third_party/npapi/npspy/extern/nspr/md/_rhapsody.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_rhapsody_defs_h___
  36 #define nspr_rhapsody_defs_h___
  37
  38 #include "prthread.h"
  39
  40 #include <sys/syscall.h>
  41
  42 #define PR_LINKER_ARCH  "rhapsody"
  43 #define _PR_SI_SYSNAME  "RHAPSODY"
  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 USE_SETJMP
  65
  66 #if !defined(_PR_PTHREADS)
  67
  68 #include <setjmp.h>
  69
  70 #define PR_CONTEXT_TYPE jmp_buf
  71
  72 #define CONTEXT(_th)       ((_th)->md.context)
  73 #define _MD_GET_SP(_th)    (((struct sigcontext *) (_th)->md.context)->sc_onstack)
  74 #define PR_NUM_GCREGS       _JBLEN
  75
  76 /*
  77 ** Initialize a thread context to run "_main()" when started
  78 */
  79 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status)  \
  80 {  \
  81     *status = PR_TRUE;  \
  82     if (setjmp(CONTEXT(_thread))) {  \
  83         _main();  \
  84     }  \
  85     _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \
  86 }
  87
  88 #define _MD_SWITCH_CONTEXT(_thread)  \
  89     if (!setjmp(CONTEXT(_thread))) {  \
  90         (_thread)->md.errcode = errno;  \
  91         _PR_Schedule();  \
  92     }
  93
  94 /*
  95 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
  96 */
  97 #define _MD_RESTORE_CONTEXT(_thread) \
  98 {   \
  99     errno = (_thread)->md.errcode;  \
 100     _MD_SET_CURRENT_THREAD(_thread);  \
 101     longjmp(CONTEXT(_thread), 1);  \
 102 }
 103
 104 /* Machine-dependent (MD) data structures */
 105
 106 struct _MDThread {
 107     PR_CONTEXT_TYPE context;
 108     int id;
 109     int errcode;
 110 };
 111
 112 struct _MDThreadStack {
 113     PRInt8 notused;
 114 };
 115
 116 struct _MDLock {
 117     PRInt8 notused;
 118 };
 119
 120 struct _MDSemaphore {
 121     PRInt8 notused;
 122 };
 123
 124 struct _MDCVar {
 125     PRInt8 notused;
 126 };
 127
 128 struct _MDSegment {
 129     PRInt8 notused;
 130 };
 131
 132 /*
 133  * md-specific cpu structure field
 134  */
 135 #define _PR_MD_MAX_OSFD FD_SETSIZE
 136
 137 struct _MDCPU_Unix {
 138     PRCList ioQ;
 139     PRUint32 ioq_timeout;
 140     PRInt32 ioq_max_osfd;
 141     PRInt32 ioq_osfd_cnt;
 142 #ifndef _PR_USE_POLL
 143     fd_set fd_read_set, fd_write_set, fd_exception_set;
 144     PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
 145                                 fd_exception_cnt[_PR_MD_MAX_OSFD];
 146 #else
 147         struct pollfd *ioq_pollfds;
 148         int ioq_pollfds_size;
 149 #endif  /* _PR_USE_POLL */
 150 };
 151
 152 #define _PR_IOQ(_cpu)                   ((_cpu)->md.md_unix.ioQ)
 153 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
 154 #define _PR_FD_READ_SET(_cpu)           ((_cpu)->md.md_unix.fd_read_set)
 155 #define _PR_FD_READ_CNT(_cpu)           ((_cpu)->md.md_unix.fd_read_cnt)
 156 #define _PR_FD_WRITE_SET(_cpu)          ((_cpu)->md.md_unix.fd_write_set)
 157 #define _PR_FD_WRITE_CNT(_cpu)          ((_cpu)->md.md_unix.fd_write_cnt)
 158 #define _PR_FD_EXCEPTION_SET(_cpu)      ((_cpu)->md.md_unix.fd_exception_set)
 159 #define _PR_FD_EXCEPTION_CNT(_cpu)      ((_cpu)->md.md_unix.fd_exception_cnt)
 160 #define _PR_IOQ_TIMEOUT(_cpu)           ((_cpu)->md.md_unix.ioq_timeout)
 161 #define _PR_IOQ_MAX_OSFD(_cpu)          ((_cpu)->md.md_unix.ioq_max_osfd)
 162 #define _PR_IOQ_OSFD_CNT(_cpu)          ((_cpu)->md.md_unix.ioq_osfd_cnt)
 163 #define _PR_IOQ_POLLFDS(_cpu)           ((_cpu)->md.md_unix.ioq_pollfds)
 164 #define _PR_IOQ_POLLFDS_SIZE(_cpu)      ((_cpu)->md.md_unix.ioq_pollfds_size)
 165
 166 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
 167
 168 struct _MDCPU {
 169         struct _MDCPU_Unix md_unix;
 170 };
 171
 172 #define _MD_INIT_LOCKS()
 173 #define _MD_NEW_LOCK(lock) PR_SUCCESS
 174 #define _MD_FREE_LOCK(lock)
 175 #define _MD_LOCK(lock)
 176 #define _MD_UNLOCK(lock)
 177 #define _MD_INIT_IO()
 178 #define _MD_IOQ_LOCK()
 179 #define _MD_IOQ_UNLOCK()
 180
 181 extern PRStatus _MD_InitializeThread(PRThread *thread);
 182
 183 #define _MD_INIT_RUNNING_CPU(cpu)       _MD_unix_init_running_cpu(cpu)
 184 #define _MD_INIT_THREAD                 _MD_InitializeThread
 185 #define _MD_EXIT_THREAD(thread)
 186 #define _MD_SUSPEND_THREAD(thread)      _MD_suspend_thread
 187 #define _MD_RESUME_THREAD(thread)       _MD_resume_thread
 188 #define _MD_CLEAN_THREAD(_thread)
 189
 190 extern PRStatus _MD_CREATE_THREAD(
 191     PRThread *thread,
 192     void (*start) (void *),
 193     PRThreadPriority priority,
 194     PRThreadScope scope,
 195     PRThreadState state,
 196     PRUint32 stackSize);
 197 extern void _MD_SET_PRIORITY(struct _MDThread *thread, PRUintn newPri);
 198 extern PRStatus _MD_WAIT(PRThread *, PRIntervalTime timeout);
 199 extern PRStatus _MD_WAKEUP_WAITER(PRThread *);
 200 extern void _MD_YIELD(void);
 201
 202 #endif /* ! _PR_PTHREADS */
 203
 204 #define _MD_EARLY_INIT          _MD_EarlyInit
 205 #define _MD_FINAL_INIT                  _PR_UnixInit
 206 #define _MD_GET_INTERVAL        _PR_UNIX_GetInterval
 207 #define _MD_INTERVAL_PER_SEC    _PR_UNIX_TicksPerSecond
 208
 209 extern void             _MD_EarlyInit(void);
 210 extern PRIntervalTime   _PR_UNIX_GetInterval(void);
 211 extern PRIntervalTime   _PR_UNIX_TicksPerSecond(void);
 212
 213 /*
 214  * We wrapped the select() call.  _MD_SELECT refers to the built-in,
 215  * unwrapped version.
 216  */
 217 #define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)
 218
 219 /* For writev() */
 220 #include <sys/uio.h>
 221
 222 #endif /* nspr_rhapsody_defs_h___ */