Mirror of :pserver:anonymous@cvs.schmorp.de/schmorpforge libev http://software.schmorp.de/pkg/libev.html
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  1. /*
  2. * libevent compatibility header, only core events supported
  3. *
  4. * Copyright (c) 2007,2008,2010,2012 Marc Alexander Lehmann <libev@schmorp.de>
  5. * All rights reserved.
  6. *
  7. * Redistribution and use in source and binary forms, with or without modifica-
  8. * tion, are permitted provided that the following conditions are met:
  9. *
  10. * 1. Redistributions of source code must retain the above copyright notice,
  11. * this list of conditions and the following disclaimer.
  12. *
  13. * 2. Redistributions in binary form must reproduce the above copyright
  14. * notice, this list of conditions and the following disclaimer in the
  15. * documentation and/or other materials provided with the distribution.
  16. *
  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-
  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-
  21. * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  22. * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  23. * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  24. * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
  25. * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  26. * OF THE POSSIBILITY OF SUCH DAMAGE.
  27. *
  28. * Alternatively, the contents of this file may be used under the terms of
  29. * the GNU General Public License ("GPL") version 2 or any later version,
  30. * in which case the provisions of the GPL are applicable instead of
  31. * the above. If you wish to allow the use of your version of this file
  32. * only under the terms of the GPL and not to allow others to use your
  33. * version of this file under the BSD license, indicate your decision
  34. * by deleting the provisions above and replace them with the notice
  35. * and other provisions required by the GPL. If you do not delete the
  36. * provisions above, a recipient may use your version of this file under
  37. * either the BSD or the GPL.
  38. */
  39. #ifndef EVENT_H_
  40. #define EVENT_H_
  41. #ifdef EV_H
  42. # include EV_H
  43. #else
  44. # include "ev.h"
  45. #endif
  46. #ifndef EVLOOP_NONBLOCK
  47. # define EVLOOP_NONBLOCK EVRUN_NOWAIT
  48. #endif
  49. #ifndef EVLOOP_ONESHOT
  50. # define EVLOOP_ONESHOT EVRUN_ONCE
  51. #endif
  52. #ifndef EV_TIMEOUT
  53. # define EV_TIMEOUT EV_TIMER
  54. #endif
  55. #ifdef __cplusplus
  56. extern "C" {
  57. #endif
  58. /* we need sys/time.h for struct timeval only */
  59. #if !defined (WIN32) || defined (__MINGW32__)
  60. # include <time.h> /* mingw seems to need this, for whatever reason */
  61. # include <sys/time.h>
  62. #endif
  63. struct event_base;
  64. #define EVLIST_TIMEOUT 0x01
  65. #define EVLIST_INSERTED 0x02
  66. #define EVLIST_SIGNAL 0x04
  67. #define EVLIST_ACTIVE 0x08
  68. #define EVLIST_INTERNAL 0x10
  69. #define EVLIST_INIT 0x80
  70. struct event
  71. {
  72. /* libev watchers we map onto */
  73. union {
  74. struct ev_io io;
  75. struct ev_signal sig;
  76. } iosig;
  77. struct ev_timer to;
  78. /* compatibility slots */
  79. struct event_base *ev_base;
  80. void (*ev_callback)(int, short, void *arg);
  81. void *ev_arg;
  82. int ev_fd;
  83. int ev_pri;
  84. int ev_res;
  85. int ev_flags;
  86. short ev_events;
  87. };
  88. #define EV_READ EV_READ
  89. #define EV_WRITE EV_WRITE
  90. #define EV_PERSIST 0x10
  91. #define EV_ET 0x20 /* nop */
  92. #define EVENT_SIGNAL(ev) ((int) (ev)->ev_fd)
  93. #define EVENT_FD(ev) ((int) (ev)->ev_fd)
  94. #define event_initialized(ev) ((ev)->ev_flags & EVLIST_INIT)
  95. #define evtimer_add(ev,tv) event_add (ev, tv)
  96. #define evtimer_set(ev,cb,data) event_set (ev, -1, 0, cb, data)
  97. #define evtimer_del(ev) event_del (ev)
  98. #define evtimer_pending(ev,tv) event_pending (ev, EV_TIMEOUT, tv)
  99. #define evtimer_initialized(ev) event_initialized (ev)
  100. #define timeout_add(ev,tv) evtimer_add (ev, tv)
  101. #define timeout_set(ev,cb,data) evtimer_set (ev, cb, data)
  102. #define timeout_del(ev) evtimer_del (ev)
  103. #define timeout_pending(ev,tv) evtimer_pending (ev, tv)
  104. #define timeout_initialized(ev) evtimer_initialized (ev)
  105. #define signal_add(ev,tv) event_add (ev, tv)
  106. #define signal_set(ev,sig,cb,data) event_set (ev, sig, EV_SIGNAL | EV_PERSIST, cb, data)
  107. #define signal_del(ev) event_del (ev)
  108. #define signal_pending(ev,tv) event_pending (ev, EV_SIGNAL, tv)
  109. #define signal_initialized(ev) event_initialized (ev)
  110. const char *event_get_version (void);
  111. const char *event_get_method (void);
  112. void *event_init (void);
  113. void event_base_free (struct event_base *base);
  114. #define EVLOOP_ONCE EVLOOP_ONESHOT
  115. int event_loop (int);
  116. int event_loopexit (struct timeval *tv);
  117. int event_dispatch (void);
  118. #define _EVENT_LOG_DEBUG 0
  119. #define _EVENT_LOG_MSG 1
  120. #define _EVENT_LOG_WARN 2
  121. #define _EVENT_LOG_ERR 3
  122. typedef void (*event_log_cb)(int severity, const char *msg);
  123. void event_set_log_callback(event_log_cb cb);
  124. typedef void (*event_callback_fn)(int, short, void *);
  125. event_callback_fn event_get_callback (const struct event *ev);
  126. void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg);
  127. int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);
  128. int event_add (struct event *ev, struct timeval *tv);
  129. int event_del (struct event *ev);
  130. void event_active (struct event *ev, int res, short ncalls); /* ncalls is being ignored */
  131. int event_pending (struct event *ev, short, struct timeval *tv);
  132. int event_priority_init (int npri);
  133. int event_priority_set (struct event *ev, int pri);
  134. struct event_base *event_base_new (void);
  135. const char *event_base_get_method (const struct event_base *);
  136. int event_base_set (struct event_base *base, struct event *ev);
  137. int event_base_loop (struct event_base *base, int);
  138. int event_base_loopexit (struct event_base *base, struct timeval *tv);
  139. int event_base_dispatch (struct event_base *base);
  140. int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);
  141. int event_base_priority_init (struct event_base *base, int fd);
  142. /* next line is different in the libevent+libev version */
  143. /*libevent-include*/
  144. #ifdef __cplusplus
  145. }
  146. #endif
  147. #endif