third_party/npapi/npspy/extern/nspr/md/_osf1.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_osf1_defs_h___
  36 #define nspr_osf1_defs_h___
  37
  38 /*
  39  * Internal configuration macros
  40  */
  41
  42 #define PR_LINKER_ARCH  "osf"
  43 #define _PR_SI_SYSNAME  "OSF"
  44 #define _PR_SI_ARCHITECTURE "alpha"
  45 #define PR_DLL_SUFFIX           ".so"
  46
  47 #define _PR_VMBASE              0x30000000
  48 #define _PR_STACK_VMBASE        0x50000000
  49 #define _MD_DEFAULT_STACK_SIZE  131072L
  50 #define _MD_MMAP_FLAGS          MAP_PRIVATE
  51
  52 #undef  HAVE_STACK_GROWING_UP
  53 #undef  HAVE_WEAK_IO_SYMBOLS
  54 #undef  HAVE_WEAK_MALLOC_SYMBOLS
  55 #define HAVE_DLL
  56 #define HAVE_BSD_FLOCK
  57
  58 #define NEED_TIME_R
  59 #define USE_DLFCN
  60
  61 #define _PR_POLL_AVAILABLE
  62 #define _PR_USE_POLL
  63 #define _PR_STAT_HAS_ONLY_ST_ATIME
  64 #define _PR_HAVE_LARGE_OFF_T
  65 #define _PR_HAVE_GETIPNODEBYNAME
  66 #define _PR_HAVE_GETIPNODEBYADDR
  67 #define _PR_HAVE_GETADDRINFO
  68 #define _PR_INET6_PROBE
  69 #ifdef _PR_INET6
  70 #define _PR_HAVE_INET_NTOP
  71 #else
  72 #define AF_INET6 26
  73 #ifndef AI_CANONNAME
  74 #define AI_CANONNAME 0x00000002
  75 struct addrinfo {
  76     int              ai_flags;
  77     int              ai_family;
  78     int              ai_socktype;
  79     int              ai_protocol;
  80     size_t           ai_addrlen;
  81     char            *ai_canonname;
  82     struct sockaddr *ai_addr;
  83     struct addrinfo *ai_next;
  84 };
  85 #endif
  86 #define AI_V4MAPPED 0x00000010
  87 #define AI_ALL      0x00000008
  88 #define AI_ADDRCONFIG 0x00000020
  89 #endif
  90 #define _PR_HAVE_POSIX_SEMAPHORES
  91 #define PR_HAVE_POSIX_NAMED_SHARED_MEMORY
  92
  93 #define USE_SETJMP
  94
  95 #include <setjmp.h>
  96
  97 /*
  98  * A jmp_buf is actually a struct sigcontext.  The sc_sp field of
  99  * struct sigcontext is the stack pointer.
 100  */
 101 #define _MD_GET_SP(_t) (((struct sigcontext *) (_t)->md.context)->sc_sp)
 102 #define PR_NUM_GCREGS _JBLEN
 103 #define CONTEXT(_th) ((_th)->md.context)
 104
 105 /*
 106 ** Initialize a thread context to run "_main()" when started
 107 */
 108 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status)         \
 109 {                                                                         \
 110         *status = PR_TRUE;              \
 111     if (setjmp(CONTEXT(_thread))) {                             \
 112         (*_main)();                                             \
 113     }                                                           \
 114     _MD_GET_SP(_thread) = (long) ((_sp) - 64);                  \
 115     _MD_GET_SP(_thread) &= ~15;                                 \
 116 }
 117
 118 #define _MD_SWITCH_CONTEXT(_thread)  \
 119     if (!setjmp(CONTEXT(_thread))) { \
 120         (_thread)->md.errcode = errno;  \
 121         _PR_Schedule();              \
 122     }
 123
 124 /*
 125 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
 126 */
 127 #define _MD_RESTORE_CONTEXT(_thread) \
 128 {                                    \
 129     errno = (_thread)->md.errcode;     \
 130     _MD_SET_CURRENT_THREAD(_thread);    \
 131     longjmp(CONTEXT(_thread), 1);    \
 132 }
 133
 134 /* Machine-dependent (MD) data structures */
 135
 136 struct _MDThread {
 137     jmp_buf context;
 138     int id;
 139     int errcode;
 140 };
 141
 142 struct _MDThreadStack {
 143     PRInt8 notused;
 144 };
 145
 146 struct _MDLock {
 147     PRInt8 notused;
 148 };
 149
 150 struct _MDSemaphore {
 151     PRInt8 notused;
 152 };
 153
 154 struct _MDCVar {
 155     PRInt8 notused;
 156 };
 157
 158 struct _MDSegment {
 159     PRInt8 notused;
 160 };
