aoqi@0: /*
aoqi@0:  * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * Copyright 2012, 2013 SAP AG. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  */
aoqi@0: 
aoqi@0: #ifndef OS_AIX_VM_OS_AIX_INLINE_HPP
aoqi@0: #define OS_AIX_VM_OS_AIX_INLINE_HPP
aoqi@0: 
aoqi@0: #include "runtime/atomic.hpp"
aoqi@0: #include "runtime/os.hpp"
aoqi@0: #ifdef TARGET_OS_ARCH_aix_ppc
aoqi@0: # include "atomic_aix_ppc.inline.hpp"
aoqi@0: # include "orderAccess_aix_ppc.inline.hpp"
aoqi@0: #endif
aoqi@0: 
aoqi@0: // System includes
aoqi@0: 
aoqi@0: #include <unistd.h>
aoqi@0: #include <sys/socket.h>
aoqi@0: #include <sys/poll.h>
aoqi@0: #include <sys/ioctl.h>
aoqi@0: #include <netdb.h>
aoqi@0: 
aoqi@0: // Defined in the system headers included above.
aoqi@0: #undef rem_size
aoqi@0: 
aoqi@0: inline void* os::thread_local_storage_at(int index) {
aoqi@0:   return pthread_getspecific((pthread_key_t)index);
aoqi@0: }
aoqi@0: 
aoqi@0: inline const char* os::file_separator() {
aoqi@0:   return "/";
aoqi@0: }
aoqi@0: 
aoqi@0: inline const char* os::line_separator() {
aoqi@0:   return "\n";
aoqi@0: }
aoqi@0: 
aoqi@0: inline const char* os::path_separator() {
aoqi@0:   return ":";
aoqi@0: }
aoqi@0: 
aoqi@0: // File names are case-sensitive on windows only
aoqi@0: inline int os::file_name_strcmp(const char* s1, const char* s2) {
aoqi@0:   return strcmp(s1, s2);
aoqi@0: }
aoqi@0: 
aoqi@0: inline bool os::obsolete_option(const JavaVMOption *option) {
aoqi@0:   return false;
aoqi@0: }
aoqi@0: 
aoqi@0: inline bool os::uses_stack_guard_pages() {
aoqi@0:   return true;
aoqi@0: }
aoqi@0: 
aoqi@0: inline bool os::allocate_stack_guard_pages() {
aoqi@0:   assert(uses_stack_guard_pages(), "sanity check");
aoqi@0:   return true;
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: // On Aix, reservations are made on a page by page basis, nothing to do.
aoqi@0: inline void os::pd_split_reserved_memory(char *base, size_t size,
aoqi@0:                                          size_t split, bool realloc) {
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: // Bang the shadow pages if they need to be touched to be mapped.
aoqi@0: inline void os::bang_stack_shadow_pages() {
aoqi@0: }
aoqi@0: 
aoqi@0: inline void os::dll_unload(void *lib) {
aoqi@0:   ::dlclose(lib);
aoqi@0: }
aoqi@0: 
aoqi@0: inline const int os::default_file_open_flags() { return 0;}
aoqi@0: 
aoqi@0: inline DIR* os::opendir(const char* dirname)
aoqi@0: {
aoqi@0:   assert(dirname != NULL, "just checking");
aoqi@0:   return ::opendir(dirname);
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::readdir_buf_size(const char *path)
aoqi@0: {
aoqi@0:   // according to aix sys/limits, NAME_MAX must be retrieved at runtime. */
aoqi@0:   const long my_NAME_MAX = pathconf(path, _PC_NAME_MAX);
aoqi@0:   return my_NAME_MAX + sizeof(dirent) + 1;
aoqi@0: }
aoqi@0: 
aoqi@0: inline jlong os::lseek(int fd, jlong offset, int whence) {
aoqi@0:   return (jlong) ::lseek64(fd, offset, whence);
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::fsync(int fd) {
aoqi@0:   return ::fsync(fd);
aoqi@0: }
aoqi@0: 
aoqi@0: inline char* os::native_path(char *path) {
aoqi@0:   return path;
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::ftruncate(int fd, jlong length) {
aoqi@0:   return ::ftruncate64(fd, length);
aoqi@0: }
aoqi@0: 
aoqi@0: inline struct dirent* os::readdir(DIR* dirp, dirent *dbuf)
aoqi@0: {
aoqi@0:   dirent* p;
aoqi@0:   int status;
aoqi@0:   assert(dirp != NULL, "just checking");
aoqi@0: 
aoqi@0:   // NOTE: Linux readdir_r (on RH 6.2 and 7.2 at least) is NOT like the POSIX
aoqi@0:   // version. Here is the doc for this function:
aoqi@0:   // http://www.gnu.org/manual/glibc-2.2.3/html_node/libc_262.html
aoqi@0: 
aoqi@0:   if((status = ::readdir_r(dirp, dbuf, &p)) != 0) {
aoqi@0:     errno = status;
aoqi@0:     return NULL;
aoqi@0:   } else
aoqi@0:     return p;
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::closedir(DIR *dirp) {
aoqi@0:   assert(dirp != NULL, "argument is NULL");
aoqi@0:   return ::closedir(dirp);
aoqi@0: }
aoqi@0: 
aoqi@0: // macros for restartable system calls
aoqi@0: 
aoqi@0: #define RESTARTABLE(_cmd, _result) do { \
aoqi@0:     _result = _cmd; \
aoqi@0:   } while(((int)_result == OS_ERR) && (errno == EINTR))
aoqi@0: 
aoqi@0: #define RESTARTABLE_RETURN_INT(_cmd) do { \
aoqi@0:   int _result; \
aoqi@0:   RESTARTABLE(_cmd, _result); \
aoqi@0:   return _result; \
aoqi@0: } while(false)
aoqi@0: 
aoqi@0: // We don't have NUMA support on Aix, but we need this for compilation.
