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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_darwin_defs_h___ |
| 39 #define nspr_darwin_defs_h___ |
| 40 |
| 41 #include "prthread.h" |
| 42 |
| 43 #include <sys/syscall.h> |
| 44 |
| 45 #ifdef XP_MACOSX |
| 46 #include <AvailabilityMacros.h> |
| 47 #endif |
| 48 |
| 49 #define PR_LINKER_ARCH "darwin" |
| 50 #define _PR_SI_SYSNAME "DARWIN" |
| 51 #ifdef __i386__ |
| 52 #define _PR_SI_ARCHITECTURE "x86" |
| 53 #elif defined(__ppc__) |
| 54 #define _PR_SI_ARCHITECTURE "ppc" |
| 55 #endif |
| 56 #define PR_DLL_SUFFIX ".dylib" |
| 57 |
| 58 #define _PR_VMBASE 0x30000000 |
| 59 #define _PR_STACK_VMBASE 0x50000000 |
| 60 #define _MD_DEFAULT_STACK_SIZE 65536L |
| 61 #define _MD_MMAP_FLAGS MAP_PRIVATE |
| 62 |
| 63 #undef HAVE_STACK_GROWING_UP |
| 64 #define HAVE_DLL |
| 65 #define USE_MACH_DYLD |
| 66 #define _PR_HAVE_SOCKADDR_LEN |
| 67 #define _PR_STAT_HAS_ST_ATIMESPEC |
| 68 #define _PR_NO_LARGE_FILES |
| 69 #define PR_HAVE_SYSV_NAMED_SHARED_MEMORY |
| 70 |
| 71 #define _PR_INET6 |
| 72 /* |
| 73 * I'd prefer to use getipnodebyname and getipnodebyaddr but the |
| 74 * getipnodebyname(3) man page on Mac OS X 10.2 says they are not |
| 75 * thread-safe. AI_V4MAPPED|AI_ADDRCONFIG doesn't work either. |
| 76 */ |
| 77 #define _PR_HAVE_GETHOSTBYNAME2 |
| 78 #define _PR_HAVE_GETADDRINFO |
| 79 /* |
| 80 * On Mac OS X 10.2, gethostbyaddr fails with h_errno=NO_RECOVERY |
| 81 * if you pass an IPv4-mapped IPv6 address to it. |
| 82 */ |
| 83 #define _PR_GHBA_DISALLOW_V4MAPPED |
| 84 #ifdef XP_MACOSX |
| 85 #if !defined(MAC_OS_X_VERSION_10_3) || \ |
| 86 MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_3 |
| 87 /* |
| 88 * socket(AF_INET6) fails with EPROTONOSUPPORT on Mac OS X 10.1. |
| 89 * IPv6 under OS X 10.2 and below is not complete (see bug 222031). |
| 90 */ |
| 91 #define _PR_INET6_PROBE |
| 92 #endif /* DT < 10.3 */ |
| 93 #if defined(MAC_OS_X_VERSION_10_2) && \ |
| 94 MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_2 |
| 95 /* Mac OS X 10.2 has inet_ntop and inet_pton. */ |
| 96 #define _PR_HAVE_INET_NTOP |
| 97 #endif /* DT >= 10.2 */ |
| 98 #endif /* XP_MACOSX */ |
| 99 #define _PR_IPV6_V6ONLY_PROBE |
| 100 /* The IPV6_V6ONLY socket option is not defined on Mac OS X 10.1. */ |
| 101 #ifndef IPV6_V6ONLY |
| 102 #define IPV6_V6ONLY 27 |
| 103 #endif |
| 104 |
| 105 #if defined(__ppc__) |
| 106 #define _PR_HAVE_ATOMIC_OPS |
| 107 #define _MD_INIT_ATOMIC() |
| 108 extern PRInt32 _PR_DarwinPPC_AtomicIncrement(PRInt32 *val); |
| 109 #define _MD_ATOMIC_INCREMENT(val) _PR_DarwinPPC_AtomicIncrement(val) |
| 110 extern PRInt32 _PR_DarwinPPC_AtomicDecrement(PRInt32 *val); |
| 111 #define _MD_ATOMIC_DECREMENT(val) _PR_DarwinPPC_AtomicDecrement(val) |
| 112 extern PRInt32 _PR_DarwinPPC_AtomicSet(PRInt32 *val, PRInt32 newval); |
| 113 #define _MD_ATOMIC_SET(val, newval) _PR_DarwinPPC_AtomicSet(val, newval) |
| 114 extern PRInt32 _PR_DarwinPPC_AtomicAdd(PRInt32 *ptr, PRInt32 val); |
| 115 #define _MD_ATOMIC_ADD(ptr, val) _PR_DarwinPPC_AtomicAdd(ptr, val) |
