From f2aa0e5b0c0fb80f9400fae1bdc2bfccedbc314b Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 5 Aug 2008 03:44:09 +0000
Subject: [PATCH] * io.c (retry_sendfile, retry_read): ENOSYS and EWOULDBLOCK
 are not   defined on every platforms.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@18364 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog |  5 +++++
 io.c      | 22 +++++++++++++++++-----
 2 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index d20ce00b9f..4b61384482 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue Aug  5 12:43:47 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* io.c (retry_sendfile, retry_read): ENOSYS and EWOULDBLOCK are not
+	  defined on every platforms.
+
 Tue Aug  5 12:34:49 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* transcode_data.h (TRANSCODE_ERROR): common transcode failure
diff --git a/io.c b/io.c
index 72db537873..96e75137ac 100644
--- a/io.c
+++ b/io.c
@@ -6590,9 +6590,16 @@ retry_sendfile:
         }
     }
     if (ss == -1) {
-        if (errno == EINVAL || errno == ENOSYS)
+        switch (errno) {
+	  case EINVAL:
+#ifdef ENOSYS
+	  case ENOSYS:
+#endif
             return 0;
-        if (errno == EAGAIN || errno == EWOULDBLOCK) {
+	  case EAGAIN:
+#if defined(EWOULDBLOCK) && EWOULDBLOCK != EAGAIN
+	  case EWOULDBLOCK:
+#endif
             if (copy_stream_wait_write(stp) == -1)
                 return -1;
             if (RUBY_VM_INTERRUPTED(stp->th))
@@ -6626,12 +6633,17 @@ retry_read:
         return 0;
     }
     if (ss == -1) {
-        if (errno == EAGAIN || errno == EWOULDBLOCK) {
+        switch (errno) {
+	  case EAGAIN:
+#if defined(EWOULDBLOCK) && EWOULDBLOCK != EAGAIN
+	  case EWOULDBLOCK:
+#endif
             if (copy_stream_wait_read(stp) == -1)
                 return -1;
             goto retry_read;
-        }
-        if (errno == ENOSYS) {
+#ifdef ENOSYS
+	  case ENOSYS:
+#endif
             stp->notimp = "pread";
             return -1;
         }