_os2.h@ 51036

Last change on this file since 51036 was 4634, checked in by vboxsync, 18 years ago
Don't use TCPV40HDRS.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 21.6 KB

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1	/* -- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -- */
2	/* *** BEGIN LICENSE BLOCK ***
3	* Version: MPL 1.1/GPL 2.0/LGPL 2.1
4	*
5	* The contents of this file are subject to the Mozilla Public License Version
6	* 1.1 (the "License"); you may not use this file except in compliance with
7	* the License. You may obtain a copy of the License at
8	* http://www.mozilla.org/MPL/
9	*
10	* Software distributed under the License is distributed on an "AS IS" basis,
11	* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12	* for the specific language governing rights and limitations under the
13	* License.
14	*
15	* The Original Code is the Netscape Portable Runtime (NSPR).
16	*
17	* The Initial Developer of the Original Code is
18	* Netscape Communications Corporation.
19	* Portions created by the Initial Developer are Copyright (C) 1998-2000
20	* the Initial Developer. All Rights Reserved.
21	*
22	* Contributor(s):
23	*
24	* Alternatively, the contents of this file may be used under the terms of
25	* either the GNU General Public License Version 2 or later (the "GPL"), or
26	* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
27	* in which case the provisions of the GPL or the LGPL are applicable instead
28	* of those above. If you wish to allow use of your version of this file only
29	* under the terms of either the GPL or the LGPL, and not to allow others to
30	* use your version of this file under the terms of the MPL, indicate your
31	* decision by deleting the provisions above and replace them with the notice
32	* and other provisions required by the GPL or the LGPL. If you do not delete
33	* the provisions above, a recipient may use your version of this file under
34	* the terms of any one of the MPL, the GPL or the LGPL.
35	*
36	* *** END LICENSE BLOCK *** */
37
38	#ifndef nspr_os2_defs_h___
39	#define nspr_os2_defs_h___
40
41	#define INCL_DOS
42	#define INCL_DOSPROCESS
43	#define INCL_DOSERRORS
44	#define INCL_WIN
45	#define INCL_WPS
46	#include <os2.h>
47	#include <sys/select.h>
48
49	#include "prio.h"
50
51	#include <errno.h>
52
53	#ifdef XP_OS2_VACPP
54	/* TODO RAMSEMs need to be written for GCC/EMX */
55	#define USE_RAMSEM
56	#endif
57
58	#ifdef USE_RAMSEM
59	#pragma pack(4)
60
61	#pragma pack(2)
62	typedef struct _RAMSEM
63	{
64	ULONG ulTIDPID;
65	ULONG hevSem;
66	ULONG cLocks;
67	USHORT cWaiting;
68	USHORT cPosts;
69	} RAMSEM, *PRAMSEM;
70
71	typedef struct _CRITICAL_SECTION
72	{
73	ULONG ulReserved[4]; /* Same size as RAMSEM */
74	} CRITICAL_SECTION, PCRITICAL_SECTION, LPCRITICAL_SECTION;
75	#pragma pack(4)
76
77	APIRET _Optlink SemRequest486(PRAMSEM, ULONG);
78	APIRET _Optlink SemReleasex86(PRAMSEM, ULONG);
79	#endif
80
81	/*
82	* Internal configuration macros
83	*/
84
85	#define PR_LINKER_ARCH "os2"
86	#define _PR_SI_SYSNAME "OS2"
87	#define _PR_SI_ARCHITECTURE "x86" /* XXXMB hardcode for now */
88
89	#define HAVE_DLL
90	#define _PR_GLOBAL_THREADS_ONLY
91	#undef HAVE_THREAD_AFFINITY
92	#define _PR_HAVE_THREADSAFE_GETHOST
93	#define _PR_HAVE_ATOMIC_OPS
94	#ifndef TCPV40HDRS /* bird */
95	#define _PR_HAVE_SOCKADDR_LEN /* bird */
96	#endif /* bird */
97
98	#define HANDLE unsigned long
99	#define HINSTANCE HMODULE
100
101	/* --- Common User-Thread/Native-Thread Definitions --------------------- */
102
103	/* --- Globals --- */
104	extern struct PRLock *_pr_schedLock;
105
106	/* --- Typedefs --- */
107	typedef void (FiberFunc)(void );
108
109	#define PR_NUM_GCREGS 8
110	typedef PRInt32 PR_CONTEXT_TYPE[PR_NUM_GCREGS];
111	#define GC_VMBASE 0x40000000
112	#define GC_VMLIMIT 0x00FFFFFF
113	typedef int (*FARPROC)();
114
115	#define _MD_MAGIC_THREAD 0x22222222
116	#define _MD_MAGIC_THREADSTACK 0x33333333
117	#define _MD_MAGIC_SEGMENT 0x44444444
118	#define _MD_MAGIC_DIR 0x55555555
119	#define _MD_MAGIC_CV 0x66666666
120
121	struct _MDSemaphore {
122	HEV sem;
123	};
124
125	struct _MDCPU {
126	int unused;
127	};
128
129	struct _MDThread {
130	HEV blocked_sema; /* Threads block on this when waiting
131	* for IO or CondVar.
