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1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
2 /* | |
3 * The contents of this file are subject to the Mozilla Public | |
4 * License Version 1.1 (the "License"); you may not use this file | |
5 * except in compliance with the License. You may obtain a copy of | |
6 * the License at http://www.mozilla.org/MPL/ | |
7 * | |
8 * Software distributed under the License is distributed on an "AS | |
9 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or | |
10 * implied. See the License for the specific language governing | |
11 * rights and limitations under the License. | |
12 * | |
13 * The Original Code is the Netscape Portable Runtime (NSPR). | |
14 * | |
15 * The Initial Developer of the Original Code is Netscape | |
16 * Communications Corporation. Portions created by Netscape are | |
17 * Copyright (C) 1998-2000 Netscape Communications Corporation. All | |
18 * Rights Reserved. | |
19 * | |
20 * Contributor(s): | |
21 * | |
22 * Alternatively, the contents of this file may be used under the | |
23 * terms of the GNU General Public License Version 2 or later (the | |
24 * "GPL"), in which case the provisions of the GPL are applicable | |
25 * instead of those above. If you wish to allow use of your | |
26 * version of this file only under the terms of the GPL and not to | |
27 * allow others to use your version of this file under the MPL, | |
28 * indicate your decision by deleting the provisions above and | |
29 * replace them with the notice and other provisions required by | |
30 * the GPL. If you do not delete the provisions above, a recipient | |
31 * may use your version of this file under either the MPL or the | |
32 * GPL. | |
33 */ | |
34 | |
35 #ifndef nspr_os2_defs_h___ | |
36 #define nspr_os2_defs_h___ | |
37 | |
38 #define INCL_DOS | |
39 #define INCL_DOSPROCESS | |
40 #define INCL_DOSERRORS | |
41 #define INCL_WIN | |
42 #define INCL_WPS | |
43 #include <os2.h> | |
44 #include <sys/select.h> | |
45 | |
46 #include "prio.h" | |
47 | |
48 #include <errno.h> | |
49 | |
50 #ifdef XP_OS2_VACPP | |
51 /* TODO RAMSEMs need to be written for GCC/EMX */ | |
52 #define USE_RAMSEM | |
53 #endif | |
54 | |
55 #ifdef USE_RAMSEM | |
56 #pragma pack(4) | |
57 | |
58 #pragma pack(2) | |
59 typedef struct _RAMSEM | |
60 { | |
61 ULONG ulTIDPID; | |
62 ULONG hevSem; | |
63 ULONG cLocks; | |
64 USHORT cWaiting; | |
65 USHORT cPosts; | |
66 } RAMSEM, *PRAMSEM; | |
67 | |
68 typedef struct _CRITICAL_SECTION | |
69 { | |
70 ULONG ulReserved[4]; /* Same size as RAMSEM */ | |
71 } CRITICAL_SECTION, *PCRITICAL_SECTION, *LPCRITICAL_SECTION; | |
72 #pragma pack(4) | |
73 | |
74 APIRET _Optlink SemRequest486(PRAMSEM, ULONG); | |
75 APIRET _Optlink SemReleasex86(PRAMSEM, ULONG); | |