| 116 #elif defined(__i386__) |
| 117 #define _PR_HAVE_ATOMIC_OPS |
| 118 #define _MD_INIT_ATOMIC() |
| 119 extern PRInt32 _PR_Darwin_x86_AtomicIncrement(PRInt32 *val); |
| 120 #define _MD_ATOMIC_INCREMENT(val) _PR_Darwin_x86_AtomicIncrement(val) |
| 121 extern PRInt32 _PR_Darwin_x86_AtomicDecrement(PRInt32 *val); |
| 122 #define _MD_ATOMIC_DECREMENT(val) _PR_Darwin_x86_AtomicDecrement(val) |
| 123 extern PRInt32 _PR_Darwin_x86_AtomicSet(PRInt32 *val, PRInt32 newval); |
| 124 #define _MD_ATOMIC_SET(val, newval) _PR_Darwin_x86_AtomicSet(val, newval) |
| 125 extern PRInt32 _PR_Darwin_x86_AtomicAdd(PRInt32 *ptr, PRInt32 val); |
| 126 #define _MD_ATOMIC_ADD(ptr, val) _PR_Darwin_x86_AtomicAdd(ptr, val) |
| 127 #endif /* __i386__ */ |
| 128 |
| 129 #define USE_SETJMP |
| 130 |
| 131 #if !defined(_PR_PTHREADS) |
| 132 |
| 133 #include <setjmp.h> |
| 134 |
| 135 #define PR_CONTEXT_TYPE jmp_buf |
| 136 |
| 137 #define CONTEXT(_th) ((_th)->md.context) |
| 138 #define _MD_GET_SP(_th) (((struct sigcontext *) (_th)->md.context)->sc_onstac
k) |
| 139 #define PR_NUM_GCREGS _JBLEN |
| 140 |
| 141 /* |
| 142 ** Initialize a thread context to run "_main()" when started |
| 143 */ |
| 144 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \ |
| 145 { \ |
| 146 *status = PR_TRUE; \ |
| 147 if (setjmp(CONTEXT(_thread))) { \ |
| 148 _main(); \ |
| 149 } \ |
| 150 _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \ |
| 151 } |
| 152 |
| 153 #define _MD_SWITCH_CONTEXT(_thread) \ |
| 154 if (!setjmp(CONTEXT(_thread))) { \ |
| 155 (_thread)->md.errcode = errno; \ |
| 156 _PR_Schedule(); \ |
| 157 } |
| 158 |
| 159 /* |
| 160 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT |
| 161 */ |
| 162 #define _MD_RESTORE_CONTEXT(_thread) \ |
| 163 { \ |
| 164 errno = (_thread)->md.errcode; \ |
| 165 _MD_SET_CURRENT_THREAD(_thread); \ |
| 166 longjmp(CONTEXT(_thread), 1); \ |
| 167 } |
| 168 |
| 169 /* Machine-dependent (MD) data structures */ |
| 170 |
| 171 struct _MDThread { |
| 172 PR_CONTEXT_TYPE context; |
| 173 int id; |
| 174 int errcode; |
| 175 }; |
| 176 |
| 177 struct _MDThreadStack { |
| 178 PRInt8 notused; |
| 179 }; |
| 180 |
| 181 struct _MDLock { |
| 182 PRInt8 notused; |
| 183 }; |
| 184 |
| 185 struct _MDSemaphore { |
| 186 PRInt8 notused; |
| 187 }; |
| 188 |
| 189 struct _MDCVar { |
| 190 PRInt8 notused; |
| 191 }; |
| 192 |
| 193 struct _MDSegment { |
| 194 PRInt8 notused; |
| 195 }; |
| 196 |
| 197 /* |
| 198 * md-specific cpu structure field |
| 199 */ |
| 200 #define _PR_MD_MAX_OSFD FD_SETSIZE |
| 201 |
| 202 struct _MDCPU_Unix { |
| 203 PRCList ioQ; |
| 204 PRUint32 ioq_timeout; |
| 205 PRInt32 ioq_max_osfd; |
| 206 PRInt32 ioq_osfd_cnt; |
| 207 #ifndef _PR_USE_POLL |
| 208 fd_set fd_read_set, fd_write_set, fd_exception_set; |
| 209 PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD], |
| 210 fd_exception_cnt[_PR_MD_MAX_OSFD]; |
| 211 #else |
| 212 struct pollfd *ioq_pollfds; |
| 213 int ioq_pollfds_size; |
| 214 #endif /* _PR_USE_POLL */ |
