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nsprpub/pr/include/md/_aix.h@44a2da4a2ab2 (annotated)

nsprpub/pr/include/md/_aix.h

Fri, 16 Jan 2015 04:50:19 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Fri, 16 Jan 2015 04:50:19 +0100
branch
TOR_BUG_9701
changeset 13
44a2da4a2ab2
permissions
-rw-r--r--

Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32

michael@0 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 #ifndef nspr_aix_defs_h___
michael@0 7 #define nspr_aix_defs_h___
michael@0 8
michael@0 9 #include <sys/types.h>
michael@0 10 #if defined(_PR_PTHREADS) || defined(PTHREADS_USER)
michael@0 11 #include <pthread.h>
michael@0 12 #endif
michael@0 13
michael@0 14 /*
michael@0 15 * To pick up fd_set and the poll events.
michael@0 16 */
michael@0 17 #include <sys/select.h>
michael@0 18 #include <sys/poll.h>
michael@0 19
michael@0 20 /*
michael@0 21 * Internal configuration macros
michael@0 22 */
michael@0 23
michael@0 24 #define PR_LINKER_ARCH "aix"
michael@0 25 #define _PR_SI_SYSNAME "AIX"
michael@0 26 #define _PR_SI_ARCHITECTURE "rs6000"
michael@0 27 #define PR_DLL_SUFFIX ".so"
michael@0 28
michael@0 29 #define _PR_VMBASE 0x30000000
michael@0 30 #define _PR_STACK_VMBASE 0x50000000
michael@0 31 #define _MD_DEFAULT_STACK_SIZE (2*65536L)
michael@0 32 #define _MD_MINIMUM_STACK_SIZE (2*65536L)
michael@0 33 #define _MD_MMAP_FLAGS MAP_PRIVATE
michael@0 34
michael@0 35 #define NEED_TIME_R
michael@0 36 #undef HAVE_STACK_GROWING_UP
michael@0 37 #undef HAVE_WEAK_IO_SYMBOLS
michael@0 38 #undef HAVE_WEAK_MALLOC_SYMBOLS
michael@0 39 #define HAVE_DLL
michael@0 40 #define USE_DLFCN
michael@0 41 #define _PR_HAVE_SOCKADDR_LEN
michael@0 42 #define _PR_POLL_AVAILABLE
michael@0 43 #define _PR_USE_POLL
michael@0 44 #define _PR_STAT_HAS_ONLY_ST_ATIME
michael@0 45 #ifdef _PR_INET6
michael@0 46 #define _PR_HAVE_INET_NTOP
michael@0 47 #define _PR_HAVE_GETHOSTBYNAME2
michael@0 48 #ifdef _AIX51 /* AIX 4.3.3 does not have AI_NUMERICHOST. */
michael@0 49 #define _PR_HAVE_GETADDRINFO
michael@0 50 #endif
michael@0 51 #endif
michael@0 52 #define _PR_HAVE_SYSV_SEMAPHORES
michael@0 53 #define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
michael@0 54 #define _PR_ACCEPT_INHERIT_NONBLOCK
michael@0 55
michael@0 56 /* Timer operations */
michael@0 57 #if defined(AIX_TIMERS)
michael@0 58 #define _MD_INTERVAL_INIT()
michael@0 59
michael@0 60 extern PRIntervalTime _MD_AixGetInterval(void);
michael@0 61 #define _MD_GET_INTERVAL _MD_AixGetInterval
michael@0 62
michael@0 63 extern PRIntervalTime _MD_AixIntervalPerSec(void);
michael@0 64 #define _MD_INTERVAL_PER_SEC _MD_AixIntervalPerSec
michael@0 65
michael@0 66 #else /* defined(AIX_TIMERS) */
michael@0 67 #define _MD_INTERVAL_USE_GTOD
michael@0 68 #endif /* defined(AIX_TIMERS) */
michael@0 69
michael@0 70 #ifdef AIX_HAVE_ATOMIC_OP_H
michael@0 71 /* The atomic operations */
michael@0 72 #include <sys/atomic_op.h>
michael@0 73 #define _PR_HAVE_ATOMIC_OPS
michael@0 74 #ifndef IS_64
michael@0 75 #define _PR_HAVE_ATOMIC_CAS
michael@0 76 #endif
michael@0 77 #define _MD_INIT_ATOMIC()
michael@0 78 #define _MD_ATOMIC_INCREMENT(val) ((PRInt32)fetch_and_add((atomic_p)val, 1) + 1)
michael@0 79 #define _MD_ATOMIC_ADD(ptr, val) ((PRInt32)fetch_and_add((atomic_p)ptr, val) + val)
michael@0 80 #define _MD_ATOMIC_DECREMENT(val) ((PRInt32)fetch_and_add((atomic_p)val, -1) - 1)
michael@0 81 #define _MD_ATOMIC_SET(val, newval) _AIX_AtomicSet(val, newval)
michael@0 82 #endif /* AIX_HAVE_ATOMIC_OP_H */
michael@0 83
michael@0 84 #define USE_SETJMP
michael@0 85
michael@0 86 #include <setjmp.h>
michael@0 87
michael@0 88 #define _MD_GET_SP(_t) (_t)->md.jb[3]
michael@0 89 #define _MD_SET_THR_SP(_t, _sp) ((_t)->md.jb[3] = (int) (_sp - 2 * 64))
michael@0 90 #define PR_NUM_GCREGS _JBLEN
michael@0 91
michael@0 92 #define CONTEXT(_th) ((_th)->md.jb)
michael@0 93 #define SAVE_CONTEXT(_th) _setjmp(CONTEXT(_th))
michael@0 94 #define GOTO_CONTEXT(_th) _longjmp(CONTEXT(_th), 1)
michael@0 95
michael@0 96 #ifdef PTHREADS_USER
michael@0 97 #include "_nspr_pthread.h"
michael@0 98 #else
michael@0 99
michael@0 100 /*
michael@0 101 ** Initialize the thread context preparing it to execute _main.
michael@0 102 */
michael@0 103 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
michael@0 104 PR_BEGIN_MACRO \
michael@0 105 *status = PR_TRUE; \
michael@0 106 if (setjmp(CONTEXT(_thread))) { \
michael@0 107 (*_main)(); \
michael@0 108 } \
