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/*
36** This is the OpenVMS machine dependant configuration file. It is based
37** on the OSF/1 machine dependant file.
38*/
39
40#ifndef nspr_openvms_defs_h___
41#define nspr_openvms_defs_h___
42
43/*
44 * Internal configuration macros
45 */
46
47#define PR_LINKER_ARCH	"OpenVMS"
48#define _PR_SI_SYSNAME	"OpenVMS"
49#ifdef __alpha
50#define _PR_SI_ARCHITECTURE "alpha"
51#else
52#define _PR_SI_ARCHITECTURE "vax"
53#endif
54#define PR_DLL_SUFFIX		".so"
55
56#define _PR_VMBASE		0x30000000
57#define _PR_STACK_VMBASE	0x50000000
58#define _MD_DEFAULT_STACK_SIZE	131072L
59#define _MD_MINIMUM_STACK_SIZE	131072L
60
61/*
62** This is not defined on OpenVMS. I believe its only used in GC code, and
63** isn't that only used in Java? Anyway, for now, let's keep the compiler
64** happy.
65*/
66#define SA_RESTART 0
67
68/*
69** OpenVMS doesn't have these in socket.h.
70** Does in later versions!
71*/
72#if 0
73struct ip_mreq {
74    struct in_addr  imr_multiaddr;      /* IP multicast address of group */
75    struct in_addr  imr_interface;      /* local IP address of interface */
76};
77#endif
78
79/*
80 * OSF1 needs the MAP_FIXED flag to ensure that mmap returns a pointer
81 * with the upper 32 bits zero.  This is because Java sticks a pointer
82 * into an int.
83 */
84#define _MD_MMAP_FLAGS          MAP_PRIVATE|MAP_FIXED
85
86#undef  HAVE_STACK_GROWING_UP
87#undef 	HAVE_WEAK_IO_SYMBOLS
88#undef 	HAVE_WEAK_MALLOC_SYMBOLS
89#undef  HAVE_BSD_FLOCK
90
91#define NEED_TIME_R
92
93#define HAVE_DLL
94#define USE_DLFCN
95
96#define _PR_POLL_AVAILABLE
97#define _PR_USE_POLL
98#define _PR_STAT_HAS_ONLY_ST_ATIME
99#define _PR_NO_LARGE_FILES
100#define _PR_STRICT_ADDR_LEN
101
102/* IPv6 support */
103#ifdef _SOCKADDR_LEN
104#define _PR_HAVE_SOCKADDR_LEN
105#endif
106#define _PR_HAVE_GETIPNODEBYNAME
107#define _PR_HAVE_GETIPNODEBYADDR
108#define _PR_HAVE_GETADDRINFO
109#define _PR_INET6_PROBE
110#ifdef _PR_INET6
111#define _PR_HAVE_INET_NTOP
112#else
113#define AF_INET6 26
114#ifndef AI_CANONNAME
115#define AI_CANONNAME 0x00000002
116struct addrinfo {
117    int ai_flags;
118    int ai_family;
119    int ai_socktype;
120    int ai_protocol;
121    size_t ai_addrlen;
122    char *ai_canonname;
123    struct sockaddr *ai_addr;
124    struct addrinfo *ai_next;
125};
126#endif
127#define AI_V4MAPPED 0x00000010
128#define AI_ALL      0x00000008
129#define AI_ADDRCONFIG 0x00000020
130#endif
131
132#define _PR_HAVE_MD_SOCKADDR_IN6
133/* if we have a quadword field defined in the structure, then its length */
134/* will be a multiple of 8, and connect() won't accept 32 (it wants 28) */
135struct _md_in6_addr {
136    union {
137        PRUint8  _S6_u8[16];
138        PRUint16 _S6_u16[8];
139        PRUint32 _S6_u32[4];
140    } _S6_un;
141};
142struct _md_sockaddr_in6 {
143    PRUint16 sin6_family;
144    PRUint16 sin6_port;
145    PRUint32 sin6_flowinfo;
146    struct _md_in6_addr sin6_addr;
147    PRUint32 sin6_scope_id;
148};
149
150#undef  USE_SETJMP
151
152#include <setjmp.h>
153
154/*
155 * A jmp_buf is actually a struct sigcontext.  The sc_sp field of
156 * struct sigcontext is the stack pointer.
