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.
FILESETS
+ CORE EVENT LOOP
+
To include only the libev core (all the ev_* functions):
#define EV_STANDALONE 1
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.c
ev_vars.h
ev_wrap.h
+ ev_win32.c
+
+ 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)
+
+ "ev.c" includes the backend files directly when enabled.
+
+ LIBEVENT COMPATIBILITY API
To include the libevent compatibility API, also include:
done: if no other method takes over, select will be it. Otherwise
the select backend will not be compiled in.
+ EV_SELECT_USE_WIN32_HANDLES
+
+ When defined to 1, the select backend will assume that select
+ doesn't understand file descriptors but wants osf handles on
+ win32 (this is the case when the select to be used is the winsock
+ select). This means that it will call _get_osfhandle on the fd to
+ convert it to an OS handle. Should not be defined on non-win32
+ platforms.
+
EV_USE_POLL
If defined to be "1", libev will compile in support for the poll(2)
#define EV_COMMON \
SV *self; /* contains this struct */ \
- SV *cb_sv, *fh;
+ SV *cb_sv, *fh /* note no trailing ";" */
EV_PROTOTYPES
For a real-world example of a program the includes libev
verbatim, you can have a look at the EV perl module
(http://software.schmorp.de/pkg/EV.html). It has the libev files in
- the liev/ subdirectory and includes them in the EV/EVAPI.h (public
- interface) and EV.xs (implementation) files. Only EV.xs file will be
- compiled.
+ the libev/ subdirectory and includes them in the EV/EVAPI.h (public
+ interface) and EV.xs (implementation) files. Only the EV.xs file will
+ be compiled.