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comparison src/share/vm/prims/hpi_imported.h @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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1 /*
2 * Copyright 1998-2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 /*
26 * HotSpot integration note:
27 *
28 * This is a consolidation of these two files:
29 * src/share/hpi/export/hpi.h 1.15 99/06/18 JDK1.3 beta build I
30 * src/share/hpi/export/dll.h 1.3 98/09/15 JDK1.3 beta build I
31 * from the classic VM.
32 *
33 * bool_t is a type in the classic VM, and we define it here,
34 * but in the future this should be a jboolean.
35 *
36 * The files are included verbatim expect for local includes removed from hpi.h.
37 */
38
39 #ifndef _JAVASOFT_HPI_H_
40 #define _JAVASOFT_HPI_H_
41
42 #ifdef __cplusplus
43 extern "C" {
44 #endif
45
46 /* A classic VMism that should become a jboolean. Fix in 1.2.1? */
47 typedef enum { HPI_FALSE = 0, HPI_TRUE = 1 } bool_t;
48
49 /*
50 * DLL.H: A common interface for helper DLLs loaded by the VM.
51 * Each library exports the main entry point "DLL_Initialize". Through
52 * that function the programmer can obtain a function pointer which has
53 * type "GetInterfaceFunc." Through the function pointer the programmer
54 * can obtain other interfaces supported in the DLL.
55 */
56 typedef jint (JNICALL * GetInterfaceFunc)
57 (void **intfP, const char *name, jint ver);
58
59 jint JNICALL DLL_Initialize(GetInterfaceFunc *, void *args);
60
61
62 /*
63 * Host Porting Interface. This defines the "porting layer" for
64 * POSIX.1 compliant operating systems.
65 */
66
67 /*
68 * memory allocations
69 */
70 typedef struct {
71 /*
72 * Malloc must return a unique pointer if size == 0.
73 */
74 void * (*Malloc)(size_t size);
75 void * (*Realloc)(void *ptr, size_t new_size);
76 /*
77 * Free must allow ptr == NULL to be a no-op.
78 */
79 void (*Free)(void *ptr);
80 /*
81 * Calloc must return a unique pointer for if
82 * n_item == 0 || item_size == 0.
83 */
84 void * (*Calloc)(size_t n_item, size_t item_size);
85 char * (*Strdup)(const char *str);
86
87 void * (*MapMem)(size_t req_size, size_t *maped_size);
88 void * (*UnmapMem)(void *req_addr, size_t req_size, size_t *unmap_size);
89 /*
90 * CommitMem should round the ptr down to the nearest page and
91 * round the size up to the nearest page so that the committed
92 * region is at least as large as the requested region.
93 */
94 void * (*CommitMem)(void *ptr, size_t size, size_t *actual);
95 /*
96 * sysDecommitMem should round the ptr up to the nearest page and
97 * round the size down to the nearest page so that the decommitted
98 * region is no greater than the requested region.
99 */
100 void * (*DecommitMem)(void *ptr, size_t size, size_t *actual);
101
102 #define HPI_PAGE_ALIGNMENT (64 * 1024)
103
104 void * (*AllocBlock)(size_t size, void **headP);
105 void (*FreeBlock)(void *head);
106 } HPI_MemoryInterface;
107
108 /*
109 * dynamic linking libraries
110 */
111 typedef struct {
112 void (*BuildLibName)(char *buf, int buf_len, char *path, const char *name);
113 int (*BuildFunName)(char *name, int name_len, int arg_size, int en_idx);
114
115 void * (*LoadLibrary)(const char *name, char *err_buf, int err_buflen);
116 void (*UnloadLibrary)(void *lib);
117 void * (*FindLibraryEntry)(void *lib, const char *name);
118 } HPI_LibraryInterface;
119
120 typedef void (*signal_handler_t)(int sig, void *siginfo, void *context);
121
122 #define HPI_SIG_DFL (signal_handler_t)0
123 #define HPI_SIG_ERR (signal_handler_t)-1
124 #define HPI_SIG_IGN (signal_handler_t)1
125
126 typedef struct {
127 char *name; /* name such as green/native threads. */
128 int isMP;
129 } HPI_SysInfo;
130
131 typedef struct {
132 HPI_SysInfo * (*GetSysInfo)(void);
133 long (*GetMilliTicks)(void);
134 jlong (*TimeMillis)(void);
135
136 signal_handler_t (*Signal)(int sig, signal_handler_t handler);
137 void (*Raise)(int sig);
138 void (*SignalNotify)(int sig);
139 int (*SignalWait)(void);
140
141 int (*Shutdown)(void);
142
143 int (*SetLoggingLevel)(int level);
144 bool_t (*SetMonitoringOn)(bool_t on);
145 int (*GetLastErrorString)(char *buf, int len);
146 } HPI_SystemInterface;
147
148 /*
149 * threads and monitors
150 */
151 typedef struct sys_thread sys_thread_t;
152 typedef struct sys_mon sys_mon_t;
153
154 #define HPI_OK 0
155 #define HPI_ERR -1
156 #define HPI_INTRPT -2 /* Operation was interrupted */
157 #define HPI_TIMEOUT -3 /* A timer ran out */
158 #define HPI_NOMEM -5 /* Ran out of memory */
159 #define HPI_NORESOURCE -6 /* Ran out of some system resource */
160
161 /* There are three basic states: RUNNABLE, MONITOR_WAIT, and CONDVAR_WAIT.