| 215 }; |
| 216 |
| 217 #define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ) |
| 218 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu)) |
| 219 #define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set) |
| 220 #define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt) |
| 221 #define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set) |
| 222 #define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt) |
| 223 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set) |
| 224 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt) |
| 225 #define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout) |
| 226 #define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd) |
| 227 #define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt) |
| 228 #define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds) |
| 229 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size) |
| 230 |
| 231 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32 |
| 232 |
| 233 struct _MDCPU { |
| 234 struct _MDCPU_Unix md_unix; |
| 235 }; |
| 236 |
| 237 #define _MD_INIT_LOCKS() |
| 238 #define _MD_NEW_LOCK(lock) PR_SUCCESS |
| 239 #define _MD_FREE_LOCK(lock) |
| 240 #define _MD_LOCK(lock) |
| 241 #define _MD_UNLOCK(lock) |
| 242 #define _MD_INIT_IO() |
| 243 #define _MD_IOQ_LOCK() |
| 244 #define _MD_IOQ_UNLOCK() |
| 245 |
| 246 extern PRStatus _MD_InitializeThread(PRThread *thread); |
| 247 |
| 248 #define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu) |
| 249 #define _MD_INIT_THREAD _MD_InitializeThread |
| 250 #define _MD_EXIT_THREAD(thread) |
| 251 #define _MD_SUSPEND_THREAD(thread) _MD_suspend_thread |
| 252 #define _MD_RESUME_THREAD(thread) _MD_resume_thread |
| 253 #define _MD_CLEAN_THREAD(_thread) |
| 254 |
| 255 extern PRStatus _MD_CREATE_THREAD( |
| 256 PRThread *thread, |
| 257 void (*start) (void *), |
| 258 PRThreadPriority priority, |
| 259 PRThreadScope scope, |
| 260 PRThreadState state, |
| 261 PRUint32 stackSize); |
| 262 extern void _MD_SET_PRIORITY(struct _MDThread *thread, PRUintn newPri); |
| 263 extern PRStatus _MD_WAIT(PRThread *, PRIntervalTime timeout); |
| 264 extern PRStatus _MD_WAKEUP_WAITER(PRThread *); |
| 265 extern void _MD_YIELD(void); |
| 266 |
| 267 #endif /* ! _PR_PTHREADS */ |
| 268 |
| 269 #define _MD_EARLY_INIT _MD_EarlyInit |
| 270 #define _MD_FINAL_INIT _PR_UnixInit |
| 271 #define _MD_GET_INTERVAL _PR_UNIX_GetInterval |
| 272 #define _MD_INTERVAL_PER_SEC _PR_UNIX_TicksPerSecond |
| 273 |
| 274 extern void _MD_EarlyInit(void); |
| 275 extern PRIntervalTime _PR_UNIX_GetInterval(void); |
| 276 extern PRIntervalTime _PR_UNIX_TicksPerSecond(void); |
| 277 |
| 278 /* |
| 279 * We wrapped the select() call. _MD_SELECT refers to the built-in, |
| 280 * unwrapped version. |
| 281 */ |
| 282 #define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv) |
| 283 |
| 284 /* For writev() */ |
| 285 #include <sys/uio.h> |
| 286 |
| 287 #endif /* nspr_darwin_defs_h___ */ |
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