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_osf1_defs_h___
36#define nspr_osf1_defs_h___
37
38/*
39 * Internal configuration macros
40 */
41
42#define PR_LINKER_ARCH	"osf"
43#define _PR_SI_SYSNAME	"OSF"
44#define _PR_SI_ARCHITECTURE "alpha"
45#define PR_DLL_SUFFIX		".so"
46
47#define _PR_VMBASE              0x30000000
48#define _PR_STACK_VMBASE        0x50000000
49#define _MD_DEFAULT_STACK_SIZE  131072L
50#define _MD_MMAP_FLAGS          MAP_PRIVATE
51
52#undef  HAVE_STACK_GROWING_UP
53#undef 	HAVE_WEAK_IO_SYMBOLS
54#undef 	HAVE_WEAK_MALLOC_SYMBOLS
55#define HAVE_DLL
56#define HAVE_BSD_FLOCK
57
58#define NEED_TIME_R
59#define USE_DLFCN
60
61#define _PR_POLL_AVAILABLE
62#define _PR_USE_POLL
63#define _PR_STAT_HAS_ONLY_ST_ATIME
64#define _PR_HAVE_LARGE_OFF_T
65#define _PR_HAVE_GETIPNODEBYNAME
66#define _PR_HAVE_GETIPNODEBYADDR
67#define _PR_HAVE_GETADDRINFO
68#define _PR_INET6_PROBE
69#ifdef _PR_INET6
70#define _PR_HAVE_INET_NTOP
71#else
72#define AF_INET6 26
73#ifndef AI_CANONNAME
74#define AI_CANONNAME 0x00000002
75struct addrinfo {
76    int              ai_flags;
77    int              ai_family;
78    int              ai_socktype;
79    int              ai_protocol;
80    size_t           ai_addrlen;
81    char            *ai_canonname;
82    struct sockaddr *ai_addr;
83    struct addrinfo *ai_next;
84};
85#endif
86#define AI_V4MAPPED 0x00000010
87#define AI_ALL      0x00000008
88#define AI_ADDRCONFIG 0x00000020
89#endif
90#define _PR_HAVE_POSIX_SEMAPHORES
91#define PR_HAVE_POSIX_NAMED_SHARED_MEMORY
92
93#define USE_SETJMP
94
95#include <setjmp.h>
96
97/*
98 * A jmp_buf is actually a struct sigcontext.  The sc_sp field of
99 * struct sigcontext is the stack pointer.
100 */
101#define _MD_GET_SP(_t) (((struct sigcontext *) (_t)->md.context)->sc_sp)
102#define PR_NUM_GCREGS _JBLEN
103#define CONTEXT(_th) ((_th)->md.context)
104
105/*
106** Initialize a thread context to run "_main()" when started
107*/
108#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)	      \
109{									  \
110        *status = PR_TRUE;              \
111    if (setjmp(CONTEXT(_thread))) {				\
112	(*_main)();						\
113    }								\
114    _MD_GET_SP(_thread) = (long) ((_sp) - 64);			\
115    _MD_GET_SP(_thread) &= ~15;					\
116}
117
118#define _MD_SWITCH_CONTEXT(_thread)  \
119    if (!setjmp(CONTEXT(_thread))) { \
120	(_thread)->md.errcode = errno;  \
121	_PR_Schedule();		     \
122    }
123
124/*
125** Restore a thread context, saved by _MD_SWITCH_CONTEXT
126*/
127#define _MD_RESTORE_CONTEXT(_thread) \
128{				     \
129    errno = (_thread)->md.errcode;     \
130    _MD_SET_CURRENT_THREAD(_thread);	\
131    longjmp(CONTEXT(_thread), 1);    \
132}
133
134/* Machine-dependent (MD) data structures */
135
136struct _MDThread {
137    jmp_buf context;
138    int id;
139    int errcode;
140};
141
142struct _MDThreadStack {
143    PRInt8 notused;
144};
145
146struct _MDLock {
147    PRInt8 notused;
148};
149
150struct _MDSemaphore {
151    PRInt8 notused;
152};
153
154struct _MDCVar {
155    PRInt8 notused;
156};
157
158struct _MDSegment {
159    PRInt8 notused;
160};
161
162/*
163 * md-specific cpu structure field
164 */
165#define _PR_MD_MAX_OSFD FD_SETSIZE
166
167struct _MDCPU_Unix {
168    PRCList ioQ;