162 * When the thread is suspended in any of these states, the
163 * HPI_THREAD_SUSPENDED bit will be set
164 */
165 enum {
166 HPI_THREAD_RUNNABLE = 1,
167 HPI_THREAD_MONITOR_WAIT,
168 HPI_THREAD_CONDVAR_WAIT
169 };
170
171 #define HPI_MINIMUM_PRIORITY 1
172 #define HPI_MAXIMUM_PRIORITY 10
173 #define HPI_NORMAL_PRIORITY 5
174
175 #define HPI_THREAD_SUSPENDED 0x8000
176 #define HPI_THREAD_INTERRUPTED 0x4000
177
178 typedef struct {
179 sys_thread_t *owner;
180 int entry_count;
181 sys_thread_t **monitor_waiters;
182 sys_thread_t **condvar_waiters;
183 int sz_monitor_waiters;
184 int sz_condvar_waiters;
185 int n_monitor_waiters;
186 int n_condvar_waiters;
187 } sys_mon_info;
188
189 typedef struct {
190 int (*ThreadBootstrap)(sys_thread_t **tidP,
191 sys_mon_t **qlockP,
192 int nReservedBytes);
193 int (*ThreadCreate)(sys_thread_t **tidP,
194 long stk_size,
195 void (*func)(void *),
196 void *arg);
197 sys_thread_t * (*ThreadSelf)(void);
198 void (*ThreadYield)(void);
199 int (*ThreadSuspend)(sys_thread_t *tid);
200 int (*ThreadResume)(sys_thread_t *tid);
201 int (*ThreadSetPriority)(sys_thread_t *tid, int prio);
202 int (*ThreadGetPriority)(sys_thread_t *tid, int *prio);
203 void * (*ThreadStackPointer)(sys_thread_t *tid);
204 void * (*ThreadStackTop)(sys_thread_t *tid);
205 long * (*ThreadRegs)(sys_thread_t *tid, int *regs);
206 int (*ThreadSingle)(void);
207 void (*ThreadMulti)(void);
208 int (*ThreadEnumerateOver)(int (*func)(sys_thread_t *, void *),
209 void *arg);
210 int (*ThreadCheckStack)(void);
211 void (*ThreadPostException)(sys_thread_t *tid, void *arg);
212 void (*ThreadInterrupt)(sys_thread_t *tid);
213 int (*ThreadIsInterrupted)(sys_thread_t *tid, int clear);
214 int (*ThreadAlloc)(sys_thread_t **tidP);
215 int (*ThreadFree)(void);
216 jlong (*ThreadCPUTime)(void);
217 int (*ThreadGetStatus)(sys_thread_t *tid, sys_mon_t **monitor);
218 void * (*ThreadInterruptEvent)(void);
219 void * (*ThreadNativeID)(sys_thread_t *tid);
220
221 /* These three functions are used by the CPU time profiler.
222 * sysThreadIsRunning determines whether the thread is running (not just
223 * runnable). It is only safe to call this function after calling
224 * sysThreadProfSuspend.
