diff src/os/solaris/vm/hpi_solaris.hpp @ 0:a61af66fc99e jdk7-b24

Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children 2a1a77d3458f
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/os/solaris/vm/hpi_solaris.hpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,245 @@
+/*
+ * Copyright 1998-2007 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.
+ *
+ */
+
+//
+// Parts of the HPI interface for which the HotSparc does not use the
+// HPI (because the interruptible IO mechanims used are different).
+//
+
+#include <sys/socket.h>
+#include <sys/poll.h>
+#include <sys/filio.h>
+#include <unistd.h>
+#include <netdb.h>
+#include <setjmp.h>
+
+// HPI_FileInterface
+
+// Many system calls can be interrupted by signals and must be restarted.
+// Restart support was added without disturbing the extent of thread
+// interruption support.
+
+inline int    hpi::close(int fd) {
+  RESTARTABLE_RETURN_INT(::close(fd));
+}
+
+inline size_t hpi::read(int fd, void *buf, unsigned int nBytes) {
+  INTERRUPTIBLE_RETURN_INT(::read(fd, buf, nBytes), os::Solaris::clear_interrupted);
+}
+
+inline size_t hpi::write(int fd, const void *buf, unsigned int nBytes) {
+  INTERRUPTIBLE_RETURN_INT(::write(fd, buf, nBytes), os::Solaris::clear_interrupted);
+}
+
+
+// HPI_SocketInterface
+
+inline int    hpi::socket_close(int fd) {
+  RESTARTABLE_RETURN_INT(::close(fd));
+}
+
+inline int    hpi::socket(int domain, int type, int protocol) {
+  return ::socket(domain, type, protocol);
+}
+
+inline int    hpi::recv(int fd, char *buf, int nBytes, int flags) {
+  INTERRUPTIBLE_RETURN_INT(::recv(fd, buf, nBytes, flags), os::Solaris::clear_interrupted);
+}
+
+inline int    hpi::send(int fd, char *buf, int nBytes, int flags) {
+  INTERRUPTIBLE_RETURN_INT(::send(fd, buf, nBytes, flags), os::Solaris::clear_interrupted);
+}
+
+// As both poll and select can be interrupted by signals, we have to be
+// prepared to restart the system call after updating the timeout, unless
+// a poll() is done with timeout == -1, in which case we repeat with this
+// "wait forever" value.
+
+inline int    hpi::timeout(int fd, long timeout) {
+  int res;
+  struct timeval t;
+  julong prevtime, newtime;
+  static const char* aNull = 0;
+
+  struct pollfd pfd;
+  pfd.fd = fd;
+  pfd.events = POLLIN;
+
+  gettimeofday(&t, &aNull);
+  prevtime = ((julong)t.tv_sec * 1000)  +  t.tv_usec / 1000;
+
+  for(;;) {
+    INTERRUPTIBLE_NORESTART(::poll(&pfd, 1, timeout), res, os::Solaris::clear_interrupted);
+    if(res == OS_ERR && errno == EINTR) {
+        if(timeout != -1) {
+            gettimeofday(&t, &aNull);
+            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    hpi::listen(int fd, int count) {
+  if (fd < 0)
+    return OS_ERR;
+
+  return ::listen(fd, count);
+}
+
+inline int
+hpi::connect(int fd, struct sockaddr *him, int len) {
+  do {
+    int _result;
+    INTERRUPTIBLE_NORESTART(::connect(fd, him, len), _result,
+                            os::Solaris::clear_interrupted);
+
+    // Depending on when thread interruption is reset, _result could be
+    // one of two values when errno == EINTR
+
+    if (((_result == OS_INTRPT) || (_result == OS_ERR)) && (errno == EINTR)) {
+      /* restarting a connect() changes its errno semantics */
+      INTERRUPTIBLE(::connect(fd, him, len), _result,
+                      os::Solaris::clear_interrupted);
+      /* undo these changes */
+      if (_result == OS_ERR) {
+        if (errno == EALREADY) errno = EINPROGRESS; /* fall through */
+        else if (errno == EISCONN) { errno = 0; return OS_OK; }
+      }
+    }
+    return _result;
+  } while(false);
+}
+
+inline int    hpi::accept(int fd, struct sockaddr *him, int *len) {
+  if (fd < 0)
+    return OS_ERR;
+  INTERRUPTIBLE_RETURN_INT((int)::accept(fd, him, (socklen_t*) len), os::Solaris::clear_interrupted);
+}
+
+inline int    hpi::recvfrom(int fd, char *buf, int nBytes, int flags,
+                            sockaddr *from, int *fromlen) {
+  //%%note jvm_r11
+  INTERRUPTIBLE_RETURN_INT((int)::recvfrom(fd, buf, nBytes, (unsigned int) flags, from, (socklen_t *)fromlen), os::Solaris::clear_interrupted);
+}
+
+inline int    hpi::sendto(int fd, char *buf, int len, int flags,
+                          struct sockaddr *to, int tolen) {
+  //%%note jvm_r11
+  INTERRUPTIBLE_RETURN_INT((int)::sendto(fd, buf, len, (unsigned int) flags, to, tolen),os::Solaris::clear_interrupted);
+}
+
+inline int    hpi::socket_available(int fd, jint *pbytes) {
+  if (fd < 0)
+    return OS_OK;
+
+  int ret;
+
+  RESTARTABLE(::ioctl(fd, FIONREAD, pbytes), ret);
+
+  //%% note ioctl can return 0 when successful, JVM_SocketAvailable
+  // is expected to return 0 on failure and 1 on success to the jdk.
