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_dgux_defs_h___
36#define nspr_dgux_defs_h___
37
38/*
39 * Internal configuration macros
40 */
41
42#define PR_LINKER_ARCH	"dgux"
43#define _PR_SI_SYSNAME		"DGUX"
44#define _PR_SI_ARCHITECTURE	"x86"
45#define PR_DLL_SUFFIX		".so"
46
47#define _PR_VMBASE	 	0x30000000
48#define _PR_STACK_VMBASE	0x50000000
49#define _MD_DEFAULT_STACK_SIZE	65536L
50#define _MD_MMAP_FLAGS          MAP_PRIVATE
51
52#ifndef	HAVE_WEAK_IO_SYMBOLS
53#define	HAVE_WEAK_IO_SYMBOLS
54#endif
55
56#undef  HAVE_STACK_GROWING_UP
57#define HAVE_NETCONFIG
58#define	HAVE_DLL
59#define	USE_DLFCN
60#define NEED_STRFTIME_LOCK
61#define NEED_TIME_R
62#define _PR_NEED_STRCASECMP
63#define _PR_POLL_AVAILABLE
64#define _PR_USE_POLL
65#define _PR_NO_LARGE_FILES
66#define _PR_STAT_HAS_ONLY_ST_ATIME
67
68#define USE_SETJMP
69
70#include <setjmp.h>
71
72#define _SETJMP setjmp
73#define _LONGJMP longjmp
74#define _PR_CONTEXT_TYPE         jmp_buf
75#define _MD_GET_SP(_t)           (_t)->md.context[4]
76#define _PR_NUM_GCREGS	_JBLEN
77
78#define CONTEXT(_th) ((_th)->md.context)
79
80/*
81** Initialize the thread context preparing it to execute _main.
82*/
83#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
84{								  \
85    *status = PR_TRUE; \
86    if(_SETJMP(CONTEXT(_thread))) (*_main)(); \
87    _MD_GET_SP(_thread) = (int) ((_sp) - 128); \
88}
89
90#define _MD_SWITCH_CONTEXT(_thread)  \
91    if (!_SETJMP(CONTEXT(_thread))) { \
92	(_thread)->md.errcode = errno;  \
93	_PR_Schedule();		     \
94    }
95
96/*
97** Restore a thread context, saved by _MD_SWITCH_CONTEXT
98*/
99#define _MD_RESTORE_CONTEXT(_thread) \
100{				     \
101    errno = (_thread)->md.errcode;	     \
102    _MD_SET_CURRENT_THREAD(_thread); \
103    _LONGJMP(CONTEXT(_thread), 1);    \
104}
105
106/* Machine-dependent (MD) data structures.
107 * Don't use SVR4 native threads (yet).
108 */
109
110struct _MDThread {
111    _PR_CONTEXT_TYPE context;
112    int id;
113    int errcode;
114};
115
116struct _MDThreadStack {
117    PRInt8 notused;
118};
119
120struct _MDLock {
121    PRInt8 notused;
122};
123
124struct _MDSemaphore {
125    PRInt8 notused;
126};
127
128struct _MDCVar {
129    PRInt8 notused;
130};
131
132struct _MDSegment {
133    PRInt8 notused;
134};
135
136/*
137 * md-specific cpu structure field
138 */
139#define _PR_MD_MAX_OSFD FD_SETSIZE
140
141struct _MDCPU_Unix {
142    PRCList ioQ;
143    PRUint32 ioq_timeout;
144    PRInt32 ioq_max_osfd;
145    PRInt32 ioq_osfd_cnt;
146#ifndef _PR_USE_POLL
147    fd_set fd_read_set, fd_write_set, fd_exception_set;
148    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
149                fd_exception_cnt[_PR_MD_MAX_OSFD];
150#else
151    struct pollfd *ioq_pollfds;
152    int ioq_pollfds_size;
153#endif  /* _PR_USE_POLL */
154};
155
156#define _PR_IOQ(_cpu)               ((_cpu)->md.md_unix.ioQ)
157#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
158#define _PR_FD_READ_SET(_cpu)       ((_cpu)->md.md_unix.fd_read_set)
159#define _PR_FD_READ_CNT(_cpu)       ((_cpu)->md.md_unix.fd_read_cnt)
160#define _PR_FD_WRITE_SET(_cpu)      ((_cpu)->md.md_unix.fd_write_set)
161#define _PR_FD_WRITE_CNT(_cpu)      ((_cpu)->md.md_unix.fd_write_cnt)
162#define _PR_FD_EXCEPTION_SET(_cpu)  ((_cpu)->md.md_unix.fd_exception_set)
163#define _PR_FD_EXCEPTION_CNT(_cpu)  ((_cpu)->md.md_unix.fd_exception_cnt)
164#define _PR_IOQ_TIMEOUT(_cpu)       ((_cpu)->md.md_unix.ioq_timeout)
165#define _PR_IOQ_MAX_OSFD(_cpu)      ((_cpu)->md.md_unix.ioq_max_osfd)
166#define _PR_IOQ_OSFD_CNT(_cpu)      ((_cpu)->md.md_unix.ioq_osfd_cnt)
167#define _PR_IOQ_POLLFDS(_cpu)       ((_cpu)->md.md_unix.ioq_pollfds)
168#define _PR_IOQ_POLLFDS_SIZE(_cpu)  ((_cpu)->md.md_unix.ioq_pollfds_size)
169
170#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
171
172struct _MDCPU {
173    struct _MDCPU_Unix md_unix;
174};
175
176#define _MD_INIT_LOCKS()
177#define _MD_NEW_LOCK(lock) PR_SUCCESS
178#define _MD_FREE_LOCK(lock)
179#define _MD_LOCK(lock)
180#define _MD_UNLOCK(lock)
181#define _MD_INIT_IO()
182#define _MD_IOQ_LOCK()
183#define _MD_IOQ_UNLOCK()
184
185/*
186 * The following are copied from _sunos.h, _aix.h.  This means
187 * some of them should probably be moved into _unixos.h.  But
188 * _irix.h seems to be quite different in regard to these macros.
189 */
190#define _MD_GET_INTERVAL                  _PR_UNIX_GetInterval
191#define _MD_INTERVAL_PER_SEC              _PR_UNIX_TicksPerSecond
192
193#define _MD_EARLY_INIT		_MD_EarlyInit
194#define _MD_FINAL_INIT		_PR_UnixInit
195#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
196#define _MD_INIT_THREAD         _MD_InitializeThread
197#define _MD_EXIT_THREAD(thread)
198#define	_MD_SUSPEND_THREAD(thread)
199#define	_MD_RESUME_THREAD(thread)
200#define _MD_CLEAN_THREAD(_thread)
201
202/*
203 * We wrapped the select() call.  _MD_SELECT refers to the built-in,
204 * unwrapped version.
205 */
206#include <unistd.h>
207#include <sys/types.h>
208#include <sys/time.h>
209extern int _select(int nfds, fd_set *readfds, fd_set *writefds,
210	fd_set *execptfds, struct timeval *timeout);
211#define _MD_SELECT _select
212
213#define _MD_POLL _poll
214#include <poll.h>
215#include <stropts.h>
216extern int _poll(struct pollfd *fds, unsigned long nfds, int timeout);
217
218#endif /* nspr_dgux_defs_h___ */
219