225 */
226 bool_t (*ThreadIsRunning)(sys_thread_t *tid);
227 void (*ThreadProfSuspend)(sys_thread_t *tid);
228 void (*ThreadProfResume)(sys_thread_t *tid);
229
230 int (*AdjustTimeSlice)(int ms);
231
232 size_t (*MonitorSizeof)(void);
233 int (*MonitorInit)(sys_mon_t *mid);
234 int (*MonitorDestroy)(sys_mon_t *mid);
235 int (*MonitorEnter)(sys_thread_t *self, sys_mon_t *mid);
236 bool_t (*MonitorEntered)(sys_thread_t *self, sys_mon_t *mid);
237 int (*MonitorExit)(sys_thread_t *self, sys_mon_t *mid);
238 int (*MonitorNotify)(sys_thread_t *self, sys_mon_t *mid);
239 int (*MonitorNotifyAll)(sys_thread_t *self, sys_mon_t *mid);
240 int (*MonitorWait)(sys_thread_t *self, sys_mon_t *mid, jlong ms);
241 bool_t (*MonitorInUse)(sys_mon_t *mid);
242 sys_thread_t * (*MonitorOwner)(sys_mon_t *mid);
243 int (*MonitorGetInfo)(sys_mon_t *mid, sys_mon_info *info);
244
245 } HPI_ThreadInterface;
246
247 /*
248 * files
249 */
250
251 #define HPI_FILETYPE_REGULAR (0)
252 #define HPI_FILETYPE_DIRECTORY (1)
253 #define HPI_FILETYPE_OTHER (2)
254
255 typedef struct {
256 char * (*NativePath)(char *path);
257 int (*FileType)(const char *path);
258 int (*Open)(const char *name, int openMode, int filePerm);
259 int (*Close)(int fd);
260 jlong (*Seek)(int fd, jlong offset, int whence);
261 int (*SetLength)(int fd, jlong length);
262 int (*Sync)(int fd);
263 int (*Available)(int fd, jlong *bytes);
264 size_t (*Read)(int fd, void *buf, unsigned int nBytes);
265 size_t (*Write)(int fd, const void *buf, unsigned int nBytes);
266 int (*FileSizeFD)(int fd, jlong *size);
267 } HPI_FileInterface;
268
269 /*
270 * sockets
271 */
272 struct sockaddr;
273 struct hostent;
274
275 typedef struct {
276 int (*Close)(int fd);
277 long (*Available)(int fd, jint *pbytes);
278 int (*Connect)(int fd, struct sockaddr *him, int len);
279 int (*Accept)(int fd, struct sockaddr *him, int *len);
280 int (*SendTo)(int fd, char *buf, int len, int flags,
281 struct sockaddr *to, int tolen);
282 int (*RecvFrom)(int fd, char *buf, int nbytes, int flags,
283 struct sockaddr *from, int *fromlen);
284 int (*Listen)(int fd, long count);
285 int (*Recv)(int fd, char *buf, int nBytes, int flags);
286 int (*Send)(int fd, char *buf, int nBytes, int flags);
287 int (*Timeout)(int fd, long timeout);
288 struct hostent * (*GetHostByName)(char *hostname);
289 int (*Socket)(int domain, int type, int protocol);
290 int (*SocketShutdown)(int fd, int howto);
291 int (*Bind)(int fd, struct sockaddr *him, int len);
292 int (*GetSocketName)(int fd, struct sockaddr *him, int *len);
293 int (*GetHostName)(char *hostname, int namelen);
294 struct hostent * (*GetHostByAddr)(const char *hostname, int len, int type);
295 int (*SocketGetOption)(int fd, int level, int optname, char *optval, int *optlen);
296 int (*SocketSetOption)(int fd, int level, int optname, const char *optval, int optlen);
297 struct protoent * (*GetProtoByName)(char* name);
298 } HPI_SocketInterface;
299
300 /*
301 * callbacks.
302 */
303 typedef struct vm_calls {
304 int (*jio_fprintf)(FILE *fp, const char *fmt, ...);
305 void (*panic)(const char *fmt, ...);
306 void (*monitorRegister)(sys_mon_t *mid, char *info_str);
307
308 void (*monitorContendedEnter)(sys_thread_t *self, sys_mon_t *mid);
309 void (*monitorContendedEntered)(sys_thread_t *self, sys_mon_t *mid);
310 void (*monitorContendedExit)(sys_thread_t *self, sys_mon_t *mid);
311 } vm_calls_t;
312
313 #ifdef __cplusplus
314 }
315 #endif
316
317 #endif /* !_JAVASOFT_HPI_H_ */