132	*/
133	PRBool inCVWaitQueue; /* PR_TRUE if the thread is in the
134	* wait queue of some cond var.
135	* PR_FALSE otherwise. */
136	TID handle; /* OS/2 thread handle */
137	void sp; / only valid when suspended */
138	PRUint32 magic; /* for debugging */
139	PR_CONTEXT_TYPE gcContext; /* Thread context for GC */
140	struct PRThread prev, next; /* used by the cvar wait queue to
141	* chain the PRThread structures
142	* together */
143	};
144
145	struct _MDThreadStack {
146	PRUint32 magic; /* for debugging */
147	};
148
149	struct _MDSegment {
150	PRUint32 magic; /* for debugging */
151	};
152
153	#undef PROFILE_LOCKS
154
155	struct _MDDir {
156	HDIR d_hdl;
157	FILEFINDBUF3 d_entry;
158	PRBool firstEntry; /* Is this the entry returned
159	* by FindFirstFile()? */
160	PRUint32 magic; /* for debugging */
161	};
162
163	struct _MDCVar {
164	PRUint32 magic;
165	struct PRThread waitHead, waitTail; /* the wait queue: a doubly-
166	* linked list of threads
167	* waiting on this condition
168	* variable */
169	PRIntn nwait; /* number of threads in the
170	* wait queue */
171	};
172
173	#define _MD_CV_NOTIFIED_LENGTH 6
174	typedef struct _MDNotified _MDNotified;
175	struct _MDNotified {
176	PRIntn length; /* # of used entries in this
177	* structure */
178	struct {
179	struct _MDCVar cv; / the condition variable notified */
180	PRIntn times; /* and the number of times notified */
181	struct PRThread notifyHead; / list of threads to wake up */
182	} cv[_MD_CV_NOTIFIED_LENGTH];
183	_MDNotified link; / link to another of these, or NULL */
184	};
185
186	struct _MDLock {
187	#ifdef USE_RAMSEM
188	CRITICAL_SECTION mutex; /* this is recursive on NT */
189	#else
190	HMTX mutex; /* this is recursive on NT */
191	#endif
192
193	/*
194	* When notifying cvars, there is no point in actually
195	* waking up the threads waiting on the cvars until we've
196	* released the lock. So, we temporarily record the cvars.
197	* When doing an unlock, we'll then wake up the waiting threads.
198	*/
199	struct _MDNotified notified; /* array of conditions notified */
200	#ifdef PROFILE_LOCKS
201	PRInt32 hitcount;
202	PRInt32 misscount;
203	#endif
204	};
205
206	struct _MDFileDesc {
207	PRInt32 osfd; /* The osfd can come from one of three spaces:
208	* - For stdin, stdout, and stderr, we are using
209	* the libc file handle (0, 1, 2), which is an int.
210	* - For files and pipes, we are using OS/2 handles,
211	* which is a void*.
