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Comparing libev/README.embed (file contents):
Revision 1.19 by root, Sat Nov 10 15:15:49 2007 UTC vs.
Revision 1.26 by root, Fri Nov 16 10:37:28 2007 UTC

33 33
34 ev.h 34 ev.h
35 ev.c 35 ev.c
36 ev_vars.h 36 ev_vars.h
37 ev_wrap.h 37 ev_wrap.h
38 ev_win32.c 38
39 ev_win32.c required on win32 platforms only
39 40
40 ev_select.c only when select backend is enabled (which is is by default) 41 ev_select.c only when select backend is enabled (which is is by default)
41 ev_poll.c only when poll backend is enabled (disabled by default) 42 ev_poll.c only when poll backend is enabled (disabled by default)
42 ev_epoll.c only when the epoll backend is enabled (disabled by default) 43 ev_epoll.c only when the epoll backend is enabled (disabled by default)
43 ev_kqueue.c only when the kqueue backend is enabled (disabled by default) 44 ev_kqueue.c only when the kqueue backend is enabled (disabled by default)
45 ev_port.c only when the solaris port backend is enabled (disabled by default)
44 46
45 "ev.c" includes the backend files directly when enabled. 47 "ev.c" includes the backend files directly when enabled.
46 48
47 LIBEVENT COMPATIBILITY API 49 LIBEVENT COMPATIBILITY API
48 50
82 will also not define any of the structs usually found in "event.h" 84 will also not define any of the structs usually found in "event.h"
83 that are not directly supported by libev code alone. 85 that are not directly supported by libev code alone.
84 86
85 EV_USE_MONOTONIC 87 EV_USE_MONOTONIC
86 88
87 If undefined or defined to be "1", libev will try to detect the 89 If defined to be "1", libev will try to detect the availability
88 availability of the monotonic clock option at both compiletime and 90 of the monotonic clock option at both compiletime and
89 runtime. Otherwise no use of the monotonic clock option will be 91 runtime. Otherwise no use of the monotonic clock option will be
90 attempted. 92 attempted. If you enable this, you usually have to link against
93 librt or something similar. Enabling it when the functionality
94 isn't available is safe, though.
91 95
92 EV_USE_REALTIME 96 EV_USE_REALTIME
93 97
94 If defined to be "1", libev will try to detect the availability 98 If defined to be "1", libev will try to detect the availability
95 of the realtime clock option at compiletime (and assume its 99 of the realtime clock option at compiletime (and assume its
103 If undefined or defined to be "1", libev will compile in support 107 If undefined or defined to be "1", libev will compile in support
104 for the select(2) backend. No attempt at autodetection will be 108 for the select(2) backend. No attempt at autodetection will be
105 done: if no other method takes over, select will be it. Otherwise 109 done: if no other method takes over, select will be it. Otherwise
106 the select backend will not be compiled in. 110 the select backend will not be compiled in.
107 111
108 EV_SELECT_USE_WIN32_HANDLES 112 EV_SELECT_USE_FD_SET
113
114 If defined to 1, then the select backend will use the system fd_set
115 structure. This is useful if libev doesn't compile due to a missing
116 NFDBITS or fd_mask definition or it misguesses the bitset layout on
117 exotic systems. This usually limits the range of file descriptors
118 to some low limit such as 1024 or might have other limitations
119 (winsocket only allows 64 sockets). The FD_SETSIZE macro, set
120 before compilation, might influence the size of the fd_set used.
121
122 EV_SELECT_IS_WINSOCKET
109 123
110 When defined to 1, the select backend will assume that select 124 When defined to 1, the select backend will assume that select
111 doesn't understand file descriptors but wants osf handles on 125 doesn't understand file descriptors but wants osf handles on
112 win32 (this is the case when the select to be used is the winsock 126 win32 (this is the case when the select to be used is the winsock
113 select). This means that it will call _get_osfhandle on the fd to 127 select). This means that it will call _get_osfhandle on the fd to
115 platforms. 129 platforms.
116 130
117 EV_USE_POLL 131 EV_USE_POLL
118 132
119 If defined to be "1", libev will compile in support for the poll(2) 133 If defined to be "1", libev will compile in support for the poll(2)
120 backend. No attempt at autodetection will be done. poll usually 134 backend. Otherwise it will be enabled on non-win32 platforms. It
121 performs worse than select, so its not enabled by default (it is 135 takes precedence over select.
