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_darwin_defs_h___
36#define nspr_darwin_defs_h___
37
38#include "prthread.h"
39
40#include <sys/syscall.h>
41
42#define PR_LINKER_ARCH	"darwin"
43#define _PR_SI_SYSNAME  "DARWIN"
44#ifdef i386
45#define _PR_SI_ARCHITECTURE "x86"
46#else
47#define _PR_SI_ARCHITECTURE "ppc"
48#endif
49#define PR_DLL_SUFFIX		".dylib"
50
51#define _PR_VMBASE              0x30000000
52#define _PR_STACK_VMBASE	0x50000000
53#define _MD_DEFAULT_STACK_SIZE	65536L
54#define _MD_MMAP_FLAGS          MAP_PRIVATE
55
56#undef  HAVE_STACK_GROWING_UP
57#define HAVE_DLL
58#define USE_MACH_DYLD
59#define _PR_HAVE_SOCKADDR_LEN
60#define _PR_STAT_HAS_ST_ATIMESPEC
61#define _PR_NO_LARGE_FILES
62#define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
63
64#define _PR_INET6
65/*
66 * I'd prefer to use getipnodebyname and getipnodebyaddr but the
67 * getipnodebyname(3) man page on Mac OS X 10.2 says they are not
68 * thread-safe.  AI_V4MAPPED|AI_ADDRCONFIG doesn't work either.
69 */
70#define _PR_HAVE_GETHOSTBYNAME2
71#define _PR_HAVE_GETADDRINFO
72/*
73 * On Mac OS X 10.2, gethostbyaddr fails with h_errno=NO_RECOVERY
74 * if you pass an IPv4-mapped IPv6 address to it.
75 */
76#define _PR_GHBA_DISALLOW_V4MAPPED
77/*
78 * socket(AF_INET6) fails with EPROTONOSUPPORT on Mac OS X 10.1.
79 * IPv6 under OS X 10.2 and below is not complete (see bug 222031).
80 */
81#if MACOS_DEPLOYMENT_TARGET < 100300
82#define _PR_INET6_PROBE
83#endif
84/* Mac OS X 10.2 has inet_ntop and inet_pton. */
85#if MACOS_DEPLOYMENT_TARGET >= 100200
86#define _PR_HAVE_INET_NTOP
87#endif
88
89#if defined(__ppc__)
90#define _PR_HAVE_ATOMIC_OPS
91#define _MD_INIT_ATOMIC()
92extern PRInt32 _PR_DarwinPPC_AtomicIncrement(PRInt32 *val);
93#define _MD_ATOMIC_INCREMENT(val)   _PR_DarwinPPC_AtomicIncrement(val)
94extern PRInt32 _PR_DarwinPPC_AtomicDecrement(PRInt32 *val);
95#define _MD_ATOMIC_DECREMENT(val)   _PR_DarwinPPC_AtomicDecrement(val)
96extern PRInt32 _PR_DarwinPPC_AtomicSet(PRInt32 *val, PRInt32 newval);
97#define _MD_ATOMIC_SET(val, newval) _PR_DarwinPPC_AtomicSet(val, newval)
98extern PRInt32 _PR_DarwinPPC_AtomicAdd(PRInt32 *ptr, PRInt32 val);
99#define _MD_ATOMIC_ADD(ptr, val)    _PR_DarwinPPC_AtomicAdd(ptr, val)
100#endif /* __ppc__ */
101
102#define USE_SETJMP
103
104#if !defined(_PR_PTHREADS)
105
106#include <setjmp.h>
107
108#define PR_CONTEXT_TYPE	jmp_buf
109
110#define CONTEXT(_th)       ((_th)->md.context)
111#define _MD_GET_SP(_th)    (((struct sigcontext *) (_th)->md.context)->sc_onstack)
112#define PR_NUM_GCREGS	    _JBLEN
113
114/*
115** Initialize a thread context to run "_main()" when started
116*/
117#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)  \
118{  \
119    *status = PR_TRUE;  \
120    if (setjmp(CONTEXT(_thread))) {  \
121        _main();  \
122    }  \
123    _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \
124}
125
126#define _MD_SWITCH_CONTEXT(_thread)  \
127    if (!setjmp(CONTEXT(_thread))) {  \
128	(_thread)->md.errcode = errno;  \
129	_PR_Schedule();  \
130    }
131
132/*
133** Restore a thread context, saved by _MD_SWITCH_CONTEXT
134*/
135#define _MD_RESTORE_CONTEXT(_thread) \
136{   \
137    errno = (_thread)->md.errcode;  \
138    _MD_SET_CURRENT_THREAD(_thread);  \
139    longjmp(CONTEXT(_thread), 1);  \
140}
141
142/* Machine-dependent (MD) data structures */
143
144struct _MDThread {
145    PR_CONTEXT_TYPE context;
146    int id;
147    int errcode;
148};
149
150struct _MDThreadStack {
151    PRInt8 notused;