76 #endif | |
77 | |
78 /* | |
79 * Internal configuration macros | |
80 */ | |
81 | |
82 #define PR_LINKER_ARCH "os2" | |
83 #define _PR_SI_SYSNAME "OS2" | |
84 #define _PR_SI_ARCHITECTURE "x86" /* XXXMB hardcode for now */ | |
85 | |
86 #define HAVE_DLL | |
87 #define _PR_GLOBAL_THREADS_ONLY | |
88 #undef HAVE_THREAD_AFFINITY | |
89 #define _PR_HAVE_THREADSAFE_GETHOST | |
90 #define _PR_HAVE_ATOMIC_OPS | |
91 | |
92 #define HANDLE unsigned long | |
93 #define HINSTANCE HMODULE | |
94 | |
95 /* --- Common User-Thread/Native-Thread Definitions --------------------- */ | |
96 | |
97 /* --- Globals --- */ | |
98 extern struct PRLock *_pr_schedLock; | |
99 | |
100 /* --- Typedefs --- */ | |
101 typedef void (*FiberFunc)(void *); | |
102 | |
103 #define PR_NUM_GCREGS 8 | |
104 typedef PRInt32 PR_CONTEXT_TYPE[PR_NUM_GCREGS]; | |
105 #define GC_VMBASE 0x40000000 | |
106 #define GC_VMLIMIT 0x00FFFFFF | |
107 typedef int (*FARPROC)(); | |
108 | |
109 #define _MD_MAGIC_THREAD 0x22222222 | |
110 #define _MD_MAGIC_THREADSTACK 0x33333333 | |
111 #define _MD_MAGIC_SEGMENT 0x44444444 | |
112 #define _MD_MAGIC_DIR 0x55555555 | |
113 #define _MD_MAGIC_CV 0x66666666 | |
114 | |
115 struct _MDSemaphore { | |
116 HEV sem; | |
117 }; | |
118 | |
119 struct _MDCPU { | |
120 int unused; | |
121 }; | |
122 | |
123 struct _MDThread { | |
124 HEV blocked_sema; /* Threads block on this when waiting | |
125 * for IO or CondVar. | |
126 */ | |
127 PRBool inCVWaitQueue; /* PR_TRUE if the thread is in the | |
128 * wait queue of some cond var. | |
129 * PR_FALSE otherwise. */ | |
130 TID handle; /* OS/2 thread handle */ | |
131 void *sp; /* only valid when suspended */ | |
132 PRUint32 magic; /* for debugging */ | |
133 PR_CONTEXT_TYPE gcContext; /* Thread context for GC */ | |
134 struct PRThread *prev, *next; /* used by the cvar wait queue to | |
135 * chain the PRThread structures | |
136 * together */ | |
137 }; | |
138 | |
139 struct _MDThreadStack { | |
140 PRUint32 magic; /* for debugging */ | |
141 }; | |
142 | |
143 struct _MDSegment { | |
144 PRUint32 magic; /* for debugging */ | |
145 }; | |
146 | |
147 #undef PROFILE_LOCKS | |
148 | |
149 struct _MDDir { | |
150 HDIR d_hdl; | |
151 FILEFINDBUF3 d_entry; | |
152 PRBool firstEntry; /* Is this the entry returned | |
153 * by FindFirstFile()? */ | |
154 PRUint32 magic; /* for debugging */ | |
155 }; | |
156 | |
157 struct _MDCVar { | |
158 PRUint32 magic; | |
159 struct PRThread *waitHead, *waitTail; /* the wait queue: a doubly- | |
160 * linked list of threads | |
161 * waiting on this condition | |
162 * variable */ | |
163 PRIntn nwait; /* number of threads in the | |
164 * wait queue */ | |
165 }; | |
166 | |
167 #define _MD_CV_NOTIFIED_LENGTH 6 | |
168 typedef struct _MDNotified _MDNotified; | |
