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src/os/aix/vm/os_aix.inline.hpp

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rev 7960 : 8075506: aix: improve handling of native memory
   1 /*
   2  * Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright 2012, 2013 SAP AG. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *


  36 #include <sys/ioctl.h>
  37 #include <netdb.h>
  38 
  39 inline void* os::thread_local_storage_at(int index) {
  40   return pthread_getspecific((pthread_key_t)index);
  41 }
  42 
  43 // File names are case-sensitive on windows only
  44 inline int os::file_name_strcmp(const char* s1, const char* s2) {
  45   return strcmp(s1, s2);
  46 }
  47 
  48 inline bool os::obsolete_option(const JavaVMOption *option) {
  49   return false;
  50 }
  51 
  52 inline bool os::uses_stack_guard_pages() {
  53   return true;
  54 }
  55 



  56 inline bool os::allocate_stack_guard_pages() {
  57   assert(uses_stack_guard_pages(), "sanity check");
  58   return true;
  59 }
  60 
  61 
  62 // On Aix, reservations are made on a page by page basis, nothing to do.
  63 inline void os::pd_split_reserved_memory(char *base, size_t size,
  64                                          size_t split, bool realloc) {
  65 }
  66 
  67 
  68 // Bang the shadow pages if they need to be touched to be mapped.
  69 inline void os::bang_stack_shadow_pages() {
  70 }
  71 
  72 inline void os::dll_unload(void *lib) {
  73   ::dlclose(lib);
  74 }
  75 
  76 inline const int os::default_file_open_flags() { return 0;}
  77 
  78 inline DIR* os::opendir(const char* dirname)
  79 {
  80   assert(dirname != NULL, "just checking");
  81   return ::opendir(dirname);
  82 }
  83 
  84 inline int os::readdir_buf_size(const char *path)
  85 {
  86   // according to aix sys/limits, NAME_MAX must be retrieved at runtime. */
  87   const long my_NAME_MAX = pathconf(path, _PC_NAME_MAX);


 157 inline int os::close(int fd) {
 158   return ::close(fd);
 159 }
 160 
 161 inline int os::socket_close(int fd) {
 162   return ::close(fd);
 163 }
 164 
 165 inline int os::socket(int domain, int type, int protocol) {
 166   return ::socket(domain, type, protocol);
 167 }
 168 
 169 inline int os::recv(int fd, char* buf, size_t nBytes, uint flags) {
 170   RESTARTABLE_RETURN_INT(::recv(fd, buf, nBytes, flags));
 171 }
 172 
 173 inline int os::send(int fd, char* buf, size_t nBytes, uint flags) {
 174   RESTARTABLE_RETURN_INT(::send(fd, buf, nBytes, flags));
 175 }
 176 
 177 inline int os::raw_send(int fd, char* buf, size_t nBytes, uint flags) {
 178   return os::send(fd, buf, nBytes, flags);
 179 }
 180 
 181 inline int os::connect(int fd, struct sockaddr* him, socklen_t len) {
 182   RESTARTABLE_RETURN_INT(::connect(fd, him, len));
 183 }
 184 
 185 inline struct hostent* os::get_host_by_name(char* name) {
 186   return ::gethostbyname(name);
 187 }
 188 
 189 inline bool os::supports_monotonic_clock() {
 190   // mread_real_time() is monotonic on AIX (see os::javaTimeNanos() comments)
 191   return true;
 192 }
 193 
 194 inline void os::exit(int num) {
 195   ::exit(num);
 196 }
 197 
 198 #endif // OS_AIX_VM_OS_AIX_INLINE_HPP
   1 /*
   2  * Copyright (c) 1999, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright 2012, 2015 SAP AG. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *


  36 #include <sys/ioctl.h>
  37 #include <netdb.h>
  38 
  39 inline void* os::thread_local_storage_at(int index) {
  40   return pthread_getspecific((pthread_key_t)index);
  41 }
  42 
  43 // File names are case-sensitive on windows only
  44 inline int os::file_name_strcmp(const char* s1, const char* s2) {
  45   return strcmp(s1, s2);
  46 }
  47 
  48 inline bool os::obsolete_option(const JavaVMOption *option) {
  49   return false;
  50 }
  51 
  52 inline bool os::uses_stack_guard_pages() {
  53   return true;
  54 }
  55 
  56 // Whether or not calling code should/can commit/uncommit stack pages
  57 // before guarding them. Answer for AIX is definitly no, because we
  58 // operate on C heap.
  59 inline bool os::allocate_stack_guard_pages() {
  60   assert(uses_stack_guard_pages(), "sanity check");
  61   return false;
  62 }
  63 

  64 // On Aix, reservations are made on a page by page basis, nothing to do.
  65 inline void os::pd_split_reserved_memory(char *base, size_t size,
  66                                          size_t split, bool realloc) {
  67 }
  68 

  69 // Bang the shadow pages if they need to be touched to be mapped.
  70 inline void os::bang_stack_shadow_pages() {
  71 }
  72 
  73 inline void os::dll_unload(void *lib) {
  74   ::dlclose(lib);
  75 }
  76 
  77 inline const int os::default_file_open_flags() { return 0;}
  78 
  79 inline DIR* os::opendir(const char* dirname)
  80 {
  81   assert(dirname != NULL, "just checking");
  82   return ::opendir(dirname);
  83 }
  84 
  85 inline int os::readdir_buf_size(const char *path)
  86 {
  87   // according to aix sys/limits, NAME_MAX must be retrieved at runtime. */
  88   const long my_NAME_MAX = pathconf(path, _PC_NAME_MAX);


 158 inline int os::close(int fd) {
 159   return ::close(fd);
 160 }
 161 
 162 inline int os::socket_close(int fd) {
 163   return ::close(fd);
 164 }
 165 
 166 inline int os::socket(int domain, int type, int protocol) {
 167   return ::socket(domain, type, protocol);
 168 }
 169 
 170 inline int os::recv(int fd, char* buf, size_t nBytes, uint flags) {
 171   RESTARTABLE_RETURN_INT(::recv(fd, buf, nBytes, flags));
 172 }
 173 
 174 inline int os::send(int fd, char* buf, size_t nBytes, uint flags) {
 175   RESTARTABLE_RETURN_INT(::send(fd, buf, nBytes, flags));
 176 }
 177 
 178 inline int os::raw_send(int fd, char *buf, size_t nBytes, uint flags) {
 179   return os::send(fd, buf, nBytes, flags);
 180 }
 181 
 182 inline int os::connect(int fd, struct sockaddr *him, socklen_t len) {
 183   RESTARTABLE_RETURN_INT(::connect(fd, him, len));
 184 }
 185 
 186 inline struct hostent* os::get_host_by_name(char* name) {
 187   return ::gethostbyname(name);
 188 }
 189 
 190 inline bool os::supports_monotonic_clock() {
 191   // mread_real_time() is monotonic on AIX (see os::javaTimeNanos() comments)
 192   return true;
 193 }
 194 
 195 inline void os::exit(int num) {
 196   ::exit(num);
 197 }
 198 
 199 #endif // OS_AIX_VM_OS_AIX_INLINE_HPP
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