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Revision 1.21 by root, Sun Nov 11 03:13:07 2007 UTC

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22 instead and where you can put other configuration options): 22 instead and where you can put other configuration options):
23 23
24 #define EV_STANDALONE 1 24 #define EV_STANDALONE 1
25 #include "ev.h" 25 #include "ev.h"
26 26
27 Both header files and implementation files can be compiled with a C++
28 compiler (at least, thats a stated goal, and breakage will be treated
29 as a bug).
30
27 You need the following files in your source tree, or in a directory 31 You need the following files in your source tree, or in a directory
28 in your include path (e.g. in libev/ when using -Ilibev): 32 in your include path (e.g. in libev/ when using -Ilibev):
29 33
30 ev.h 34 ev.h
31 ev.c 35 ev.c
32 ev_vars.h 36 ev_vars.h
33 ev_wrap.h 37 ev_wrap.h
34 ev_win32.c 38
39 ev_win32.c required on win32 platforms only
35 40
36 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)
37 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)
38 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)
39 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)
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55 You need the following additional files for this: 60 You need the following additional files for this:
56 61
57 event.h 62 event.h
58 event.c 63 event.c
59 64
65AUTOCONF SUPPORT
66
67 Instead of using EV_STANDALONE=1 and providing your config in whatever
68 way you want, you can also m4_include([libev.m4]) in your configure.ac
69 and leave EV_STANDALONE off. ev.c will then include "config.h" and
70 configure itself accordingly.
71
60PREPROCESSOR SYMBOLS 72PREPROCESSOR SYMBOLS
61 73
62 Libev can be configured via a variety of preprocessor symbols you have to define 74 Libev can be configured via a variety of preprocessor symbols you have to define
63 before including any of its files. The default is not to build for mulciplicity 75 before including any of its files. The default is not to build for multiplicity
64 and only include the select backend. 76 and only include the select backend.
65 77
66 EV_STANDALONE 78 EV_STANDALONE
67 79
68 Must always be "1", which keeps libev from including config.h or 80 Must always be "1", which keeps libev from including config.h or
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124 otherwise another method will be used as fallback. This is the 136 otherwise another method will be used as fallback. This is the
125 preferred backend for BSD and BSd-like systems. Darwin brokenness 137 preferred backend for BSD and BSd-like systems. Darwin brokenness
126 will be detected at runtime and routed around by disabling this 138 will be detected at runtime and routed around by disabling this
127 backend. 139 backend.
128 140
141 EV_H
142
143 The name of the ev.h header file used to include it. The default
144 if undefined is <ev.h> in event.h and "ev.h" in ev.c. This can
145 be used to virtually rename the ev.h header file in case of
146 conflicts.
147
148 EV_EVENT_H
149
150 Similarly to EV_H, this macro cna be used to override event.c's idea
151 of how the event.h header can be found.
152
153 EV_PROTOTYPES
154
155 If defined to be "0", then "ev.h" will not define any function
156 prototypes, but still define all the structs and other
157 symbols. This is occasionally useful.
158
159 EV_MULTIPLICITY
160
161 If undefined or defined to "1", then all event-loop-specific
162 functions will have the "struct ev_loop *" as first argument, and
163 you can create additional independent event loops. Otherwise there
164 will be no support for multiple event loops and there is no first
165 event loop pointer argument. Instead, all functions act on the
166 single default loop.
167
168 EV_PERIODICS
169
170 If undefined or defined to be "1", then periodic timers are
171 supported, otherwise not. This saves a few kb of code.
172
129 EV_COMMON 173 EV_COMMON
130 174
131 By default, all watchers have a "void *data" member. By redefining 175 By default, all watchers have a "void *data" member. By redefining
132 this macro to a something else you can include more and other types 176 this macro to a something else you can include more and other types
133 of members. You have to define it each time you include one of the 177 of members. You have to define it each time you include one of the
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137 181
138 #define EV_COMMON \ 182 #define EV_COMMON \
139 SV *self; /* contains this struct */ \ 183 SV *self; /* contains this struct */ \
140 SV *cb_sv, *fh /* note no trailing ";" */ 184 SV *cb_sv, *fh /* note no trailing ";" */
141 185
142 EV_PROTOTYPES 186 EV_CB_DECLARE(type)
187 EV_CB_INVOKE(watcher,revents)
188 ev_set_cb(ev,cb)
143 189
144 If defined to be "0", then "ev.h" will not define any function 190 Can be used to change the callback member declaration in each
145 prototypes, but still define all the structs and other 191 watcher, and the way callbacks are invoked and set. Must expand
146 symbols. This is occasionally useful. 192 to a struct member definition and a statement, respectively. See
147 193 the ev.v header file for their default definitions. One possible
148 EV_MULTIPLICITY 194 use for overriding these is to avoid the ev_loop pointer as first
149 195 argument in all cases, or to use method calls instead of plain
150 If undefined or defined to "1", then all event-loop-specific 196 function calls in C++.
151 functions will have the "struct ev_loop *" as first argument, and
152 you can create additional independent event loops. Otherwise there
153 will be no support for multiple event loops and there is no first
154 event loop pointer argument. Instead, all functions act on the
155 single default loop.
156 197
157EXAMPLES 198EXAMPLES
158 199
159 For a real-world example of a program the includes libev 200 For a real-world example of a program the includes libev
160 verbatim, you can have a look at the EV perl module 201 verbatim, you can have a look at the EV perl module

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