duke@435: /*
xdono@631:  * Copyright 1999-2008 Sun Microsystems, Inc.  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:  *
duke@435:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@435:  * have any questions.
duke@435:  *
duke@435:  */
duke@435: 
duke@435: inline void* os::thread_local_storage_at(int index) {
duke@435:   return pthread_getspecific((pthread_key_t)index);
duke@435: }
duke@435: 
duke@435: inline const char* os::file_separator() {
duke@435:   return "/";
duke@435: }
duke@435: 
duke@435: inline const char* os::line_separator() {
duke@435:   return "\n";
duke@435: }
duke@435: 
duke@435: inline const char* os::path_separator() {
duke@435:   return ":";
duke@435: }
duke@435: 
duke@435: inline const char* os::jlong_format_specifier() {
duke@435:   return "%lld";
duke@435: }
duke@435: 
duke@435: inline const char* os::julong_format_specifier() {
duke@435:   return "%llu";
duke@435: }
duke@435: 
duke@435: // File names are case-sensitive on windows only
duke@435: inline int os::file_name_strcmp(const char* s1, const char* s2) {
duke@435:   return strcmp(s1, s2);
duke@435: }
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 true;
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: 
duke@435: // On Linux, reservations are made on a page by page basis, nothing to do.
duke@435: inline void os::split_reserved_memory(char *base, size_t size,
duke@435:                                       size_t split, bool realloc) {
duke@435: }
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: }
duke@435: 
duke@435: inline DIR* os::opendir(const char* dirname)
duke@435: {
duke@435:   assert(dirname != NULL, "just checking");
duke@435:   return ::opendir(dirname);
duke@435: }
duke@435: 
duke@435: inline int os::readdir_buf_size(const char *path)
duke@435: {
duke@435:   return NAME_MAX + sizeof(dirent) + 1;
duke@435: }
duke@435: 
duke@435: inline struct dirent* os::readdir(DIR* dirp, dirent *dbuf)
duke@435: {
duke@435:   dirent* p;
duke@435:   int status;
duke@435:   assert(dirp != NULL, "just checking");
duke@435: 
duke@435:   // NOTE: Linux readdir_r (on RH 6.2 and 7.2 at least) is NOT like the POSIX
duke@435:   // version. Here is the doc for this function:
duke@435:   // http://www.gnu.org/manual/glibc-2.2.3/html_node/libc_262.html
duke@435: 
duke@435:   if((status = ::readdir_r(dirp, dbuf, &p)) != 0) {
duke@435:     errno = status;
duke@435:     return NULL;
duke@435:   } else
duke@435:     return p;
duke@435: }
duke@435: 
duke@435: inline int os::closedir(DIR *dirp)
duke@435: {
duke@435:   assert(dirp != NULL, "just checking");
duke@435:   return ::closedir(dirp);
duke@435: }
duke@435: 
duke@435: // macros for restartable system calls
duke@435: 
duke@435: #define RESTARTABLE(_cmd, _result) do { \
duke@435:     _result = _cmd; \
duke@435:   } while(((int)_result == OS_ERR) && (errno == EINTR))
duke@435: 
duke@435: #define RESTARTABLE_RETURN_INT(_cmd) do { \
duke@435:   int _result; \
duke@435:   RESTARTABLE(_cmd, _result); \
duke@435:   return _result; \
duke@435: } while(false)
iveresov@576: 
iveresov@576: inline bool os::numa_has_static_binding()   { return true; }
iveresov@576: inline bool os::numa_has_group_homing()     { return false;  }