212	* - For sockets, we are using int
213	*/
214	};
215
216	struct _MDProcess {
217	PID pid;
218	};
219
220	/* --- Misc stuff --- */
221	#define _MD_GET_SP(thread) (thread)->md.gcContext[6]
222
223	/* --- IO stuff --- */
224
225	#define _MD_OPEN (_PR_MD_OPEN)
226	#define _MD_OPEN_FILE (_PR_MD_OPEN)
227	#define _MD_READ (_PR_MD_READ)
228	#define _MD_WRITE (_PR_MD_WRITE)
229	#define _MD_WRITEV (_PR_MD_WRITEV)
230	#define _MD_LSEEK (_PR_MD_LSEEK)
231	#define _MD_LSEEK64 (_PR_MD_LSEEK64)
232	extern PRInt32 _MD_CloseFile(PRInt32 osfd);
233	#define _MD_CLOSE_FILE _MD_CloseFile
234	#define _MD_GETFILEINFO (_PR_MD_GETFILEINFO)
235	#define _MD_GETFILEINFO64 (_PR_MD_GETFILEINFO64)
236	#define _MD_GETOPENFILEINFO (_PR_MD_GETOPENFILEINFO)
237	#define _MD_GETOPENFILEINFO64 (_PR_MD_GETOPENFILEINFO64)
238	#define _MD_STAT (_PR_MD_STAT)
239	#define _MD_RENAME (_PR_MD_RENAME)
240	#define _MD_ACCESS (_PR_MD_ACCESS)
241	#define _MD_DELETE (_PR_MD_DELETE)
242	#define _MD_MKDIR (_PR_MD_MKDIR)
243	#define _MD_MAKE_DIR (_PR_MD_MKDIR)
244	#define _MD_RMDIR (_PR_MD_RMDIR)
245	#define _MD_LOCKFILE (_PR_MD_LOCKFILE)
246	#define _MD_TLOCKFILE (_PR_MD_TLOCKFILE)
247	#define _MD_UNLOCKFILE (_PR_MD_UNLOCKFILE)
248
249	/* --- Socket IO stuff --- */
250
251	/* The ones that don't map directly may need to be re-visited... */
252	#ifdef XP_OS2_VACPP
253	#define EPIPE EBADF
254	#define EIO ECONNREFUSED
255	#endif
256	#define _MD_EACCES EACCES
257	#define _MD_EADDRINUSE EADDRINUSE
258	#define _MD_EADDRNOTAVAIL EADDRNOTAVAIL
259	#define _MD_EAFNOSUPPORT EAFNOSUPPORT
260	#define _MD_EAGAIN EWOULDBLOCK
261	#define _MD_EALREADY EALREADY
262	#define _MD_EBADF EBADF
263	#define _MD_ECONNREFUSED ECONNREFUSED
264	#define _MD_ECONNRESET ECONNRESET
265	#define _MD_EFAULT SOCEFAULT
266	#define _MD_EINPROGRESS EINPROGRESS
267	#define _MD_EINTR EINTR
268	#define _MD_EINVAL EINVAL
269	#define _MD_EISCONN EISCONN
270	#define _MD_ENETUNREACH ENETUNREACH
271	#define _MD_ENOENT ENOENT
272	#define _MD_ENOTCONN ENOTCONN
273	#define _MD_ENOTSOCK ENOTSOCK
274	#define _MD_EOPNOTSUPP EOPNOTSUPP
275	#define _MD_EWOULDBLOCK EWOULDBLOCK
276	#define _MD_GET_SOCKET_ERROR() sock_errno()
277	#ifndef INADDR_LOOPBACK /* For some reason this is not defined in OS2 tcpip */
278	/* #define INADDR_LOOPBACK INADDR_ANY */
279	#endif
280
281	#define _MD_INIT_FILEDESC(fd)
282	extern void _MD_MakeNonblock(PRFileDesc *f);
283	#define _MD_MAKE_NONBLOCK _MD_MakeNonblock
284	#define _MD_INIT_FD_INHERITABLE (_PR_MD_INIT_FD_INHERITABLE)
285	#define _MD_QUERY_FD_INHERITABLE (_PR_MD_QUERY_FD_INHERITABLE)
286	#define _MD_SHUTDOWN (_PR_MD_SHUTDOWN)
287	#define _MD_LISTEN _PR_MD_LISTEN
288	extern PRInt32 _MD_CloseSocket(PRInt32 osfd);
289	#define _MD_CLOSE_SOCKET _MD_CloseSocket
290	#define _MD_SENDTO (_PR_MD_SENDTO)
291	#define _MD_RECVFROM (_PR_MD_RECVFROM)
292	#ifdef XP_OS2_VACPP
