1 | /* |
2 | * Copyright (c) 2014 Red Hat, Inc. |
3 | * |
4 | * Permission is hereby granted, free of charge, to any person obtaining |
5 | * a copy of this software and associated documentation files (the |
6 | * "Software"), to deal in the Software without restriction, including |
7 | * without limitation the rights to use, copy, modify, merge, publish, |
8 | * distribute, sublicense, and/or sell copies of the Software, and to |
9 | * permit persons to whom the Software is furnished to do so, subject to |
10 | * the following conditions: |
11 | * |
12 | * The above copyright notice and this permission notice (including the |
13 | * next paragraph) shall be included in all copies or substantial |
14 | * portions of the Software. |
15 | * |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
17 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
18 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
19 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
20 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
21 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
22 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
23 | * SOFTWARE. |
24 | */ |
25 | |
26 | #include <stdint.h> |
27 | #include <unistd.h> |
28 | |
29 | #include "wayland-server.h" |
30 | #include "wayland-client.h" |
31 | |
32 | /* info about a client on server side */ |
33 | struct client_info { |
34 | struct display *display; |
35 | struct wl_client *wl_client; |
36 | struct wl_listener destroy_listener; |
37 | const char *name; /* for debugging */ |
38 | |
39 | int pipe; |
40 | pid_t pid; |
41 | int exit_code; |
42 | |
43 | struct wl_list link; |
44 | void *data; /* for arbitrary use */ |
45 | }; |
46 | |
47 | struct display { |
48 | struct wl_display *wl_display; |
49 | struct wl_global *test_global; |
50 | |
51 | struct wl_list clients; |
52 | uint32_t clients_no; |
53 | uint32_t clients_terminated_no; |
54 | |
55 | /* list of clients waiting for display_resumed event */ |
56 | struct wl_list waiting_for_resume; |
57 | uint32_t wfr_num; |
58 | }; |
59 | |
60 | /* This is a helper structure for clients. |
61 | * Instead of calling wl_display_connect() and all the other stuff, |
62 | * client can use client_connect and it will return this structure |
63 | * filled. */ |
64 | struct client { |
65 | struct wl_display *wl_display; |
66 | struct test_compositor *tc; |
67 | |
68 | int display_stopped; |
69 | }; |
70 | |
71 | struct client *client_connect(void); |
72 | void client_disconnect(struct client *); |
73 | int stop_display(struct client *, int); |
74 | void noop_request(struct client *); |
75 | |
76 | /** |
77 | * Usual workflow: |
78 | * |
79 | * d = display_create(); |
80 | * |
81 | * wl_global_create(d->wl_display, ...); |
82 | * ... other setups ... |
83 | * |
84 | * client_create(d, client_main, data); |
85 | * client_create(d, client_main2, data); |
86 | * |
87 | * display_run(d); |
88 | * display_destroy(d); |
89 | */ |
90 | struct display *display_create(void); |
91 | void display_destroy(struct display *d); |
92 | void display_run(struct display *d); |
93 | |
94 | /* This function posts the display_resumed event to all waiting clients, |
95 | * so that after flushing events the clients will stop waiting and continue. |
96 | * |
97 | * (Calling `display_run` after this function will resume the display loop.) |
98 | */ |
99 | void display_post_resume_events(struct display *d); |
100 | /* After n clients called stop_display(..., n), the display |
101 | * is stopped and can process the code after display_run(). |
102 | * |
103 | * This function posts the display_resumed event to the waiting |
104 | * clients, so that the clients will stop waiting and continue; |
105 | * it then reruns the display. */ |
106 | void display_resume(struct display *d); |
107 | |
108 | |
109 | struct client_info *client_create_with_name(struct display *d, |
110 | void (*client_main)(void *data), |
111 | void *data, |
112 | const char *name); |
113 | #define client_create(d, c, data) client_create_with_name((d), (c), data, (#c)) |
114 | #define client_create_noarg(d, c) \ |
115 | client_create_with_name((d), (void(*)(void *)) (c), NULL, (#c)) |
116 | |