+
+  return (ret == OS_ERR) ? 0 : 1;
+}
+
+
+/*
+HPIDECL(socket_shutdown, "socket_shutdown", _socket, SocketShutdown,
+        int, "%d",
+        (int fd, int howto),
+        ("fd = %d, howto = %d", fd, howto),
+        (fd, howto));
+        */
+inline int hpi::socket_shutdown(int fd, int howto){
+  return ::shutdown(fd, howto);
+}
+
+/*
+HPIDECL(bind, "bind", _socket, Bind,
+        int, "%d",
+        (int fd, struct sockaddr *him, int len),
+        ("fd = %d, him = %p, len = %d",
+         fd, him, len),
+        (fd, him, len));
+*/
+inline int hpi::bind(int fd, struct sockaddr *him, int len){
+  INTERRUPTIBLE_RETURN_INT_NORESTART(::bind(fd, him, len),os::Solaris::clear_interrupted);
+}
+
+/*
+HPIDECL(get_sock_name, "get_sock_name", _socket, GetSocketName,
+        int, "%d",
+        (int fd, struct sockaddr *him, int *len),
+        ("fd = %d, him = %p, len = %p",
+         fd, him, len),
+        (fd, him, len));
+        */
+inline int hpi::get_sock_name(int fd, struct sockaddr *him, int *len){
+  return ::getsockname(fd, him, (socklen_t*) len);
+}
+
+/*
+HPIDECL(get_host_name, "get_host_name", _socket, GetHostName, int, "%d",
+        (char *hostname, int namelen),
+        ("hostname = %p, namelen = %d",
+         hostname, namelen),
+        (hostname, namelen));
+        */
+inline int hpi::get_host_name(char* name, int namelen){
+  return ::gethostname(name, namelen);
+}
+
+/*
+HPIDECL(get_sock_opt, "get_sock_opt", _socket, SocketGetOption, int, "%d",
+        (int fd, int level, int optname, char *optval, int* optlen),
+        ("fd = %d, level = %d, optname = %d, optval = %p, optlen = %p",
+         fd, level, optname, optval, optlen),
+        (fd, level, optname, optval, optlen));
+        */
+inline int hpi::get_sock_opt(int fd, int level, int optname,
+                             char *optval, int* optlen){
+  return ::getsockopt(fd, level, optname, optval, (socklen_t*) optlen);
+}
+
+/*
+HPIDECL(set_sock_opt, "set_sock_opt", _socket, SocketSetOption, int, "%d",
+        (int fd, int level, int optname, const char *optval, int optlen),
+        ("fd = %d, level = %d, optname = %d, optval = %p, optlen = %d",
+         fd, level, optname, optval, optlen),
+        (fd, level, optname, optval, optlen));
+        */
+inline int hpi::set_sock_opt(int fd, int level, int optname,
+                             const char *optval, int optlen){
+  return ::setsockopt(fd, level, optname, optval, optlen);
+}
+
+//Reconciliation History
+// 1.3 98/10/21 18:17:14 hpi_win32.hpp
+// 1.6 99/06/28 11:01:36 hpi_win32.hpp
+//End