_riscos.h (4618B)
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_riscos_defs_h___ 7 #define nspr_riscos_defs_h___ 8 9 /* 10 ** Internal configuration macros 11 */ 12 #define PR_LINKER_ARCH "riscos" 13 #define _PR_SI_SYSNAME "RISCOS" 14 #define _PR_SI_ARCHITECTURE "arm" 15 #define PR_DLL_SUFFIX ".so" 16 17 #define _PR_POLL_AVAILABLE 18 #define _PR_USE_POLL 19 #define _PR_HAVE_SOCKADDR_LEN 20 #undef HAVE_BSD_FLOCK 21 #define _PR_NO_LARGE_FILES 22 #define _PR_STAT_HAS_ONLY_ST_ATIME 23 #define _PR_HAVE_POSIX_SEMAPHORES 24 25 #include <sys/select.h> 26 #include <sys/poll.h> 27 #include <kernel.h> 28 29 30 #undef HAVE_STACK_GROWING_UP 31 #define HAVE_DLL 32 #define USE_DLFCN 33 #define NEED_STRFTIME_LOCK 34 #define NEED_TIME_R 35 #define PT_NO_SIGTIMEDWAIT 36 37 #ifndef HAVE_STRERROR 38 #define HAVE_STRERROR 39 #endif 40 41 #define USE_SETJMP 42 43 #include <setjmp.h> 44 45 #define _SETJMP setjmp 46 #define _LONGJMP longjmp 47 #define _PR_CONTEXT_TYPE jmp_buf 48 #define _PR_NUM_GCREGS _JBLEN 49 #define _MD_GET_SP(_t) (_t)->md.context[7] 50 51 #define CONTEXT(_th) ((_th)->md.context) 52 53 54 /* 55 ** Initialize the thread context preparing it to execute _main. 56 */ 57 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \ 58 { \ 59 *status = PR_TRUE; \ 60 if(_SETJMP(CONTEXT(_thread))) (*_main)(); \ 61 _MD_GET_SP(_thread) = (int) ((_sp) - 128); \ 62 } 63 64 #define _MD_SWITCH_CONTEXT(_thread) \ 65 if (!_SETJMP(CONTEXT(_thread))) { \ 66 (_thread)->md.errcode = errno; \ 67 _PR_Schedule(); \ 68 } 69 70 /* 71 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT 72 */ 73 #define _MD_RESTORE_CONTEXT(_thread) \ 74 { \ 75 errno = (_thread)->md.errcode; \ 76 _MD_SET_CURRENT_THREAD(_thread); \ 77 _LONGJMP(CONTEXT(_thread), 1); \ 78 } 79 80 /* 81 ** Machine-dependent (MD) data structures. 82 */ 83 struct _MDThread { 84 _PR_CONTEXT_TYPE context; 85 int id; 86 int errcode; 87 }; 88 89 struct _MDThreadStack { 90 PRInt8 notused; 91 }; 92 93 struct _MDLock { 94 PRInt8 notused; 95 }; 96 97 struct _MDSemaphore { 98 PRInt8 notused; 99 }; 100 101 struct _MDCVar { 102 PRInt8 notused; 103 }; 104 105 struct _MDSegment { 106 PRInt8 notused; 107 }; 108 109 /* 110 ** md-specific cpu structure field 111 */ 112 #define _PR_MD_MAX_OSFD FD_SETSIZE 113 114 struct _MDCPU_Unix { 115 PRCList ioQ; 116 PRUint32 ioq_timeout; 117 PRInt32 ioq_max_osfd; 118 PRInt32 ioq_osfd_cnt; 119 #ifndef _PR_USE_POLL 120 fd_set fd_read_set, fd_write_set, fd_exception_set; 121 PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD], fd_write_cnt[_PR_MD_MAX_OSFD], fd_exception_cnt[_PR_MD_MAX_OSFD]; 122 #else 123 struct pollfd *ioq_pollfds; 124 int ioq_pollfds_size; 125 #endif 126 }; 127 128 #define _PR_IOQ(_cpu) /* */ ((_cpu)->md.md_unix.ioQ) 129 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu)) 130 #define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set) 131 #define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt) 132 #define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set) 133 #define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt) 134 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set) 135 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt) 136 #define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout) 137 #define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd) 138 #define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt) 139 #define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds) 140 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size) 141 142 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32 143 144 struct _MDCPU { 145 struct _MDCPU_Unix md_unix; 146 }; 147 148 #define _MD_INIT_LOCKS() 149 #define _MD_NEW_LOCK(lock) PR_SUCCESS 150 #define _MD_FREE_LOCK(lock) 151 #define _MD_LOCK(lock) 152 #define _MD_UNLOCK(lock) 153 #define _MD_INIT_IO() 154 #define _MD_IOQ_LOCK() 155 #define _MD_IOQ_UNLOCK() 156 157 #define _MD_INTERVAL_USE_GTOD 158 #define _MD_EARLY_INIT _MD_EarlyInit 159 #define _MD_FINAL_INIT _PR_UnixInit 160 #define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu) 161 #define _MD_INIT_THREAD _MD_InitializeThread 162 #define _MD_EXIT_THREAD(thread) 163 #define _MD_SUSPEND_THREAD(thread) 164 #define _MD_RESUME_THREAD(thread) 165 #define _MD_CLEAN_THREAD(_thread) 166 167 /* 168 ** We wrapped the select() call. _MD_SELECT refers to the built-in, 169 ** unwrapped version. 170 */ 171 #include <sys/time.h> 172 #include <sys/types.h> 173 #include <sys/select.h> 174 #define _MD_SELECT select 175 176 #endif /* nspr_riscos_defs_h___ */