169 struct _MDNotified { | |
170 PRIntn length; /* # of used entries in this | |
171 * structure */ | |
172 struct { | |
173 struct _MDCVar *cv; /* the condition variable notified */ | |
174 PRIntn times; /* and the number of times notified */ | |
175 struct PRThread *notifyHead; /* list of threads to wake up */ | |
176 } cv[_MD_CV_NOTIFIED_LENGTH]; | |
177 _MDNotified *link; /* link to another of these, or NULL */ | |
178 }; | |
179 | |
180 struct _MDLock { | |
181 #ifdef USE_RAMSEM | |
182 CRITICAL_SECTION mutex; /* this is recursive on NT */ | |
183 #else | |
184 HMTX mutex; /* this is recursive on NT */ | |
185 #endif | |
186 | |
187 /* | |
188 * When notifying cvars, there is no point in actually | |
189 * waking up the threads waiting on the cvars until we've | |
190 * released the lock. So, we temporarily record the cvars. | |
191 * When doing an unlock, we'll then wake up the waiting threads. | |
192 */ | |
193 struct _MDNotified notified; /* array of conditions notified */ | |
194 #ifdef PROFILE_LOCKS | |
195 PRInt32 hitcount; | |
196 PRInt32 misscount; | |
197 #endif | |
198 }; | |
199 | |
200 struct _MDFileDesc { | |
201 PRInt32 osfd; /* The osfd can come from one of three spaces: | |
202 * - For stdin, stdout, and stderr, we are using | |
203 * the libc file handle (0, 1, 2), which is an int. | |
204 * - For files and pipes, we are using OS/2 handles, | |
205 * which is a void*. | |
206 * - For sockets, we are using int | |
207 */ | |
208 }; | |
209 | |
210 struct _MDProcess { | |
211 PID pid; | |
212 }; | |
213 | |
214 /* --- Misc stuff --- */ | |
215 #define _MD_GET_SP(thread) (thread)->md.gcContext[6] | |
216 | |
217 /* --- IO stuff --- */ | |
218 | |
219 #define _MD_OPEN (_PR_MD_OPEN) | |
220 #define _MD_OPEN_FILE (_PR_MD_OPEN) | |
221 #define _MD_READ (_PR_MD_READ) | |
222 #define _MD_WRITE (_PR_MD_WRITE) | |
223 #define _MD_WRITEV (_PR_MD_WRITEV) | |
224 #define _MD_LSEEK (_PR_MD_LSEEK) | |
225 #define _MD_LSEEK64 (_PR_MD_LSEEK64) | |
226 extern PRInt32 _MD_CloseFile(PRInt32 osfd); | |
227 #define _MD_CLOSE_FILE _MD_CloseFile | |
228 #define _MD_GETFILEINFO (_PR_MD_GETFILEINFO) | |
229 #define _MD_GETFILEINFO64 (_PR_MD_GETFILEINFO64) | |
230 #define _MD_GETOPENFILEINFO (_PR_MD_GETOPENFILEINFO) | |
231 #define _MD_GETOPENFILEINFO64 (_PR_MD_GETOPENFILEINFO64) | |
232 #define _MD_STAT (_PR_MD_STAT) | |
233 #define _MD_RENAME (_PR_MD_RENAME) | |
234 #define _MD_ACCESS (_PR_MD_ACCESS) | |
235 #define _MD_DELETE (_PR_MD_DELETE) | |
236 #define _MD_MKDIR (_PR_MD_MKDIR) | |
237 #define _MD_MAKE_DIR (_PR_MD_MKDIR) | |
238 #define _MD_RMDIR (_PR_MD_RMDIR) | |
239 #define _MD_LOCKFILE (_PR_MD_LOCKFILE) | |
240 #define _MD_TLOCKFILE (_PR_MD_TLOCKFILE) | |
241 #define _MD_UNLOCKFILE (_PR_MD_UNLOCKFILE) | |
242 | |
243 /* --- Socket IO stuff --- */ | |