 161
 162 /*
 163  * md-specific cpu structure field
 164  */
 165 #define _PR_MD_MAX_OSFD FD_SETSIZE
 166
 167 struct _MDCPU_Unix {
 168     PRCList ioQ;
 169     PRUint32 ioq_timeout;
 170     PRInt32 ioq_max_osfd;
 171     PRInt32 ioq_osfd_cnt;
 172 #ifndef _PR_USE_POLL
 173     fd_set fd_read_set, fd_write_set, fd_exception_set;
 174     PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
 175                                 fd_exception_cnt[_PR_MD_MAX_OSFD];
 176 #else
 177         struct pollfd *ioq_pollfds;
 178         int ioq_pollfds_size;
 179 #endif  /* _PR_USE_POLL */
 180 };
 181
 182 #define _PR_IOQ(_cpu)                   ((_cpu)->md.md_unix.ioQ)
 183 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
 184 #define _PR_FD_READ_SET(_cpu)           ((_cpu)->md.md_unix.fd_read_set)
 185 #define _PR_FD_READ_CNT(_cpu)           ((_cpu)->md.md_unix.fd_read_cnt)
 186 #define _PR_FD_WRITE_SET(_cpu)          ((_cpu)->md.md_unix.fd_write_set)
 187 #define _PR_FD_WRITE_CNT(_cpu)          ((_cpu)->md.md_unix.fd_write_cnt)
 188 #define _PR_FD_EXCEPTION_SET(_cpu)      ((_cpu)->md.md_unix.fd_exception_set)
 189 #define _PR_FD_EXCEPTION_CNT(_cpu)      ((_cpu)->md.md_unix.fd_exception_cnt)
 190 #define _PR_IOQ_TIMEOUT(_cpu)           ((_cpu)->md.md_unix.ioq_timeout)
 191 #define _PR_IOQ_MAX_OSFD(_cpu)          ((_cpu)->md.md_unix.ioq_max_osfd)
 192 #define _PR_IOQ_OSFD_CNT(_cpu)          ((_cpu)->md.md_unix.ioq_osfd_cnt)
 193 #define _PR_IOQ_POLLFDS(_cpu)           ((_cpu)->md.md_unix.ioq_pollfds)
 194 #define _PR_IOQ_POLLFDS_SIZE(_cpu)      ((_cpu)->md.md_unix.ioq_pollfds_size)
 195
 196 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
 197
 198 struct _MDCPU {
 199         struct _MDCPU_Unix md_unix;
 200 };
 201
 202 #ifndef _PR_PTHREADS
 203 #define _MD_INIT_LOCKS()
 204 #endif
 205 #define _MD_NEW_LOCK(lock) PR_SUCCESS
 206 #define _MD_FREE_LOCK(lock)
 207 #define _MD_LOCK(lock)
 208 #define _MD_UNLOCK(lock)
 209 #define _MD_INIT_IO()
 210 #define _MD_IOQ_LOCK()
 211 #define _MD_IOQ_UNLOCK()
 212
 213 /*
 214  * The following are copied from _sunos.h, _aix.h.  This means
 215  * some of them should probably be moved into _unixos.h.  But
 216  * _irix.h seems to be quite different in regard to these macros.
 217  */
 218 #define _MD_GET_INTERVAL                  _PR_UNIX_GetInterval
 219 #define _MD_INTERVAL_PER_SEC              _PR_UNIX_TicksPerSecond
 220
 221 #define _MD_EARLY_INIT          _MD_EarlyInit
 222 #define _MD_FINAL_INIT          _PR_UnixInit
 223 #define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
 224 #define _MD_INIT_THREAD         _MD_InitializeThread
 225 #define _MD_EXIT_THREAD(thread)
 226 #define _MD_SUSPEND_THREAD(thread)
 227 #define _MD_RESUME_THREAD(thread)
 228 #define _MD_CLEAN_THREAD(_thread)
 229
 230 /* The following defines unwrapped versions of select() and poll(). */
 231 #include <sys/time.h>
 232 extern int __select (int, fd_set *, fd_set *, fd_set *, struct timeval *);
 233 #define _MD_SELECT              __select
 234
 235 #include <sys/poll.h>
 236 #define _MD_POLL __poll
 237 extern int __poll(struct pollfd filedes[], unsigned int nfds, int timeout);
 238
 239 /*
 240  * Atomic operations
 241  */
 242 #ifdef OSF1_HAVE_MACHINE_BUILTINS_H
 243 #include <machine/builtins.h>
 244 #define _PR_HAVE_ATOMIC_OPS
 245 #define _MD_INIT_ATOMIC()
 246 #define _MD_ATOMIC_INCREMENT(val) (__ATOMIC_INCREMENT_LONG(val) + 1)
 247 #define _MD_ATOMIC_ADD(ptr, val)  (__ATOMIC_ADD_LONG(ptr, val) + val)
 248 #define _MD_ATOMIC_DECREMENT(val) (__ATOMIC_DECREMENT_LONG(val) - 1)
 249 #define _MD_ATOMIC_SET(val, newval) __ATOMIC_EXCH_LONG(val, newval)
 250 #endif /* OSF1_HAVE_MACHINE_BUILTINS_H */
 251
 252 #endif /* nspr_osf1_defs_h___ */