/*+
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 * Copyright (c) 1999, 2015, Oracle and/or its affiliates. All rights reserved.+
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 * Copyright 2012, 2015 SAP AG. All rights reserved.+
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.+
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 *+
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 * This code is free software; you can redistribute it and/or modify it+
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 * under the terms of the GNU General Public License version 2 only, as+
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 * published by the Free Software Foundation.+
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 *+
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 * This code is distributed in the hope that it will be useful, but WITHOUT+
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or+
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License+
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 * version 2 for more details (a copy is included in the LICENSE file that+
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 * accompanied this code).+
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 *+
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 * You should have received a copy of the GNU General Public License version+
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 * 2 along with this work; if not, write to the Free Software Foundation,+
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.+
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 *+
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA+
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 * or visit www.oracle.com if you need additional information or have any+
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 * questions.+
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 *+
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 */+
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+
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#ifndef OS_AIX_VM_OS_AIX_INLINE_HPP+
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#define OS_AIX_VM_OS_AIX_INLINE_HPP+
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+
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#include "runtime/os.hpp"+
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+
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// System includes+
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+
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#include <unistd.h>+
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#include <sys/socket.h>+
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#include <sys/poll.h>+
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#include <sys/ioctl.h>+
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#include <netdb.h>+
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+
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inline void* os::thread_local_storage_at(int index) {+
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  return pthread_getspecific((pthread_key_t)index);+
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}+
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+
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// File names are case-sensitive on windows only.+
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inline int os::file_name_strcmp(const char* s1, const char* s2) {+
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  return strcmp(s1, s2);+
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}+
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+
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inline bool os::obsolete_option(const JavaVMOption *option) {+
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  return false;+
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}+
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+
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inline bool os::uses_stack_guard_pages() {+
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  return true;+
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}+
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+
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// Whether or not calling code should/can commit/uncommit stack pages+
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// before guarding them. Answer for AIX is definitly no, because memory+
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// is automatically committed on touch.+
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inline bool os::allocate_stack_guard_pages() {+
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  assert(uses_stack_guard_pages(), "sanity check");+
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  return false;+
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}+
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+
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// On Aix, reservations are made on a page by page basis, nothing to do.+
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inline void os::pd_split_reserved_memory(char *base, size_t size,+
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                                         size_t split, bool realloc) {+
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}+
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+
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// Bang the shadow pages if they need to be touched to be mapped.+
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inline void os::bang_stack_shadow_pages() {+
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}+
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+
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inline void os::dll_unload(void *lib) {+
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  ::dlclose(lib);+
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}+
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+
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inline const int os::default_file_open_flags() { return 0;}+
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+
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inline DIR* os::opendir(const char* dirname) {+
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  assert(dirname != NULL, "just checking");+
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  return ::opendir(dirname);+
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}+
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+
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inline int os::readdir_buf_size(const char *path) {+
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  // According to aix sys/limits, NAME_MAX must be retrieved at runtime.+
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  const long my_NAME_MAX = pathconf(path, _PC_NAME_MAX);+
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  return my_NAME_MAX + sizeof(dirent) + 1;+
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}+
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+
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inline jlong os::lseek(int fd, jlong offset, int whence) {+
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  return (jlong) ::lseek64(fd, offset, whence);+
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}+
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+
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inline int os::fsync(int fd) {+
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  return ::fsync(fd);+
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}+
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+
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inline char* os::native_path(char *path) {+
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  return path;+
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}+
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+
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inline int os::ftruncate(int fd, jlong length) {+
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  return ::ftruncate64(fd, length);+
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}+
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+
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inline struct dirent* os::readdir(DIR* dirp, dirent *dbuf) {+
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  dirent* p;+
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  int status;+
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  assert(dirp != NULL, "just checking");+
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+
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  // NOTE: Linux readdir_r (on RH 6.2 and 7.2 at least) is NOT like the POSIX+
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  // version. Here is the doc for this function:+
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  // http://www.gnu.org/manual/glibc-2.2.3/html_node/libc_262.html+
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+
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  if((status = ::readdir_r(dirp, dbuf, &p)) != 0) {+
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    errno = status;+
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    return NULL;+
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  } else+
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    return p;+
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}+
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+
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inline int os::closedir(DIR *dirp) {+
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  assert(dirp != NULL, "argument is NULL");+
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  return ::closedir(dirp);+
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}+
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+
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// macros for restartable system calls+
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+
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#define RESTARTABLE(_cmd, _result) do { \+
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    _result = _cmd; \+
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  } while(((int)_result == OS_ERR) && (errno == EINTR))+
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+
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#define RESTARTABLE_RETURN_INT(_cmd) do { \+
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  int _result; \+
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  RESTARTABLE(_cmd, _result); \+
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  return _result; \+
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} while(false)+
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+
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// We don't have NUMA support on Aix, but we need this for compilation.+
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inline bool os::numa_has_static_binding()   { ShouldNotReachHere(); return true; }+
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inline bool os::numa_has_group_homing()     { ShouldNotReachHere(); return false;  }+
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+
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inline size_t os::restartable_read(int fd, void *buf, unsigned int nBytes) {+
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  size_t res;+
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  RESTARTABLE( (size_t) ::read(fd, buf, (size_t) nBytes), res);+
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  return res;+
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}+
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+
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inline size_t os::write(int fd, const void *buf, unsigned int nBytes) {+
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  size_t res;+
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  RESTARTABLE((size_t) ::write(fd, buf, (size_t) nBytes), res);+
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  return res;+
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}+
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+
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inline int os::close(int fd) {+
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  return ::close(fd);+
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}+
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+
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inline int os::socket_close(int fd) {+
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  return ::close(fd);+
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}+
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+
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inline int os::socket(int domain, int type, int protocol) {+
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  return ::socket(domain, type, protocol);+
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}+
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+
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inline int os::recv(int fd, char* buf, size_t nBytes, uint flags) {+
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  RESTARTABLE_RETURN_INT(::recv(fd, buf, nBytes, flags));+
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}+
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+
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inline int os::send(int fd, char* buf, size_t nBytes, uint flags) {+
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  RESTARTABLE_RETURN_INT(::send(fd, buf, nBytes, flags));+
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}+
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+
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inline int os::raw_send(int fd, char *buf, size_t nBytes, uint flags) {+
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  return os::send(fd, buf, nBytes, flags);+
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}+
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+
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inline int os::connect(int fd, struct sockaddr *him, socklen_t len) {+
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  RESTARTABLE_RETURN_INT(::connect(fd, him, len));+
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}+
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+
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inline struct hostent* os::get_host_by_name(char* name) {+
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  return ::gethostbyname(name);+
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}+
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+
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inline bool os::supports_monotonic_clock() {+
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  // mread_real_time() is monotonic on AIX (see os::javaTimeNanos() comments)+
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  return true;+
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}+
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+
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inline void os::exit(int num) {+
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  ::exit(num);+
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}+
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+
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#endif // OS_AIX_VM_OS_AIX_INLINE_HPP+
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