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_qnx.h
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is the Netscape Portable Runtime (NSPR).
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1998-2000
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either the GNU General Public License Version 2 or later (the "GPL"), or
00026  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00027  * in which case the provisions of the GPL or the LGPL are applicable instead
00028  * of those above. If you wish to allow use of your version of this file only
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00030  * use your version of this file under the terms of the MPL, indicate your
00031  * decision by deleting the provisions above and replace them with the notice
00032  * and other provisions required by the GPL or the LGPL. If you do not delete
00033  * the provisions above, a recipient may use your version of this file under
00034  * the terms of any one of the MPL, the GPL or the LGPL.
00035  *
00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 #ifndef nspr_qnx_defs_h___
00039 #define nspr_qnx_defs_h___
00040 
00041 /*
00042 ** Internal configuration macros
00043 */
00044 #define PR_LINKER_ARCH             "qnx"
00045 #define _PR_SI_SYSNAME             "QNX"
00046 #define _PR_SI_ARCHITECTURE "x86"
00047 #define PR_DLL_SUFFIX              ".so"
00048 
00049 #define _PR_VMBASE          0x30000000
00050 #define _PR_STACK_VMBASE    0x50000000
00051 #define _MD_DEFAULT_STACK_SIZE     65536L
00052 #define _MD_MMAP_FLAGS             MAP_PRIVATE
00053 
00054 #ifndef       HAVE_WEAK_IO_SYMBOLS
00055 #define       HAVE_WEAK_IO_SYMBOLS
00056 #endif
00057 
00058 #undef _PR_POLL_AVAILABLE
00059 #undef _PR_USE_POLL
00060 #define _PR_HAVE_SOCKADDR_LEN
00061 #define HAVE_BSD_FLOCK
00062 #define _PR_NO_LARGE_FILES
00063 #define _PR_STAT_HAS_ONLY_ST_ATIME
00064 
00065 #include <sys/select.h>
00066 
00067 #undef  HAVE_STACK_GROWING_UP
00068 #undef HAVE_DLL
00069 #undef USE_DLFCN
00070 #define NEED_STRFTIME_LOCK
00071 #define NEED_TIME_R
00072 #define _PR_NEED_STRCASECMP
00073 
00074 #ifndef HAVE_STRERROR
00075 #define HAVE_STRERROR
00076 #endif
00077 
00078 #define USE_SETJMP
00079 
00080 #include <setjmp.h>
00081 
00082 #define _SETJMP                    setjmp
00083 #define _LONGJMP            longjmp
00084 #define _PR_CONTEXT_TYPE    jmp_buf
00085 #define _PR_NUM_GCREGS             _JBLEN
00086 #define _MD_GET_SP(_t)             (_t)->md.context[7]
00087 
00088 #define CONTEXT(_th)        ((_th)->md.context)
00089 
00090 /*
00091 ** Initialize the thread context preparing it to execute _main.
00092 */
00093 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status)   \
00094 {                                                \
00095     *status = PR_TRUE;                                  \
00096     if(_SETJMP(CONTEXT(_thread))) (*_main)();           \
00097     _MD_GET_SP(_thread) = (int) ((_sp) - 128);          \
00098 }
00099 
00100 #define _MD_SWITCH_CONTEXT(_thread)       \
00101     if (!_SETJMP(CONTEXT(_thread))) {     \
00102        (_thread)->md.errcode = errno;     \
00103        _PR_Schedule();                    \
00104     }
00105 
00106 /*
00107 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
00108 */
00109 #define _MD_RESTORE_CONTEXT(_thread)      \
00110 {                                  \
00111     errno = (_thread)->md.errcode; \
00112     _MD_SET_CURRENT_THREAD(_thread);      \
00113     _LONGJMP(CONTEXT(_thread), 1); \
00114 }
00115 
00116 /*
00117 ** Machine-dependent (MD) data structures.
