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1 | /* |
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2 | * libev simple C++ wrapper classes |
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3 | * |
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4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
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5 | * All rights reserved. |
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6 | * |
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7 | * Redistribution and use in source and binary forms, with or without modifica- |
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8 | * tion, are permitted provided that the following conditions are met: |
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9 | * |
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10 | * 1. Redistributions of source code must retain the above copyright notice, |
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11 | * this list of conditions and the following disclaimer. |
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12 | * |
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13 | * 2. Redistributions in binary form must reproduce the above copyright |
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14 | * notice, this list of conditions and the following disclaimer in the |
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15 | * documentation and/or other materials provided with the distribution. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | * |
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28 | * Alternatively, the contents of this file may be used under the terms of |
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29 | * the GNU General Public License ("GPL") version 2 or any later version, |
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30 | * in which case the provisions of the GPL are applicable instead of |
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31 | * the above. If you wish to allow the use of your version of this file |
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32 | * only under the terms of the GPL and not to allow others to use your |
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33 | * version of this file under the BSD license, indicate your decision |
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34 | * by deleting the provisions above and replace them with the notice |
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35 | * and other provisions required by the GPL. If you do not delete the |
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36 | * provisions above, a recipient may use your version of this file under |
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37 | * either the BSD or the GPL. |
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38 | */ |
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39 | |
1 | #ifndef EVPP_H__ |
40 | #ifndef EVPP_H__ |
2 | #define EVPP_H__ |
41 | #define EVPP_H__ |
3 | |
42 | |
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43 | #ifdef EV_H |
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44 | # include EV_H |
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45 | #else |
4 | #include "ev.h" |
46 | # include "ev.h" |
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47 | #endif |
5 | |
48 | |
6 | namespace ev { |
49 | namespace ev { |
7 | |
50 | |
8 | template<class ev_watcher, class watcher> |
51 | typedef ev_tstamp tstamp; |
9 | struct base : ev_watcher |
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10 | { |
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11 | #if EV_MULTIPLICITY |
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12 | EV_P; |
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13 | |
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14 | void set (EV_P) |
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15 | { |
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16 | this->EV_A = EV_A; |
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17 | } |
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18 | #endif |
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19 | |
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20 | base () |
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21 | { |
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22 | ev_init (this, 0); |
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23 | } |
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24 | |
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25 | void set_ (void *object, void (*cb)(EV_P_ ev_watcher *w, int revents)) |
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26 | { |
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27 | this->data = object; |
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28 | ev_set_cb (static_cast<ev_watcher *>(this), cb); |
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29 | } |
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30 | |
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31 | template<class K, void (K::*method)(watcher &w, int)> |
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32 | void set (K *object) |
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33 | { |
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34 | set_ (object, method_thunk<K, method>); |
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35 | } |
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36 | |
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37 | template<class K, void (K::*method)(watcher &w, int)> |
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38 | static void method_thunk (EV_P_ ev_watcher *w, int revents) |
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39 | { |
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40 | watcher *self = static_cast<watcher *>(w); |
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41 | K *obj = static_cast<K *>(self->data); |
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42 | (obj->*method) (*self, revents); |
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43 | } |
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44 | |
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45 | template<class K, void (K::*method)(watcher &w, int) const> |
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46 | void set (const K *object) |
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47 | { |
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48 | set_ (object, const_method_thunk<K, method>); |
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49 | } |
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50 | |
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51 | template<class K, void (K::*method)(watcher &w, int) const> |
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52 | static void const_method_thunk (EV_P_ ev_watcher *w, int revents) |
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53 | { |
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54 | watcher *self = static_cast<watcher *>(w); |
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55 | K *obj = static_cast<K *>(self->data); |
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56 | (obj->*method) (*self, revents); |
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57 | } |
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58 | |
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59 | template<void (*function)(watcher &w, int), void *data = 0> |
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60 | void set () |
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61 | { |
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62 | set_ (data, function_thunk<function>); |
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63 | } |
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64 | |
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65 | template<void (*function)(watcher &w, int)> |
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66 | static void function_thunk (EV_P_ ev_watcher *w, int revents) |
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67 | { |
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68 | watcher *self = static_cast<watcher *>(w); |
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69 | function (*self, revents); |
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70 | } |
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71 | |
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72 | void operator ()(int events = EV_UNDEF) |
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73 | { |
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74 | return ev_cb (static_cast<ev_watcher *>(this)) |
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75 | (static_cast<ev_watcher *>(this), events); |
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76 | } |
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77 | |
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78 | bool is_active () const |
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79 | { |
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80 | return ev_is_active (static_cast<const ev_watcher *>(this)); |
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81 | } |
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82 | |
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83 | bool is_pending () const |
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84 | { |
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85 | return ev_is_pending (static_cast<const ev_watcher *>(this)); |
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86 | } |
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87 | }; |
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88 | |
52 | |
89 | enum { |
53 | enum { |
90 | UNDEF = EV_UNDEF, |
54 | UNDEF = EV_UNDEF, |
91 | NONE = EV_NONE, |
55 | NONE = EV_NONE, |
92 | READ = EV_READ, |
56 | READ = EV_READ, |
… | |
… | |
102 | FORK = EV_FORK, |
66 | FORK = EV_FORK, |
103 | EMBED = EV_EMBED, |
67 | EMBED = EV_EMBED, |
104 | ERROR = EV_ERROR, |
68 | ERROR = EV_ERROR, |
105 | }; |
69 | }; |
106 | |
70 | |
107 | typedef ev_tstamp tstamp; |
71 | enum |
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72 | { |
