duke@435: /*
stefank@2314:  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
stefank@2314: #ifndef OS_WINDOWS_VM_OS_WINDOWS_INLINE_HPP
stefank@2314: #define OS_WINDOWS_VM_OS_WINDOWS_INLINE_HPP
stefank@2314: 
stefank@2314: #include "runtime/atomic.hpp"
twisti@4318: #include "runtime/atomic.inline.hpp"
stefank@2314: #include "runtime/os.hpp"
twisti@4318: 
stefank@2314: #ifdef TARGET_OS_ARCH_windows_x86
stefank@2314: # include "orderAccess_windows_x86.inline.hpp"
stefank@2314: #endif
stefank@2314: 
duke@435: inline const char* os::file_separator()                { return "\\"; }
duke@435: inline const char* os::line_separator()                { return "\r\n"; }
duke@435: inline const char* os::path_separator()                { return ";"; }
ikrylov@2322: inline const char* os::dll_file_extension()            { return ".dll"; }
duke@435: 
duke@435: inline const char* os::jlong_format_specifier()        { return "%I64d"; }
duke@435: inline const char* os::julong_format_specifier()       { return "%I64u"; }
duke@435: 
ikrylov@2322: inline const int os::default_file_open_flags() { return O_BINARY | O_NOINHERIT;}
ikrylov@2322: 
duke@435: // File names are case-insensitive on windows only
duke@435: inline int os::file_name_strcmp(const char* s, const char* t) {
duke@435:   return _stricmp(s, t);
duke@435: }
duke@435: 
ikrylov@2322: inline void  os::dll_unload(void *lib) {
ikrylov@2322:   ::FreeLibrary((HMODULE)lib);
ikrylov@2322: }
ikrylov@2322: 
ikrylov@2322: inline void* os::dll_lookup(void *lib, const char *name) {
ikrylov@2322:   return (void*)::GetProcAddress((HMODULE)lib, name);
ikrylov@2322: }
ikrylov@2322: 
duke@435: // Used to improve time-sharing on some systems
duke@435: inline void os::loop_breaker(int attempts) {}
duke@435: 
duke@435: inline bool os::obsolete_option(const JavaVMOption *option) {
duke@435:   return false;
duke@435: }
duke@435: 
duke@435: inline bool os::uses_stack_guard_pages() {
duke@435:   return os::win32::is_nt();
duke@435: }
duke@435: 
duke@435: inline bool os::allocate_stack_guard_pages() {
duke@435:   assert(uses_stack_guard_pages(), "sanity check");
duke@435:   return true;
duke@435: }
duke@435: 
duke@435: inline int os::readdir_buf_size(const char *path)
duke@435: {
duke@435:   /* As Windows doesn't use the directory entry buffer passed to
duke@435:      os::readdir() this can be as short as possible */
duke@435: 
duke@435:   return 1;
duke@435: }
duke@435: 
duke@435: // Bang the shadow pages if they need to be touched to be mapped.
duke@435: inline void os::bang_stack_shadow_pages() {
duke@435:   // Write to each page of our new frame to force OS mapping.
duke@435:   // If we decrement stack pointer more than one page
duke@435:   // the OS may not map an intervening page into our space
duke@435:   // and may fault on a memory access to interior of our frame.
duke@435:   address sp = current_stack_pointer();
duke@435:   for (int pages = 1; pages <= StackShadowPages; pages++) {
duke@435:     *((int *)(sp - (pages * vm_page_size()))) = 0;
duke@435:   }
duke@435: }
iveresov@576: 
iveresov@576: inline bool os::numa_has_static_binding()   { return true;   }
iveresov@576: inline bool os::numa_has_group_homing()     { return false;  }
stefank@2314: 
ikrylov@2322: inline size_t os::read(int fd, void *buf, unsigned int nBytes) {
ikrylov@2322:   return ::read(fd, buf, nBytes);
ikrylov@2322: }
ikrylov@2322: 
ikrylov@2322: inline size_t os::restartable_read(int fd, void *buf, unsigned int nBytes) {
ikrylov@2322:   return ::read(fd, buf, nBytes);
ikrylov@2322: }
ikrylov@2322: 
ikrylov@2322: inline size_t os::write(int fd, const void *buf, unsigned int nBytes) {
ikrylov@2322:   return ::write(fd, buf, nBytes);
ikrylov@2322: }
ikrylov@2322: 
ikrylov@2322: inline int os::close(int fd) {
ikrylov@2322:   return ::close(fd);
ikrylov@2322: }
stefank@2314: #endif // OS_WINDOWS_VM_OS_WINDOWS_INLINE_HPP