00118 */
00119 struct _MDThread {
00120     _PR_CONTEXT_TYPE context;
00121     int id;
00122     int errcode;
00123 };
00124 
00125 struct _MDThreadStack {
00126     PRInt8 notused;
00127 };
00128 
00129 struct _MDLock {
00130     PRInt8 notused;
00131 };
00132 
00133 struct _MDSemaphore {
00134     PRInt8 notused;
00135 };
00136 
00137 struct _MDCVar {
00138     PRInt8 notused;
00139 };
00140 
00141 struct _MDSegment {
00142     PRInt8 notused;
00143 };
00144 
00145 /*
00146 ** md-specific cpu structure field
00147 */
00148 #define _PR_MD_MAX_OSFD            FD_SETSIZE
00149 
00150 struct _MDCPU_Unix {
00151     PRCList ioQ;
00152     PRUint32 ioq_timeout;
00153     PRInt32 ioq_max_osfd;
00154     PRInt32 ioq_osfd_cnt;
00155 #ifndef _PR_USE_POLL
00156     fd_set fd_read_set, fd_write_set, fd_exception_set;
00157     PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD], fd_write_cnt[_PR_MD_MAX_OSFD], fd_exception_cnt[_PR_MD_MAX_OSFD];
00158 #else
00159     struct pollfd *ioq_pollfds;
00160     int ioq_pollfds_size;
00161 #endif
00162 };
00163 
00164 #define _PR_IOQ(_cpu)                     ((_cpu)->md.md_unix.ioQ)
00165 #define _PR_ADD_TO_IOQ(_pq, _cpu)  PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
00166 #define _PR_FD_READ_SET(_cpu)             ((_cpu)->md.md_unix.fd_read_set)
00167 #define _PR_FD_READ_CNT(_cpu)             ((_cpu)->md.md_unix.fd_read_cnt)
00168 #define _PR_FD_WRITE_SET(_cpu)            ((_cpu)->md.md_unix.fd_write_set)
00169 #define _PR_FD_WRITE_CNT(_cpu)            ((_cpu)->md.md_unix.fd_write_cnt)
00170 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set)
00171 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt)
00172 #define _PR_IOQ_TIMEOUT(_cpu)             ((_cpu)->md.md_unix.ioq_timeout)
00173 #define _PR_IOQ_MAX_OSFD(_cpu)            ((_cpu)->md.md_unix.ioq_max_osfd)
00174 #define _PR_IOQ_OSFD_CNT(_cpu)            ((_cpu)->md.md_unix.ioq_osfd_cnt)
00175 #define _PR_IOQ_POLLFDS(_cpu)             ((_cpu)->md.md_unix.ioq_pollfds)
00176 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size)
00177 
00178 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)    32
00179 
00180 struct _MDCPU {
00181        struct _MDCPU_Unix md_unix;
00182 };
00183 
00184 #define _MD_INIT_LOCKS()
00185 #define _MD_NEW_LOCK(lock)         PR_SUCCESS
00186 #define _MD_FREE_LOCK(lock)
00187 #define _MD_LOCK(lock)
00188 #define _MD_UNLOCK(lock)
00189 #define _MD_INIT_IO()
00190 #define _MD_IOQ_LOCK()
00191 #define _MD_IOQ_UNLOCK()
00192 
00193 #define _MD_GET_INTERVAL           _PR_UNIX_GetInterval
00194 #define _MD_INTERVAL_PER_SEC              _PR_UNIX_TicksPerSecond
00195 #define _MD_EARLY_INIT                    _MD_EarlyInit
00196 #define _MD_FINAL_INIT                    _PR_UnixInit
00197 #define _MD_INIT_RUNNING_CPU(cpu)  _MD_unix_init_running_cpu(cpu)
00198 #define _MD_INIT_THREAD                   _MD_InitializeThread
00199 #define _MD_EXIT_THREAD(thread)
00200 #define       _MD_SUSPEND_THREAD(thread)
00201 #define       _MD_RESUME_THREAD(thread)
00202 #define _MD_CLEAN_THREAD(_thread)
00203 
00204 /*
00205 ** We wrapped the select() call.  _MD_SELECT refers to the built-in,
00206 ** unwrapped version.
00207 */
00208 #include <sys/time.h>
00209 #include <sys/types.h>
00210 #include <sys/select.h>
00211 #define _MD_SELECT          select
00212 
00213 #define SA_RESTART 0
00214 
00215 #endif /* nspr_qnx_defs_h___ */