hotspot/src/os/aix/vm/os_aix.inline.hpp
changeset 22831 1e2ba1d62103
child 23213 141e27fa5a42
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/os/aix/vm/os_aix.inline.hpp	Fri Sep 06 20:16:09 2013 +0200
@@ -0,0 +1,286 @@
+/*
+ * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2012, 2013 SAP AG. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef OS_AIX_VM_OS_AIX_INLINE_HPP
+#define OS_AIX_VM_OS_AIX_INLINE_HPP
+
+#include "runtime/atomic.hpp"
+#include "runtime/os.hpp"
+#ifdef TARGET_OS_ARCH_aix_ppc
+# include "atomic_aix_ppc.inline.hpp"
+# include "orderAccess_aix_ppc.inline.hpp"
+#endif
+
+// System includes
+
+#include <unistd.h>
+#include <sys/socket.h>
+#include <sys/poll.h>
+#include <sys/ioctl.h>
+#include <netdb.h>
+
+// Defined in the system headers included above.
+#undef rem_size
+
+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 ":";
+}
+
+// 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 Aix, reservations are made on a page by page basis, nothing to do.
+inline void os::pd_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 void os::dll_unload(void *lib) {
+  ::dlclose(lib);
+}
+
+inline const int os::default_file_open_flags() { return 0;}
+
+inline DIR* os::opendir(const char* dirname)
+{
+  assert(dirname != NULL, "just checking");
+  return ::opendir(dirname);
+}
+
+inline int os::readdir_buf_size(const char *path)
+{
+  // according to aix sys/limits, NAME_MAX must be retrieved at runtime. */
+  const long my_NAME_MAX = pathconf(path, _PC_NAME_MAX);
+  return my_NAME_MAX + sizeof(dirent) + 1;
+}
+
+inline jlong os::lseek(int fd, jlong offset, int whence) {
+  return (jlong) ::lseek64(fd, offset, whence);
+}
+
+inline int os::fsync(int fd) {
+  return ::fsync(fd);
+}
+
+inline char* os::native_path(char *path) {
+  return path;
+}
+
+inline int os::ftruncate(int fd, jlong length) {
+  return ::ftruncate64(fd, length);
+}
+
+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, "argument is NULL");
+  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)
+
+// We don't have NUMA support on Aix, but we need this for compilation.
+inline bool os::numa_has_static_binding()   { ShouldNotReachHere(); return true; }
+inline bool os::numa_has_group_homing()     { ShouldNotReachHere(); return false;  }
+
+inline size_t os::restartable_read(int fd, void *buf, unsigned int nBytes) {
+  size_t res;
+  RESTARTABLE( (size_t) ::read(fd, buf, (size_t) nBytes), res);
+  return res;
+}
+
+inline size_t os::write(int fd, const void *buf, unsigned int nBytes) {
+  size_t res;
+  RESTARTABLE((size_t) ::write(fd, buf, (size_t) nBytes), res);
+  return res;
+}
+
+inline int os::close(int fd) {
+  return ::close(fd);
+}
+
+inline int os::socket_close(int fd) {
+  return ::close(fd);
+}
+
+inline int os::socket(int domain, int type, int protocol) {
+  return ::socket(domain, type, protocol);
+}
+
+inline int os::recv(int fd, char* buf, size_t nBytes, uint flags) {
+  RESTARTABLE_RETURN_INT(::recv(fd, buf, nBytes, flags));
+}
+
+inline int os::send(int fd, char* buf, size_t nBytes, uint flags) {
+  RESTARTABLE_RETURN_INT(::send(fd, buf, nBytes, flags));
+}
+
+inline int os::raw_send(int fd, char* buf, size_t nBytes, uint flags) {
+  return os::send(fd, buf, nBytes, flags);
+}
+
+inline int os::timeout(int fd, long timeout) {
+  julong prevtime,newtime;
+  struct timeval t;
+
+  gettimeofday(&t, NULL);
+  prevtime = ((julong)t.tv_sec * 1000) + t.tv_usec / 1000;
+
+  for(;;) {
+    struct pollfd pfd;
+
+    pfd.fd = fd;
+    pfd.events = POLLIN | POLLERR;
+
+    int res = ::poll(&pfd, 1, timeout);
+
+    if (res == OS_ERR && errno == EINTR) {
+
+      // On Linux any value < 0 means "forever"
+
+      if(timeout >= 0) {
+        gettimeofday(&t, NULL);
+        newtime = ((julong)t.tv_sec * 1000) + t.tv_usec / 1000;
+        timeout -= newtime - prevtime;
+        if(timeout <= 0)
+          return OS_OK;
+        prevtime = newtime;
+      }
+    } else
+      return res;
+  }
+}
+
+inline int os::listen(int fd, int count) {
+  return ::listen(fd, count);
+}
+
+inline int os::connect(int fd, struct sockaddr* him, socklen_t len) {
+  RESTARTABLE_RETURN_INT(::connect(fd, him, len));
+}
+
+inline int os::accept(int fd, struct sockaddr* him, socklen_t* len) {
+  // Linux doc says this can't return EINTR, unlike accept() on Solaris.
+  // But see attachListener_linux.cpp, LinuxAttachListener::dequeue().
+  return (int)::accept(fd, him, len);
+}
+
+inline int os::recvfrom(int fd, char* buf, size_t nBytes, uint flags,
+                        sockaddr* from, socklen_t* fromlen) {
+  RESTARTABLE_RETURN_INT((int)::recvfrom(fd, buf, nBytes, flags, from, fromlen));
+}
+
+inline int os::sendto(int fd, char* buf, size_t len, uint flags,
+                      struct sockaddr* to, socklen_t tolen) {
+  RESTARTABLE_RETURN_INT((int)::sendto(fd, buf, len, flags, to, tolen));
+}
+
+inline int os::socket_shutdown(int fd, int howto) {
+  return ::shutdown(fd, howto);
+}
+
+inline int os::bind(int fd, struct sockaddr* him, socklen_t len) {
+  return ::bind(fd, him, len);
+}
+
+inline int os::get_sock_name(int fd, struct sockaddr* him, socklen_t* len) {
+  return ::getsockname(fd, him, len);
+}
+
+inline int os::get_host_name(char* name, int namelen) {
+  return ::gethostname(name, namelen);
+}
+
+inline struct hostent* os::get_host_by_name(char* name) {
+  return ::gethostbyname(name);
+}
+
+inline int os::get_sock_opt(int fd, int level, int optname,
+                            char* optval, socklen_t* optlen) {
+  return ::getsockopt(fd, level, optname, optval, optlen);
+}
+
+inline int os::set_sock_opt(int fd, int level, int optname,
+                            const char* optval, socklen_t optlen) {
+  return ::setsockopt(fd, level, optname, optval, optlen);
+}
+#endif // OS_AIX_VM_OS_AIX_INLINE_HPP