293	#define _MD_SOCKETPAIR(s, type, proto, sv) -1
294	#else
295	#define _MD_SOCKETPAIR (_PR_MD_SOCKETPAIR)
296	#endif
297	#define _MD_GETSOCKNAME (_PR_MD_GETSOCKNAME)
298	#define _MD_GETPEERNAME (_PR_MD_GETPEERNAME)
299	#define _MD_GETSOCKOPT (_PR_MD_GETSOCKOPT)
300	#define _MD_SETSOCKOPT (_PR_MD_SETSOCKOPT)
301
302	#define _MD_FSYNC _PR_MD_FSYNC
303	#define _MD_SET_FD_INHERITABLE (_PR_MD_SET_FD_INHERITABLE)
304
305	#ifdef _PR_HAVE_ATOMIC_OPS
306	#define _MD_INIT_ATOMIC()
307	#define _MD_ATOMIC_INCREMENT _PR_MD_ATOMIC_INCREMENT
308	#define _MD_ATOMIC_ADD _PR_MD_ATOMIC_ADD
309	#define _MD_ATOMIC_DECREMENT _PR_MD_ATOMIC_DECREMENT
310	#define _MD_ATOMIC_SET _PR_MD_ATOMIC_SET
311	#endif
312
313	#define _MD_INIT_IO (_PR_MD_INIT_IO)
314	#define _MD_PR_POLL (_PR_MD_PR_POLL)
315
316	#define _MD_SOCKET (_PR_MD_SOCKET)
317	extern PRInt32 _MD_SocketAvailable(PRFileDesc *fd);
318	#define _MD_SOCKETAVAILABLE _MD_SocketAvailable
319	#define _MD_PIPEAVAILABLE _MD_SocketAvailable
320	#define _MD_CONNECT (_PR_MD_CONNECT)
321	extern PRInt32 _MD_Accept(PRFileDesc fd, PRNetAddr raddr, PRUint32 *rlen,
322	PRIntervalTime timeout);
323	#define _MD_ACCEPT _MD_Accept
324	#define _MD_BIND (_PR_MD_BIND)
325	#define _MD_RECV (_PR_MD_RECV)
326	#define _MD_SEND (_PR_MD_SEND)
327
328	/* --- Scheduler stuff --- */
329	/* #define _MD_PAUSE_CPU _PR_MD_PAUSE_CPU */
330	#define _MD_PAUSE_CPU
331
332	/* --- DIR stuff --- */
333	#define PR_DIRECTORY_SEPARATOR '\\'
334	#define PR_DIRECTORY_SEPARATOR_STR "\\"
335	#define PR_PATH_SEPARATOR ';'
336	#define PR_PATH_SEPARATOR_STR ";"
337	#define _MD_ERRNO() errno
338	#define _MD_OPEN_DIR (_PR_MD_OPEN_DIR)
339	#define _MD_CLOSE_DIR (_PR_MD_CLOSE_DIR)
340	#define _MD_READ_DIR (_PR_MD_READ_DIR)
341
342	/* --- Segment stuff --- */
343	#define _MD_INIT_SEGS()
344	#define _MD_ALLOC_SEGMENT(seg, size, vaddr) 0
345	#define _MD_FREE_SEGMENT(seg)
346
347	/* --- Environment Stuff --- */
348	#define _MD_GET_ENV (_PR_MD_GET_ENV)
349	#define _MD_PUT_ENV (_PR_MD_PUT_ENV)
350
351	/* --- Threading Stuff --- */
352	#define _MD_DEFAULT_STACK_SIZE 65536L
353	#define _MD_INIT_THREAD (_PR_MD_INIT_THREAD)
354	#define _MD_INIT_ATTACHED_THREAD (_PR_MD_INIT_THREAD)
355	#define _MD_CREATE_THREAD (_PR_MD_CREATE_THREAD)
356	#define _MD_YIELD (_PR_MD_YIELD)
357	#define _MD_SET_PRIORITY (_PR_MD_SET_PRIORITY)
358	#define _MD_CLEAN_THREAD (_PR_MD_CLEAN_THREAD)
359	#define _MD_SETTHREADAFFINITYMASK (_PR_MD_SETTHREADAFFINITYMASK)
360	#define _MD_GETTHREADAFFINITYMASK (_PR_MD_GETTHREADAFFINITYMASK)
361	#define _MD_EXIT_THREAD (_PR_MD_EXIT_THREAD)
362	#define _MD_SUSPEND_THREAD (_PR_MD_SUSPEND_THREAD)
363	#define _MD_RESUME_THREAD (_PR_MD_RESUME_THREAD)
364	#define _MD_SUSPEND_CPU (_PR_MD_SUSPEND_CPU)
365	#define _MD_RESUME_CPU (_PR_MD_RESUME_CPU)
366	#define _MD_WAKEUP_CPUS (_PR_MD_WAKEUP_CPUS)
367	#define _MD_BEGIN_SUSPEND_ALL()