157 */
158#define _MD_GET_SP(_t) (((struct sigcontext *) (_t)->md.context)->sc_sp)
159#define PR_NUM_GCREGS _JBLEN
160#define CONTEXT(_th) ((_th)->md.context)
161
162/*
163** I am ifdef'ing these out because that's the way they are in FT.
164*/
165#ifndef __VMS
166
167/*
168** Initialize a thread context to run "_main()" when started
169*/
170#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)	      \
171{									  \
172        *status = PR_TRUE;              \
173    if (setjmp(CONTEXT(_thread))) {				\
174	(*_main)();						\
175    }								\
176    _MD_GET_SP(_thread) = (long) ((_sp) - 64);			\
177    _MD_GET_SP(_thread) &= ~15;					\
178}
179
180#define _MD_SWITCH_CONTEXT(_thread)  \
181    if (!setjmp(CONTEXT(_thread))) { \
182	(_thread)->md.errcode = errno;  \
183	_PR_Schedule();		     \
184    }
185
186/*
187** Restore a thread context, saved by _MD_SWITCH_CONTEXT
188*/
189#define _MD_RESTORE_CONTEXT(_thread) \
190{				     \
191    errno = (_thread)->md.errcode;     \
192    _MD_SET_CURRENT_THREAD(_thread);	\
193    longjmp(CONTEXT(_thread), 1);    \
194}
195
196#endif /* __VMS */
197
198/* Machine-dependent (MD) data structures */
199
200struct _MDThread {
201    jmp_buf context;
202    int id;
203    int errcode;
204};
205
206struct _MDThreadStack {
207    PRInt8 notused;
208};
209
210struct _MDLock {
211    PRInt8 notused;
212};
213
214struct _MDSemaphore {
215    PRInt8 notused;
216};
217
218struct _MDCVar {
219    PRInt8 notused;
220};
221
222struct _MDSegment {
223    PRInt8 notused;
224};
225
226/*
227 * md-specific cpu structure field
228 */
229#define _PR_MD_MAX_OSFD FD_SETSIZE
230
231struct _MDCPU_Unix {
232    PRCList ioQ;
233    PRUint32 ioq_timeout;
234    PRInt32 ioq_max_osfd;
235    PRInt32 ioq_osfd_cnt;
236#ifndef _PR_USE_POLL
237    fd_set fd_read_set, fd_write_set, fd_exception_set;
238    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
239                              fd_exception_cnt[_PR_MD_MAX_OSFD];
240#else
241      struct pollfd *ioq_pollfds;
242      int ioq_pollfds_size;
243#endif        /* _PR_USE_POLL */
244};
245
246#define _PR_IOQ(_cpu)                 ((_cpu)->md.md_unix.ioQ)
247#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
248#define _PR_FD_READ_SET(_cpu)         ((_cpu)->md.md_unix.fd_read_set)
249#define _PR_FD_READ_CNT(_cpu)         ((_cpu)->md.md_unix.fd_read_cnt)
250#define _PR_FD_WRITE_SET(_cpu)                ((_cpu)->md.md_unix.fd_write_set)
251#define _PR_FD_WRITE_CNT(_cpu)                ((_cpu)->md.md_unix.fd_write_cnt)
252#define _PR_FD_EXCEPTION_SET(_cpu)    ((_cpu)->md.md_unix.fd_exception_set)
253#define _PR_FD_EXCEPTION_CNT(_cpu)    ((_cpu)->md.md_unix.fd_exception_cnt)
254#define _PR_IOQ_TIMEOUT(_cpu)         ((_cpu)->md.md_unix.ioq_timeout)