244 | |
245 #define TCPV40HDRS | |
246 #define BSD_SELECT | |
247 | |
248 /* The ones that don't map directly may need to be re-visited... */ | |
249 #ifdef XP_OS2_VACPP | |
250 #define EPIPE EBADF | |
251 #define EIO ECONNREFUSED | |
252 #endif | |
253 #define _MD_EACCES EACCES | |
254 #define _MD_EADDRINUSE EADDRINUSE | |
255 #define _MD_EADDRNOTAVAIL EADDRNOTAVAIL | |
256 #define _MD_EAFNOSUPPORT EAFNOSUPPORT | |
257 #define _MD_EAGAIN EWOULDBLOCK | |
258 #define _MD_EALREADY EALREADY | |
259 #define _MD_EBADF EBADF | |
260 #define _MD_ECONNREFUSED ECONNREFUSED | |
261 #define _MD_ECONNRESET ECONNRESET | |
262 #define _MD_EFAULT SOCEFAULT | |
263 #define _MD_EINPROGRESS EINPROGRESS | |
264 #define _MD_EINTR EINTR | |
265 #define _MD_EINVAL EINVAL | |
266 #define _MD_EISCONN EISCONN | |
267 #define _MD_ENETUNREACH ENETUNREACH | |
268 #define _MD_ENOENT ENOENT | |
269 #define _MD_ENOTCONN ENOTCONN | |
270 #define _MD_ENOTSOCK ENOTSOCK | |
271 #define _MD_EOPNOTSUPP EOPNOTSUPP | |
272 #define _MD_EWOULDBLOCK EWOULDBLOCK | |
273 #define _MD_GET_SOCKET_ERROR() sock_errno() | |
274 #ifndef INADDR_LOOPBACK /* For some reason this is not defined in OS2 tcpip */ | |
275 /* #define INADDR_LOOPBACK INADDR_ANY */ | |
276 #endif | |
277 | |
278 #define _MD_INIT_FILEDESC(fd) | |
279 extern void _MD_MakeNonblock(PRFileDesc *f); | |
280 #define _MD_MAKE_NONBLOCK _MD_MakeNonblock | |
281 #define _MD_INIT_FD_INHERITABLE (_PR_MD_INIT_FD_INHERITABLE) | |
282 #define _MD_QUERY_FD_INHERITABLE (_PR_MD_QUERY_FD_INHERITABLE) | |
283 #define _MD_SHUTDOWN (_PR_MD_SHUTDOWN) | |
284 #define _MD_LISTEN _PR_MD_LISTEN | |
285 extern PRInt32 _MD_CloseSocket(PRInt32 osfd); | |
286 #define _MD_CLOSE_SOCKET _MD_CloseSocket | |
287 #define _MD_SENDTO (_PR_MD_SENDTO) | |
288 #define _MD_RECVFROM (_PR_MD_RECVFROM) | |
289 #define _MD_SOCKETPAIR (_PR_MD_SOCKETPAIR) | |
290 #define _MD_GETSOCKNAME (_PR_MD_GETSOCKNAME) | |
291 #define _MD_GETPEERNAME (_PR_MD_GETPEERNAME) | |
292 #define _MD_GETSOCKOPT (_PR_MD_GETSOCKOPT) | |
293 #define _MD_SETSOCKOPT (_PR_MD_SETSOCKOPT) | |
294 | |
295 #define _MD_FSYNC _PR_MD_FSYNC | |
296 #define _MD_SET_FD_INHERITABLE (_PR_MD_SET_FD_INHERITABLE) | |
297 | |
298 #ifdef _PR_HAVE_ATOMIC_OPS | |
299 #define _MD_INIT_ATOMIC() | |
300 #define _MD_ATOMIC_INCREMENT _PR_MD_ATOMIC_INCREMENT | |
301 #define _MD_ATOMIC_ADD _PR_MD_ATOMIC_ADD | |
302 #define _MD_ATOMIC_DECREMENT _PR_MD_ATOMIC_DECREMENT | |
303 #define _MD_ATOMIC_SET _PR_MD_ATOMIC_SET | |
304 #endif | |
305 | |
306 #define _MD_INIT_IO (_PR_MD_INIT_IO) | |
307 #define _MD_PR_POLL (_PR_MD_PR_POLL) | |
308 | |
309 #define _MD_SOCKET (_PR_MD_SOCKET) | |
310 extern PRInt32 _MD_SocketAvailable(PRFileDesc *fd); | |
311 #define _MD_SOCKETAVAILABLE _MD_SocketAvailable | |