368	#define _MD_BEGIN_RESUME_ALL()
369	#define _MD_END_SUSPEND_ALL()
370	#define _MD_END_RESUME_ALL()
371
372	/* --- Lock stuff --- */
373	#define _PR_LOCK _MD_LOCK
374	#define _PR_UNLOCK _MD_UNLOCK
375	extern void
376	md_UnlockAndPostNotifies(struct _MDLock lock, PRThread waitThred, struct _MDCVar *waitCV);
377	#ifdef USE_RAMSEM
378	#define _MD_NEW_LOCK (_PR_MD_NEW_LOCK)
379	#define _MD_FREE_LOCK(lock) (DosCloseEventSem(((PRAMSEM)(&((lock)->mutex)))->hevSem))
380	#define _MD_LOCK(lock) (SemRequest486(&((lock)->mutex), -1))
381	#define _MD_TEST_AND_LOCK(lock) (SemRequest486(&((lock)->mutex), -1),0)
382	#define _MD_UNLOCK(lock) \
383	PR_BEGIN_MACRO \
384	if (0 != (lock)->notified.length) { \
385	md_UnlockAndPostNotifies((lock), NULL, NULL); \
386	} else { \
387	SemReleasex86( &(lock)->mutex, 0 ); \
388	} \
389	PR_END_MACRO
390	#else
391	#define _MD_NEW_LOCK (_PR_MD_NEW_LOCK)
392	#define _MD_FREE_LOCK(lock) (DosCloseMutexSem((lock)->mutex))
393	#define _MD_LOCK(lock) (DosRequestMutexSem((lock)->mutex, SEM_INDEFINITE_WAIT))
394	#define _MD_TEST_AND_LOCK(lock) (DosRequestMutexSem((lock)->mutex, SEM_INDEFINITE_WAIT),0)
395	#define _MD_UNLOCK(lock) \
396	PR_BEGIN_MACRO \
397	if (0 != (lock)->notified.length) { \
398	md_UnlockAndPostNotifies((lock), NULL, NULL); \
399	} else { \
400	DosReleaseMutexSem((lock)->mutex); \
401	} \
402	PR_END_MACRO
403	#endif
404
405	/* --- lock and cv waiting --- */
406	#define _MD_WAIT (_PR_MD_WAIT)
407	#define _MD_WAKEUP_WAITER (_PR_MD_WAKEUP_WAITER)
408
409	/* --- CVar ------------------- */
410	#define _MD_WAIT_CV (_PR_MD_WAIT_CV)
411	#define _MD_NEW_CV (_PR_MD_NEW_CV)
412	#define _MD_FREE_CV (_PR_MD_FREE_CV)
413	#define _MD_NOTIFY_CV (_PR_MD_NOTIFY_CV )
414	#define _MD_NOTIFYALL_CV (_PR_MD_NOTIFYALL_CV)
415
416	/* XXXMB- the IOQ stuff is certainly not working correctly yet. */
417	/* extern struct _MDLock _pr_ioq_lock; */
418	#define _MD_IOQ_LOCK()
419	#define _MD_IOQ_UNLOCK()
420
421
422	/* --- Initialization stuff --- */
423	#define _MD_START_INTERRUPTS()
424	#define _MD_STOP_INTERRUPTS()
425	#define _MD_DISABLE_CLOCK_INTERRUPTS()
426	#define _MD_ENABLE_CLOCK_INTERRUPTS()
427	#define _MD_BLOCK_CLOCK_INTERRUPTS()
428	#define _MD_UNBLOCK_CLOCK_INTERRUPTS()
429	#define _MD_EARLY_INIT (_PR_MD_EARLY_INIT)
430	#define _MD_FINAL_INIT()
431	#define _MD_INIT_CPUS()
432	#define _MD_INIT_RUNNING_CPU(cpu)
433
434	struct PRProcess;
435	struct PRProcessAttr;
436
437	extern struct PRProcess * _PR_CreateOS2ProcessEx(
438	const char *path,
439	char const argv,
440	char const envp,
441	const struct PRProcessAttr *attr,
442	PRBool detached
443	);
444
445	#define _MD_CREATE_PROCESS _PR_CreateOS2Process
446	extern struct PRProcess * _PR_CreateOS2Process(
447	const char *path,
448	char const argv,
449	char const envp,
450	const struct PRProcessAttr *attr
451	);
452
453	#define _MD_DETACH_PROCESS _PR_DetachOS2Process
