1 /* |
|
2 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved. |
|
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
|
4 * |
|
5 * This code is free software; you can redistribute it and/or modify it |
|
6 * under the terms of the GNU General Public License version 2 only, as |
|
7 * published by the Free Software Foundation. |
|
8 * |
|
9 * This code is distributed in the hope that it will be useful, but WITHOUT |
|
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
12 * version 2 for more details (a copy is included in the LICENSE file that |
|
13 * accompanied this code). |
|
14 * |
|
15 * You should have received a copy of the GNU General Public License version |
|
16 * 2 along with this work; if not, write to the Free Software Foundation, |
|
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
|
18 * |
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
20 * or visit www.oracle.com if you need additional information or have any |
|
21 * questions. |
|
22 * |
|
23 */ |
|
24 |
|
25 #ifndef SHARE_VM_RUNTIME_HPI_HPP |
|
26 #define SHARE_VM_RUNTIME_HPI_HPP |
|
27 |
|
28 #include "prims/hpi_imported.h" |
|
29 #include "runtime/os.hpp" |
|
30 #include "utilities/globalDefinitions.hpp" |
|
31 #include "utilities/top.hpp" |
|
32 |
|
33 // |
|
34 // C++ wrapper to HPI. |
|
35 // |
|
36 |
|
37 class hpi : AllStatic { |
|
38 |
|
39 private: |
|
40 static GetInterfaceFunc _get_interface; |
|
41 static HPI_FileInterface* _file; |
|
42 static HPI_SocketInterface* _socket; |
|
43 static HPI_LibraryInterface* _library; |
|
44 static HPI_SystemInterface* _system; |
|
45 |
|
46 private: |
|
47 static void initialize_get_interface(vm_calls_t *callbacks); |
|
48 |
|
49 public: |
|
50 // Load and initialize everything except sockets. |
|
51 static jint initialize(); |
|
52 |
|
53 // Socket library needs to be lazy intialized because eagerly |
|
54 // loading Winsock is known to cause "connect to your ISP" |
|
55 // dialog to show up. Or so goes the legend. |
|
56 static jint initialize_socket_library(); |
|
57 |
|
58 // HPI_FileInterface |
|
59 static inline char* native_path(char *path); |
|
60 static inline int file_type(const char *path); |
|
61 static inline int open(const char *name, int mode, int perm); |
|
62 static inline int close(int fd); |
|
63 static inline jlong lseek(int fd, jlong off, int whence); |
|
64 static inline int ftruncate(int fd, jlong length); |
|
65 static inline int fsync(int fd); |
|
66 static inline int available(int fd, jlong *bytes); |
|
67 static inline size_t read(int fd, void *buf, unsigned int nBytes); |
|
68 static inline size_t write(int fd, const void *buf, unsigned int nBytes); |
|
69 static inline int fsize(int fd, jlong *size); |
|
70 |
|
71 // HPI_SocketInterface |
|
72 static inline int socket(int domain, int type, int protocol); |
|
73 static inline int socket_close(int fd); |
|
74 static inline int socket_shutdown(int fd, int howto); |
|
75 static inline int recv(int fd, char *buf, int nBytes, int flags); |
|
76 static inline int send(int fd, char *buf, int nBytes, int flags); |
|
77 // Variant of send that doesn't support interruptible I/O |
|
