1 /*
2  * Copyright (c) 2010-2015 Cisco Systems, Inc.  All rights reserved.
3  * Copyright (c) 2010      Oracle and/or its affiliates.  All rights reserved.
4  * Copyright (c) 2012-2013 Los Alamos National Security, LLC.
5  *                         All rights reserved.
6  * Copyright (c) 2015      Intel, Inc. All rights reserved.
7  * Copyright (c) 2017      Research Organization for Information Science
8  *                         and Technology (RIST). All rights reserved.
9  * $COPYRIGHT$
10  *
11  * Additional copyrights may follow
12  *
13  * $HEADER$
14  *
15  * When this component is used, this file is included in the rest of
16  * the OPAL/ORTE/OMPI code base via opal/mca/event/event.h.  As such,
17  * this header represents the public interface to this static component.
18  */
19 
20 #ifndef MCA_OPAL_EVENT_LIBEVENT2022_H
21 #define MCA_OPAL_EVENT_LIBEVENT2022_H
22 
23 #include "opal_config.h"
24 
25 #ifdef HAVE_SYS_TYPES_H
26 #include <sys/types.h>
27 #endif
28 
29 #ifdef WIN32
30 #define WIN32_LEAN_AND_MEAN
31 #include <windows.h>
32 #undef WIN32_LEAN_AND_MEAN
33 #endif
34 #ifdef HAVE_SYS_TIME_H
35 #include <sys/time.h>
36 #endif
37 #include <stdio.h>
38 #include <stdlib.h>
39 #ifndef WIN32
40 #ifdef HAVE_UNISTD_H
41 #include <unistd.h>
42 #endif
43 #endif
44 #include <errno.h>
45 #include <signal.h>
46 #include <string.h>
47 #include <assert.h>
48 #include <time.h>
49 
50 #include "opal/class/opal_object.h"
51 #include "opal/threads/mutex.h"
52 #include "opal/threads/threads.h"
53 #include "opal/util/output.h"
54 #include "opal/constants.h"
55 #include "opal/util/argv.h"
56 #include "opal/mca/event/base/base.h"
57 
58 #include "libevent/event.h"
59 #include "libevent/include/event2/thread.h"
60 
61 #include "opal/mca/event/event.h"
62 
63 typedef event_callback_fn opal_event_cbfunc_t;
64 
65 
66 BEGIN_C_DECLS
67 
68 typedef struct event_base opal_event_base_t;
69 typedef struct event opal_event_t;
70 
71 OPAL_DECLSPEC extern opal_event_base_t *opal_sync_event_base;
72 
73 #define OPAL_EV_TIMEOUT EV_TIMEOUT
74 #define OPAL_EV_READ    EV_READ
75 #define OPAL_EV_WRITE   EV_WRITE
76 #define OPAL_EV_SIGNAL  EV_SIGNAL
77 /* Persistent event: won't get removed automatically when activated. */
78 #define OPAL_EV_PERSIST EV_PERSIST
79 
80 #define OPAL_EVLOOP_ONCE     EVLOOP_ONCE        /**< Block at most once. */
81 #define OPAL_EVLOOP_NONBLOCK EVLOOP_NONBLOCK    /**< Do not block. */
82 
83 /* Global function to create and release an event base */
84 OPAL_DECLSPEC opal_event_base_t* opal_event_base_create(void);
85 
86 #define opal_event_base_free(x) event_base_free(x)
87 
88 OPAL_DECLSPEC int opal_event_init(void);
89 
90 OPAL_DECLSPEC int opal_event_finalize(void);
91 
92 #define opal_event_reinit(b) event_reinit((b))
93 
94 #define opal_event_base_init_common_timeout (b, t) event_base_init_common_timeout((b), (t))
95 
96 #define opal_event_base_loopbreak(b) event_base_loopbreak(b)
97 
98 #define opal_event_base_loopexit(b) event_base_loopexit(b, NULL)
99 
100 /* Event priority APIs */
101 #define opal_event_base_priority_init(b, n) event_base_priority_init((b), (n))
102 
103 #define opal_event_set_priority(x, n) event_priority_set((x), (n))
104 
105 /* thread support APIs */
106 #define opal_event_use_threads() evthread_use_pthreads()
107 
108 /* Basic event APIs */
109 #define opal_event_enable_debug_mode() event_enable_debug_mode()
110 
111 #define opal_event_set(b, x, fd, fg, cb, arg) event_assign((x), (b), (fd), (fg), (event_callback_fn) (cb), (arg))
112 
113 #define opal_event_assign(x, b, fd, fg, cb, arg) event_assign((x), (b), (fd), (fg), (event_callback_fn) (cb), (arg))
114 
115 #define opal_event_add(ev, tv) event_add((ev), (tv))
116 
117 #define opal_event_del(ev) event_del((ev))
118 
119 #define opal_event_active(x, y, z) event_active((x), (y), (z))
120 
121 #define opal_event_new(b, fd, fg, cb, arg) event_new((b), (fd), (fg), (event_callback_fn) (cb), (arg))
122 
123 OPAL_DECLSPEC opal_event_t* opal_event_alloc(void);
124 
125 #define opal_event_free(x) event_free((x))
126 
127 /* Timer APIs */
128 #define opal_event_evtimer_new(b, cb, arg) opal_event_new((b), -1, 0, (cb), (arg))
129 
130 #define opal_event_evtimer_add(x, tv) opal_event_add((x), (tv))
131 
132 #define opal_event_evtimer_set(b, x, cb, arg) event_assign((x), (b), -1, 0, (event_callback_fn) (cb), (arg))
133 
134 #define opal_event_evtimer_del(x) opal_event_del((x))
135 
136 #define opal_event_evtimer_pending(x, tv) event_pending((x), EV_TIMEOUT, (tv))
137 
138 #define opal_event_evtimer_initialized(x) event_initialized((x))
139 
140 /* Signal APIs */
141 #define opal_event_signal_add(x, tv) event_add((x), (tv))
142 
143 #define opal_event_signal_set(b, x, fd, cb, arg) event_assign((x), (b), (fd), EV_SIGNAL|EV_PERSIST, (event_callback_fn) (cb), (arg))
144 
145 #define opal_event_signal_del(x) event_del((x))
146 
147 #define opal_event_signal_pending(x, tv) event_pending((x), EV_SIGNAL, (tv))
148 
149 #define opal_event_signal_initalized(x) event_initialized((x))
150 
151 #define opal_event_get_signal(x) event_get_signal((x))
152 
153 #define opal_event_loop(b, fg) event_base_loop((b), (fg))
154 
155 END_C_DECLS
156 
157 #endif /* MCA_OPAL_EVENT_LIBEVENT2022_H */
158