454	extern PRStatus _PR_DetachOS2Process(struct PRProcess *process);
455
456	/* --- Wait for a child process to terminate --- */
457	#define _MD_WAIT_PROCESS _PR_WaitOS2Process
458	extern PRStatus _PR_WaitOS2Process(struct PRProcess *process,
459	PRInt32 *exitCode);
460
461	#define _MD_KILL_PROCESS _PR_KillOS2Process
462	extern PRStatus _PR_KillOS2Process(struct PRProcess *process);
463
464	#define _MD_CLEANUP_BEFORE_EXIT()
465	#define _MD_EXIT (_PR_MD_EXIT)
466	#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
467	PR_BEGIN_MACRO \
468	*status = PR_TRUE; \
469	PR_END_MACRO
470	#define _MD_SWITCH_CONTEXT
471	#define _MD_RESTORE_CONTEXT
472
473	/* --- Intervals --- */
474	#define _MD_INTERVAL_INIT (_PR_MD_INTERVAL_INIT)
475	#define _MD_GET_INTERVAL (_PR_MD_GET_INTERVAL)
476	#define _MD_INTERVAL_PER_SEC (_PR_MD_INTERVAL_PER_SEC)
477	#define _MD_INTERVAL_PER_MILLISEC() (_PR_MD_INTERVAL_PER_SEC() / 1000)
478	#define _MD_INTERVAL_PER_MICROSEC() (_PR_MD_INTERVAL_PER_SEC() / 1000000)
479
480	/* --- Native-Thread Specific Definitions ------------------------------- */
481
482	typedef struct __NSPR_TLS
483	{
484	struct PRThread *_pr_thread_last_run;
485	struct PRThread *_pr_currentThread;
486	struct _PRCPU *_pr_currentCPU;
487	} _NSPR_TLS;
488
489	extern _NSPR_TLS* pThreadLocalStorage;
490	NSPR_API(void) _PR_MD_ENSURE_TLS(void);
491
492	#define _MD_GET_ATTACHED_THREAD() pThreadLocalStorage->_pr_currentThread
493	extern struct PRThread * _MD_CURRENT_THREAD(void);
494	#define _MD_SET_CURRENT_THREAD(_thread) _PR_MD_ENSURE_TLS(); pThreadLocalStorage->_pr_currentThread = (_thread)
495
496	#define _MD_LAST_THREAD() pThreadLocalStorage->_pr_thread_last_run
497	#define _MD_SET_LAST_THREAD(_thread) _PR_MD_ENSURE_TLS(); pThreadLocalStorage->_pr_thread_last_run = (_thread)
498
499	#define _MD_CURRENT_CPU() pThreadLocalStorage->_pr_currentCPU
500	#define _MD_SET_CURRENT_CPU(_cpu) _PR_MD_ENSURE_TLS(); pThreadLocalStorage->_pr_currentCPU = (_cpu)
501
502	/* lth. #define _MD_SET_INTSOFF(_val) (_pr_ints_off = (_val)) */
503	/* lth. #define _MD_GET_INTSOFF() _pr_ints_off */
504	/* lth. #define _MD_INCREMENT_INTSOFF() (_pr_ints_off++) */
505	/* lth. #define _MD_DECREMENT_INTSOFF() (_pr_ints_off--) */
506
507	/* --- Scheduler stuff --- */
508	#define LOCK_SCHEDULER() 0
509	#define UNLOCK_SCHEDULER() 0
510	#define _PR_LockSched() 0
511	#define _PR_UnlockSched() 0
512
513	/* --- Initialization stuff --- */
514	#define _MD_INIT_LOCKS()
515
516	/* --- Stack stuff --- */
517	#define _MD_INIT_STACK(stack, redzone)
518	#define _MD_CLEAR_STACK(stack)
519
520	/* --- Memory-mapped files stuff --- not implemented on OS/2 */
521
522	struct _MDFileMap {
523	PRInt8 unused;
524	};
525
526	extern PRStatus _MD_CreateFileMap(struct PRFileMap *fmap, PRInt64 size);
527	#define _MD_CREATE_FILE_MAP _MD_CreateFileMap
528
