Mercurial > jdk8-mips64-public > hotspot / file revision

 /*

  * Copyright (c) 1997, 2013, 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 OS_WINDOWS_VM_OS_WINDOWS_INLINE_HPP

 #define OS_WINDOWS_VM_OS_WINDOWS_INLINE_HPP

 #include "runtime/atomic.hpp"

 #include "runtime/atomic.inline.hpp"

 #include "runtime/os.hpp"

 #ifdef TARGET_OS_ARCH_windows_x86

 # include "orderAccess_windows_x86.inline.hpp"

 #endif

 inline const char* os::file_separator()                { return "\\"; }

 inline const char* os::line_separator()                { return "\r\n"; }

 inline const char* os::path_separator()                { return ";"; }

 inline const char* os::dll_file_extension()            { return ".dll"; }

 inline const int os::default_file_open_flags() { return O_BINARY | O_NOINHERIT;}

 // File names are case-insensitive on windows only

 inline int os::file_name_strcmp(const char* s, const char* t) {

   return _stricmp(s, t);

 }

 inline void  os::dll_unload(void *lib) {

   ::FreeLibrary((HMODULE)lib);

 }

 inline void* os::dll_lookup(void *lib, const char *name) {

   return (void*)::GetProcAddress((HMODULE)lib, name);

 }

 // Used to improve time-sharing on some systems

 inline void os::loop_breaker(int attempts) {}

 inline bool os::obsolete_option(const JavaVMOption *option) {

   return false;

 }

 inline bool os::uses_stack_guard_pages() {

   return os::win32::is_nt();

 }

 inline bool os::allocate_stack_guard_pages() {

   assert(uses_stack_guard_pages(), "sanity check");

   return true;

 }

 inline int os::readdir_buf_size(const char *path)

 {

   /* As Windows doesn't use the directory entry buffer passed to

      os::readdir() this can be as short as possible */

   return 1;

 }

 // Bang the shadow pages if they need to be touched to be mapped.

 inline void os::bang_stack_shadow_pages() {

   // Write to each page of our new frame to force OS mapping.

   // If we decrement stack pointer more than one page

   // the OS may not map an intervening page into our space

   // and may fault on a memory access to interior of our frame.

   address sp = current_stack_pointer();

   for (int pages = 1; pages <= StackShadowPages; pages++) {

     *((int *)(sp - (pages * vm_page_size()))) = 0;

   }

 }

 inline bool os::numa_has_static_binding()   { return true;   }

 inline bool os::numa_has_group_homing()     { return false;  }

 inline size_t os::read(int fd, void *buf, unsigned int nBytes) {

   return ::read(fd, buf, nBytes);

 }

 inline size_t os::restartable_read(int fd, void *buf, unsigned int nBytes) {

   return ::read(fd, buf, nBytes);

 }

 inline size_t os::write(int fd, const void *buf, unsigned int nBytes) {

   return ::write(fd, buf, nBytes);

 }

 inline int os::close(int fd) {

   return ::close(fd);

 }

 #endif // OS_WINDOWS_VM_OS_WINDOWS_INLINE_HPP