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remm pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/tomcat.git
The following commit(s) were added to refs/heads/master by this push:
new f5f2b62 BZ63949: Restore write loop which was present in the selector
code
f5f2b62 is described below
commit f5f2b62670f972fc6a857788084e4352f2d4cd87
Author: remm <r...@apache.org>
AuthorDate: Fri Nov 22 17:04:03 2019 +0100
BZ63949: Restore write loop which was present in the selector code
The issue was introduced in 9.0.20 by
https://github.com/apache/tomcat/commit/4377d2db40
Thanks to Justin Wong for the testing and finding the root cause.
---
java/org/apache/tomcat/util/net/NioEndpoint.java | 10 +++++++---
webapps/docs/changelog.xml | 4 ++++
2 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/java/org/apache/tomcat/util/net/NioEndpoint.java
b/java/org/apache/tomcat/util/net/NioEndpoint.java
index 7501647..fc61310 100644
--- a/java/org/apache/tomcat/util/net/NioEndpoint.java
+++ b/java/org/apache/tomcat/util/net/NioEndpoint.java
@@ -1273,9 +1273,13 @@ public class NioEndpoint extends
AbstractJsseEndpoint<NioChannel,SocketChannel>
// registered for write once as both container and user code
can trigger
// write registration.
} else {
- if (socket.write(from) == -1) {
- throw new EOFException();
- }
+ int n = 0;
+ do {
+ n = socket.write(from);
+ if (n == -1) {
+ throw new EOFException();
+ }
+ } while (n > 0 && from.hasRemaining());
}
updateLastWrite();
}
diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
index bad8fa7..486fe95 100644
--- a/webapps/docs/changelog.xml
+++ b/webapps/docs/changelog.xml
@@ -55,6 +55,10 @@
Harmonize maxConnections default value to 8192 across all connectors.
(remm)
</fix>
+ <fix>
+ <bug>63949</bug>: Fix non blocking write problems with NIO due to the
+ need for a write loop. (remm)
+ </fix>
</changelog>
</subsection>
<subsection name="Web applications">
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