third_party/npapi/npspy/extern/nspr/md/_aix.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_aix_defs_h___
  36 #define nspr_aix_defs_h___
  37
  38 #include <sys/types.h>
  39 #if defined(_PR_PTHREADS) || defined(PTHREADS_USER)
  40 #include <pthread.h>
  41 #endif
  42
  43 /*
  44  * To pick up fd_set and the poll events.
  45  */
  46 #include <sys/select.h>
  47 #include <sys/poll.h>
  48
  49 /*
  50  * Internal configuration macros
  51  */
  52
  53 #define PR_LINKER_ARCH          "aix"
  54 #define _PR_SI_SYSNAME              "AIX"
  55 #define _PR_SI_ARCHITECTURE         "rs6000"
  56 #define PR_DLL_SUFFIX               ".so"
  57
  58 #define _PR_VMBASE                      0x30000000
  59 #define _PR_STACK_VMBASE            0x50000000
  60 #define _MD_DEFAULT_STACK_SIZE  (2*65536L)
  61 #define _MD_MINIMUM_STACK_SIZE  (2*65536L)
  62 #define _MD_MMAP_FLAGS              MAP_PRIVATE
  63
  64 #define NEED_TIME_R
  65 #undef  HAVE_STACK_GROWING_UP
  66 #undef  HAVE_WEAK_IO_SYMBOLS
  67 #undef  HAVE_WEAK_MALLOC_SYMBOLS
  68 #define HAVE_DLL
  69 #define USE_DLFCN
  70 #define _PR_HAVE_SOCKADDR_LEN
  71 #define _PR_POLL_AVAILABLE
  72 #define _PR_USE_POLL
  73 #define _PR_STAT_HAS_ONLY_ST_ATIME
  74 #ifdef _PR_INET6
  75 #define _PR_HAVE_INET_NTOP
  76 #define _PR_HAVE_GETHOSTBYNAME2
  77 #define _PR_HAVE_GETADDRINFO
  78 #endif
  79 #define _PR_HAVE_SYSV_SEMAPHORES
  80 #define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
  81 #define _PR_ACCEPT_INHERIT_NONBLOCK
  82
  83 /* Timer operations */
  84 #if defined(AIX_TIMERS)
  85 extern PRIntervalTime _MD_AixGetInterval(void);
  86 #define _MD_GET_INTERVAL _MD_AixGetInterval
  87
  88 extern PRIntervalTime _MD_AixIntervalPerSec(void);
  89 #define _MD_INTERVAL_PER_SEC _MD_AixIntervalPerSec
  90
  91 #else  /* defined(AIX_TIMERS) */
  92 #define _MD_GET_INTERVAL        _PR_UNIX_GetInterval
  93 #define _MD_INTERVAL_PER_SEC    _PR_UNIX_TicksPerSecond
  94 #endif  /* defined(AIX_TIMERS) */
  95
  96 #ifdef AIX_HAVE_ATOMIC_OP_H
  97 /* The atomic operations */
  98 #include <sys/atomic_op.h>
  99 #define _PR_HAVE_ATOMIC_OPS
 100 #ifndef IS_64
 101 #define _PR_HAVE_ATOMIC_CAS
 102 #endif
 103 #define _MD_INIT_ATOMIC()
 104 #define _MD_ATOMIC_INCREMENT(val)   ((PRInt32)fetch_and_add((atomic_p)val, 1) + 1)
 105 #define _MD_ATOMIC_ADD(ptr, val)   ((PRInt32)fetch_and_add((atomic_p)ptr, val) + val)
 106 #define _MD_ATOMIC_DECREMENT(val)   ((PRInt32)fetch_and_add((atomic_p)val, -1) - 1)
 107 #define _MD_ATOMIC_SET(val, newval) _AIX_AtomicSet(val, newval)
 108 #endif /* AIX_HAVE_ATOMIC_OP_H */
 109
 110 #define USE_SETJMP
 111
 112 #include <setjmp.h>
 113
 114 #define _MD_GET_SP(_t)                          (_t)->md.jb[3]
 115 #define _MD_SET_THR_SP(_t, _sp)         ((_t)->md.jb[3] = (int) (_sp - 2 * 64))
 116 #define PR_NUM_GCREGS                           _JBLEN
 117
 118 #define CONTEXT(_th)                            ((_th)->md.jb)
 119 #define SAVE_CONTEXT(_th)                       _setjmp(CONTEXT(_th))
 120 #define GOTO_CONTEXT(_th)                       _longjmp(CONTEXT(_th), 1)
 121
 122 #ifdef PTHREADS_USER
 123 #include "_nspr_pthread.h"
 124 #else
 125
 126 /*
 127 ** Initialize the thread context preparing it to execute _main.