michael@0 109 _MD_GET_SP(_thread) = (int) (_sp - 2 * 64); \
michael@0 110 PR_END_MACRO
michael@0 111
michael@0 112 #define _MD_SWITCH_CONTEXT(_thread) \
michael@0 113 if (!setjmp(CONTEXT(_thread))) { \
michael@0 114 (_thread)->md.errcode = errno; \
michael@0 115 _PR_Schedule(); \
michael@0 116 }
michael@0 117
michael@0 118 /*
michael@0 119 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
michael@0 120 */
michael@0 121 #define _MD_RESTORE_CONTEXT(_thread) \
michael@0 122 { \
michael@0 123 errno = (_thread)->md.errcode; \
michael@0 124 _MD_SET_CURRENT_THREAD(_thread); \
michael@0 125 longjmp(CONTEXT(_thread), 1); \
michael@0 126 }
michael@0 127
michael@0 128 /* Machine-dependent (MD) data structures */
michael@0 129
michael@0 130 struct _MDThread {
michael@0 131 jmp_buf jb;
michael@0 132 int id;
michael@0 133 int errcode;
michael@0 134 };
michael@0 135
michael@0 136 struct _MDThreadStack {
michael@0 137 PRInt8 notused;
michael@0 138 };
michael@0 139
michael@0 140 struct _MDLock {
michael@0 141 PRInt8 notused;
michael@0 142 };
michael@0 143
michael@0 144 struct _MDSemaphore {
michael@0 145 PRInt8 notused;
michael@0 146 };
michael@0 147
michael@0 148 struct _MDCVar {
michael@0 149 PRInt8 notused;
michael@0 150 };
michael@0 151
michael@0 152 struct _MDSegment {
michael@0 153 PRInt8 notused;
michael@0 154 };
michael@0 155
michael@0 156 /*
michael@0 157 * md-specific cpu structure field
michael@0 158 */
michael@0 159 #define _PR_MD_MAX_OSFD FD_SETSIZE
michael@0 160
michael@0 161 struct _MDCPU_Unix {
michael@0 162 PRCList ioQ;
michael@0 163 PRUint32 ioq_timeout;
michael@0 164 PRInt32 ioq_max_osfd;
michael@0 165 PRInt32 ioq_osfd_cnt;
michael@0 166 #ifndef _PR_USE_POLL
michael@0 167 fd_set fd_read_set, fd_write_set, fd_exception_set;
michael@0 168 PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
michael@0 169 fd_exception_cnt[_PR_MD_MAX_OSFD];
michael@0 170 #else
michael@0 171 struct pollfd *ioq_pollfds;
michael@0 172 int ioq_pollfds_size;
michael@0 173 #endif /* _PR_USE_POLL */
michael@0 174 };
michael@0 175
michael@0 176 #define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ)
michael@0 177 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
michael@0 178 #define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set)
michael@0 179 #define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt)
michael@0 180 #define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set)
michael@0 181 #define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt)
michael@0 182 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set)
michael@0 183 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt)
michael@0 184 #define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout)
michael@0 185 #define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd)
michael@0 186 #define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt)
michael@0 187 #define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds)
michael@0 188 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size)
michael@0 189
michael@0 190 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32
michael@0 191
michael@0 192 struct _MDCPU {
michael@0 193 struct _MDCPU_Unix md_unix;
michael@0 194 };
michael@0 195
michael@0 196 #if !defined(_PR_PTHREADS)
michael@0 197 #define _MD_INIT_LOCKS()
michael@0 198 #endif
michael@0 199
michael@0 200 #define _MD_NEW_LOCK(lock) PR_SUCCESS
michael@0 201 #define _MD_FREE_LOCK(lock)
michael@0 202 #define _MD_LOCK(lock)
michael@0 203 #define _MD_UNLOCK(lock)
michael@0 204 #define _MD_INIT_IO()
michael@0 205 #define _MD_IOQ_LOCK()
michael@0 206 #define _MD_IOQ_UNLOCK()
michael@0 207
michael@0 208 #define _MD_EARLY_INIT _MD_EarlyInit
michael@0 209 #define _MD_FINAL_INIT _PR_UnixInit
michael@0 210 #define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
michael@0 211 #define _MD_INIT_THREAD _MD_InitializeThread
michael@0 212 #define _MD_EXIT_THREAD(thread)
michael@0 213 #define _MD_SUSPEND_THREAD(thread)
michael@0 214 #define _MD_RESUME_THREAD(thread)
michael@0 215 #define _MD_CLEAN_THREAD(_thread)
michael@0 216 #endif /* PTHREADS_USER */
michael@0 217
michael@0 218 #ifdef AIX_RENAME_SELECT
michael@0 219 #define _MD_SELECT select
michael@0 220 #define _MD_POLL poll
michael@0 221 #endif
michael@0 222
michael@0 223 extern void _MD_aix_map_sendfile_error(int err);
michael@0 224
michael@0 225 #endif /* nspr_aix_defs_h___ */

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