1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
/*
* Copyright (C) 2017 Mentor Graphics Development (Deutschland) GmbH
*
* 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.
*/
#include <unistd.h>
#include "app.hpp"
#include "json_helper.hpp"
#include "util.hpp"
#include "wayland.hpp"
#include <algorithm>
#include <mutex>
#include <json.h>
extern "C" {
#include <afb/afb-binding.h>
#include <systemd/sd-event.h>
}
namespace {
struct afb_instance {
std::unique_ptr<wl::display> display;
wm::App app;
afb_instance() : display{new wl::display}, app{this->display.get()} {}
int init();
};
struct afb_instance *g_afb_instance;
int afb_instance::init() {
return this->app.init();
}
int display_event_callback(sd_event_source *evs, int /*fd*/, uint32_t events,
void * /*data*/) {
ST();
if ((events & EPOLLHUP) != 0) {
logerror("The compositor hung up, dying now.");
delete g_afb_instance;
g_afb_instance = nullptr;
goto error;
}
if ((events & EPOLLIN) != 0u) {
{
STN(display_read_events);
g_afb_instance->app.display->read_events();
g_afb_instance->app.set_pending_events();
}
{
// We want do dispatch pending wayland events from within
// the API context
STN(winman_ping_api_call);
afb_service_call("windowmanager", "ping", json_object_new_object(),
[](void *c, int st, json_object *j) {
STN(winman_ping_api_call_return);
},
nullptr);
}
}
return 0;
error:
sd_event_source_unref(evs);
if (getenv("WINMAN_EXIT_ON_HANGUP") != nullptr) {
exit(1);
}
return -1;
}
// _ _ _ _ _ _ _ ____
// | |__ (_)_ __ __| (_)_ __ __ _ (_)_ __ (_) |_ / /\ \
// | '_ \| | '_ \ / _` | | '_ \ / _` | | | '_ \| | __| | | |
// | |_) | | | | | (_| | | | | | (_| | | | | | | | |_| | | |
// |_.__/|_|_| |_|\__,_|_|_| |_|\__, |___|_|_| |_|_|\__| | | |
// |___/_____| \_\/_/
int binding_init_() {
lognotice("WinMan ver. %s", WINMAN_VERSION_STRING);
if (g_afb_instance != nullptr) {
logerror("Wayland context already initialized?");
return 0;
}
if (getenv("XDG_RUNTIME_DIR") == nullptr) {
logerror("Environment variable XDG_RUNTIME_DIR not set");
goto error;
}
{
// wait until wayland compositor starts up.
int cnt = 0;
g_afb_instance = new afb_instance;
while (!g_afb_instance->display->ok()) {
cnt++;
if (20 <= cnt) {
logerror("Could not connect to compositor");
goto error;
}
logerror("Wait to start weston ...");
sleep(1);
delete g_afb_instance;
g_afb_instance = new afb_instance;
}
}
if (g_afb_instance->init() == -1) {
logerror("Could not connect to compositor");
goto error;
}
{
int ret = sd_event_add_io(afb_daemon_get_event_loop(), nullptr,
g_afb_instance->display->get_fd(), EPOLLIN,
display_event_callback, g_afb_instance);
if (ret < 0) {
logerror("Could not initialize afb_instance event handler: %d", -ret);
goto error;
}
}
atexit([] { delete g_afb_instance; });
return 0;
error:
delete g_afb_instance;
g_afb_instance = nullptr;
return -1;
}
int binding_init() noexcept {
try {
return binding_init_();
} catch (std::exception &e) {
logerror("Uncaught exception in binding_init(): %s", e.what());
}
return -1;
}
} // namespace
#include "afb_binding_glue.inl"
namespace wm {
void binding_api::send_event(char const *evname, char const *label) {
logdebug("%s: %s(%s)", __func__, evname, label);
json_object *j = json_object_new_object();
json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
int ret = afb_event_push(g_afb_instance->app.map_afb_event[evname], j);
if (ret != 0) {
logdebug("afb_event_push failed: %m");
}
}
void binding_api::send_event(char const *evname, char const *label, char const *area) {
logdebug("%s: %s(%s, %s)", __func__, evname, label, area);
json_object *j = json_object_new_object();
json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
json_object_object_add(j, kKeyDrawingArea, json_object_new_string(area));
int ret = afb_event_push(g_afb_instance->app.map_afb_event[evname], j);
if (ret != 0) {
logdebug("afb_event_push failed: %m");
}
}
} // namespace wm
extern "C" const struct afb_binding_v2 afbBindingV2 = {
"windowmanager", nullptr, nullptr, windowmanager_verbs, nullptr, binding_init, nullptr, 0};
|
