src/solaris/native/java/net/net_util_md.h

Print this page
rev 8822 : 8024854: PPC64: Basic changes and files to build the class library on AIX
Reviewed-by: alanb, prr, sla, chegar, michaelm, mullan, art
Contributed-by: luchsh@linux.vnet.ibm.com, spoole@linux.vnet.ibm.com, thomas.stuefe@sap.com

@@ -35,11 +35,21 @@
 #ifndef USE_SELECT
 #include <sys/poll.h>
 #endif
 
 
-#if defined(__linux__) || defined(MACOSX)
+/*
+   AIX needs a workaround for I/O cancellation, see:
+   http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp?topic=/com.ibm.aix.basetechref/doc/basetrf1/close.htm
+   ...
+   The close subroutine is blocked until all subroutines which use the file
+   descriptor return to usr space. For example, when a thread is calling close
+   and another thread is calling select with the same file descriptor, the
+   close subroutine does not return until the select call returns.
+   ...
+*/
+#if defined(__linux__) || defined(MACOSX) || defined (_AIX)
 extern int NET_Timeout(int s, long timeout);
 extern int NET_Read(int s, void* buf, size_t len);
 extern int NET_RecvFrom(int s, void *buf, int len, unsigned int flags,
        struct sockaddr *from, int *fromlen);
 extern int NET_ReadV(int s, const struct iovec * vector, int count);