_aix.h (6242B)
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_aix_defs_h___ 7 #define nspr_aix_defs_h___ 8 9 #include <sys/types.h> 10 #if defined(_PR_PTHREADS) || defined(PTHREADS_USER) 11 #include <pthread.h> 12 #endif 13 14 /* 15 * To pick up fd_set and the poll events. 16 */ 17 #include <sys/select.h> 18 #include <sys/poll.h> 19 20 /* 21 * Internal configuration macros 22 */ 23 24 #define PR_LINKER_ARCH "aix" 25 #define _PR_SI_SYSNAME "AIX" 26 #define _PR_SI_ARCHITECTURE "rs6000" 27 #define PR_DLL_SUFFIX ".so" 28 29 #define _PR_VMBASE 0x30000000 30 #define _PR_STACK_VMBASE 0x50000000 31 #define _MD_DEFAULT_STACK_SIZE (2*65536L) 32 #define _MD_MINIMUM_STACK_SIZE (2*65536L) 33 #define _MD_MMAP_FLAGS MAP_PRIVATE 34 35 #define NEED_TIME_R 36 #undef HAVE_STACK_GROWING_UP 37 #undef HAVE_WEAK_IO_SYMBOLS 38 #undef HAVE_WEAK_MALLOC_SYMBOLS 39 #define HAVE_DLL 40 #define USE_DLFCN 41 #define _PR_HAVE_SOCKADDR_LEN 42 #define _PR_POLL_AVAILABLE 43 #define _PR_USE_POLL 44 #define _PR_STAT_HAS_ONLY_ST_ATIME 45 #ifdef _PR_INET6 46 #define _PR_HAVE_INET_NTOP 47 #define _PR_HAVE_GETHOSTBYNAME2 48 #ifdef _AIX51 /* AIX 4.3.3 does not have AI_NUMERICHOST. */ 49 #define _PR_HAVE_GETADDRINFO 50 #endif 51 #endif 52 #define _PR_HAVE_SYSV_SEMAPHORES 53 #define PR_HAVE_SYSV_NAMED_SHARED_MEMORY 54 #define _PR_ACCEPT_INHERIT_NONBLOCK 55 56 /* Timer operations */ 57 #if defined(AIX_TIMERS) 58 #define _MD_INTERVAL_INIT() 59 60 extern PRIntervalTime _MD_AixGetInterval(void); 61 #define _MD_GET_INTERVAL _MD_AixGetInterval 62 63 extern PRIntervalTime _MD_AixIntervalPerSec(void); 64 #define _MD_INTERVAL_PER_SEC _MD_AixIntervalPerSec 65 66 #else /* defined(AIX_TIMERS) */ 67 #define _MD_INTERVAL_USE_GTOD 68 #endif /* defined(AIX_TIMERS) */ 69 70 #ifdef AIX_HAVE_ATOMIC_OP_H 71 /* The atomic operations */ 72 #include <sys/atomic_op.h> 73 #define _PR_HAVE_ATOMIC_OPS 74 #ifndef IS_64 75 #define _PR_HAVE_ATOMIC_CAS 76 #endif 77 #define _MD_INIT_ATOMIC() 78 #define _MD_ATOMIC_INCREMENT(val) ((PRInt32)fetch_and_add((atomic_p)val, 1) + 1) 79 #define _MD_ATOMIC_ADD(ptr, val) ((PRInt32)fetch_and_add((atomic_p)ptr, val) + val) 80 #define _MD_ATOMIC_DECREMENT(val) ((PRInt32)fetch_and_add((atomic_p)val, -1) - 1) 81 #define _MD_ATOMIC_SET(val, newval) _AIX_AtomicSet(val, newval) 82 #endif /* AIX_HAVE_ATOMIC_OP_H */ 83 84 #define USE_SETJMP 85 86 #include <setjmp.h> 87 88 #define _MD_GET_SP(_t) (_t)->md.jb[3] 89 #define _MD_SET_THR_SP(_t, _sp) ((_t)->md.jb[3] = (int) (_sp - 2 * 64)) 90 #define PR_NUM_GCREGS _JBLEN 91 92 #define CONTEXT(_th) ((_th)->md.jb) 93 #define SAVE_CONTEXT(_th) _setjmp(CONTEXT(_th)) 94 #define GOTO_CONTEXT(_th) _longjmp(CONTEXT(_th), 1) 95 96 #ifdef PTHREADS_USER 97 #include "_nspr_pthread.h" 98 #else 99 100 /* 101 ** Initialize the thread context preparing it to execute _main. 102 */ 103 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \ 104 PR_BEGIN_MACRO \ 105 *status = PR_TRUE; \ 106 if (setjmp(CONTEXT(_thread))) { \ 107 (*_main)(); \ 108 } \ 109 _MD_GET_SP(_thread) = (int) (_sp - 2 * 64); \ 110 PR_END_MACRO 111 112 #define _MD_SWITCH_CONTEXT(_thread) \ 113 if (!setjmp(CONTEXT(_thread))) { \ 114 (_thread)->md.errcode = errno; \ 115 _PR_Schedule(); \ 116 } 117 118 /* 119 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT 120 */ 121 #define _MD_RESTORE_CONTEXT(_thread) \ 122 { \ 123 errno = (_thread)->md.errcode; \ 124 _MD_SET_CURRENT_THREAD(_thread); \ 125 longjmp(CONTEXT(_thread), 1); \ 126 } 127 128 /* Machine-dependent (MD) data structures */ 129 130 struct _MDThread { 131 jmp_buf jb; 132 int id; 133 int errcode; 134 }; 135 136 struct _MDThreadStack { 137 PRInt8 notused; 138 }; 139 140 struct _MDLock { 141 PRInt8 notused; 142 }; 143 144 struct _MDSemaphore { 145 PRInt8 notused; 146 }; 147 148 struct _MDCVar { 149 PRInt8 notused; 150 }; 151 152 struct _MDSegment { 153 PRInt8 notused; 154 }; 155 156 /* 157 * md-specific cpu structure field 158 */ 159 #define _PR_MD_MAX_OSFD FD_SETSIZE 160 161 struct _MDCPU_Unix { 162 PRCList ioQ; 163 PRUint32 ioq_timeout; 164 PRInt32 ioq_max_osfd; 165 PRInt32 ioq_osfd_cnt; 166 #ifndef _PR_USE_POLL 167 fd_set fd_read_set, fd_write_set, fd_exception_set; 168 PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD], 169 fd_exception_cnt[_PR_MD_MAX_OSFD]; 170 #else 171 struct pollfd *ioq_pollfds; 172 int ioq_pollfds_size; 173 #endif /* _PR_USE_POLL */ 174 }; 175 176 #define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ) 177 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu)) 178 #define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set) 179 #define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt) 180 #define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set) 181 #define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt) 182 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set) 183 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt) 184 #define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout) 185 #define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd) 186 #define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt) 187 #define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds) 188 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size) 189 190 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32 191 192 struct _MDCPU { 193 struct _MDCPU_Unix md_unix; 194 }; 195 196 #if !defined(_PR_PTHREADS) 197 #define _MD_INIT_LOCKS() 198 #endif 199 200 #define _MD_NEW_LOCK(lock) PR_SUCCESS 201 #define _MD_FREE_LOCK(lock) 202 #define _MD_LOCK(lock) 203 #define _MD_UNLOCK(lock) 204 #define _MD_INIT_IO() 205 #define _MD_IOQ_LOCK() 206 #define _MD_IOQ_UNLOCK() 207 208 #define _MD_EARLY_INIT _MD_EarlyInit 209 #define _MD_FINAL_INIT _PR_UnixInit 210 #define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu) 211 #define _MD_INIT_THREAD _MD_InitializeThread 212 #define _MD_EXIT_THREAD(thread) 213 #define _MD_SUSPEND_THREAD(thread) 214 #define _MD_RESUME_THREAD(thread) 215 #define _MD_CLEAN_THREAD(_thread) 216 #endif /* PTHREADS_USER */ 217 218 #ifdef AIX_RENAME_SELECT 219 #define _MD_SELECT select 220 #define _MD_POLL poll 221 #endif 222 223 extern void _MD_aix_map_sendfile_error(int err); 224 225 #endif /* nspr_aix_defs_h___ */