122 also slightly less portable).
123 136
124 EV_USE_EPOLL 137 EV_USE_EPOLL
125 138
126 If defined to be "1", libev will compile in support for the Linux 139 If defined to be "1", libev will compile in support for the Linux
127 epoll backend. Its availability will be detected at runtime, 140 epoll backend. Its availability will be detected at runtime,
131 EV_USE_KQUEUE 144 EV_USE_KQUEUE
132 145
133 If defined to be "1", libev will compile in support for the BSD 146 If defined to be "1", libev will compile in support for the BSD
134 style kqueue backend. Its availability will be detected at runtime, 147 style kqueue backend. Its availability will be detected at runtime,
135 otherwise another method will be used as fallback. This is the 148 otherwise another method will be used as fallback. This is the
136 preferred backend for BSD and BSd-like systems. Darwin brokenness 149 preferred backend for BSD and BSD-like systems. Darwin brokenness
137 will be detected at runtime and routed around by disabling this 150 will be detected at runtime and routed around by disabling this
138 backend. 151 backend.
152
153 EV_USE_PORT
154
155 If defined to be "1", libev will compile in support for the Solaris
156 10 port style backend. Its availability will be detected at runtime,
157 otherwise another method will be used as fallback. This is the
158 preferred backend for Solaris 10 systems.
159
160 EV_USE_DEVPOLL
161
162 reserved for future expansion, works like the USE symbols above.
139 163
140 EV_H 164 EV_H
141 165
142 The name of the ev.h header file used to include it. The default 166 The name of the ev.h header file used to include it. The default
143 if undefined is <ev.h> in event.h and "ev.h" in ev.c. This can 167 if undefined is <ev.h> in event.h and "ev.h" in ev.c. This can
146 170
147 EV_EVENT_H 171 EV_EVENT_H
148 172
149 Similarly to EV_H, this macro cna be used to override event.c's idea 173 Similarly to EV_H, this macro cna be used to override event.c's idea
150 of how the event.h header can be found. 174 of how the event.h header can be found.
175
176 EV_PROTOTYPES
177
178 If defined to be "0", then "ev.h" will not define any function
179 prototypes, but still define all the structs and other
180 symbols. This is occasionally useful.
181
182 EV_MULTIPLICITY
183
184 If undefined or defined to "1", then all event-loop-specific
185 functions will have the "struct ev_loop *" as first argument, and
186 you can create additional independent event loops. Otherwise there
187 will be no support for multiple event loops and there is no first
188 event loop pointer argument. Instead, all functions act on the
189 single default loop.
190
191 EV_PERIODICS
192
193 If undefined or defined to be "1", then periodic timers are
194 supported, otherwise not. This saves a few kb of code.
151 195
152 EV_COMMON 196 EV_COMMON
153 197
154 By default, all watchers have a "void *data" member. By redefining 198 By default, all watchers have a "void *data" member. By redefining
155 this macro to a something else you can include more and other types 199 this macro to a something else you can include more and other types
159 For example, the perl EV module uses this: 203 For example, the perl EV module uses this:
160 204
161 #define EV_COMMON \ 205 #define EV_COMMON \
162 SV *self; /* contains this struct */ \ 206 SV *self; /* contains this struct */ \
163 SV *cb_sv, *fh /* note no trailing ";" */ 207 SV *cb_sv, *fh /* note no trailing ";" */
164
165 EV_PROTOTYPES
166
167 If defined to be "0", then "ev.h" will not define any function
168 prototypes, but still define all the structs and other
169 symbols. This is occasionally useful.
170
171 EV_MULTIPLICITY
172
173 If undefined or defined to "1", then all event-loop-specific
174 functions will have the "struct ev_loop *" as first argument, and
175 you can create additional independent event loops. Otherwise there
176 will be no support for multiple event loops and there is no first
177 event loop pointer argument. Instead, all functions act on the
178 single default loop.
179 208
180 EV_CB_DECLARE(type) 209 EV_CB_DECLARE(type)
181 EV_CB_INVOKE(watcher,revents) 210 EV_CB_INVOKE(watcher,revents)
182 ev_set_cb(ev,cb) 211 ev_set_cb(ev,cb)
183 212

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