Commit | Line | Data |
---|---|---|
d42e7319 JB |
1 | /* |
2 | * Copyright © 2012 Collabora, Ltd. | |
3 | * | |
4 | * Permission to use, copy, modify, distribute, and sell this software and | |
5 | * its documentation for any purpose is hereby granted without fee, provided | |
6 | * that the above copyright notice appear in all copies and that both that | |
7 | * copyright notice and this permission notice appear in supporting | |
8 | * documentation, and that the name of the copyright holders not be used in | |
9 | * advertising or publicity pertaining to distribution of the software | |
10 | * without specific, written prior permission. The copyright holders make | |
11 | * no representations about the suitability of this software for any | |
12 | * purpose. It is provided "as is" without express or implied warranty. | |
13 | * | |
14 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS | |
15 | * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
16 | * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY | |
17 | * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER | |
18 | * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF | |
19 | * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN | |
20 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
21 | */ | |
22 | ||
23 | #include <stdint.h> | |
24 | #include <cstring> | |
25 | #include <unistd.h> | |
26 | ||
27 | #include "server_wlegl_handle.h" | |
28 | #include "wayland-android-server-protocol.h" | |
29 | ||
30 | static void | |
31 | add_fd(struct wl_client *client, struct wl_resource *resource, int32_t fd) | |
32 | { | |
33 | server_wlegl_handle *handle = server_wlegl_handle_from(resource); | |
34 | ||
35 | if (handle->fds.size >= handle->num_fds * sizeof(int)) { | |
36 | close(fd); | |
37 | wl_resource_post_error(&handle->resource, | |
38 | ANDROID_WLEGL_HANDLE_ERROR_TOO_MANY_FDS, | |
39 | "too many file descriptors"); | |
40 | return; | |
41 | } | |
42 | ||
43 | int *ptr = (int *)wl_array_add(&handle->fds, sizeof(int)); | |
44 | *ptr = fd; | |
45 | } | |
46 | ||
47 | static void | |
48 | destroy(struct wl_client *client, struct wl_resource *resource) | |
49 | { | |
50 | wl_resource_destroy(resource); | |
51 | } | |
52 | ||
53 | static const struct android_wlegl_handle_interface server_handle_impl = { | |
54 | add_fd, | |
55 | destroy | |
56 | }; | |
57 | ||
58 | static void | |
59 | server_wlegl_handle_dtor(struct wl_resource *resource) | |
60 | { | |
61 | server_wlegl_handle *handle = server_wlegl_handle_from(resource); | |
62 | ||
63 | int *fd = (int *)handle->fds.data; | |
64 | int *end = (int *)((char *)handle->fds.data + handle->fds.size); | |
65 | ||
66 | for (; fd < end; ++fd) | |
67 | close(*fd); | |
68 | ||
69 | wl_array_release(&handle->fds); | |
70 | wl_array_release(&handle->ints); | |
71 | ||
72 | delete handle; | |
73 | } | |
74 | ||
75 | server_wlegl_handle * | |
76 | server_wlegl_handle_create(uint32_t id) | |
77 | { | |
78 | server_wlegl_handle *handle = new server_wlegl_handle; | |
79 | ||
80 | memset(handle, 0, sizeof(*handle)); | |
81 | ||
82 | handle->resource.object.id = id; | |
83 | handle->resource.object.interface = &android_wlegl_handle_interface; | |
84 | handle->resource.object.implementation = | |
85 | (void (**)(void))&server_handle_impl; | |
86 | ||
87 | handle->resource.destroy = server_wlegl_handle_dtor; | |
88 | handle->resource.data = handle; | |
89 | ||
90 | wl_array_init(&handle->ints); | |
91 | wl_array_init(&handle->fds); | |
92 | ||
93 | return handle; | |
94 | } | |
95 | ||
96 | buffer_handle_t | |
97 | server_wlegl_handle_to_native(server_wlegl_handle *handle) | |
98 | { | |
99 | native_handle_t *native; | |
100 | int numFds = handle->fds.size / sizeof(int); | |
101 | int numInts = handle->ints.size / sizeof(int32_t); | |
102 | ||
103 | if (numFds != handle->num_fds) | |
104 | return NULL; | |
105 | ||
106 | native = native_handle_create(numFds, numInts); | |
107 | ||
108 | memcpy(&native->data[0], handle->fds.data, handle->fds.size); | |
109 | memcpy(&native->data[numFds], handle->ints.data, handle->ints.size); | |
110 | /* ownership of fds passed to native_handle_t */ | |
111 | handle->fds.size = 0; | |
112 | ||
113 | return (buffer_handle_t) native; | |
114 | } |