diff -r fd16c54261b3 -r 489c9b5090e2 hotspot/src/share/vm/utilities/xmlstream.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/utilities/xmlstream.cpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,470 @@
+/*
+ * Copyright 2002-2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+#include "incls/_precompiled.incl"
+#include "incls/_xmlstream.cpp.incl"
+
+void xmlStream::initialize(outputStream* out) {
+  _out = out;
+  _last_flush = 0;
+  _markup_state = BODY;
+  _text_init._outer_xmlStream = this;
+  _text = &_text_init;
+
+#ifdef ASSERT
+  _element_depth = 0;
+  int   init_len = 100;
+  char* init_buf = NEW_C_HEAP_ARRAY(char, init_len);
+  _element_close_stack_low  = init_buf;
+  _element_close_stack_high = init_buf + init_len;
+  _element_close_stack_ptr  = init_buf + init_len - 1;
+  _element_close_stack_ptr[0] = '\0';
+#endif
+
+  // Make sure each log uses the same base for time stamps.
+  if (is_open()) {
+    _out->time_stamp().update_to(1);
+  }
+}
+
+#ifdef ASSERT
+xmlStream::~xmlStream() {
+  FREE_C_HEAP_ARRAY(char, _element_close_stack_low);
+}
+#endif
+
+// Pass the given chars directly to _out.
+void xmlStream::write(const char* s, size_t len) {
+  if (!is_open())  return;
+
+  out()->write(s, len);
+}
+
+
+// Pass the given chars directly to _out, except that
+// we watch for special "<&>" chars.
+// This is suitable for either attribute text or for body text.
+// We don't fool with "<![CDATA[" quotes, just single-character entities.
+// This makes it easier for dumb tools to parse the output.
+void xmlStream::write_text(const char* s, size_t len) {
+  if (!is_open())  return;
+
+  size_t written = 0;
+  // All normally printed material goes inside XML quotes.
+  // This leaves the output free to include markup also.
+  // Scan the string looking for inadvertant "<&>" chars
+  for (size_t i = 0; i < len; i++) {
+    char ch = s[i];
+    // Escape special chars.
+    const char* esc = NULL;
+    switch (ch) {
+      // These are important only in attrs, but we do them always:
+    case '\'': esc = "&apos;"; break;
+    case '"':  esc = "&quot;"; break;
+    case '<':  esc = "&lt;";   break;
+    case '&':  esc = "&amp;";  break;
+      // This is a freebie.
+    case '>':  esc = "&gt;";   break;
+    }
+    if (esc != NULL) {
+      if (written < i) {
+        out()->write(&s[written], i - written);
+        written = i;
+      }
+      out()->print_raw(esc);
+      written++;
+    }
+  }
+
+  // Print the clean remainder.  Usually, it is all of s.
+  if (written < len) {
+    out()->write(&s[written], len - written);
+  }
+}
+
+// ------------------------------------------------------------------
+// Outputs XML text, with special characters quoted.
+void xmlStream::text(const char* format, ...) {
+  va_list ap;
+  va_start(ap, format);
+  va_text(format, ap);
+  va_end(ap);
+}
+
+#define BUFLEN 2*K   /* max size of output of individual print methods */
+
+// ------------------------------------------------------------------
+void xmlStream::va_tag(bool push, const char* format, va_list ap) {
+  assert_if_no_error(!inside_attrs(), "cannot print tag inside attrs");
+  char buffer[BUFLEN];
+  size_t len;
+  const char* kind = do_vsnprintf(buffer, BUFLEN, format, ap, false, len);
+  see_tag(kind, push);
+  print_raw("<");
+  write(kind, len);
+  _markup_state = (push ? HEAD : ELEM);
+}
+
+#ifdef ASSERT
+/// Debugging goo to make sure element tags nest properly.