aoqi@0: inline bool os::numa_has_static_binding()   { ShouldNotReachHere(); return true; }
aoqi@0: inline bool os::numa_has_group_homing()     { ShouldNotReachHere(); return false;  }
aoqi@0: 
aoqi@0: inline size_t os::restartable_read(int fd, void *buf, unsigned int nBytes) {
aoqi@0:   size_t res;
aoqi@0:   RESTARTABLE( (size_t) ::read(fd, buf, (size_t) nBytes), res);
aoqi@0:   return res;
aoqi@0: }
aoqi@0: 
aoqi@0: inline size_t os::write(int fd, const void *buf, unsigned int nBytes) {
aoqi@0:   size_t res;
aoqi@0:   RESTARTABLE((size_t) ::write(fd, buf, (size_t) nBytes), res);
aoqi@0:   return res;
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::close(int fd) {
aoqi@0:   return ::close(fd);
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::socket_close(int fd) {
aoqi@0:   return ::close(fd);
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::socket(int domain, int type, int protocol) {
aoqi@0:   return ::socket(domain, type, protocol);
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::recv(int fd, char* buf, size_t nBytes, uint flags) {
aoqi@0:   RESTARTABLE_RETURN_INT(::recv(fd, buf, nBytes, flags));
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::send(int fd, char* buf, size_t nBytes, uint flags) {
aoqi@0:   RESTARTABLE_RETURN_INT(::send(fd, buf, nBytes, flags));
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::raw_send(int fd, char* buf, size_t nBytes, uint flags) {
aoqi@0:   return os::send(fd, buf, nBytes, flags);
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::timeout(int fd, long timeout) {
aoqi@0:   julong prevtime,newtime;
aoqi@0:   struct timeval t;
aoqi@0: 
aoqi@0:   gettimeofday(&t, NULL);
aoqi@0:   prevtime = ((julong)t.tv_sec * 1000) + t.tv_usec / 1000;
aoqi@0: 
aoqi@0:   for(;;) {
aoqi@0:     struct pollfd pfd;
aoqi@0: 
aoqi@0:     pfd.fd = fd;
aoqi@0:     pfd.events = POLLIN | POLLERR;
aoqi@0: 
aoqi@0:     int res = ::poll(&pfd, 1, timeout);
aoqi@0: 
aoqi@0:     if (res == OS_ERR && errno == EINTR) {
aoqi@0: 
aoqi@0:       // On Linux any value < 0 means "forever"
aoqi@0: 
aoqi@0:       if(timeout >= 0) {
aoqi@0:         gettimeofday(&t, NULL);
aoqi@0:         newtime = ((julong)t.tv_sec * 1000) + t.tv_usec / 1000;
aoqi@0:         timeout -= newtime - prevtime;
aoqi@0:         if(timeout <= 0)
aoqi@0:           return OS_OK;
aoqi@0:         prevtime = newtime;
aoqi@0:       }
aoqi@0:     } else
aoqi@0:       return res;
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::listen(int fd, int count) {
aoqi@0:   return ::listen(fd, count);
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::connect(int fd, struct sockaddr* him, socklen_t len) {
aoqi@0:   RESTARTABLE_RETURN_INT(::connect(fd, him, len));
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::accept(int fd, struct sockaddr* him, socklen_t* len) {
aoqi@0:   // Linux doc says this can't return EINTR, unlike accept() on Solaris.
aoqi@0:   // But see attachListener_linux.cpp, LinuxAttachListener::dequeue().
aoqi@0:   return (int)::accept(fd, him, len);
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::recvfrom(int fd, char* buf, size_t nBytes, uint flags,
aoqi@0:                         sockaddr* from, socklen_t* fromlen) {
aoqi@0:   RESTARTABLE_RETURN_INT((int)::recvfrom(fd, buf, nBytes, flags, from, fromlen));
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::sendto(int fd, char* buf, size_t len, uint flags,
aoqi@0:                       struct sockaddr* to, socklen_t tolen) {
aoqi@0:   RESTARTABLE_RETURN_INT((int)::sendto(fd, buf, len, flags, to, tolen));
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::socket_shutdown(int fd, int howto) {
aoqi@0:   return ::shutdown(fd, howto);
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::bind(int fd, struct sockaddr* him, socklen_t len) {
aoqi@0:   return ::bind(fd, him, len);
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::get_sock_name(int fd, struct sockaddr* him, socklen_t* len) {
aoqi@0:   return ::getsockname(fd, him, len);
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::get_host_name(char* name, int namelen) {
aoqi@0:   return ::gethostname(name, namelen);
aoqi@0: }
aoqi@0: 
aoqi@0: inline struct hostent* os::get_host_by_name(char* name) {
aoqi@0:   return ::gethostbyname(name);
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::get_sock_opt(int fd, int level, int optname,
aoqi@0:                             char* optval, socklen_t* optlen) {
aoqi@0:   return ::getsockopt(fd, level, optname, optval, optlen);
aoqi@0: }
aoqi@0: 
aoqi@0: inline int os::set_sock_opt(int fd, int level, int optname,
aoqi@0:                             const char* optval, socklen_t optlen) {
aoqi@0:   return ::setsockopt(fd, level, optname, optval, optlen);
aoqi@0: }
aoqi@0: #endif // OS_AIX_VM_OS_AIX_INLINE_HPP