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source: vbox/trunk/src/libs/xpcom18a4/nsprpub/pr/include/md/_osf1.h@ 5300

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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_osf1_defs_h___
39#define nspr_osf1_defs_h___
40
41/*
42 * Internal configuration macros
43 */
44
45#define PR_LINKER_ARCH "osf"
46#define _PR_SI_SYSNAME "OSF"
47#define _PR_SI_ARCHITECTURE "alpha"
48#define PR_DLL_SUFFIX ".so"
49
50#define _PR_VMBASE 0x30000000
51#define _PR_STACK_VMBASE 0x50000000
52#define _MD_DEFAULT_STACK_SIZE 131072L
53#define _MD_MMAP_FLAGS MAP_PRIVATE
54
55#undef HAVE_STACK_GROWING_UP
56#undef HAVE_WEAK_IO_SYMBOLS
57#undef HAVE_WEAK_MALLOC_SYMBOLS
58#define HAVE_DLL
59#define HAVE_BSD_FLOCK
60
61#define NEED_TIME_R
62#define USE_DLFCN
63
64#define _PR_POLL_AVAILABLE
65#define _PR_USE_POLL
66#define _PR_STAT_HAS_ONLY_ST_ATIME
67#define _PR_HAVE_LARGE_OFF_T
68#define _PR_HAVE_GETIPNODEBYNAME
69#define _PR_HAVE_GETIPNODEBYADDR
70#define _PR_HAVE_GETADDRINFO
71#define _PR_INET6_PROBE
72#ifdef _PR_INET6
73#define _PR_HAVE_INET_NTOP
74#else
75#define AF_INET6 26
76#ifndef AI_CANONNAME
77#define AI_CANONNAME 0x00000002
78struct addrinfo {
79 int ai_flags;
80 int ai_family;
81 int ai_socktype;
82 int ai_protocol;
83 size_t ai_addrlen;
84 char *ai_canonname;
85 struct sockaddr *ai_addr;
86 struct addrinfo *ai_next;
87};
88#endif
89#define AI_V4MAPPED 0x00000010
90#define AI_ALL 0x00000008
91#define AI_ADDRCONFIG 0x00000020
92#endif
93#define _PR_HAVE_POSIX_SEMAPHORES
94#define PR_HAVE_POSIX_NAMED_SHARED_MEMORY
95
96#define USE_SETJMP
97
98#include <setjmp.h>
99
100/*
101 * A jmp_buf is actually a struct sigcontext. The sc_sp field of
102 * struct sigcontext is the stack pointer.
103 */
104#define _MD_GET_SP(_t) (((struct sigcontext *) (_t)->md.context)->sc_sp)
105#define PR_NUM_GCREGS _JBLEN
106#define CONTEXT(_th) ((_th)->md.context)
107
108/*
109** Initialize a thread context to run "_main()" when started
110*/
111#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
112{ \
113 *status = PR_TRUE; \
114 if (setjmp(CONTEXT(_thread))) { \
115 (*_main)(); \
116 } \
117 _MD_GET_SP(_thread) = (long) ((_sp) - 64); \
118 _MD_GET_SP(_thread) &= ~15; \
119}
120
121#define _MD_SWITCH_CONTEXT(_thread) \
122 if (!setjmp(CONTEXT(_thread))) { \
123 (_thread)->md.errcode = errno; \
124 _PR_Schedule(); \
125 }
126
127/*
128** Restore a thread context, saved by _MD_SWITCH_CONTEXT
129*/
130#define _MD_RESTORE_CONTEXT(_thread) \
131{ \
132 errno = (_thread)->md.errcode; \
133 _MD_SET_CURRENT_THREAD(_thread); \
134 longjmp(CONTEXT(_thread), 1); \
135}
136
137/* Machine-dependent (MD) data structures */
138
139struct _MDThread {
140 jmp_buf context;
141 int id;
142 int errcode;
143};
144
145struct _MDThreadStack {
146 PRInt8 notused;
147};
148
149struct _MDLock {
150 PRInt8 notused;
151};
152
153struct _MDSemaphore {
154 PRInt8 notused;
155};
156
157struct _MDCVar {
158 PRInt8 notused;
159};
160
161struct _MDSegment {
162 PRInt8 notused;
163};
164
165/*
166 * md-specific cpu structure field
167 */
168#define _PR_MD_MAX_OSFD FD_SETSIZE
169
170struct _MDCPU_Unix {
171 PRCList ioQ;
172 PRUint32 ioq_timeout;
