*** empty log message ***

[software/libev.git] / README.embed

diff --git a/README.embed b/README.embed
index e10ad1d633c779003cb5dd05c60e12d8d2f22ac5..b7e3ea473bf5233b95fbcc21a942545397496618 100644 (file)
--- a/README.embed
+++ b/README.embed
@@ -106,7 +106,17 @@ PREPROCESSOR SYMBOLS
        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
+    EV_SELECT_USE_FD_SET
+
+       If defined to 1, then the select backend will use the system fd_set
+       structure. This is useful if libev doesn't compile due to a missing
+       NFDBITS or fd_mask definition or it misguesses the bitset layout on
+       exotic systems. This usually limits the range of file descriptors
+       to some low limit such as 1024 or might have other limitations
+       (winsocket only allows 64 sockets). The FD_SETSIZE macro, set
+       before compilation, might influence the size of the fd_set used.
+
+    EV_SELECT_IS_WINSOCKET
 
        When defined to 1, the select backend will assume that select
        doesn't understand file descriptors but wants osf handles on
@@ -118,9 +128,8 @@ PREPROCESSOR SYMBOLS
     EV_USE_POLL
 
        If defined to be "1", libev will compile in support for the poll(2)
-       backend. No attempt at autodetection will be done. poll usually
-       performs worse than select, so its not enabled by default (it is
-       also slightly less portable).
+       backend. Otherwise it will be enabled on non-win32 platforms. It
+       takes precedence over select.
 
     EV_USE_EPOLL
 
@@ -134,10 +143,15 @@ 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_USE_DEVPOLL
+    EV_USE_PORTS
+    
+       reserved for future expansion, works like the USE symbols above.
+
     EV_H
 
         The name of the ev.h header file used to include it. The default