312 #define _MD_PIPEAVAILABLE _MD_SocketAvailable | |
313 #define _MD_CONNECT (_PR_MD_CONNECT) | |
314 extern PRInt32 _MD_Accept(PRFileDesc *fd, PRNetAddr *raddr, PRUint32 *rlen, | |
315 PRIntervalTime timeout); | |
316 #define _MD_ACCEPT _MD_Accept | |
317 #define _MD_BIND (_PR_MD_BIND) | |
318 #define _MD_RECV (_PR_MD_RECV) | |
319 #define _MD_SEND (_PR_MD_SEND) | |
320 | |
321 /* --- Scheduler stuff --- */ | |
322 /* #define _MD_PAUSE_CPU _PR_MD_PAUSE_CPU */ | |
323 #define _MD_PAUSE_CPU | |
324 | |
325 /* --- DIR stuff --- */ | |
326 #define PR_DIRECTORY_SEPARATOR '\\' | |
327 #define PR_DIRECTORY_SEPARATOR_STR "\\" | |
328 #define PR_PATH_SEPARATOR ';' | |
329 #define PR_PATH_SEPARATOR_STR ";" | |
330 #define _MD_ERRNO() errno | |
331 #define _MD_OPEN_DIR (_PR_MD_OPEN_DIR) | |
332 #define _MD_CLOSE_DIR (_PR_MD_CLOSE_DIR) | |
333 #define _MD_READ_DIR (_PR_MD_READ_DIR) | |
334 | |
335 /* --- Segment stuff --- */ | |
336 #define _MD_INIT_SEGS() | |
337 #define _MD_ALLOC_SEGMENT(seg, size, vaddr) 0 | |
338 #define _MD_FREE_SEGMENT(seg) | |
339 | |
340 /* --- Environment Stuff --- */ | |
341 #define _MD_GET_ENV (_PR_MD_GET_ENV) | |
342 #define _MD_PUT_ENV (_PR_MD_PUT_ENV) | |
343 | |
344 /* --- Threading Stuff --- */ | |
345 #define _MD_DEFAULT_STACK_SIZE 65536L | |
346 #define _MD_INIT_THREAD (_PR_MD_INIT_THREAD) | |
347 #define _MD_INIT_ATTACHED_THREAD (_PR_MD_INIT_THREAD) | |
348 #define _MD_CREATE_THREAD (_PR_MD_CREATE_THREAD) | |
349 #define _MD_YIELD (_PR_MD_YIELD) | |
350 #define _MD_SET_PRIORITY (_PR_MD_SET_PRIORITY) | |
351 #define _MD_CLEAN_THREAD (_PR_MD_CLEAN_THREAD) | |
352 #define _MD_SETTHREADAFFINITYMASK (_PR_MD_SETTHREADAFFINITYMASK) | |
353 #define _MD_GETTHREADAFFINITYMASK (_PR_MD_GETTHREADAFFINITYMASK) | |
354 #define _MD_EXIT_THREAD (_PR_MD_EXIT_THREAD) | |
355 #define _MD_SUSPEND_THREAD (_PR_MD_SUSPEND_THREAD) | |
356 #define _MD_RESUME_THREAD (_PR_MD_RESUME_THREAD) | |
357 #define _MD_SUSPEND_CPU (_PR_MD_SUSPEND_CPU) | |
358 #define _MD_RESUME_CPU (_PR_MD_RESUME_CPU) | |
359 #define _MD_WAKEUP_CPUS (_PR_MD_WAKEUP_CPUS) | |
360 #define _MD_BEGIN_SUSPEND_ALL() | |
361 #define _MD_BEGIN_RESUME_ALL() | |
362 #define _MD_END_SUSPEND_ALL() | |
363 #define _MD_END_RESUME_ALL() | |
364 | |
365 /* --- Lock stuff --- */ | |
366 #define _PR_LOCK _MD_LOCK | |
367 #define _PR_UNLOCK _MD_UNLOCK | |
368 | |
369 #ifdef USE_RAMSEM | |
370 #define _MD_NEW_LOCK (_PR_MD_NEW_LOCK) | |
371 #define _MD_FREE_LOCK(lock) (DosCloseEventSem(((PRAMSEM)(&((lock)->mut
ex)))->hevSem)) | |
372 #define _MD_LOCK(lock) (SemRequest486(&((lock)->mutex), -1)) | |
373 #define _MD_TEST_AND_LOCK(lock) (SemRequest486(&((lock)->mutex), -1),0) | |
374 #define _MD_UNLOCK(lock) \ | |
375 PR_BEGIN_MACRO \ | |
376 if (0 != (lock)->notified.length) { \ | |