 128 */
 129 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status)         \
 130     PR_BEGIN_MACRO                                    \
 131         *status = PR_TRUE;              \
 132         if (setjmp(CONTEXT(_thread))) { \
 133             (*_main)();                 \
 134         }                               \
 135         _MD_GET_SP(_thread) = (int) (_sp - 2 * 64);             \
 136     PR_END_MACRO
 137
 138 #define _MD_SWITCH_CONTEXT(_thread)  \
 139     if (!setjmp(CONTEXT(_thread))) { \
 140         (_thread)->md.errcode = errno;  \
 141         _PR_Schedule();              \
 142     }
 143
 144 /*
 145 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
 146 */
 147 #define _MD_RESTORE_CONTEXT(_thread) \
 148 {                                    \
 149     errno = (_thread)->md.errcode; \
 150     _MD_SET_CURRENT_THREAD(_thread); \
 151     longjmp(CONTEXT(_thread), 1); \
 152 }
 153
 154 /* Machine-dependent (MD) data structures */
 155
 156 struct _MDThread {
 157     jmp_buf jb;
 158     int id;
 159     int errcode;
 160 };
 161
 162 struct _MDThreadStack {
 163     PRInt8 notused;
 164 };
 165
 166 struct _MDLock {
 167     PRInt8 notused;
 168 };
 169
 170 struct _MDSemaphore {
 171     PRInt8 notused;
 172 };
 173
 174 struct _MDCVar {
 175     PRInt8 notused;
 176 };
 177
 178 struct _MDSegment {
 179     PRInt8 notused;
 180 };
 181
 182 /*
 183  * md-specific cpu structure field
 184  */
 185 #define _PR_MD_MAX_OSFD FD_SETSIZE
 186
 187 struct _MDCPU_Unix {
 188     PRCList ioQ;
 189     PRUint32 ioq_timeout;
 190     PRInt32 ioq_max_osfd;
 191     PRInt32 ioq_osfd_cnt;
 192 #ifndef _PR_USE_POLL
 193     fd_set fd_read_set, fd_write_set, fd_exception_set;
 194     PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
 195                                 fd_exception_cnt[_PR_MD_MAX_OSFD];
 196 #else
 197         struct pollfd *ioq_pollfds;
 198         int ioq_pollfds_size;
 199 #endif  /* _PR_USE_POLL */
 200 };
 201
 202 #define _PR_IOQ(_cpu)                   ((_cpu)->md.md_unix.ioQ)
 203 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
 204 #define _PR_FD_READ_SET(_cpu)           ((_cpu)->md.md_unix.fd_read_set)
 205 #define _PR_FD_READ_CNT(_cpu)           ((_cpu)->md.md_unix.fd_read_cnt)
 206 #define _PR_FD_WRITE_SET(_cpu)          ((_cpu)->md.md_unix.fd_write_set)
 207 #define _PR_FD_WRITE_CNT(_cpu)          ((_cpu)->md.md_unix.fd_write_cnt)
 208 #define _PR_FD_EXCEPTION_SET(_cpu)      ((_cpu)->md.md_unix.fd_exception_set)
 209 #define _PR_FD_EXCEPTION_CNT(_cpu)      ((_cpu)->md.md_unix.fd_exception_cnt)
 210 #define _PR_IOQ_TIMEOUT(_cpu)           ((_cpu)->md.md_unix.ioq_timeout)
 211 #define _PR_IOQ_MAX_OSFD(_cpu)          ((_cpu)->md.md_unix.ioq_max_osfd)
 212 #define _PR_IOQ_OSFD_CNT(_cpu)          ((_cpu)->md.md_unix.ioq_osfd_cnt)
 213 #define _PR_IOQ_POLLFDS(_cpu)           ((_cpu)->md.md_unix.ioq_pollfds)
 214 #define _PR_IOQ_POLLFDS_SIZE(_cpu)      ((_cpu)->md.md_unix.ioq_pollfds_size)
 215
 216 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
 217
 218 struct _MDCPU {
 219     struct _MDCPU_Unix md_unix;
 220 };
 221
 222 #if !defined(_PR_PTHREADS)
 223 #define _MD_INIT_LOCKS()
 224 #endif
 225
 226 #define _MD_NEW_LOCK(lock) PR_SUCCESS
 227 #define _MD_FREE_LOCK(lock)
 228 #define _MD_LOCK(lock)
 229 #define _MD_UNLOCK(lock)
 230 #define _MD_INIT_IO()
 231 #define _MD_IOQ_LOCK()
 232 #define _MD_IOQ_UNLOCK()
 233
 234 #define _MD_EARLY_INIT                  _MD_EarlyInit
 235 #define _MD_FINAL_INIT                  _PR_UnixInit
 236 #define _MD_INIT_RUNNING_CPU(cpu)       _MD_unix_init_running_cpu(cpu)
 237 #define _MD_INIT_THREAD                 _MD_InitializeThread
 238 #define _MD_EXIT_THREAD(thread)
 239 #define _MD_SUSPEND_THREAD(thread)
 240 #define _MD_RESUME_THREAD(thread)
 241 #define _MD_CLEAN_THREAD(_thread)
 242 #endif /* PTHREADS_USER */
 243
 244 #ifdef AIX_RENAME_SELECT
 245 #define _MD_SELECT      select
 246 #define _MD_POLL        poll
 247 #endif
 248
 249 extern void _MD_aix_map_sendfile_error(int err);
 250
 251 #endif /* nspr_aix_defs_h___ */