re GNATS java.io/203 (File.createTempFile doesn't close descriptor)

2000-06-27  Andrew Haley  <aph@cygnus.com>

       * java/io/File.java (createTempFile): Close the FileDescriptor
       used to create a temp file.  Fixes some of PR 203.
       * java/io/natFileDescriptorPosix.cc (open): Call garbage
       collection if we run out of file handles.

From-SVN: r34755

libjava/ChangeLog

+2000-06-27  Andrew Haley  <aph@cygnus.com>
+
+       * java/io/File.java (createTempFile): Close the FileDescriptor
+       used to create a temp file.  Fixes some of PR 203.
+       * java/io/natFileDescriptorPosix.cc (open): Call garbage
+       collection if we run out of file handles.
+
 2000-06-28  Warren Levy  <warrenl@cygnus.com>
 
 	* gnu/java/security/provider/Gnu.java: New file.

libjava/java/io/File.java

@@ -260,7 +260,9 @@ public class File implements Serializable
 	String l = prefix + t.substring(t.length() - 6) + suffix;
 	try
 	  {
-	    desc.open (l, FileDescriptor.WRITE | FileDescriptor.EXCL);
+	    desc = new FileDescriptor 
+	      (l, FileDescriptor.WRITE | FileDescriptor.EXCL);
+	    desc.close ();
 	    ret.setPath(l);
 	    return ret;
 	  }

libjava/java/io/natFileDescriptorPosix.cc

@@ -43,6 +43,7 @@ details.  */
 #include <java/io/EOFException.h>
 #include <java/lang/ArrayIndexOutOfBoundsException.h>
 #include <java/lang/NullPointerException.h>
+#include <java/lang/System.h>
 #include <java/lang/String.h>
 #include <java/lang/Thread.h>
 #include <java/io/FileNotFoundException.h>
@@ -105,6 +106,13 @@ java::io::FileDescriptor::open (jstring path, jint jflags)
     }
 
   int fd = ::open (buf, flags, mode);
+  if (fd == -1 && errno == EMFILE)
+    {
+      // Because finalize () calls close () we might be able to continue.
+      java::lang::System::gc ();
+      java::lang::System::runFinalization ();
+      fd = ::open (buf, flags, mode);
+    }
   if (fd == -1)
     {
       char msg[MAXPATHLEN + 200];