. Fix a crash under heavy network load by reverting to using poll(2) rather

  than select(2).

PR:		175417
Based on the patch by:	Phil Phillips <pphillips@experts-exchange.com>

2 files changed, 86 insertions, 0 deletions

diff --git a/java/openjdk7/Makefile b/java/openjdk7/Makefile
index ac381bea165d..1cc39fa5d116 100644
--- a/java/openjdk7/Makefile
+++ b/java/openjdk7/Makefile
@@ -7,6 +7,7 @@
 
 PORTNAME=	openjdk
 PORTVERSION=	${JDK_MAJOR_VERSION}.${PORT_MINOR_VERSION}.${PORT_BUILD_NUMBER}
+PORTREVISION=	1
 CATEGORIES=	java devel
 MASTER_SITES=	http://download.java.net/openjdk/jdk${JDK_MAJOR_VERSION}u${JDK_MINOR_VERSION}/promoted/b${JDK_BUILD_NUMBER}/ \
 		http://download.java.net/jaxp/1.4.5/:jaxp \
diff --git a/java/openjdk7/files/patch-bsd_close.c b/java/openjdk7/files/patch-bsd_close.c
new file mode 100644
index 000000000000..8edb10f6d2f8
--- /dev/null
+++ b/java/openjdk7/files/patch-bsd_close.c
@@ -0,0 +1,85 @@
+--- jdk/src/solaris/native/java/net/bsd_close.c	Wed Jan 16 16:04:50 2013 -0800
++++ jdk/src/solaris/native/java/net/bsd_close.c	Thu Jan 17 22:14:02 2013 -0800
+@@ -345,6 +345,76 @@
+  * signal other than our wakeup signal.
+  */
+ int NET_Timeout(int s, long timeout) {
++/*
++ * On MacOS X, poll(2) is not working correctly, so a select(2) based
++ * implementation is preferred.  See
++ *
++ * http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7131399
++ *
++ * However, on FreeBSD, the select(2) based implementation can cause
++ * crashes under load and poll(2) is preferred.  See
++ *
++ * http://docs.freebsd.org/cgi/getmsg.cgi?fetch=215525+0+current/freebsd-java
++ *
++ * Other *BSD should adjust as appropriate.
++ */
++#ifdef __FreeBSD__
++    long prevtime = 0, newtime;
++    struct timeval t;
++    fdEntry_t *fdEntry = getFdEntry(s);
++
++    /*
++     * Check that fd hasn't been closed.
++     */
++    if (fdEntry == NULL) {
++        errno = EBADF;
++        return -1;
++    }
++
++    /*
++     * Pick up current time as may need to adjust timeout
++     */
++    if (timeout > 0) {
++        gettimeofday(&t, NULL);
++        prevtime = t.tv_sec * 1000  +  t.tv_usec / 1000;
++    }
++
++    for(;;) {
++        struct pollfd pfd;
++        int rv;
++        threadEntry_t self;
++
++        /*
++         * Poll the fd. If interrupted by our wakeup signal
++         * errno will be set to EBADF.
++         */
++        pfd.fd = s;
++        pfd.events = POLLIN | POLLERR;
++
++        startOp(fdEntry, &self);
++        rv = poll(&pfd, 1, timeout);
++        endOp(fdEntry, &self);
++
++        /*
++         * If interrupted then adjust timeout. If timeout
++         * has expired return 0 (indicating timeout expired).
++         */
++        if (rv < 0 && errno == EINTR) {
++            if (timeout > 0) {
++                gettimeofday(&t, NULL);
++                newtime = t.tv_sec * 1000  +  t.tv_usec / 1000;
++                timeout -= newtime - prevtime;
++                if (timeout <= 0) {
++                    return 0;
++                }
++                prevtime = newtime;
++            }
++        } else {
++            return rv;
++        }
++
++    }
++#else
+     long prevtime = 0, newtime;
+     struct timeval t, *tp = &t;
+     fdEntry_t *fdEntry = getFdEntry(s);
+@@ -414,4 +484,5 @@
+         }
+ 
+     }
++#endif
+ }