EMBEDDING THE LIBEV CODE INTO YOUR OWN PROGRAMS
- Instead of building the libev library you cna also include the code
+ Instead of building the libev library you can also include the code
as-is into your programs. To update, you only have to copy a few files
into your source tree.
This will automatically include ev.h, too, and should be done in a
single C source file only to provide the function implementations. To
- use it, do the same for ev.h in all users:
+ use it, do the same for ev.h in all files wishing to use this API
+ (best done by writing a wrapper around ev.h that you can include
+ instead and where you can put other configuration options):
#define EV_STANDALONE 1
#include "ev.h"
+ Both header files and implementation files can be compiled with a C++
+ compiler (at least, thats a stated goal, and breakage will be treated
+ as a bug).
+
You need the following files in your source tree, or in a directory
in your include path (e.g. in libev/ when using -Ilibev):
ev_wrap.h
ev_win32.c
- ev_select.c only when select backend is enabled (which is by default)
+ ev_select.c only when select backend is enabled (which is is by default)
ev_poll.c only when poll backend is enabled (disabled by default)
ev_epoll.c only when the epoll backend is enabled (disabled by default)
ev_kqueue.c only when the kqueue backend is enabled (disabled by default)
will be detected at runtime and routed around by disabling this
backend.
+ EV_H
+
+ The name of the ev.h header file used to include it. The default
+ if undefined is <ev.h> in event.h and "ev.h" in ev.c. This can
+ be used to virtually rename the ev.h header file in case of
+ conflicts.
+
+ EV_EVENT_H
+
+ Similarly to EV_H, this macro cna be used to override event.c's idea
+ of how the event.h header can be found.
+
EV_COMMON
By default, all watchers have a "void *data" member. By redefining
event loop pointer argument. Instead, all functions act on the
single default loop.
+ EV_CB_DECLARE(type)
+ EV_CB_INVOKE(watcher,revents)
+ ev_set_cb(ev,cb)
+
+ Can be used to change the callback member declaration in each
+ watcher, and the way callbacks are invoked and set. Must expand
+ to a struct member definition and a statement, respectively. See
+ the ev.v header file for their default definitions. One possible
+ use for overriding these is to avoid the ev_loop pointer as first
+ argument in all cases, or to use method calls instead of plain
+ function calls in C++.
+
EXAMPLES
For a real-world example of a program the includes libev