152};
153
154struct _MDLock {
155    PRInt8 notused;
156};
157
158struct _MDSemaphore {
159    PRInt8 notused;
160};
161
162struct _MDCVar {
163    PRInt8 notused;
164};
165
166struct _MDSegment {
167    PRInt8 notused;
168};
169
170/*
171 * md-specific cpu structure field
172 */
173#define _PR_MD_MAX_OSFD FD_SETSIZE
174
175struct _MDCPU_Unix {
176    PRCList ioQ;
177    PRUint32 ioq_timeout;
178    PRInt32 ioq_max_osfd;
179    PRInt32 ioq_osfd_cnt;
180#ifndef _PR_USE_POLL
181    fd_set fd_read_set, fd_write_set, fd_exception_set;
182    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
183				fd_exception_cnt[_PR_MD_MAX_OSFD];
184#else
185	struct pollfd *ioq_pollfds;
186	int ioq_pollfds_size;
187#endif	/* _PR_USE_POLL */
188};
189
190#define _PR_IOQ(_cpu)			((_cpu)->md.md_unix.ioQ)
191#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
192#define _PR_FD_READ_SET(_cpu)		((_cpu)->md.md_unix.fd_read_set)
193#define _PR_FD_READ_CNT(_cpu)		((_cpu)->md.md_unix.fd_read_cnt)
194#define _PR_FD_WRITE_SET(_cpu)		((_cpu)->md.md_unix.fd_write_set)
195#define _PR_FD_WRITE_CNT(_cpu)		((_cpu)->md.md_unix.fd_write_cnt)
196#define _PR_FD_EXCEPTION_SET(_cpu)	((_cpu)->md.md_unix.fd_exception_set)
197#define _PR_FD_EXCEPTION_CNT(_cpu)	((_cpu)->md.md_unix.fd_exception_cnt)
198#define _PR_IOQ_TIMEOUT(_cpu)		((_cpu)->md.md_unix.ioq_timeout)
199#define _PR_IOQ_MAX_OSFD(_cpu)		((_cpu)->md.md_unix.ioq_max_osfd)
200#define _PR_IOQ_OSFD_CNT(_cpu)		((_cpu)->md.md_unix.ioq_osfd_cnt)
201#define _PR_IOQ_POLLFDS(_cpu)		((_cpu)->md.md_unix.ioq_pollfds)
202#define _PR_IOQ_POLLFDS_SIZE(_cpu)	((_cpu)->md.md_unix.ioq_pollfds_size)
203
204#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)	32
205
206struct _MDCPU {
207	struct _MDCPU_Unix md_unix;
208};
209
210#define _MD_INIT_LOCKS()
211#define _MD_NEW_LOCK(lock) PR_SUCCESS
212#define _MD_FREE_LOCK(lock)
213#define _MD_LOCK(lock)
214#define _MD_UNLOCK(lock)
215#define _MD_INIT_IO()
216#define _MD_IOQ_LOCK()
217#define _MD_IOQ_UNLOCK()
218
219extern PRStatus _MD_InitializeThread(PRThread *thread);
220
221#define _MD_INIT_RUNNING_CPU(cpu)       _MD_unix_init_running_cpu(cpu)
222#define _MD_INIT_THREAD                 _MD_InitializeThread
223#define _MD_EXIT_THREAD(thread)
224#define _MD_SUSPEND_THREAD(thread)      _MD_suspend_thread
225#define _MD_RESUME_THREAD(thread)       _MD_resume_thread
226#define _MD_CLEAN_THREAD(_thread)
227
228extern PRStatus _MD_CREATE_THREAD(
229    PRThread *thread,
230    void (*start) (void *),
231    PRThreadPriority priority,
232    PRThreadScope scope,
233    PRThreadState state,
234    PRUint32 stackSize);
235extern void _MD_SET_PRIORITY(struct _MDThread *thread, PRUintn newPri);
236extern PRStatus _MD_WAIT(PRThread *, PRIntervalTime timeout);
237extern PRStatus _MD_WAKEUP_WAITER(PRThread *);
238extern void _MD_YIELD(void);
239
240#endif /* ! _PR_PTHREADS */
241
242#define _MD_EARLY_INIT          _MD_EarlyInit
243#define _MD_FINAL_INIT			_PR_UnixInit
244#define _MD_GET_INTERVAL        _PR_UNIX_GetInterval
245#define _MD_INTERVAL_PER_SEC    _PR_UNIX_TicksPerSecond
246
247extern void             _MD_EarlyInit(void);
248extern PRIntervalTime   _PR_UNIX_GetInterval(void);
249extern PRIntervalTime   _PR_UNIX_TicksPerSecond(void);
250
251/*
252 * We wrapped the select() call.  _MD_SELECT refers to the built-in,
253 * unwrapped version.
254 */
255#define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)
256
257/* For writev() */
258#include <sys/uio.h>
259
260#endif /* nspr_darwin_defs_h___ */
261