255#define _PR_IOQ_MAX_OSFD(_cpu)                ((_cpu)->md.md_unix.ioq_max_osfd)
256#define _PR_IOQ_OSFD_CNT(_cpu)                ((_cpu)->md.md_unix.ioq_osfd_cnt)
257#define _PR_IOQ_POLLFDS(_cpu)         ((_cpu)->md.md_unix.ioq_pollfds)
258#define _PR_IOQ_POLLFDS_SIZE(_cpu)    ((_cpu)->md.md_unix.ioq_pollfds_size)
259
260#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)        32
261
262struct _MDCPU {
263	struct _MDCPU_Unix md_unix;
264};
265
266#ifndef _PR_PTHREADS
267#define _MD_INIT_LOCKS()
268#endif
269#define _MD_NEW_LOCK(lock) PR_SUCCESS
270#define _MD_FREE_LOCK(lock)
271#define _MD_LOCK(lock)
272#define _MD_UNLOCK(lock)
273#define _MD_INIT_IO()
274#define _MD_IOQ_LOCK()
275#define _MD_IOQ_UNLOCK()
276
277/*
278 * The following are copied from _sunos.h, _aix.h.  This means
279 * some of them should probably be moved into _unixos.h.  But
280 * _irix.h seems to be quite different in regard to these macros.
281 */
282#define _MD_GET_INTERVAL                  _PR_UNIX_GetInterval
283extern PRIntervalTime _PR_UNIX_GetInterval(void);
284#define _MD_INTERVAL_PER_SEC              _PR_UNIX_TicksPerSecond
285extern PRIntervalTime _PR_UNIX_TicksPerSecond(void);
286
287#define _MD_EARLY_INIT		_MD_EarlyInit
288void _MD_EarlyInit(void);
289#define _MD_FINAL_INIT		_PR_UnixInit
290#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
291#define _MD_INIT_THREAD         _MD_InitializeThread
292#ifdef _VMS_NOT_YET
293NSPR_API(void) _PR_InitThreads(
294  PRThreadType type, PRThreadPriority priority, PRUintn maxPTDs);
295#endif
296#define _MD_EXIT_THREAD(thread)
297#define	_MD_SUSPEND_THREAD(thread)
298#define	_MD_RESUME_THREAD(thread)
299#define _MD_CLEAN_THREAD(_thread)
300
301/* The following defines unwrapped versions of select() and poll(). */
302extern int __select (int, fd_set *, fd_set *, fd_set *, struct timeval *);
303#define _MD_SELECT              __select
304
305#ifndef __VMS
306#define _MD_POLL __poll
307extern int __poll(struct pollfd filedes[], unsigned int nfds, int timeout);
308#endif
309
310#ifdef __VMS
311NSPR_API(void) _PR_InitCPUs(void);
312NSPR_API(void) _PR_MD_START_INTERRUPTS(void);
313#endif
314
315/*
316 * Atomic operations
317 */
318#include <machine/builtins.h>
319#define _PR_HAVE_ATOMIC_OPS
320#define _MD_INIT_ATOMIC()
321#define _MD_ATOMIC_ADD(ptr,val) (__ATOMIC_ADD_LONG(ptr,val) + val)
322#define _MD_ATOMIC_INCREMENT(val) (__ATOMIC_INCREMENT_LONG(val) + 1)
323#define _MD_ATOMIC_DECREMENT(val) (__ATOMIC_DECREMENT_LONG(val) - 1)
324#define _MD_ATOMIC_SET(val, newval) __ATOMIC_EXCH_LONG(val, newval)
325
326extern int thread_suspend(PRThread *thr_id);
327extern int thread_resume(PRThread *thr_id);
328
329#endif /* nspr_openvms_defs_h___ */
330