third_party/npapi/npspy/extern/nspr/md/_nec.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_nec_defs_h___
  36 #define nspr_nec_defs_h___
  37
  38 /*
  39  * Internal configuration macros
  40  */
  41
  42 #define PR_LINKER_ARCH  "nec"
  43 #define _PR_SI_SYSNAME "NEC"
  44 #define _PR_SI_ARCHITECTURE "mips"
  45 #define PR_DLL_SUFFIX           ".so"
  46
  47 #define _PR_STACK_VMBASE        0x50000000
  48 #define _MD_DEFAULT_STACK_SIZE  65536L
  49 #define _MD_MMAP_FLAGS          MAP_PRIVATE
  50
  51 #undef  HAVE_STACK_GROWING_UP
  52 #define HAVE_DLL
  53 #define USE_DLFCN
  54 #define NEED_TIME_R
  55 #define NEED_STRFTIME_LOCK
  56 #define _PR_POLL_AVAILABLE
  57 #define _PR_USE_POLL
  58 #define _PR_NO_LARGE_FILES
  59 #define _PR_STAT_HAS_ST_ATIM_UNION
  60
  61 #include <ucontext.h>
  62 #include <sys/regset.h>
  63
  64 #define PR_NUM_GCREGS   NGREG
  65 #define PR_CONTEXT_TYPE ucontext_t
  66
  67 #define CONTEXT(_thread) (&(_thread)->md.context)
  68
  69 #define _MD_GET_SP(_t)    (_t)->md.context.uc_mcontext.gregs[CXT_SP]
  70
  71 /*
  72 ** Initialize the thread context preparing it to execute "e(o,a)"
  73 */
  74 #define _MD_INIT_CONTEXT(thread, _sp, _main, status)               \
  75 {                                                                   \
  76     *status = PR_TRUE; \
  77     getcontext(CONTEXT(thread));                                    \
  78     CONTEXT(thread)->uc_stack.ss_sp = (char*) (thread)->stack->stackBottom; \
  79     CONTEXT(thread)->uc_stack.ss_size = (thread)->stack->stackSize; \
  80     _MD_GET_SP(thread) = (greg_t) _sp - 64;             \
  81     makecontext(CONTEXT(thread), _main, 0);              \
  82 }
  83
  84 #define _MD_SWITCH_CONTEXT(_thread)      \
  85     if (!getcontext(CONTEXT(_thread))) { \
  86         (_thread)->md.errcode = errno;      \
  87         _PR_Schedule();                  \
  88     }
  89
  90 /*
  91 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
  92 */
  93 #define _MD_RESTORE_CONTEXT(_thread)   \
  94 {                                      \
  95     ucontext_t *uc = CONTEXT(_thread); \
  96     uc->uc_mcontext.gregs[CXT_V0] = 1; \
  97     uc->uc_mcontext.gregs[CXT_A3] = 0; \
  98     errno = (_thread)->md.errcode;     \
  99     _MD_SET_CURRENT_THREAD(_thread);   \
 100     setcontext(uc);                    \
 101 }
 102
 103 /* Machine-dependent (MD) data structures */
 104
 105 struct _MDThread {
 106     PR_CONTEXT_TYPE context;
 107     int id;
 108     int errcode;
 109 };
 110
 111 struct _MDThreadStack {
 112     PRInt8 notused;
 113 };
 114
 115 struct _MDLock {
 116     PRInt8 notused;
 117 };
 118
 119 struct _MDSemaphore {
 120     PRInt8 notused;
 121 };
 122
 123 struct _MDCVar {
 124     PRInt8 notused;
 125 };
 126
 127 struct _MDSegment {
 128     PRInt8 notused;
 129 };
 130
 131 /*
 132  * md-specific cpu structure field
 133  */
 134 #define _PR_MD_MAX_OSFD FD_SETSIZE
 135
 136 struct _MDCPU_Unix {
 137     PRCList ioQ;
 138     PRUint32 ioq_timeout;
 139     PRInt32 ioq_max_osfd;
 140     PRInt32 ioq_osfd_cnt;
 141 #ifndef _PR_USE_POLL
 142     fd_set fd_read_set, fd_write_set, fd_exception_set;
 143     PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
 144                                 fd_exception_cnt[_PR_MD_MAX_OSFD];
 145 #else
 146         struct pollfd *ioq_pollfds;
 147         int ioq_pollfds_size;
 148 #endif  /* _PR_USE_POLL */
 149 };
 150
 151 #define _PR_IOQ(_cpu)                   ((_cpu)->md.md_unix.ioQ)
 152 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
 153 #define _PR_FD_READ_SET(_cpu)           ((_cpu)->md.md_unix.fd_read_set)
 154 #define _PR_FD_READ_CNT(_cpu)           ((_cpu)->md.md_unix.fd_read_cnt)
 155 #define _PR_FD_WRITE_SET(_cpu)          ((_cpu)->md.md_unix.fd_write_set)
 156 #define _PR_FD_WRITE_CNT(_cpu)          ((_cpu)->md.md_unix.fd_write_cnt)
 157 #define _PR_FD_EXCEPTION_SET(_cpu)      ((_cpu)->md.md_unix.fd_exception_set)
 158 #define _PR_FD_EXCEPTION_CNT(_cpu)      ((_cpu)->md.md_unix.fd_exception_cnt)
 159 #define _PR_IOQ_TIMEOUT(_cpu)           ((_cpu)->md.md_unix.ioq_timeout)
 160 #define _PR_IOQ_MAX_OSFD(_cpu)          ((_cpu)->md.md_unix.ioq_max_osfd)
 161 #define _PR_IOQ_OSFD_CNT(_cpu)          ((_cpu)->md.md_unix.ioq_osfd_cnt)
 162 #define _PR_IOQ_POLLFDS(_cpu)           ((_cpu)->md.md_unix.ioq_pollfds)
 163 #define _PR_IOQ_POLLFDS_SIZE(_cpu)      ((_cpu)->md.md_unix.ioq_pollfds_size)
 164
 165 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
 166
 167 struct _MDCPU {
 168         struct _MDCPU_Unix md_unix;
 169 };
 170
 171 #define _MD_INIT_LOCKS()
 172 #define _MD_NEW_LOCK(lock) PR_SUCCESS
 173 #define _MD_FREE_LOCK(lock)
 174 #define _MD_LOCK(lock)
 175 #define _MD_UNLOCK(lock)
 176 #define _MD_INIT_IO()
 177 #define _MD_IOQ_LOCK()
 178 #define _MD_IOQ_UNLOCK()
 179
 180 #define _MD_EARLY_INIT          _MD_EarlyInit
 181 #define _MD_FINAL_INIT                  _PR_UnixInit
 182 #define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
 183 #define _MD_INIT_THREAD         _MD_InitializeThread
 184 #define _MD_EXIT_THREAD(thread)
 185 #define _MD_CLEAN_THREAD(_thread)
 186
 187 #define _MD_SELECT _select
 188 #define _MD_POLL _poll
 189
 190 #define _MD_GET_INTERVAL                  _PR_UNIX_GetInterval
 191 #define _MD_INTERVAL_PER_SEC              _PR_UNIX_TicksPerSecond
 192
 193 #endif /* nspr_nec_defs_h___ */