8046148: JEP 158: Unified JVM Logging

Reviewed-by: coleenp, sla

hotspot/src/share/vm/logging/logFileStreamOutput.hpp

@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+#ifndef SHARE_VM_LOGGING_LOGFILESTREAMOUTPUT_HPP
+#define SHARE_VM_LOGGING_LOGFILESTREAMOUTPUT_HPP
+
+#include "logging/logDecorators.hpp"
+#include "logging/logOutput.hpp"
+#include "utilities/globalDefinitions.hpp"
+
+class LogDecorations;
+
+// Base class for all FileStream-based log outputs.
+class LogFileStreamOutput : public LogOutput {
+ protected:
+  FILE*               _stream;
+  size_t              _decorator_padding[LogDecorators::Count];
+
+  LogFileStreamOutput(FILE *stream) : _stream(stream) {
+    for (size_t i = 0; i < LogDecorators::Count; i++) {
+      _decorator_padding[i] = 0;
+    }
+    _decorator_padding[LogDecorators::level_decorator] = 7;
+  }
+
+ public:
+  virtual int write(const LogDecorations &decorations, const char* msg);
+};
+
+class LogStdoutOutput : public LogFileStreamOutput {
+  friend class LogOutput;
+ private:
+  static LogStdoutOutput _instance;
+  LogStdoutOutput() : LogFileStreamOutput(stdout) {
+    set_config_string("all=off");
+  }
+  virtual bool initialize(const char* options) {
+    return false;
+  }
+ public:
+  virtual const char* name() const {
+    return "stdout";
+  }
+};
+
+class LogStderrOutput : public LogFileStreamOutput {
+  friend class LogOutput;
+ private:
+  static LogStderrOutput _instance;
+  LogStderrOutput() : LogFileStreamOutput(stderr) {
+    set_config_string("all=warning");
+  }
+  virtual bool initialize(const char* options) {
+    return false;
+  }
+ public:
+  virtual const char* name() const {
+    return "stderr";
+  }
+};
+
+#endif // SHARE_VM_LOGGING_LOGFILESTREAMOUTPUT_HPP