1 | /* |
1 | /* |
2 | * libevent compatibility layer |
2 | * libevent compatibility layer |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
61 | int dummy; |
61 | int dummy; |
62 | }; |
62 | }; |
63 | |
63 | |
64 | static struct event_base *ev_x_cur; |
64 | static struct event_base *ev_x_cur; |
65 | |
65 | |
66 | static void |
|
|
67 | ev_tv_set (struct timeval *tv, ev_tstamp at) |
|
|
68 | { |
|
|
69 | tv->tv_sec = (long)at; |
|
|
70 | tv->tv_usec = (long)((at - (ev_tstamp)tv->tv_sec) * 1e6); |
|
|
71 | } |
|
|
72 | |
|
|
73 | static ev_tstamp |
66 | static ev_tstamp |
74 | ev_tv_get (struct timeval *tv) |
67 | ev_tv_get (struct timeval *tv) |
75 | { |
68 | { |
76 | if (tv) |
69 | if (tv) |
|
|
70 | { |
77 | return tv->tv_sec + tv->tv_usec * 1e-6; |
71 | ev_tstamp after = tv->tv_sec + tv->tv_usec * 1e-6; |
|
|
72 | return after ? after : 1e-6; |
|
|
73 | } |
78 | else |
74 | else |
79 | return -1.; |
75 | return -1.; |
80 | } |
76 | } |
81 | |
77 | |
82 | #define EVENT_STRINGIFY(s) # s |
78 | #define EVENT_STRINGIFY(s) # s |
… | |
… | |
112 | void event_base_free (struct event_base *base) |
108 | void event_base_free (struct event_base *base) |
113 | { |
109 | { |
114 | dLOOPbase; |
110 | dLOOPbase; |
115 | |
111 | |
116 | #if EV_MULTIPLICITY |
112 | #if EV_MULTIPLICITY |
117 | if (ev_default_loop (EVFLAG_AUTO) != loop) |
113 | if (!ev_is_default_loop (loop)) |
118 | ev_loop_destroy (loop); |
114 | ev_loop_destroy (loop); |
119 | #endif |
115 | #endif |
120 | } |
116 | } |
121 | |
117 | |
122 | int event_dispatch (void) |
118 | int event_dispatch (void) |
… | |
… | |
142 | } |
138 | } |
143 | |
139 | |
144 | static void |
140 | static void |
145 | ev_x_cb (struct event *ev, int revents) |
141 | ev_x_cb (struct event *ev, int revents) |
146 | { |
142 | { |
147 | revents &= EV_READ | EV_WRITE | EV_TIMEOUT | EV_SIGNAL; |
143 | revents &= EV_READ | EV_WRITE | EV_TIMER | EV_SIGNAL; |
148 | |
144 | |
149 | ev->ev_res = revents; |
145 | ev->ev_res = revents; |
150 | ev->ev_callback (ev->ev_fd, (short)revents, ev->ev_arg); |
146 | ev->ev_callback (ev->ev_fd, (short)revents, ev->ev_arg); |
151 | } |
147 | } |
152 | |
148 | |
… | |
… | |
300 | if (ev->ev_events & EV_TIMEOUT || ev_is_active (&ev->to) || ev_is_pending (&ev->to)) |
296 | if (ev->ev_events & EV_TIMEOUT || ev_is_active (&ev->to) || ev_is_pending (&ev->to)) |
301 | { |
297 | { |
302 | revents |= EV_TIMEOUT; |
298 | revents |= EV_TIMEOUT; |
303 | |
299 | |
304 | if (tv) |
300 | if (tv) |
305 | ev_tv_set (tv, ev_now (EV_A)); /* not sure if this is right :) */ |
301 | { |
|
|
302 | ev_tstamp at = ev_now (EV_A); |
|
|
303 | |
|
|
304 | tv->tv_sec = (long)at; |
|
|
305 | tv->tv_usec = (long)((at - (ev_tstamp)tv->tv_sec) * 1e6); |
|
|
306 | } |
306 | } |
307 | } |
307 | |
308 | |
308 | return events & revents; |
309 | return events & revents; |
309 | } |
310 | } |
310 | |
311 | |
… | |
… | |
329 | |
330 | |
330 | int event_base_loop (struct event_base *base, int flags) |
331 | int event_base_loop (struct event_base *base, int flags) |
331 | { |
332 | { |
332 | dLOOPbase; |
333 | dLOOPbase; |
333 | |
334 | |
334 | ev_loop (EV_A_ flags); |
335 | ev_run (EV_A_ flags); |
335 | |
336 | |
336 | return 0; |
337 | return 0; |
337 | } |
338 | } |
338 | |
339 | |
339 | int event_base_dispatch (struct event_base *base) |
340 | int event_base_dispatch (struct event_base *base) |
… | |
… | |
344 | static void |
345 | static void |
345 | ev_x_loopexit_cb (int revents, void *base) |
346 | ev_x_loopexit_cb (int revents, void *base) |
346 | { |
347 | { |
347 | dLOOPbase; |
348 | dLOOPbase; |
348 | |
349 | |
349 | ev_unloop (EV_A_ EVUNLOOP_ONE); |
350 | ev_break (EV_A_ EVBREAK_ONE); |
350 | } |
351 | } |
351 | |
352 | |
352 | int event_base_loopexit (struct event_base *base, struct timeval *tv) |
353 | int event_base_loopexit (struct event_base *base, struct timeval *tv) |
353 | { |
354 | { |
354 | ev_tstamp after = ev_tv_get (tv); |
355 | ev_tstamp after = ev_tv_get (tv); |