fix stop function of idle/check/prepare/child

[software/libev.git] / README.embed

diff --git a/README.embed b/README.embed
index b6322d9ef01bdcc448760ebf470d44884cbf7907..925c13e881aefafec2009487baec13a5e8c21e5f 100644 (file)
--- a/README.embed
+++ b/README.embed
@@ -1,6 +1,6 @@
 EMBEDDING THE LIBEV CODE INTO YOUR OWN PROGRAMS
 
 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.
 
     as-is into your programs. To update, you only have to copy a few files
     into your source tree.
 


@@ -8,6 +8,8 @@ EMBEDDING THE LIBEV CODE INTO YOUR OWN PROGRAMS
 
 FILESETS
 
 
 FILESETS
 

+    CORE EVENT LOOP
+

     To include only the libev core (all the ev_* functions):
 
         #define EV_STANDALONE   1
     To include only the libev core (all the ev_* functions):
 
         #define EV_STANDALONE   1


@@ -15,11 +17,17 @@ FILESETS
 
     This will automatically include ev.h, too, and should be done in a
     single C source file only to provide the function implementations. To
 
     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"
 
 
         #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):
 
     You need the following files in your source tree, or in a directory
     in your include path (e.g. in libev/ when using -Ilibev):
 


@@ -27,6 +35,16 @@ FILESETS
         ev.c
         ev_vars.h
         ev_wrap.h
         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:
 
 
     To include the libevent compatibility API, also include:
 


@@ -43,10 +61,17 @@ FILESETS
         event.h
         event.c
 
         event.h
         event.c
 

+AUTOCONF SUPPORT
+
+    Instead of using EV_STANDALONE=1 and providing your config in whatever
+    way you want, you can also m4_include([libev.m4]) in your configure.ac
+    and leave EV_STANDALONE off. ev.c will then include "config.h" and
+    configure itself accordingly.
+

 PREPROCESSOR SYMBOLS
 
     Libev can be configured via a variety of preprocessor symbols you have to define
 PREPROCESSOR SYMBOLS
 
     Libev can be configured via a variety of preprocessor symbols you have to define

-    before including any of its files. The default is not to build for mulciplicity
+    before including any of its files. The default is not to build for multiplicity

     and only include the select backend.
 
     EV_STANDALONE
     and only include the select backend.
 
     EV_STANDALONE


@@ -80,6 +105,15 @@ PREPROCESSOR SYMBOLS
        done: if no other method takes over, select will be it. Otherwise
        the select backend will not be compiled in.
 
        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)
     EV_USE_POLL
 
        If defined to be "1", libev will compile in support for the poll(2)


@@ -103,18 +137,17 @@ PREPROCESSOR SYMBOLS
        will be detected at runtime and routed around by disabling this
        backend.
 
        will be detected at runtime and routed around by disabling this
        backend.
 

-    EV_COMMON
- 
-       By default, all watchers have a "void *data" member. By redefining
-       this macro to a something else you can include more and other types
-       of members. You have to define it each time you include one of the
-       files, though, and it must be identical each time.
+    EV_H

 
 

-       For example, the perl EV module uses this:
+        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.

 
 

-           #define EV_COMMON                       \
-             SV *self; /* contains this struct */  \
-             SV *cb_sv, *fh;
+    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_PROTOTYPES
 
 
     EV_PROTOTYPES
 


@@ -131,12 +164,42 @@ PREPROCESSOR SYMBOLS
        event loop pointer argument. Instead, all functions act on the
        single default loop.
 
        event loop pointer argument. Instead, all functions act on the
        single default loop.
 

+    EV_PERIODICS
+
+       If undefined or defined to be "1", then periodic timers are
+       supported, otherwise not. This saves a few kb of code.
+
+    EV_COMMON
+ 
+       By default, all watchers have a "void *data" member. By redefining
+       this macro to a something else you can include more and other types
+       of members. You have to define it each time you include one of the
+       files, though, and it must be identical each time.
+
+       For example, the perl EV module uses this:
+
+           #define EV_COMMON                       \
+             SV *self; /* contains this struct */  \
+             SV *cb_sv, *fh /* note no trailing ";" */
+
+    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
     verbatim, you can have a look at the EV perl module
     (http://software.schmorp.de/pkg/EV.html).  It has the libev files in
 EXAMPLES
 
     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.