third_party/npapi/npspy/extern/nspr/md/_darwin.h

   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___ */