+
+// ------------------------------------------------------------------
+void xmlStream::see_tag(const char* tag, bool push) {
+  assert_if_no_error(!inside_attrs(), "cannot start new element inside attrs");
+  if (!push)  return;
+
+  // tag goes up until either null or space:
+  const char* tag_end = strchr(tag, ' ');
+  size_t tag_len = (tag_end == NULL) ? strlen(tag) : tag_end - tag;
+  assert(tag_len > 0, "tag must not be empty");
+  // push the tag onto the stack, pulling down the pointer
+  char* old_ptr  = _element_close_stack_ptr;
+  char* old_low  = _element_close_stack_low;
+  char* push_ptr = old_ptr - (tag_len+1);
+  if (push_ptr < old_low) {
+    int old_len = _element_close_stack_high - old_ptr;
+    int new_len = old_len * 2;
+    if (new_len < 100)  new_len = 100;
+    char* new_low  = NEW_C_HEAP_ARRAY(char, new_len);
+    char* new_high = new_low + new_len;
+    char* new_ptr  = new_high - old_len;
+    memcpy(new_ptr, old_ptr, old_len);
+    _element_close_stack_high = new_high;
+    _element_close_stack_low  = new_low;
+    _element_close_stack_ptr  = new_ptr;
+    FREE_C_HEAP_ARRAY(char, old_low);
+    push_ptr = new_ptr - (tag_len+1);
+  }
+  assert(push_ptr >= _element_close_stack_low, "in range");
+  memcpy(push_ptr, tag, tag_len);
+  push_ptr[tag_len] = 0;
+  _element_close_stack_ptr = push_ptr;
+  _element_depth += 1;
+}
+
+// ------------------------------------------------------------------
+void xmlStream::pop_tag(const char* tag) {
+  assert_if_no_error(!inside_attrs(), "cannot close element inside attrs");
+  assert(_element_depth > 0, "must be in an element to close");
+  assert(*tag != 0, "tag must not be empty");
+  char* cur_tag = _element_close_stack_ptr;
+  bool  bad_tag = false;
+  while (*cur_tag != 0 && strcmp(cur_tag, tag) != 0) {
+    this->print_cr("</%s> <!-- missing closing tag -->", cur_tag);
+    _element_close_stack_ptr = (cur_tag += strlen(cur_tag) + 1);
+    _element_depth -= 1;
+    bad_tag = true;
+  }
+  if (*cur_tag == 0) {
+    bad_tag = true;
+  } else {
+    // Pop the stack, by skipping over the tag and its null.
+    _element_close_stack_ptr = cur_tag + strlen(cur_tag) + 1;
+    _element_depth -= 1;
+  }
+  if (bad_tag && !VMThread::should_terminate() && !is_error_reported())
+    assert(false, "bad tag in log");
+}
+#endif
+
+
+// ------------------------------------------------------------------
+// First word in formatted string is element kind, and any subsequent
+// words must be XML attributes.  Outputs "<kind .../>".
+void xmlStream::elem(const char* format, ...) {
+  va_list ap;
+  va_start(ap, format);
+  va_elem(format, ap);
+  va_end(ap);
+}
+
+// ------------------------------------------------------------------
+void xmlStream::va_elem(const char* format, va_list ap) {
+  va_begin_elem(format, ap);
+  end_elem();
+}
+
+
+// ------------------------------------------------------------------
+// First word in formatted string is element kind, and any subsequent
+// words must be XML attributes.  Outputs "<kind ...", not including "/>".
+void xmlStream::begin_elem(const char* format, ...) {
+  va_list ap;
+  va_start(ap, format);
+  va_tag(false, format, ap);
+  va_end(ap);
+}
+
+// ------------------------------------------------------------------
+void xmlStream::va_begin_elem(const char* format, va_list ap) {
+  va_tag(false, format, ap);
+}
+
+// ------------------------------------------------------------------
+// Outputs "/>".
+void xmlStream::end_elem() {
+  assert(_markup_state == ELEM, "misplaced end_elem");
+  print_raw("/>\n");
+  _markup_state = BODY;
+}
+
+// ------------------------------------------------------------------
+// Outputs formatted text, followed by "/>".
