
-
-OUT = sys.stdout
-
-def set_output(f):
- global OUT
- OUT = f
-
-def p(*args):
- OUT.write('\n'.join(args))
- OUT.write('\n')
-
-def emit_func_impl(api, f):
- args = f.get('args', [])
- func_name = f.get('name', [])
- if "wm_subscribe" == func_name:
- p(' json_object *jreq = afb_req_json(req);')
- p(' json_object *j = nullptr;')
- p(' if (! json_object_object_get_ex(jreq, "event", &j)) {')
- p(' afb_req_fail(req, "failed", "Need char const* argument event");')
- p(' return;')
- p(' }')
- p(' int event_type = json_object_get_int(j);')
- p(' const char *event_name = g_afb_instance->app.kListEventName[event_type];')
- p(' struct afb_event event = g_afb_instance->app.map_afb_event[event_name];')
- p(' int ret = afb_req_subscribe(req, event);')
- p(' if (ret) {',
- ' afb_req_fail(req, "failed", "Error: afb_req_subscribe()");',
- ' return;',
- ' }')
- p(' afb_req_success(req, NULL, "success");')
-
- else:
- if len(args) > 0:
- p(' json_object *jreq = afb_req_json(req);', '')
- for arg in args:
- arg['jtype'] = arg.get('jtype', arg['type']) # add jtype default
- p(' json_object *j_%(name)s = nullptr;' % arg,
- ' if (! json_object_object_get_ex(jreq, "%(name)s", &j_%(name)s)) {' % arg,
- ' afb_req_fail(req, "failed", "Need %(type)s argument %(name)s");' % arg,
- ' return;',
- ' }',
- ' %(type)s a_%(name)s = json_object_get_%(jtype)s(j_%(name)s);' % arg, '')
- p(' auto ret = %(api)s' % api + '%(name)s(' % f + ', '.join(map(lambda x: 'a_' + x['name'], args)) + ');')
- p(' if (ret.is_err()) {',
- ' afb_req_fail(req, "failed", ret.unwrap_err());',
- ' return;',
- ' }', '')
- p(' afb_req_success(req, ret.unwrap(), "success");')
-
-def emit_func(api, f):
- p('void %(impl_name)s(afb_req req) noexcept {' % f)
- p(' std::lock_guard<std::mutex> guard(binding_m);')
- p(' #ifdef ST')
- p(' ST();')
- p(' #endif')
- p(' if (g_afb_instance == nullptr) {',
- ' afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");',
- ' return;',
- ' }', '',
- ' try {', ' // BEGIN impl')
- emit_func_impl(api, f)
- p(' // END impl',
- ' } catch (std::exception &e) {',
- ' afb_req_fail_f(req, "failed", "Uncaught exception while calling %(name)s: %%s", e.what());' % f,
- ' return;',
- ' }', '')
- p('}', '')
-
-def emit_afb_verbs(api):
- p('const struct afb_verb_v2 %(name)s_verbs[] = {' % api)
- for f in api['functions']:
- p(' { "%(name)s", %(impl_name)s, nullptr, nullptr, AFB_SESSION_NONE },' % f)
- p(' {}', '};')
-
-def emit_binding(api):
- p('namespace {')
- p('std::mutex binding_m;', '')
- for func in api['functions']:
- emit_func(api, func)
- p('} // namespace', '')
- emit_afb_verbs(api)
-
-def generate_names(api):
- for f in api['functions']:
- f['impl_name'] = '%s_%s_thunk' % (api['name'], f['name'])
-
-def emit_afb_api(api):
- p('#include "result.hpp"', '')
- p('#include <json-c/json.h>', '')
- p('namespace wm {', '')
- p('struct App;', '')
- p('struct binding_api {')
- p(' typedef wm::result<json_object *> result_type;')
- p(' struct wm::App *app;')
- p(' void send_event(char const *evname, char const *label);')
- p(' void send_event(char const *evname, char const *label, char const *area);')
- for f in api['functions']:
- p(' result_type %(name)s(' % f + ', '.join(map(lambda x: '%(type)s %(name)s' % x, f.get('args', []))) + ');')
- p('};', '')
- p('} // namespace wm', '')
-
-# names must always be valid in c and unique for each function (that is its arguments)
-# arguments will be looked up from json request, range checking needs to be implemented
-# by the actual API call
-API = {
- 'name': 'windowmanager',
- 'api': 'g_afb_instance->app.api.', # where are our API functions
- 'functions': [
- {
- 'name': 'requestsurface',
- #'return_type': 'int', # Or do they return all just some json?
- 'args': [ # describes the functions arguments, and their names as found in the json request
- { 'name': 'drawing_name', 'type': 'char const*', 'jtype': 'string' },
- ],
- },
- {
- 'name': 'requestsurfacexdg',
- 'args': [
- { 'name': 'drawing_name', 'type': 'char const*', 'jtype': 'string' },
- { 'name': 'ivi_id', 'type': 'char const*', 'jtype': 'string' },
- ],
- },
- {
- 'name': 'activatesurface',
- 'args': [
- { 'name': 'drawing_name', 'type': 'char const*', 'jtype': 'string' },
- { 'name': 'drawing_area', 'type': 'char const*', 'jtype': 'string' },
- ],
- },
- {
- 'name': 'deactivatesurface',
- 'args': [
- { 'name': 'drawing_name', 'type': 'char const*', 'jtype': 'string' },
- ],
- },
- {
- 'name': 'enddraw',
- 'args': [
- { 'name': 'drawing_name', 'type': 'char const*', 'jtype': 'string' },
- ],
- },
- { 'name': 'wm_subscribe', },
-
- { 'name': 'list_drawing_names', },
- { 'name': 'ping' },
-
- { 'name': 'debug_status', },
- { 'name': 'debug_layers', },
- { 'name': 'debug_surfaces', },
- { 'name': 'debug_terminate' },
- ]
-}
-
-def main():
- with open('afb_binding_glue.inl', 'w') as out:
- set_output(out)
- p('// This file was generated, do not edit', '')
- generate_names(API)
- emit_binding(API)
- with open('afb_binding_api.hpp', 'w') as out:
- set_output(out)
- p('// This file was generated, do not edit', '')
- emit_afb_api(API)
-
-__name__ == '__main__' and main()
Code Review / apps / agl-service-windowmanager-2017.git / commitdiff