377 md_UnlockAndPostNotifies((lock), NULL, NULL); \ | |
378 } else { \ | |
379 SemReleasex86( &(lock)->mutex, 0 ); \ | |
380 } \ | |
381 PR_END_MACRO | |
382 #else | |
383 #define _MD_NEW_LOCK (_PR_MD_NEW_LOCK) | |
384 #define _MD_FREE_LOCK(lock) (DosCloseMutexSem((lock)->mutex)) | |
385 #define _MD_LOCK(lock) (DosRequestMutexSem((lock)->mutex, SEM_IND
EFINITE_WAIT)) | |
386 #define _MD_TEST_AND_LOCK(lock) (DosRequestMutexSem((lock)->mutex, SEM_IND
EFINITE_WAIT),0) | |
387 #define _MD_UNLOCK(lock) \ | |
388 PR_BEGIN_MACRO \ | |
389 if (0 != (lock)->notified.length) { \ | |
390 md_UnlockAndPostNotifies((lock), NULL, NULL); \ | |
391 } else { \ | |
392 DosReleaseMutexSem((lock)->mutex); \ | |
393 } \ | |
394 PR_END_MACRO | |
395 #endif | |
396 | |
397 /* --- lock and cv waiting --- */ | |
398 #define _MD_WAIT (_PR_MD_WAIT) | |
399 #define _MD_WAKEUP_WAITER (_PR_MD_WAKEUP_WAITER) | |
400 | |
401 /* --- CVar ------------------- */ | |
402 #define _MD_WAIT_CV (_PR_MD_WAIT_CV) | |
403 #define _MD_NEW_CV (_PR_MD_NEW_CV) | |
404 #define _MD_FREE_CV (_PR_MD_FREE_CV) | |
405 #define _MD_NOTIFY_CV (_PR_MD_NOTIFY_CV ) | |
406 #define _MD_NOTIFYALL_CV (_PR_MD_NOTIFYALL_CV) | |
407 | |
408 /* XXXMB- the IOQ stuff is certainly not working correctly yet. */ | |
409 /* extern struct _MDLock _pr_ioq_lock; */ | |
410 #define _MD_IOQ_LOCK() | |
411 #define _MD_IOQ_UNLOCK() | |
412 | |
413 | |
414 /* --- Initialization stuff --- */ | |
415 #define _MD_START_INTERRUPTS() | |
416 #define _MD_STOP_INTERRUPTS() | |
417 #define _MD_DISABLE_CLOCK_INTERRUPTS() | |
418 #define _MD_ENABLE_CLOCK_INTERRUPTS() | |
419 #define _MD_BLOCK_CLOCK_INTERRUPTS() | |
420 #define _MD_UNBLOCK_CLOCK_INTERRUPTS() | |
421 #define _MD_EARLY_INIT (_PR_MD_EARLY_INIT) | |
422 #define _MD_FINAL_INIT() | |
423 #define _MD_INIT_CPUS() | |
424 #define _MD_INIT_RUNNING_CPU(cpu) | |
425 | |
426 struct PRProcess; | |
427 struct PRProcessAttr; | |
428 | |
429 #define _MD_CREATE_PROCESS _PR_CreateOS2Process | |
430 extern struct PRProcess * _PR_CreateOS2Process( | |
431 const char *path, | |
432 char *const *argv, | |
433 char *const *envp, | |
434 const struct PRProcessAttr *attr | |
435 ); | |
436 | |
437 #define _MD_DETACH_PROCESS _PR_DetachOS2Process | |
438 extern PRStatus _PR_DetachOS2Process(struct PRProcess *process); | |
439 | |
440 /* --- Wait for a child process to terminate --- */ | |
441 #define _MD_WAIT_PROCESS _PR_WaitOS2Process | |
442 extern PRStatus _PR_WaitOS2Process(struct PRProcess *process, | |
443 PRInt32 *exitCode); | |
444 | |
445 #define _MD_KILL_PROCESS _PR_KillOS2Process | |
446 extern PRStatus _PR_KillOS2Process(struct PRProcess *process); | |
447 | |
448 #define _MD_CLEANUP_BEFORE_EXIT() | |
449 #define _MD_EXIT (_PR_MD_EXIT) | |
450 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \ | |
451 PR_BEGIN_MACRO \ | |
452 *status = PR_TRUE; \ | |
453 PR_END_MACRO | |
454 #define _MD_SWITCH_CONTEXT | |
455 #define _MD_RESTORE_CONTEXT | |
456 | |
457 /* --- Intervals --- */ | |
458 #define _MD_INTERVAL_INIT (_PR_MD_INTERVAL_INIT) | |
459 #define _MD_GET_INTERVAL (_PR_MD_GET_INTERVAL) | |
460 #define _MD_INTERVAL_PER_SEC (_PR_MD_INTERVAL_PER_SEC) | |
461 #define _MD_INTERVAL_PER_MILLISEC() (_PR_MD_INTERVAL_PER_SEC() / 1000) | |
462 #define _MD_INTERVAL_PER_MICROSEC() (_PR_MD_INTERVAL_PER_SEC() / 1000000) | |
463 | |
464 /* --- Native-Thread Specific Definitions ------------------------------- */ | |
465 | |
466 typedef struct __NSPR_TLS | |
467 { | |
468 struct PRThread *_pr_thread_last_run; | |
469 struct PRThread *_pr_currentThread; | |
470 struct _PRCPU *_pr_currentCPU; | |
471 } _NSPR_TLS; | |
472 | |
473 extern _NSPR_TLS* pThreadLocalStorage; | |
474 NSPR_API(void) _PR_MD_ENSURE_TLS(void); | |
475 | |
476 #define _MD_GET_ATTACHED_THREAD() pThreadLocalStorage->_pr_currentThread | |
477 extern struct PRThread * _MD_CURRENT_THREAD(void); | |
478 #define _MD_SET_CURRENT_THREAD(_thread) _PR_MD_ENSURE_TLS(); pThreadLocalStorage
->_pr_currentThread = (_thread) | |
479 | |
480 #define _MD_LAST_THREAD() pThreadLocalStorage->_pr_thread_last_run | |
481 #define _MD_SET_LAST_THREAD(_thread) _PR_MD_ENSURE_TLS(); pThreadLocalStorage->_
pr_thread_last_run = (_thread) | |
482 | |
483 #define _MD_CURRENT_CPU() pThreadLocalStorage->_pr_currentCPU | |
484 #define _MD_SET_CURRENT_CPU(_cpu) _PR_MD_ENSURE_TLS(); pThreadLocalStorage->_pr_
currentCPU = (_cpu) | |
485 | |
486 /* lth. #define _MD_SET_INTSOFF(_val) (_pr_ints_off = (_val)) */ | |
487 /* lth. #define _MD_GET_INTSOFF() _pr_ints_off */ | |
488 /* lth. #define _MD_INCREMENT_INTSOFF() (_pr_ints_off++) */ | |
489 /* lth. #define _MD_DECREMENT_INTSOFF() (_pr_ints_off--) */ | |
490 | |
491 /* --- Scheduler stuff --- */ | |
492 #define LOCK_SCHEDULER() 0 | |
493 #define UNLOCK_SCHEDULER() 0 | |
494 #define _PR_LockSched() 0 | |
495 #define _PR_UnlockSched() 0 | |
496 | |
497 /* --- Initialization stuff --- */ | |
498 #define _MD_INIT_LOCKS() | |
499 | |
500 /* --- Stack stuff --- */ | |
501 #define _MD_INIT_STACK(stack, redzone) | |
502 #define _MD_CLEAR_STACK(stack) | |
503 | |
504 /* --- Memory-mapped files stuff --- not implemented on OS/2 */ | |
505 | |
506 struct _MDFileMap { | |
507 PRInt8 unused; | |
508 }; | |
509 | |
510 extern PRStatus _MD_CreateFileMap(struct PRFileMap *fmap, PRInt64 size); | |
511 #define _MD_CREATE_FILE_MAP _MD_CreateFileMap | |
512 | |
513 extern PRInt32 _MD_GetMemMapAlignment(void); | |
514 #define _MD_GET_MEM_MAP_ALIGNMENT _MD_GetMemMapAlignment | |
515 | |
516 extern void * _MD_MemMap(struct PRFileMap *fmap, PRInt64 offset, | |
517 PRUint32 len); | |