78 static inline int raw_send(int fd, char *buf, int nBytes, int flags); |
|
79 static inline int timeout(int fd, long timeout); |
|
80 static inline int listen(int fd, int count); |
|
81 static inline int connect(int fd, struct sockaddr *him, int len); |
|
82 static inline int bind(int fd, struct sockaddr *him, int len); |
|
83 static inline int accept(int fd, struct sockaddr *him, int *len); |
|
84 static inline int recvfrom(int fd, char *buf, int nbytes, int flags, |
|
85 struct sockaddr *from, int *fromlen); |
|
86 static inline int get_sock_name(int fd, struct sockaddr *him, int *len); |
|
87 static inline int sendto(int fd, char *buf, int len, int flags, |
|
88 struct sockaddr *to, int tolen); |
|
89 static inline int socket_available(int fd, jint *pbytes); |
|
90 |
|
91 static inline int get_sock_opt(int fd, int level, int optname, |
|
92 char *optval, int* optlen); |
|
93 static inline int set_sock_opt(int fd, int level, int optname, |
|
94 const char *optval, int optlen); |
|
95 static inline int get_host_name(char* name, int namelen); |
|
96 static inline struct hostent* get_host_by_addr(const char* name, int len, int type); |
|
97 static inline struct hostent* get_host_by_name(char* name); |
|
98 static inline struct protoent* get_proto_by_name(char* name); |
|
99 |
|
100 // HPI_LibraryInterface |
|
101 static inline void dll_build_name(char *buf, int buf_len, const char* path, |
|
102 const char *name); |
|
103 static inline void* dll_load(const char *name, char *ebuf, int ebuflen); |
|
104 static inline void dll_unload(void *lib); |
|
105 static inline void* dll_lookup(void *lib, const char *name); |
|
106 |
|
107 // HPI_SystemInterface |
|
108 static inline int lasterror(char *buf, int len); |
|
109 }; |
|
110 |
|
111 // |
|
112 // Macros that provide inline bodies for the functions. |
|
113 // |
|
114 |
|
115 #define HPIDECL(name, names, intf, func, ret_type, ret_fmt, arg_type, arg_print, arg) \ |
|
116 inline ret_type hpi::name arg_type { \ |
|
117 if (TraceHPI) { \ |
|
118 tty->print("hpi::" names "("); \ |
|
119 tty->print arg_print ; \ |
|
120 tty->print(") = "); \ |
|
121 } \ |
|
122 ret_type result = (*intf->func) arg ; \ |
|
123 if (TraceHPI) { \ |
|
124 tty->print_cr(ret_fmt, result); \ |
|
125 } \ |
|
126 return result; \ |
|
127 } |
|
128 |
|
129 // Macro to facilitate moving HPI functionality into the vm. |
|
130 // See bug 6348631. The only difference between this macro and |
|
131 // HPIDECL is that we call a vm method rather than use the HPI |
|
132 // transfer vector. Ultimately, we'll replace HPIDECL with |
|
133 // VM_HPIDECL for all hpi methods. |
|
134 #define VM_HPIDECL(name, names, func, ret_type, ret_fmt, arg_type,arg_print, arg) \ |
|
135 inline ret_type hpi::name arg_type { \ |
|
136 if (TraceHPI) { \ |
|
137 tty->print("hpi::" names "("); \ |
|
138 tty->print arg_print ; \ |
|
139 tty->print(") = "); \ |
|
140 } \ |
|
141 ret_type result = func arg ; \ |
|
142 if (TraceHPI) { \ |
|
143 tty->print_cr(ret_fmt, result); \ |
|
144 } \ |
|
145 return result; \ |
|
146 } |
|
147 |
|
148 #define VM_HPIDECL_VOID(name, names, func, arg_type, arg_print, arg) \ |
|
149 inline void hpi::name arg_type { \ |
|
150 if (TraceHPI) { \ |
|
