1 /* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
2 *
3 * Permission is hereby granted, free of charge, to any person obtaining a copy
4 * of this software and associated documentation files (the "Software"), to
5 * deal in the Software without restriction, including without limitation the
6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
7 * sell copies of the Software, and to permit persons to whom the Software is
8 * furnished to do so, subject to the following conditions:
9 *
10 * The above copyright notice and this permission notice shall be included in
11 * all copies or substantial portions of the Software.
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
19 * IN THE SOFTWARE.
20 */
21
22 #ifndef UV_WIN_HANDLE_INL_H_
23 #define UV_WIN_HANDLE_INL_H_
24
25 #include <assert.h>
26 #include <io.h>
27
28 #include "uv.h"
29 #include "internal.h"
30
31
32 #define DECREASE_ACTIVE_COUNT(loop, handle) \
33 do { \
34 if (--(handle)->activecnt == 0 && \
35 !((handle)->flags & UV_HANDLE_CLOSING)) { \
36 uv__handle_stop((handle)); \
37 } \
38 assert((handle)->activecnt >= 0); \
39 } while (0)
40
41
42 #define INCREASE_ACTIVE_COUNT(loop, handle) \
43 do { \
44 if ((handle)->activecnt++ == 0) { \
45 uv__handle_start((handle)); \
46 } \
47 assert((handle)->activecnt > 0); \
48 } while (0)
49
50
51 #define DECREASE_PENDING_REQ_COUNT(handle) \
52 do { \
53 assert(handle->reqs_pending > 0); \
54 handle->reqs_pending--; \
55 \
56 if (handle->flags & UV_HANDLE_CLOSING && \
57 handle->reqs_pending == 0) { \
58 uv__want_endgame(loop, (uv_handle_t*)handle); \
59 } \
60 } while (0)
61
62
63 #define uv__handle_closing(handle) \
64 do { \
65 assert(!((handle)->flags & UV_HANDLE_CLOSING)); \
66 \
67 if (!(((handle)->flags & UV_HANDLE_ACTIVE) && \
68 ((handle)->flags & UV_HANDLE_REF))) \
69 uv__active_handle_add((uv_handle_t*) (handle)); \
70 \
71 (handle)->flags |= UV_HANDLE_CLOSING; \
72 (handle)->flags &= ~UV_HANDLE_ACTIVE; \
73 } while (0)
74
75
76 #define uv__handle_close(handle) \
77 do { \
78 uv__queue_remove(&(handle)->handle_queue); \
79 uv__active_handle_rm((uv_handle_t*) (handle)); \
80 \
81 (handle)->flags |= UV_HANDLE_CLOSED; \
82 \
83 if ((handle)->close_cb) \
84 (handle)->close_cb((uv_handle_t*) (handle)); \
85 } while (0)
86
87
uv__want_endgame(uv_loop_t * loop,uv_handle_t * handle)88 INLINE static void uv__want_endgame(uv_loop_t* loop, uv_handle_t* handle) {
89 if (!(handle->flags & UV_HANDLE_ENDGAME_QUEUED)) {
90 handle->flags |= UV_HANDLE_ENDGAME_QUEUED;
91
92 handle->endgame_next = loop->endgame_handles;
93 loop->endgame_handles = handle;
94 }
95 }
96
97
uv__process_endgames(uv_loop_t * loop)98 INLINE static void uv__process_endgames(uv_loop_t* loop) {
99 uv_handle_t* handle;
100
101 while (loop->endgame_handles) {
102 handle = loop->endgame_handles;
103 loop->endgame_handles = handle->endgame_next;
104
105 handle->flags &= ~UV_HANDLE_ENDGAME_QUEUED;
106
107 switch (handle->type) {
108 case UV_TCP:
109 uv__tcp_endgame(loop, (uv_tcp_t*) handle);
110 break;
111
112 case UV_NAMED_PIPE:
113 uv__pipe_endgame(loop, (uv_pipe_t*) handle);
114 break;
115
116 case UV_TTY:
117 uv__tty_endgame(loop, (uv_tty_t*) handle);
118 break;
119
120 case UV_UDP:
121 uv__udp_endgame(loop, (uv_udp_t*) handle);
122 break;
123
124 case UV_POLL:
125 uv__poll_endgame(loop, (uv_poll_t*) handle);
126 break;
127
128 case UV_TIMER:
129 uv__timer_close((uv_timer_t*) handle);
130 uv__handle_close(handle);
131 break;
132
133 case UV_PREPARE:
134 case UV_CHECK:
135 case UV_IDLE:
136 uv__loop_watcher_endgame(loop, handle);
137 break;
138
139 case UV_ASYNC:
140 uv__async_endgame(loop, (uv_async_t*) handle);
141 break;
142
143 case UV_SIGNAL:
144 uv__signal_endgame(loop, (uv_signal_t*) handle);
145 break;
146
147 case UV_PROCESS:
148 uv__process_endgame(loop, (uv_process_t*) handle);
149 break;
150
151 case UV_FS_EVENT:
152 uv__fs_event_endgame(loop, (uv_fs_event_t*) handle);
153 break;
154
155 case UV_FS_POLL:
156 uv__fs_poll_endgame(loop, (uv_fs_poll_t*) handle);
157 break;
158
159 default:
160 assert(0);
161 break;
162 }
163 }
164 }
165
uv__get_osfhandle(int fd)166 INLINE static HANDLE uv__get_osfhandle(int fd)
167 {
168 /* _get_osfhandle() raises an assert in debug builds if the FD is invalid.
169 * But it also correctly checks the FD and returns INVALID_HANDLE_VALUE for
170 * invalid FDs in release builds (or if you let the assert continue). So this
171 * wrapper function disables asserts when calling _get_osfhandle. */
172
173 HANDLE handle;
174 UV_BEGIN_DISABLE_CRT_ASSERT();
175 handle = (HANDLE) _get_osfhandle(fd);
176 UV_END_DISABLE_CRT_ASSERT();
177 return handle;
178 }
179
180 #endif /* UV_WIN_HANDLE_INL_H_ */
181
