diff src/share/vm/runtime/hpi.hpp @ 0:a61af66fc99e

Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children 2a1a77d3458f
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/runtime/hpi.hpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,224 @@
+/*
+ * Copyright 1998-2006 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.
+ *
+ */
+
+//
+// C++ wrapper to HPI.
+//
+
+class hpi : AllStatic {
+
+private:
+  static GetInterfaceFunc       _get_interface;
+  static HPI_FileInterface*     _file;
+  static HPI_SocketInterface*   _socket;
+  static HPI_LibraryInterface*  _library;
+  static HPI_SystemInterface*   _system;
+
+private:
+  static void initialize_get_interface(vm_calls_t *callbacks);
+
+public:
+  // Load and initialize everything except sockets.
+  static jint initialize();
+
+  // Socket library needs to be lazy intialized because eagerly
+  // loading Winsock is known to cause "connect to your ISP"
+  // dialog to show up.  Or so goes the legend.
+  static jint initialize_socket_library();
+
+  // HPI_FileInterface
+  static inline char*  native_path(char *path);
+  static inline int    file_type(const char *path);
+  static inline int    open(const char *name, int mode, int perm);
+  static inline int    close(int fd);
+  static inline jlong  lseek(int fd, jlong off, int whence);
+  static inline int    ftruncate(int fd, jlong length);
+  static inline int    fsync(int fd);
+  static inline int    available(int fd, jlong *bytes);
+  static inline size_t read(int fd, void *buf, unsigned int nBytes);
+  static inline size_t write(int fd, const void *buf, unsigned int nBytes);
+  static inline int    fsize(int fd, jlong *size);
+
+  // HPI_SocketInterface
+  static inline int    socket(int domain, int type, int protocol);
+  static inline int    socket_close(int fd);
+  static inline int    socket_shutdown(int fd, int howto);
+  static inline int    recv(int fd, char *buf, int nBytes, int flags);
+  static inline int    send(int fd, char *buf, int nBytes, int flags);
+  static inline int    timeout(int fd, long timeout);
+  static inline int    listen(int fd, int count);
+  static inline int    connect(int fd, struct sockaddr *him, int len);
+  static inline int    bind(int fd, struct sockaddr *him, int len);
+  static inline int    accept(int fd, struct sockaddr *him, int *len);
+  static inline int    recvfrom(int fd, char *buf, int nbytes, int flags,
+                                struct sockaddr *from, int *fromlen);
+  static inline int    get_sock_name(int fd, struct sockaddr *him, int *len);
+  static inline int    sendto(int fd, char *buf, int len, int flags,
+                              struct sockaddr *to, int tolen);
+  static inline int    socket_available(int fd, jint *pbytes);
+
+  static inline int    get_sock_opt(int fd, int level, int optname,
+                              char *optval, int* optlen);
+  static inline int    set_sock_opt(int fd, int level, int optname,
+                              const char *optval, int optlen);
+  static inline int    get_host_name(char* name, int namelen);
+  static inline struct hostent*  get_host_by_addr(const char* name, int len, int type);
+  static inline struct hostent*  get_host_by_name(char* name);
+  static inline struct protoent* get_proto_by_name(char* name);
+
+  // HPI_LibraryInterface
+  static inline void   dll_build_name(char *buf, int buf_len, char* path,
+                                      const char *name);
+  static inline void*  dll_load(const char *name, char *ebuf, int ebuflen);
+  static inline void   dll_unload(void *lib);
+  static inline void*  dll_lookup(void *lib, const char *name);
+
+  // HPI_SystemInterface
+  static inline int    lasterror(char *buf, int len);
+};
+
+//
+// Macros that provide inline bodies for the functions.
+//
+
+#define HPIDECL(name, names, intf, func, ret_type, ret_fmt, arg_type, arg_print, arg)   \
+  inline ret_type hpi::name arg_type {        \
+    if (TraceHPI) {                           \
+      tty->print("hpi::" names "(");          \
+      tty->print arg_print ;                  \
+      tty->print(") = ");                     \
+    }                                         \
+    ret_type result = (*intf->func) arg ;     \
+    if (TraceHPI) {                           \
+      tty->print_cr(ret_fmt, result);         \
+    }                                         \
+    return result;                            \
+  }
+
+// Macro to facilitate moving HPI functionality into the vm.