518 #define _MD_MEM_MAP _MD_MemMap | |
519 | |
520 extern PRStatus _MD_MemUnmap(void *addr, PRUint32 size); | |
521 #define _MD_MEM_UNMAP _MD_MemUnmap | |
522 | |
523 extern PRStatus _MD_CloseFileMap(struct PRFileMap *fmap); | |
524 #define _MD_CLOSE_FILE_MAP _MD_CloseFileMap | |
525 | |
526 /* Some stuff for setting up thread contexts */ | |
527 typedef ULONG DWORD, *PDWORD; | |
528 | |
529 /* The following definitions and two structures are new in OS/2 Warp 4.0. | |
530 */ | |
531 #ifndef CONTEXT_CONTROL | |
532 #define CONTEXT_CONTROL 0x00000001 | |
533 #define CONTEXT_INTEGER 0x00000002 | |
534 #define CONTEXT_SEGMENTS 0x00000004 | |
535 #define CONTEXT_FLOATING_POINT 0x00000008 | |
536 #define CONTEXT_FULL 0x0000000F | |
537 | |
538 #pragma pack(2) | |
539 typedef struct _FPREG { | |
540 ULONG losig; /* Low 32-bits of the significand. */ | |
541 ULONG hisig; /* High 32-bits of the significand. */ | |
542 USHORT signexp; /* Sign and exponent. */ | |
543 } FPREG; | |
544 typedef struct _CONTEXTRECORD { | |
545 ULONG ContextFlags; | |
546 ULONG ctx_env[7]; | |
547 FPREG ctx_stack[8]; | |
548 ULONG ctx_SegGs; /* GS register. */ | |
549 ULONG ctx_SegFs; /* FS register. */ | |
550 ULONG ctx_SegEs; /* ES register. */ | |
551 ULONG ctx_SegDs; /* DS register. */ | |
552 ULONG ctx_RegEdi; /* EDI register. */ | |
553 ULONG ctx_RegEsi; /* ESI register. */ | |
554 ULONG ctx_RegEax; /* EAX register. */ | |
555 ULONG ctx_RegEbx; /* EBX register. */ | |
556 ULONG ctx_RegEcx; /* ECX register. */ | |
557 ULONG ctx_RegEdx; /* EDX register. */ | |
558 ULONG ctx_RegEbp; /* EBP register. */ | |
559 ULONG ctx_RegEip; /* EIP register. */ | |
560 ULONG ctx_SegCs; /* CS register. */ | |
561 ULONG ctx_EFlags; /* EFLAGS register. */ | |
562 ULONG ctx_RegEsp; /* ESP register. */ | |
563 ULONG ctx_SegSs; /* SS register. */ | |
564 } CONTEXTRECORD, *PCONTEXTRECORD; | |
565 #pragma pack() | |
566 #endif | |
567 | |
568 extern APIRET (* APIENTRY QueryThreadContext)(TID, ULONG, PCONTEXTRECORD); | |
569 unsigned long _System _DLL_InitTerm( unsigned long mod_handle, unsigned long fla
g); | |
570 | |
571 /* | |
572 #define _pr_tid (((PTIB2)_getTIBvalue(offsetof(TIB, tib_ptib2)))->tib
2_ultid) | |
573 #define _pr_current_Thread (_system_tls[_pr_tid-1].__pr_current_thread) | |
574 */ | |
575 | |
576 /* Some simple mappings of Windows API's to OS/2 API's to make our lives a | |
577 * little bit easier. Only add one here if it is a DIRECT mapping. We are | |
578 * not emulating anything. Just mapping. | |
579 */ | |
580 #define FreeLibrary(x) DosFreeModule((HMODULE)x) | |
581 #define OutputDebugString(x) | |
582 | |
583 extern int _MD_os2_get_nonblocking_connect_error(int osfd); | |
584 | |
585 #endif /* nspr_os2_defs_h___ */ | |
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