+void xmlStream::end_elem(const char* format, ...) {
+  va_list ap;
+  va_start(ap, format);
+  out()->vprint(format, ap);
+  va_end(ap);
+  end_elem();
+}
+
+
+// ------------------------------------------------------------------
+// First word in formatted string is element kind, and any subsequent
+// words must be XML attributes.  Outputs "<kind ...>".
+void xmlStream::head(const char* format, ...) {
+  va_list ap;
+  va_start(ap, format);
+  va_head(format, ap);
+  va_end(ap);
+}
+
+// ------------------------------------------------------------------
+void xmlStream::va_head(const char* format, va_list ap) {
+  va_begin_head(format, ap);
+  end_head();
+}
+
+// ------------------------------------------------------------------
+// First word in formatted string is element kind, and any subsequent
+// words must be XML attributes.  Outputs "<kind ...", not including ">".
+void xmlStream::begin_head(const char* format, ...) {
+  va_list ap;
+  va_start(ap, format);
+  va_tag(true, format, ap);
+  va_end(ap);
+}
+
+// ------------------------------------------------------------------
+void xmlStream::va_begin_head(const char* format, va_list ap) {
+  va_tag(true, format, ap);
+}
+
+// ------------------------------------------------------------------
+// Outputs ">".
+void xmlStream::end_head() {
+  assert(_markup_state == HEAD, "misplaced end_head");
+  print_raw(">\n");
+  _markup_state = BODY;
+}
+
+
+// ------------------------------------------------------------------
+// Outputs formatted text, followed by ">".
+void xmlStream::end_head(const char* format, ...) {
+  va_list ap;
+  va_start(ap, format);
+  out()->vprint(format, ap);
+  va_end(ap);
+  end_head();
+}
+
+
+// ------------------------------------------------------------------
+// Outputs "</kind>".
+void xmlStream::tail(const char* kind) {
+  pop_tag(kind);
+  print_raw("</");
+  print_raw(kind);
+  print_raw(">\n");
+}
+
+// ------------------------------------------------------------------
+// Outputs "<kind_done ... stamp='D.DD'/> </kind>".
+void xmlStream::done(const char* format, ...) {
+  va_list ap;
+  va_start(ap, format);
+  va_done(format, ap);
+  va_end(ap);
+}
+
+// ------------------------------------------------------------------
+// Outputs "<kind_done stamp='D.DD'/> </kind>".
+// Because done_raw() doesn't need to format strings, it's simpler than
+// done(), and can be called safely by fatal error handler.
+void xmlStream::done_raw(const char* kind) {
+  print_raw("<");
+  print_raw(kind);
+  print_raw("_done stamp='");
+  out()->stamp();
+  print_raw_cr("'/>");
+  print_raw("</");
+  print_raw(kind);
+  print_raw_cr(">");
+}
+
+// ------------------------------------------------------------------
+void xmlStream::va_done(const char* format, va_list ap) {
+  char buffer[200];
+  guarantee(strlen(format) + 10 < sizeof(buffer), "bigger format buffer")
+  const char* kind = format;
+  const char* kind_end = strchr(kind, ' ');
+  size_t kind_len = (kind_end != NULL) ? (kind_end - kind) : strlen(kind);
+  strncpy(buffer, kind, kind_len);
+  strcpy(buffer + kind_len, "_done");
+  strcat(buffer, format + kind_len);
+  // Output the trailing event with the timestamp.
+  va_begin_elem(buffer, ap);
+  stamp();
+  end_elem();
+  // Output the tail-tag of the enclosing element.
+  buffer[kind_len] = 0;
+  tail(buffer);
+}
+
+// Output a timestamp attribute.
+void xmlStream::stamp() {
+  assert_if_no_error(inside_attrs(), "stamp must be an attribute");
+  print_raw(" stamp='");
+  out()->stamp();
+  print_raw("'");
+}
+
+
+// ------------------------------------------------------------------
+// Output a method attribute, in the form " method='pkg/cls name sig'".
+// This is used only when there is no ciMethod available.
