From 12bed479ec5777392077ac70c0996bbc44bd5a20 Mon Sep 17 00:00:00 2001
From: akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 2 Jul 2005 06:22:14 +0000
Subject: [PATCH] * configure.in: check select_large_fdset.

* eval.c: use select_large_fdset to support large file descriptors
  on Solaris.  [ruby-dev:26404]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@8695 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog    |  7 +++++++
 configure.in |  2 +-
 eval.c       | 10 ++++++++++
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 8c35ea54df..919e1daa12 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+Sat Jul  2 15:19:41 2005  Tanaka Akira  <akr@m17n.org>
+
+	* configure.in: check select_large_fdset.
+
+	* eval.c: use select_large_fdset to support large file descriptors
+	  on Solaris.  [ruby-dev:26404]
+
 Fri Jul  1 17:55:08 2005  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* bignum.c (rb_big_neg): may be accessing bogus pointer value.
diff --git a/configure.in b/configure.in
index eab3a824ac..2028f89a77 100644
--- a/configure.in
+++ b/configure.in
@@ -492,7 +492,7 @@ AC_CHECK_FUNCS(fmod killpg wait4 waitpid fork spawnv syscall chroot fsync getcwd
 	      getpriority getrlimit setrlimit\
 	      dlopen sigprocmask sigaction _setjmp\
 	      setsid telldir seekdir fchmod mktime timegm cosh sinh tanh\
-	      setuid setgid daemon \
+	      setuid setgid daemon select_large_fdset \
 	      _UNW_createContextForSelf)
 AC_ARG_ENABLE(setreuid,
        [  --enable-setreuid       use setreuid()/setregid() according to need even if obsolete.],
diff --git a/eval.c b/eval.c
index 442b57bdb2..4b946c0e6b 100644
--- a/eval.c
+++ b/eval.c
@@ -179,6 +179,16 @@ typedef jmp_buf rb_jmpbuf_t;
 #include <sys/select.h>
 #endif
 
+/*
+  Solaris sys/select.h switches select to select_large_fdset to support larger
+  file descriptors if FD_SETSIZE is larger than 1024 on 32bit environment.
+  But Ruby doesn't change FD_SETSIZE because fd_set is allocated dynamically.
+  So following definition is required to use select_large_fdset.
+*/
+#ifdef HAVE_SELECT_LARGE_FDSET
+#define select(n, r, w, e, t) select_large_fdset(n, r, w, e, t)
+#endif
+
 #ifdef HAVE_SYS_PARAM_H
 #include <sys/param.h>
 #endif