173 PRInt32 ioq_max_osfd;
174 PRInt32 ioq_osfd_cnt;
175#ifndef _PR_USE_POLL
176 fd_set fd_read_set, fd_write_set, fd_exception_set;
177 PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
178 fd_exception_cnt[_PR_MD_MAX_OSFD];
179#else
180 struct pollfd *ioq_pollfds;
181 int ioq_pollfds_size;
182#endif /* _PR_USE_POLL */
183};
184
185#define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ)
186#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
187#define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set)
188#define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt)
189#define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set)
190#define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt)
191#define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set)
192#define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt)
193#define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout)
194#define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd)
195#define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt)
196#define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds)
197#define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size)
198
199#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32
200
201struct _MDCPU {
202 struct _MDCPU_Unix md_unix;
203};
204
205#ifndef _PR_PTHREADS
206#define _MD_INIT_LOCKS()
207#endif
208#define _MD_NEW_LOCK(lock) PR_SUCCESS
209#define _MD_FREE_LOCK(lock)
210#define _MD_LOCK(lock)
211#define _MD_UNLOCK(lock)
212#define _MD_INIT_IO()
213#define _MD_IOQ_LOCK()
214#define _MD_IOQ_UNLOCK()
215
216/*
217 * The following are copied from _sunos.h, _aix.h. This means
218 * some of them should probably be moved into _unixos.h. But
219 * _irix.h seems to be quite different in regard to these macros.
220 */
221#define _MD_GET_INTERVAL _PR_UNIX_GetInterval
222#define _MD_INTERVAL_PER_SEC _PR_UNIX_TicksPerSecond
223
224#define _MD_EARLY_INIT _MD_EarlyInit
225#define _MD_FINAL_INIT _PR_UnixInit
226#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
227#define _MD_INIT_THREAD _MD_InitializeThread
228#define _MD_EXIT_THREAD(thread)
229#define _MD_SUSPEND_THREAD(thread)
230#define _MD_RESUME_THREAD(thread)
231#define _MD_CLEAN_THREAD(_thread)
232
233/* The following defines unwrapped versions of select() and poll(). */
234#include <sys/time.h>
235extern int __select (int, fd_set *, fd_set *, fd_set *, struct timeval *);
236#define _MD_SELECT __select
237
238#include <sys/poll.h>
239#define _MD_POLL __poll
240extern int __poll(struct pollfd filedes[], unsigned int nfds, int timeout);
241
242/*
243 * Atomic operations
244 */
245#ifdef OSF1_HAVE_MACHINE_BUILTINS_H
246#include <machine/builtins.h>
247#define _PR_HAVE_ATOMIC_OPS
248#define _MD_INIT_ATOMIC()
249#define _MD_ATOMIC_INCREMENT(val) (__ATOMIC_INCREMENT_LONG(val) + 1)
250#define _MD_ATOMIC_ADD(ptr, val) (__ATOMIC_ADD_LONG(ptr, val) + val)
251#define _MD_ATOMIC_DECREMENT(val) (__ATOMIC_DECREMENT_LONG(val) - 1)
252#define _MD_ATOMIC_SET(val, newval) __ATOMIC_EXCH_LONG(val, newval)
253#endif /* OSF1_HAVE_MACHINE_BUILTINS_H */
254
255#endif /* nspr_osf1_defs_h___ */
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