151 tty->print("hpi::" names "("); \ |
|
152 tty->print arg_print; \ |
|
153 tty->print(") = "); \ |
|
154 } \ |
|
155 func arg; \ |
|
156 } |
|
157 |
|
158 #define HPIDECL_VOID(name, names, intf, func, arg_type, arg_print, arg) \ |
|
159 inline void hpi::name arg_type { \ |
|
160 if (TraceHPI) { \ |
|
161 tty->print("hpi::" names "("); \ |
|
162 tty->print arg_print ; \ |
|
163 tty->print_cr(") = void"); \ |
|
164 } \ |
|
165 (*intf->func) arg ; \ |
|
166 } |
|
167 |
|
168 |
|
169 // The macro calls below realize into |
|
170 // inline char * hpi::native_path(...) { inlined_body; } |
|
171 // etc. |
|
172 |
|
173 // HPI_FileInterface |
|
174 |
|
175 HPIDECL(native_path, "native_path", _file, NativePath, char *, "%s", |
|
176 (char *path), |
|
177 ("path = %s", path), |
|
178 (path)); |
|
179 |
|
180 HPIDECL(file_type, "file_type", _file, FileType, int, "%d", |
|
181 (const char *path), |
|
182 ("path = %s", path), |
|
183 (path)); |
|
184 |
|
185 HPIDECL(open, "open", _file, Open, int, "%d", |
|
186 (const char *name, int mode, int perm), |
|
187 ("name = %s, mode = %d, perm = %d", name, mode, perm), |
|
188 (name, mode, perm)); |
|
189 |
|
190 HPIDECL(lseek, "seek", _file, Seek, jlong, "(a jlong)", |
|
191 (int fd, jlong off, int whence), |
|
192 ("fd = %d, off = (a jlong), whence = %d", fd, /* off, */ whence), |
|
193 (fd, off, whence)); |
|
194 |
|
195 HPIDECL(ftruncate, "ftruncate", _file, SetLength, int, "%d", |
|
196 (int fd, jlong length), |
|
197 ("fd = %d, length = (a jlong)", fd /*, length */), |
|
198 (fd, length)); |
|
199 |
|
200 HPIDECL(fsync, "fsync", _file, Sync, int, "%d", |
|
201 (int fd), |
|
202 ("fd = %d", fd), |
|
203 (fd)); |
|
204 |
|
205 HPIDECL(available, "available", _file, Available, int, "%d", |
|
206 (int fd, jlong *bytes), |
|
207 ("fd = %d, bytes = %p", fd, bytes), |
|
208 (fd, bytes)); |
|
209 |
|
210 HPIDECL(fsize, "fsize", _file, FileSizeFD, int, "%d", |
|
211 (int fd, jlong *size), |
|
212 ("fd = %d, size = %p", fd, size), |
|
213 (fd, size)); |
|
214 |
|
215 // HPI_LibraryInterface |
|
216 VM_HPIDECL_VOID(dll_build_name, "dll_build_name", os::dll_build_name, |
|
217 (char *buf, int buf_len, const char *path, const char *name), |
|
218 ("buf = %p, buflen = %d, path = %s, name = %s", |
|
219 buf, buf_len, path, name), |
|
220 (buf, buf_len, path, name)); |
|
221 |
|
222 VM_HPIDECL(dll_load, "dll_load", os::dll_load, |
|
223 void *, "(void *)%p", |
|
224 (const char *name, char *ebuf, int ebuflen), |
|
225 ("name = %s, ebuf = %p, ebuflen = %d", name, ebuf, ebuflen), |
|
226 (name, ebuf, ebuflen)); |
|
227 |
|
228 HPIDECL_VOID(dll_unload, "dll_unload", _library, UnloadLibrary, |
|
229 (void *lib), |
|
230 ("lib = %p", lib), |
|
231 (lib)); |
|
232 |
|
233 HPIDECL(dll_lookup, "dll_lookup", _library, FindLibraryEntry, void *, "%p", |
|
234 (void *lib, const char *name), |
|
235 ("lib = %p, name = %s", lib, name), |
|
236 (lib, name)); |
|
237 |
|
238 // HPI_SystemInterface |
|
239 HPIDECL(lasterror, "lasterror", _system, GetLastErrorString, int, "%d", |
|
240 (char *buf, int len), |
|
241 ("buf = %p, len = %d", buf, len), |
|
242 (buf, len)); |
|
243 |
|
244 #endif // SHARE_VM_RUNTIME_HPI_HPP |
|