+// See bug 6348631.  The only difference between this macro and
+// HPIDECL is that we call a vm method rather than use the HPI
+// transfer vector.  Ultimately, we'll replace HPIDECL with
+// VM_HPIDECL for all hpi methods.
+#define VM_HPIDECL(name, names, func, ret_type, ret_fmt, arg_type,arg_print, arg)   \
+  inline ret_type hpi::name arg_type {        \
+    if (TraceHPI) {                           \
+      tty->print("hpi::" names "(");          \
+      tty->print arg_print ;                  \
+      tty->print(") = ");                     \
+    }                                         \
+    ret_type result = func arg ;              \
+    if (TraceHPI) {                           \
+      tty->print_cr(ret_fmt, result);         \
+    }                                         \
+    return result;                            \
+  }
+
+
+
+#define HPIDECL_VOID(name, names, intf, func, arg_type, arg_print, arg) \
+  inline void hpi::name arg_type {            \
+    if (TraceHPI) {                           \
+      tty->print("hpi::" names "(");          \
+      tty->print arg_print ;                  \
+      tty->print_cr(") = void");              \
+    }                                         \
+    (*intf->func) arg ;                       \
+  }
+
+
+// The macro calls below realize into
+//          inline char * hpi::native_path(...) {  inlined_body; }
+// etc.
+
+// HPI_FileInterface
+
+HPIDECL(native_path, "native_path", _file, NativePath, char *, "%s",
+        (char *path),
+        ("path = %s", path),
+        (path));
+
+HPIDECL(file_type, "file_type", _file, FileType, int, "%d",
+        (const char *path),
+        ("path = %s", path),
+        (path));
+
+HPIDECL(open, "open", _file, Open, int, "%d",
+        (const char *name, int mode, int perm),
+        ("name = %s, mode = %d, perm = %d", name, mode, perm),
+        (name, mode, perm));
+
+HPIDECL(lseek, "seek", _file, Seek, jlong, "(a jlong)",
+        (int fd, jlong off, int whence),
+        ("fd = %d, off = (a jlong), whence = %d", fd, /* off, */ whence),
+        (fd, off, whence));
+
+HPIDECL(ftruncate, "ftruncate", _file, SetLength, int, "%d",
+        (int fd, jlong length),
+        ("fd = %d, length = (a jlong)", fd /*, length */),
+        (fd, length));
+
+HPIDECL(fsync, "fsync", _file, Sync, int, "%d",
+        (int fd),
+        ("fd = %d", fd),
+        (fd));
+
+HPIDECL(available, "available", _file, Available, int, "%d",
+        (int fd, jlong *bytes),
+        ("fd = %d, bytes = %p", fd, bytes),
+        (fd, bytes));
+
+HPIDECL(fsize, "fsize", _file, FileSizeFD, int, "%d",
+        (int fd, jlong *size),
+        ("fd = %d, size = %p", fd, size),
+        (fd, size));
+
+// HPI_LibraryInterface
+HPIDECL_VOID(dll_build_name, "dll_build_name", _library, BuildLibName,
+             (char *buf, int buf_len, char *path, const char *name),
+             ("buf = %p, buflen = %d, path = %s, name = %s",
+              buf, buf_len, path, name),
+             (buf, buf_len, path, name));
+
+VM_HPIDECL(dll_load, "dll_load", os::dll_load,
+        void *, "(void *)%p",
+        (const char *name, char *ebuf, int ebuflen),
+        ("name = %s, ebuf = %p, ebuflen = %d", name, ebuf, ebuflen),
+        (name, ebuf, ebuflen));
+
+HPIDECL_VOID(dll_unload, "dll_unload", _library, UnloadLibrary,
+             (void *lib),
+             ("lib = %p", lib),
+             (lib));
+
+HPIDECL(dll_lookup, "dll_lookup", _library, FindLibraryEntry, void *, "%p",
+        (void *lib, const char *name),
+        ("lib = %p, name = %s", lib, name),
+        (lib, name));
+
+// HPI_SystemInterface
+HPIDECL(lasterror, "lasterror", _system, GetLastErrorString, int, "%d",
+        (char *buf, int len),
+        ("buf = %p, len = %d", buf, len),
+        (buf, len));