Misc (re #1882): Updated ioqueue epoll related vars in build config, e.g: update 'ac_linux_poll' value, introduce PJ_HAS_LINUX_EPOLL flag (thanks George Joseph for the patch).

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@5247 74dad513-b988-da41-8d7b-12977e46ad98

README.txt

@@ -463,6 +463,7 @@ Using Default Settings
    $ ./configure --help
    ...
    Optional Features:
+   --enable-epoll           Use epoll on Linux instead of select
    --disable-floating-point	Disable floating point where possible
    --disable-sound 		Exclude sound (i.e. use null sound)
    --disable-small-filter 	Exclude small filter in resampling

aconfigure

@@ -622,7 +622,6 @@ ac_subst_vars='LTLIBOBJS
 LIBOBJS
 ac_main_obj
 ac_host
-ac_linux_poll
 opus_present
 opus_h_present
 ac_no_opus
@@ -688,6 +687,7 @@ ac_external_srtp
 ac_external_gsm
 ac_external_speex
 ac_shared_libraries
+ac_linux_poll
 ac_os_objs
 EGREP
 GREP
@@ -5681,6 +5681,7 @@ fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking ioqueue backend" >&5
 $as_echo_n "checking ioqueue backend... " >&6; }
 # Check whether --enable-epoll was given.
@@ -5689,12 +5690,16 @@ if test "${enable_epoll+set}" = set; then :
 		ac_os_objs=ioqueue_epoll.o
 		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: /dev/epoll" >&5
 $as_echo "/dev/epoll" >&6; }
+		$as_echo "#define PJ_HAS_LINUX_EPOLL 1" >>confdefs.h
+
+		ac_linux_poll=epoll
 
 else
 
 		ac_os_objs=ioqueue_select.o
-	        { $as_echo "$as_me:${as_lineno-$LINENO}: result: select()" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: select()" >&5
 $as_echo "select()" >&6; }
+		ac_linux_poll=select
 
 fi
 
@@ -8412,8 +8417,6 @@ esac
 
 
 
-ac_linux_poll=select
-
 ac_host=unix
 
 

aconfigure.ac

@@ -410,6 +410,7 @@ dnl ######################
 dnl # ioqueue selection
 dnl # 
 AC_SUBST(ac_os_objs)
+AC_SUBST(ac_linux_poll)
 AC_MSG_CHECKING([ioqueue backend])
 AC_ARG_ENABLE(epoll,
 	      AC_HELP_STRING([--enable-epoll],
@@ -417,10 +418,13 @@ AC_ARG_ENABLE(epoll,
 	      [
 		ac_os_objs=ioqueue_epoll.o
 		AC_MSG_RESULT([/dev/epoll])
+		AC_DEFINE(PJ_HAS_LINUX_EPOLL,1)
+		ac_linux_poll=epoll
 	      ],
 	      [
 		ac_os_objs=ioqueue_select.o
-	        AC_MSG_RESULT([select()]) 
+		AC_MSG_RESULT([select()])
+		ac_linux_poll=select
 	      ])
 
 AC_SUBST(ac_shared_libraries)
@@ -1879,7 +1883,6 @@ esac
 
 
 AC_SUBST(target)
-AC_SUBST(ac_linux_poll,select)
 AC_SUBST(ac_host,unix)
 AC_SUBST(ac_main_obj)
 case $target in

pjlib/include/pj/compat/os_auto.h.in

@@ -128,6 +128,9 @@
  */
 #undef PJ_SELECT_NEEDS_NFDS
 
+/* Was Linux epoll support enabled */
+#undef PJ_HAS_LINUX_EPOLL
+
 /* Is errno a good way to retrieve OS errors?
  */
 #undef PJ_HAS_ERRNO_VAR