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73 | AUTO = EVFLAG_AUTO, |
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74 | NOENV = EVFLAG_NOENV, |
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75 | FORKCHECK = EVFLAG_FORKCHECK, |
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76 | SELECT = EVBACKEND_SELECT, |
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77 | POLL = EVBACKEND_POLL, |
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78 | EPOLL = EVBACKEND_EPOLL, |
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79 | KQUEUE = EVBACKEND_KQUEUE, |
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80 | DEVPOLL = EVBACKEND_DEVPOLL, |
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81 | PORT = EVBACKEND_PORT |
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82 | }; |
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83 | |
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84 | enum |
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85 | { |
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86 | NONBLOCK = EVLOOP_NONBLOCK, |
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87 | ONESHOT = EVLOOP_ONESHOT |
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88 | }; |
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89 | |
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90 | enum how_t |
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91 | { |
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92 | ONE = EVUNLOOP_ONE, |
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93 | ALL = EVUNLOOP_ALL |
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94 | }; |
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95 | |
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96 | template<class ev_watcher, class watcher> |
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97 | struct base : ev_watcher |
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98 | { |
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99 | #if EV_MULTIPLICITY |
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100 | EV_P; |
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101 | |
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102 | void set (EV_P) |
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103 | { |
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104 | this->EV_A = EV_A; |
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105 | } |
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106 | #endif |
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107 | |
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108 | base () |
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109 | { |
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110 | ev_init (this, 0); |
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111 | } |
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112 | |
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113 | void set_ (void *data, void (*cb)(EV_P_ ev_watcher *w, int revents)) |
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114 | { |
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115 | this->data = data; |
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116 | ev_set_cb (static_cast<ev_watcher *>(this), cb); |
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117 | } |
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118 | |
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119 | // method callback |
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120 | template<class K, void (K::*method)(watcher &w, int)> |
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121 | void set (K *object) |
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122 | { |
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123 | set_ (object, method_thunk<K, method>); |
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124 | } |
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125 | |
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126 | template<class K, void (K::*method)(watcher &w, int)> |
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127 | static void method_thunk (EV_P_ ev_watcher *w, int revents) |
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128 | { |
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129 | K *obj = static_cast<K *>(w->data); |
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130 | (obj->*method) (*static_cast<watcher *>(w), revents); |
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131 | } |
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132 | |
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133 | // const method callback |
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134 | template<class K, void (K::*method)(watcher &w, int) const> |
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135 | void set (const K *object) |
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136 | { |
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137 | set_ (object, const_method_thunk<K, method>); |
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138 | } |
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139 | |
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140 | template<class K, void (K::*method)(watcher &w, int) const> |
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141 | static void const_method_thunk (EV_P_ ev_watcher *w, int revents) |
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142 | { |
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143 | K *obj = static_cast<K *>(w->data); |
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144 | (static_cast<K *>(w->data)->*method) (*static_cast<watcher *>(w), revents); |
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145 | } |
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146 | |
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147 | // function callback |
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148 | template<void (*function)(watcher &w, int)> |
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149 | void set (void *data = 0) |
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150 | { |
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151 | set_ (data, function_thunk<function>); |
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152 | } |
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153 | |
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154 | template<void (*function)(watcher &w, int)> |
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155 | static void function_thunk (EV_P_ ev_watcher *w, int revents) |
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156 | { |
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157 | function (*static_cast<watcher *>(w), revents); |
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158 | } |
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159 | |
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160 | // simple callback |
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161 | template<class K, void (K::*method)()> |
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162 | void set (K *object) |
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163 | { |
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164 | set_ (object, method_noargs_thunk<K, method>); |
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165 | } |
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166 | |
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167 | template<class K, void (K::*method)()> |
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168 | static void method_noargs_thunk (EV_P_ ev_watcher *w, int revents) |
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169 | { |
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170 | K *obj = static_cast<K *>(w->data); |
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171 | (obj->*method) (); |
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172 | } |
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173 | |
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174 | void operator ()(int events = EV_UNDEF) |
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175 | { |
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176 | return ev_cb (static_cast<ev_watcher *>(this)) |
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177 | (static_cast<ev_watcher *>(this), events); |
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178 | } |
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179 | |
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180 | bool is_active () const |
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181 | { |
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182 | return ev_is_active (static_cast<const ev_watcher *>(this)); |
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183 | } |
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184 | |
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185 | bool is_pending () const |
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186 | { |
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187 | return ev_is_pending (static_cast<const ev_watcher *>(this)); |
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188 | } |
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189 | }; |
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190 | |
108 | |
191 | |
109 | inline ev_tstamp now (EV_P) |
192 | inline ev_tstamp now (EV_P) |
110 | { |
193 | { |
111 | return ev_now (EV_A); |
194 | return ev_now (EV_A); |
112 | } |
195 | } |
… | |
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149 | \ |
232 | \ |
150 | using base<ev_ ## cstem, cppstem>::set; \ |
233 | using base<ev_ ## cstem, cppstem>::set; \ |
151 | \ |
234 | \ |
152 | private: \ |
235 | private: \ |
153 | \ |
236 | \ |
154 | cppstem (const cppstem &o) \ |
237 | cppstem (const cppstem &o); \ |
155 | { /* disabled */ } \ |
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156 | \ |
238 | \ |
157 | void operator =(const cppstem &o) { /* disabled */ } \ |
239 | cppstem & operator =(const cppstem &o); \ |
158 | \ |
240 | \ |
159 | public: |
241 | public: |
160 | |
242 | |
161 | #define EV_END_WATCHER(cppstem,cstem) \ |
243 | #define EV_END_WATCHER(cppstem,cstem) \ |
162 | }; |
244 | }; |