+void xmlStream::method(methodHandle method) {
+  assert_if_no_error(inside_attrs(), "printing attributes");
+  if (method.is_null())  return;
+  print_raw(" method='");
+  method_text(method);
+  print("' bytes='%d'", method->code_size());
+  print(" count='%d'", method->invocation_count());
+  int bec = method->backedge_count();
+  if (bec != 0)  print(" backedge_count='%d'", bec);
+  print(" iicount='%d'", method->interpreter_invocation_count());
+  int throwouts = method->interpreter_throwout_count();
+  if (throwouts != 0)  print(" throwouts='%d'", throwouts);
+  methodDataOop mdo = method->method_data();
+  if (mdo != NULL) {
+    uint cnt;
+    cnt = mdo->decompile_count();
+    if (cnt != 0)  print(" decompiles='%d'", cnt);
+    for (uint reason = 0; reason < mdo->trap_reason_limit(); reason++) {
+      cnt = mdo->trap_count(reason);
+      if (cnt != 0)  print(" %s_traps='%d'", Deoptimization::trap_reason_name(reason), cnt);
+    }
+    cnt = mdo->overflow_trap_count();
+    if (cnt != 0)  print(" overflow_traps='%d'", cnt);
+    cnt = mdo->overflow_recompile_count();
+    if (cnt != 0)  print(" overflow_recompiles='%d'", cnt);
+  }
+}
+
+void xmlStream::method_text(methodHandle method) {
+  assert_if_no_error(inside_attrs(), "printing attributes");
+  if (method.is_null())  return;
+  //method->print_short_name(text());
+  method->method_holder()->klass_part()->name()->print_symbol_on(text());
+  print_raw(" ");  // " " is easier for tools to parse than "::"
+  method->name()->print_symbol_on(text());
+  print_raw(" ");  // separator
+  method->signature()->print_symbol_on(text());
+}
+
+
+// ------------------------------------------------------------------
+// Output a klass attribute, in the form " klass='pkg/cls'".
+// This is used only when there is no ciKlass available.
+void xmlStream::klass(KlassHandle klass) {
+  assert_if_no_error(inside_attrs(), "printing attributes");
+  if (klass.is_null())  return;
+  print_raw(" klass='");
+  klass_text(klass);
+  print_raw("'");
+}
+
+void xmlStream::klass_text(KlassHandle klass) {
+  assert_if_no_error(inside_attrs(), "printing attributes");
+  if (klass.is_null())  return;
+  //klass->print_short_name(log->out());
+  klass->name()->print_symbol_on(out());
+}
+
+void xmlStream::name(symbolHandle name) {
+  assert_if_no_error(inside_attrs(), "printing attributes");
+  if (name.is_null())  return;
+  print_raw(" name='");
+  name_text(name);
+  print_raw("'");
+}
+
+void xmlStream::name_text(symbolHandle name) {
+  assert_if_no_error(inside_attrs(), "printing attributes");
+  if (name.is_null())  return;
+  //name->print_short_name(text());
+  name->print_symbol_on(text());
+}
+
+void xmlStream::object(const char* attr, Handle x) {
+  assert_if_no_error(inside_attrs(), "printing attributes");
+  if (x.is_null())  return;
+  print_raw(" ");
+  print_raw(attr);
+  print_raw("='");
+  object_text(x);
+  print_raw("'");
+}
+
+void xmlStream::object_text(Handle x) {
+  assert_if_no_error(inside_attrs(), "printing attributes");
+  if (x.is_null())  return;
+  //x->print_value_on(text());
+  if (x->is_method())
+    method_text(methodOop(x()));
+  else if (x->is_klass())
+    klass_text(klassOop(x()));
+  else if (x->is_symbol())
+    name_text(symbolOop(x()));
+  else
+    x->print_value_on(text());
+}
+
+
+void xmlStream::flush() {
+  out()->flush();
+  _last_flush = count();
+}
+
+void xmlTextStream::flush() {
+  if (_outer_xmlStream == NULL)  return;
+  _outer_xmlStream->flush();
+}
+
+void xmlTextStream::write(const char* str, size_t len) {
+  if (_outer_xmlStream == NULL)  return;
+  _outer_xmlStream->write_text(str, len);
+  update_position(str, len);
+}