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() 92 extern PRInt32 _PR_DarwinPPC_AtomicIncrement(PRInt32 *val); 93 #define _MD_ATOMIC_INCREMENT(val) _PR_DarwinPPC_AtomicIncrement(val) 94 extern PRInt32 _PR_DarwinPPC_AtomicDecrement(PRInt32 *val); 95 #define _MD_ATOMIC_DECREMENT(val) _PR_DarwinPPC_AtomicDecrement(val) 96 extern PRInt32 _PR_DarwinPPC_AtomicSet(PRInt32 *val, PRInt32 newval); 97 #define _MD_ATOMIC_SET(val, newval) _PR_DarwinPPC_AtomicSet(val, newval) 98 extern 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 */ 143 144 struct _MDThread { 145 PR_CONTEXT_TYPE context; 146 int id; 147 int errcode; 148 }; 149 150 struct _MDThreadStack { 151 PRInt8 notused; 152 }; 153 154 struct _MDLock { 155 PRInt8 notused; 156 }; 157 158 struct _MDSemaphore { 159 PRInt8 notused; 160 }; 161 162 struct _MDCVar { 163 PRInt8 notused; 164 }; 165 166 struct _MDSegment { 167 PRInt8 notused; 168 }; 169 170 /* 171 * md-specific cpu structure field 172 */ 173 #define _PR_MD_MAX_OSFD FD_SETSIZE 174 175 struct _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) 32 205 206 struct _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() 218 219 extern 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) 227 228 extern PRStatus _MD_CREATE_THREAD( 229 PRThread *thread, 230 void (*start) (void *), 231 PRThreadPriority priority, 232 PRThreadScope scope, 233 PRThreadState state, 234 PRUint32 stackSize); 235 extern void _MD_SET_PRIORITY(struct _MDThread *thread, PRUintn newPri); 236 extern PRStatus _MD_WAIT(PRThread *, PRIntervalTime timeout); 237 extern PRStatus _MD_WAKEUP_WAITER(PRThread *); 238 extern 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 246 247 extern void _MD_EarlyInit(void); 248 extern PRIntervalTime _PR_UNIX_GetInterval(void); 249 extern 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
