jdk8-mips64-public/hotspot: src/os/solaris/vm/os_solaris.inline.hpp@bd441136a5ce (annotated)

src/os/solaris/vm/os_solaris.inline.hpp@bd441136a5ce (annotated)

src/os/solaris/vm/os_solaris.inline.hpp

Thu, 19 Mar 2009 09:13:24 -0700

author: kvn
date: Thu, 19 Mar 2009 09:13:24 -0700
changeset 1082: bd441136a5ce
parent 631: d1605aabd0a1
child 1907: c18cbe5936b8
permissions: -rw-r--r--

Merge

 /*
  * Copyright 1997-2008 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.
  *
  */
 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::uses_stack_guard_pages() {
   return true;
 }
 inline bool os::allocate_stack_guard_pages() {
   assert(uses_stack_guard_pages(), "sanity check");
   int r = thr_main() ;
   guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ;
   return r;
 }
 // On Solaris, 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)
 {
   int size = pathconf(path, _PC_NAME_MAX);
   return (size < 0 ? MAXPATHLEN : size) + sizeof(dirent) + 1;
 }
 inline struct dirent* os::readdir(DIR* dirp, dirent* dbuf)
 {
   assert(dirp != NULL, "just checking");
 #if defined(_LP64) || defined(_GNU_SOURCE)
   dirent* p;
   int status;
   if((status = ::readdir_r(dirp, dbuf, &p)) != 0) {
     errno = status;
     return NULL;
   } else
     return p;
 #else  // defined(_LP64) || defined(_GNU_SOURCE)
   return ::readdir_r(dirp, dbuf);
 #endif // defined(_LP64) || defined(_GNU_SOURCE)
 }
 inline int os::closedir(DIR *dirp)
 {
   assert(dirp != NULL, "just checking");
   return ::closedir(dirp);
 }
 //////////////////////////////////////////////////////////////////////////////
 ////////////////////////////////////////////////////////////////////////////////
 // macros for interruptible io and system calls and system call restarting
 #define _INTERRUPTIBLE(_setup, _cmd, _result, _thread, _clear, _before, _after, _int_enable) \
 do { \
   _setup; \
   _before; \
   OSThread* _osthread = _thread->osthread(); \
   if (_int_enable && _thread->has_last_Java_frame()) { \
     /* this is java interruptible io stuff */ \
     if (os::is_interrupted(_thread, _clear))  { \
       os::Solaris::bump_interrupted_before_count(); \
       _result = OS_INTRPT; \
     } else { \
       /* _cmd always expands to an assignment to _result */ \
       if ((_cmd) < 0 && errno == EINTR  \
        && os::is_interrupted(_thread, _clear)) { \
         os::Solaris::bump_interrupted_during_count(); \
         _result = OS_INTRPT; \
       } \
     } \
   } else { \
     /* this is normal blocking io stuff */ \
     _cmd; \
   } \
   _after; \
 } while(false)
 // Interruptible io support + restarting of interrupted system calls
 #ifndef ASSERT
 #define INTERRUPTIBLE(_cmd, _result, _clear) do { \
   _INTERRUPTIBLE( JavaThread* _thread = (JavaThread*)ThreadLocalStorage::thread(),_result = _cmd, _result, _thread, _clear, , , UseVMInterruptibleIO); \
 } while((_result == OS_ERR) && (errno == EINTR))
 #else
 // This adds an assertion that it is only called from thread_in_native
 // The call overhead is skipped for performance in product mode
 #define INTERRUPTIBLE(_cmd, _result, _clear) do { \
   _INTERRUPTIBLE(JavaThread* _thread = os::Solaris::setup_interruptible_native(), _result = _cmd, _result, _thread, _clear, , os::Solaris::cleanup_interruptible_native(_thread), UseVMInterruptibleIO ); \
 } while((_result == OS_ERR) && (errno == EINTR))
 #endif
 // Used for calls from _thread_in_vm, not from _thread_in_native
 #define INTERRUPTIBLE_VM(_cmd, _result, _clear) do { \
   _INTERRUPTIBLE(JavaThread* _thread = os::Solaris::setup_interruptible(), _result = _cmd, _result, _thread, _clear, , os::Solaris::cleanup_interruptible(_thread), UseVMInterruptibleIO ); \
 } while((_result == OS_ERR) && (errno == EINTR))
 /* Use NORESTART when the system call cannot return EINTR, when something other
    than a system call is being invoked, or when the caller must do EINTR
    handling. */
 #ifndef ASSERT
 #define INTERRUPTIBLE_NORESTART(_cmd, _result, _clear) \
   _INTERRUPTIBLE( JavaThread* _thread = (JavaThread*)ThreadLocalStorage::thread(),_result = _cmd, _result, _thread, _clear, , , UseVMInterruptibleIO)
 #else
 // This adds an assertion that it is only called from thread_in_native
 // The call overhead is skipped for performance in product mode
 #define INTERRUPTIBLE_NORESTART(_cmd, _result, _clear) \
   _INTERRUPTIBLE(JavaThread* _thread = os::Solaris::setup_interruptible_native(), _result = _cmd, _result, _thread, _clear, , os::Solaris::cleanup_interruptible_native(_thread), UseVMInterruptibleIO )
 #endif
 // Don't attend to UseVMInterruptibleIO. Always allow interruption.
 // Also assumes that it is called from the _thread_blocked state.
 // Used by os_sleep().
 #define INTERRUPTIBLE_NORESTART_VM_ALWAYS(_cmd, _result, _thread, _clear) \
   _INTERRUPTIBLE(os::Solaris::setup_interruptible_already_blocked(_thread), _result = _cmd, _result, _thread, _clear, , , true )
 #define INTERRUPTIBLE_RETURN_INT(_cmd, _clear) do { \
   int _result; \
   do { \
     INTERRUPTIBLE(_cmd, _result, _clear); \
   } while((_result == OS_ERR) && (errno == EINTR)); \
   return _result; \
 } while(false)
 #define INTERRUPTIBLE_RETURN_INT_VM(_cmd, _clear) do { \
   int _result; \
   do { \
     INTERRUPTIBLE_VM(_cmd, _result, _clear); \
   } while((_result == OS_ERR) && (errno == EINTR)); \
   return _result; \
 } while(false)
 #define INTERRUPTIBLE_RETURN_INT_NORESTART(_cmd, _clear) do { \
   int _result; \
   INTERRUPTIBLE_NORESTART(_cmd, _result, _clear); \
   return _result; \
 } while(false)
 /* Use the RESTARTABLE macros when interruptible io is not needed */
 #define RESTARTABLE(_cmd, _result) do { \
   do { \
     _result = _cmd; \
   } while((_result == OS_ERR) && (errno == EINTR)); \
 } while(false)
 #define RESTARTABLE_RETURN_INT(_cmd) do { \
   int _result; \
   RESTARTABLE(_cmd, _result); \
   return _result; \
 } while(false)
 inline bool os::numa_has_static_binding()   { return false; }
 inline bool os::numa_has_group_homing()     { return true;  }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/os/solaris/vm/os_solaris.inline.hpp@bd441136a5ce (annotated)

src/os/solaris/vm/os_solaris.inline.hpp