Fix typos.

[software/libev.git] / README.embed

diff --git a/README.embed b/README.embed
index fca648e61947390c5ca75a82b8d71ac1f425ff22..3c15d7658dc612b302990967e5856a335995248a 100644 (file)
--- a/README.embed
+++ b/README.embed
@@ -1,6 +1,6 @@
 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.
 
@@ -17,11 +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
-    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):
 
@@ -29,9 +35,10 @@ FILESETS
         ev.c
         ev_vars.h
         ev_wrap.h
-        ev_win32.c
 
-        ev_select.c     only when select backend is enabled (which is by default)
+        ev_win32.c      required on win32 platforms only
+
+        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)
@@ -55,10 +62,17 @@ FILESETS
         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
-    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
@@ -120,22 +134,21 @@ PREPROCESSOR SYMBOLS
        If defined to be "1", libev will compile in support for the BSD
        style kqueue backend. Its availability will be detected at runtime,
        otherwise another method will be used as fallback. This is the
-       preferred backend for BSD and BSd-like systems. Darwin brokenness
+       preferred backend for BSD and BSD-like systems. Darwin brokenness
        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 /* note no trailing ";" */
+    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
 
@@ -152,6 +165,36 @@ PREPROCESSOR SYMBOLS
        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