529	extern PRInt32 _MD_GetMemMapAlignment(void);
530	#define _MD_GET_MEM_MAP_ALIGNMENT _MD_GetMemMapAlignment
531
532	extern void * _MD_MemMap(struct PRFileMap *fmap, PRInt64 offset,
533	PRUint32 len);
534	#define _MD_MEM_MAP _MD_MemMap
535
536	extern PRStatus _MD_MemUnmap(void *addr, PRUint32 size);
537	#define _MD_MEM_UNMAP _MD_MemUnmap
538
539	extern PRStatus _MD_CloseFileMap(struct PRFileMap *fmap);
540	#define _MD_CLOSE_FILE_MAP _MD_CloseFileMap
541
542	/* Some stuff for setting up thread contexts */
543	typedef ULONG DWORD, *PDWORD;
544
545	/* The following definitions and two structures are new in OS/2 Warp 4.0.
546	*/
547	#ifndef CONTEXT_CONTROL
548	#define CONTEXT_CONTROL 0x00000001
549	#define CONTEXT_INTEGER 0x00000002
550	#define CONTEXT_SEGMENTS 0x00000004
551	#define CONTEXT_FLOATING_POINT 0x00000008
552	#define CONTEXT_FULL 0x0000000F
553
554	#pragma pack(2)
555	typedef struct _FPREG {
556	ULONG losig; /* Low 32-bits of the significand. */
557	ULONG hisig; /* High 32-bits of the significand. */
558	USHORT signexp; /* Sign and exponent. */
559	} FPREG;
560	typedef struct _CONTEXTRECORD {
561	ULONG ContextFlags;
562	ULONG ctx_env[7];
563	FPREG ctx_stack[8];
564	ULONG ctx_SegGs; /* GS register. */
565	ULONG ctx_SegFs; /* FS register. */
566	ULONG ctx_SegEs; /* ES register. */
567	ULONG ctx_SegDs; /* DS register. */
568	ULONG ctx_RegEdi; /* EDI register. */
569	ULONG ctx_RegEsi; /* ESI register. */
570	ULONG ctx_RegEax; /* EAX register. */
571	ULONG ctx_RegEbx; /* EBX register. */
572	ULONG ctx_RegEcx; /* ECX register. */
573	ULONG ctx_RegEdx; /* EDX register. */
574	ULONG ctx_RegEbp; /* EBP register. */
575	ULONG ctx_RegEip; /* EIP register. */
576	ULONG ctx_SegCs; /* CS register. */
577	ULONG ctx_EFlags; /* EFLAGS register. */
578	ULONG ctx_RegEsp; /* ESP register. */
579	ULONG ctx_SegSs; /* SS register. */
580	} CONTEXTRECORD, *PCONTEXTRECORD;
581	#pragma pack()
582	#endif
583
584	extern APIRET (* APIENTRY QueryThreadContext)(TID, ULONG, PCONTEXTRECORD);
585	unsigned long _System _DLL_InitTerm( unsigned long mod_handle, unsigned long flag);
586
587	/*
588	#define _pr_tid (((PTIB2)_getTIBvalue(offsetof(TIB, tib_ptib2)))->tib2_ultid)
589	#define _pr_current_Thread (_system_tls[_pr_tid-1].__pr_current_thread)
590	*/
591
592	/* Some simple mappings of Windows API's to OS/2 API's to make our lives a
593	* little bit easier. Only add one here if it is a DIRECT mapping. We are
594	* not emulating anything. Just mapping.
595	*/
596	#define FreeLibrary(x) DosFreeModule((HMODULE)x)
597	#define OutputDebugString(x)
598
599	extern int _MD_os2_get_nonblocking_connect_error(int osfd);
600
601	#endif /* nspr_os2_defs_h___ */

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source: vbox/trunk/src/libs/xpcom18a4/nsprpub/pr/include/md/_os2.h@ 51036

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