_qnx.h (4767B)
1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* This Source Code Form is subject to the terms of the Mozilla Public 3 * License, v. 2.0. If a copy of the MPL was not distributed with this 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 5 6 #ifndef nspr_qnx_defs_h___ 7 #define nspr_qnx_defs_h___ 8 9 /* 10 ** Internal configuration macros 11 */ 12 #define PR_LINKER_ARCH "qnx" 13 #define _PR_SI_SYSNAME "QNX" 14 #define _PR_SI_ARCHITECTURE "x86" 15 #define PR_DLL_SUFFIX ".so" 16 17 #define _PR_VMBASE 0x30000000 18 #define _PR_STACK_VMBASE 0x50000000 19 #define _MD_DEFAULT_STACK_SIZE 65536L 20 #define _MD_MMAP_FLAGS MAP_PRIVATE 21 22 #ifndef HAVE_WEAK_IO_SYMBOLS 23 #define HAVE_WEAK_IO_SYMBOLS 24 #endif 25 26 #undef _PR_POLL_AVAILABLE 27 #undef _PR_USE_POLL 28 #define _PR_HAVE_SOCKADDR_LEN 29 #define HAVE_BSD_FLOCK 30 #define _PR_NO_LARGE_FILES 31 #define _PR_STAT_HAS_ONLY_ST_ATIME 32 33 #include <sys/select.h> 34 35 #undef HAVE_STACK_GROWING_UP 36 #undef HAVE_DLL 37 #undef USE_DLFCN 38 #define NEED_STRFTIME_LOCK 39 #define NEED_TIME_R 40 #define _PR_NEED_STRCASECMP 41 42 #ifndef HAVE_STRERROR 43 #define HAVE_STRERROR 44 #endif 45 46 #define USE_SETJMP 47 48 #include <setjmp.h> 49 50 #define _SETJMP setjmp 51 #define _LONGJMP longjmp 52 #define _PR_CONTEXT_TYPE jmp_buf 53 #define _PR_NUM_GCREGS _JBLEN 54 #define _MD_GET_SP(_t) (_t)->md.context[7] 55 56 #define CONTEXT(_th) ((_th)->md.context) 57 58 /* 59 ** Initialize the thread context preparing it to execute _main. 60 */ 61 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \ 62 { \ 63 *status = PR_TRUE; \ 64 if(_SETJMP(CONTEXT(_thread))) (*_main)(); \ 65 _MD_GET_SP(_thread) = (int) ((_sp) - 128); \ 66 } 67 68 #define _MD_SWITCH_CONTEXT(_thread) \ 69 if (!_SETJMP(CONTEXT(_thread))) { \ 70 (_thread)->md.errcode = errno; \ 71 _PR_Schedule(); \ 72 } 73 74 /* 75 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT 76 */ 77 #define _MD_RESTORE_CONTEXT(_thread) \ 78 { \ 79 errno = (_thread)->md.errcode; \ 80 _MD_SET_CURRENT_THREAD(_thread); \ 81 _LONGJMP(CONTEXT(_thread), 1); \ 82 } 83 84 /* 85 ** Machine-dependent (MD) data structures. 86 */ 87 struct _MDThread { 88 _PR_CONTEXT_TYPE context; 89 int id; 90 int errcode; 91 }; 92 93 struct _MDThreadStack { 94 PRInt8 notused; 95 }; 96 97 struct _MDLock { 98 PRInt8 notused; 99 }; 100 101 struct _MDSemaphore { 102 PRInt8 notused; 103 }; 104 105 struct _MDCVar { 106 PRInt8 notused; 107 }; 108 109 struct _MDSegment { 110 PRInt8 notused; 111 }; 112 113 /* 114 ** md-specific cpu structure field 115 */ 116 #define _PR_MD_MAX_OSFD FD_SETSIZE 117 118 struct _MDCPU_Unix { 119 PRCList ioQ; 120 PRUint32 ioq_timeout; 121 PRInt32 ioq_max_osfd; 122 PRInt32 ioq_osfd_cnt; 123 #ifndef _PR_USE_POLL 124 fd_set fd_read_set, fd_write_set, fd_exception_set; 125 PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD], fd_write_cnt[_PR_MD_MAX_OSFD], fd_exception_cnt[_PR_MD_MAX_OSFD]; 126 #else 127 struct pollfd *ioq_pollfds; 128 int ioq_pollfds_size; 129 #endif 130 }; 131 132 #define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ) 133 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu)) 134 #define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set) 135 #define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt) 136 #define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set) 137 #define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt) 138 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set) 139 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt) 140 #define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout) 141 #define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd) 142 #define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt) 143 #define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds) 144 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size) 145 146 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32 147 148 struct _MDCPU { 149 struct _MDCPU_Unix md_unix; 150 }; 151 152 #define _MD_INIT_LOCKS() 153 #define _MD_NEW_LOCK(lock) PR_SUCCESS 154 #define _MD_FREE_LOCK(lock) 155 #define _MD_LOCK(lock) 156 #define _MD_UNLOCK(lock) 157 #define _MD_INIT_IO() 158 #define _MD_IOQ_LOCK() 159 #define _MD_IOQ_UNLOCK() 160 161 #define _MD_INTERVAL_USE_GTOD 162 #define _MD_EARLY_INIT _MD_EarlyInit 163 #define _MD_FINAL_INIT _PR_UnixInit 164 #define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu) 165 #define _MD_INIT_THREAD _MD_InitializeThread 166 #define _MD_EXIT_THREAD(thread) 167 #define _MD_SUSPEND_THREAD(thread) 168 #define _MD_RESUME_THREAD(thread) 169 #define _MD_CLEAN_THREAD(_thread) 170 171 /* 172 ** We wrapped the select() call. _MD_SELECT refers to the built-in, 173 ** unwrapped version. 174 */ 175 #include <sys/time.h> 176 #include <sys/types.h> 177 #include <sys/select.h> 178 #define _MD_SELECT select 179 180 #define SA_RESTART 0 181 182 #endif /* nspr_qnx_defs_h___ */