169    PRUint32 ioq_timeout;
170    PRInt32 ioq_max_osfd;
171    PRInt32 ioq_osfd_cnt;
172#ifndef _PR_USE_POLL
173    fd_set fd_read_set, fd_write_set, fd_exception_set;
174    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
175				fd_exception_cnt[_PR_MD_MAX_OSFD];
176#else
177	struct pollfd *ioq_pollfds;
178	int ioq_pollfds_size;
179#endif	/* _PR_USE_POLL */
180};
181
182#define _PR_IOQ(_cpu)			((_cpu)->md.md_unix.ioQ)
183#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
184#define _PR_FD_READ_SET(_cpu)		((_cpu)->md.md_unix.fd_read_set)
185#define _PR_FD_READ_CNT(_cpu)		((_cpu)->md.md_unix.fd_read_cnt)
186#define _PR_FD_WRITE_SET(_cpu)		((_cpu)->md.md_unix.fd_write_set)
187#define _PR_FD_WRITE_CNT(_cpu)		((_cpu)->md.md_unix.fd_write_cnt)
188#define _PR_FD_EXCEPTION_SET(_cpu)	((_cpu)->md.md_unix.fd_exception_set)
189#define _PR_FD_EXCEPTION_CNT(_cpu)	((_cpu)->md.md_unix.fd_exception_cnt)
190#define _PR_IOQ_TIMEOUT(_cpu)		((_cpu)->md.md_unix.ioq_timeout)
191#define _PR_IOQ_MAX_OSFD(_cpu)		((_cpu)->md.md_unix.ioq_max_osfd)
192#define _PR_IOQ_OSFD_CNT(_cpu)		((_cpu)->md.md_unix.ioq_osfd_cnt)
193#define _PR_IOQ_POLLFDS(_cpu)		((_cpu)->md.md_unix.ioq_pollfds)
194#define _PR_IOQ_POLLFDS_SIZE(_cpu)	((_cpu)->md.md_unix.ioq_pollfds_size)
195
196#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)	32
197
198struct _MDCPU {
199	struct _MDCPU_Unix md_unix;
200};
201
202#ifndef _PR_PTHREADS
203#define _MD_INIT_LOCKS()
204#endif
205#define _MD_NEW_LOCK(lock) PR_SUCCESS
206#define _MD_FREE_LOCK(lock)
207#define _MD_LOCK(lock)
208#define _MD_UNLOCK(lock)
209#define _MD_INIT_IO()
210#define _MD_IOQ_LOCK()
211#define _MD_IOQ_UNLOCK()
212
213/*
214 * The following are copied from _sunos.h, _aix.h.  This means
215 * some of them should probably be moved into _unixos.h.  But
216 * _irix.h seems to be quite different in regard to these macros.
217 */
218#define _MD_GET_INTERVAL                  _PR_UNIX_GetInterval
219#define _MD_INTERVAL_PER_SEC              _PR_UNIX_TicksPerSecond
220
221#define _MD_EARLY_INIT		_MD_EarlyInit
222#define _MD_FINAL_INIT		_PR_UnixInit
223#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
224#define _MD_INIT_THREAD         _MD_InitializeThread
225#define _MD_EXIT_THREAD(thread)
226#define	_MD_SUSPEND_THREAD(thread)
227#define	_MD_RESUME_THREAD(thread)
228#define _MD_CLEAN_THREAD(_thread)
229
230/* The following defines unwrapped versions of select() and poll(). */
231#include <sys/time.h>
232extern int __select (int, fd_set *, fd_set *, fd_set *, struct timeval *);
233#define _MD_SELECT              __select
234
235#include <sys/poll.h>
236#define _MD_POLL __poll
237extern int __poll(struct pollfd filedes[], unsigned int nfds, int timeout);
238
239/*
240 * Atomic operations
241 */
242#ifdef OSF1_HAVE_MACHINE_BUILTINS_H
243#include <machine/builtins.h>
244#define _PR_HAVE_ATOMIC_OPS
245#define _MD_INIT_ATOMIC()
246#define _MD_ATOMIC_INCREMENT(val) (__ATOMIC_INCREMENT_LONG(val) + 1)
247#define _MD_ATOMIC_ADD(ptr, val)  (__ATOMIC_ADD_LONG(ptr, val) + val)
248#define _MD_ATOMIC_DECREMENT(val) (__ATOMIC_DECREMENT_LONG(val) - 1)
249#define _MD_ATOMIC_SET(val, newval) __ATOMIC_EXCH_LONG(val, newval)
250#endif /* OSF1_HAVE_MACHINE_BUILTINS_H */
251
252#endif /* nspr_osf1_defs_h___ */
253