/*

 * Copyright 1999-2006 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.

 *

 */

inline void* os::thread_local_storage_at(int index) {

  return pthread_getspecific((pthread_key_t)index);

}

inline const char* os::file_separator() {

  return "/";

}

inline const char* os::line_separator() {

  return "\n";

}

inline const char* os::path_separator() {

  return ":";

}

inline const char* os::jlong_format_specifier() {

  return "%lld";

}

inline const char* os::julong_format_specifier() {

  return "%llu";

}

// File names are case-sensitive on windows only

inline int os::file_name_strcmp(const char* s1, const char* s2) {

  return strcmp(s1, s2);

}

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

  return false;

}

inline bool os::uses_stack_guard_pages() {

  return true;

}

inline bool os::allocate_stack_guard_pages() {

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

  return true;

}

// On Linux, reservations are made on a page by page basis, nothing to do.

inline void os::split_reserved_memory(char *base, size_t size,

                                      size_t split, bool realloc) {

}

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

inline void os::bang_stack_shadow_pages() {

}

inline DIR* os::opendir(const char* dirname)

{

  assert(dirname != NULL, "just checking");

  return ::opendir(dirname);

}

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

{

  return NAME_MAX + sizeof(dirent) + 1;

}

inline struct dirent* os::readdir(DIR* dirp, dirent *dbuf)

{

  dirent* p;

  int status;

  assert(dirp != NULL, "just checking");

  // NOTE: Linux readdir_r (on RH 6.2 and 7.2 at least) is NOT like the POSIX

  // version. Here is the doc for this function:

  // http://www.gnu.org/manual/glibc-2.2.3/html_node/libc_262.html

  if((status = ::readdir_r(dirp, dbuf, &p)) != 0) {

    errno = status;

    return NULL;

  } else

    return p;

}

inline int os::closedir(DIR *dirp)

{

  assert(dirp != NULL, "just checking");

  return ::closedir(dirp);

}

// macros for restartable system calls

#define RESTARTABLE(_cmd, _result) do { \

    _result = _cmd; \

  } while(((int)_result == OS_ERR) && (errno == EINTR))

#define RESTARTABLE_RETURN_INT(_cmd) do { \

  int _result; \

  RESTARTABLE(_cmd, _result); \

  return _result; \

} while(false)