/* * Copyright (c) 1998, 2010, Oracle and/or its affiliates. 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 SHARE_VM_RUNTIME_HPI_HPP #define SHARE_VM_RUNTIME_HPI_HPP #include "prims/hpi_imported.h" #include "runtime/os.hpp" #include "utilities/globalDefinitions.hpp" #include "utilities/top.hpp" // // 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); // Variant of send that doesn't support interruptible I/O static inline int raw_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, const 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 VM_HPIDECL_VOID(name, names, func, arg_type, arg_print, arg) \ inline void hpi::name arg_type { \ if (TraceHPI) { \ tty->print("hpi::" names "("); \ tty->print arg_print; \ tty->print(") = "); \ } \ func arg; \ } #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 VM_HPIDECL_VOID(dll_build_name, "dll_build_name", os::dll_build_name, (char *buf, int buf_len, const 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)); #endif // SHARE_VM_RUNTIME_HPI_HPP