view src/share/vm/runtime/hpi.cpp @ 1091:6aa7255741f3

6906727: UseCompressedOops: some card-marking fixes related to object arrays Summary: Introduced a new write_ref_array(HeapWords* start, size_t count) method that does the requisite MemRegion range calculation so (some of the) clients of the erstwhile write_ref_array(MemRegion mr) do not need to worry. This removed all external uses of array_size(), which was also simplified and made private. Asserts were added to catch other possible issues. Further, less essential, fixes stemming from this investigation are deferred to CR 6904516 (to follow shortly in hs17). Reviewed-by: kvn, coleenp, jmasa
author ysr
date Thu, 03 Dec 2009 15:01:57 -0800
parents d1605aabd0a1
children c18cbe5936b8
line wrap: on
line source

/*
 * Copyright 1998-2008 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/_hpi.cpp.incl"

extern "C" {
  static void unimplemented_panic(const char *fmt, ...) {
    // mitigate testing damage from bug 6626677
    warning("hpi::unimplemented_panic called");
  }

  static void unimplemented_monitorRegister(sys_mon_t *mid, char *info_str) {
    Unimplemented();
  }
}

static vm_calls_t callbacks = {
  jio_fprintf,
  unimplemented_panic,
  unimplemented_monitorRegister,

  NULL, // unused
  NULL, // unused
  NULL  // unused
};

GetInterfaceFunc        hpi::_get_interface = NULL;
HPI_FileInterface*      hpi::_file          = NULL;
HPI_SocketInterface*    hpi::_socket        = NULL;
HPI_LibraryInterface*   hpi::_library       = NULL;
HPI_SystemInterface*    hpi::_system        = NULL;

jint hpi::initialize()
{
  initialize_get_interface(&callbacks);
  if (_get_interface == NULL)
    return JNI_ERR;

  jint result;

  result = (*_get_interface)((void **)&_file, "File", 1);
  if (result != 0) {
    if (TraceHPI) tty->print_cr("Can't find HPI_FileInterface");
    return JNI_ERR;
  }


  result = (*_get_interface)((void **)&_library, "Library", 1);
  if (result != 0) {
    if (TraceHPI) tty->print_cr("Can't find HPI_LibraryInterface");
    return JNI_ERR;
  }

  result = (*_get_interface)((void **)&_system, "System", 1);
  if (result != 0) {
    if (TraceHPI) tty->print_cr("Can't find HPI_SystemInterface");
    return JNI_ERR;
  }

  return JNI_OK;
}

jint hpi::initialize_socket_library()
{
  if (_get_interface == NULL) {
    if (TraceHPI) {
      tty->print_cr("Fatal HPI error: reached initialize_socket_library with NULL _get_interface");
    }
    return JNI_ERR;
  }

  jint result;
  result = (*_get_interface)((void **)&_socket, "Socket", 1);
  if (result != 0) {
    if (TraceHPI) tty->print_cr("Can't find HPI_SocketInterface");
    return JNI_ERR;
  }

  return JNI_OK;
}