nsprpub/pr/include/md/_aix.h@44a2da4a2ab2
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
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/. */
6 #ifndef nspr_aix_defs_h___
7 #define nspr_aix_defs_h___
9 #include <sys/types.h>
10 #if defined(_PR_PTHREADS) || defined(PTHREADS_USER)
11 #include <pthread.h>
12 #endif
14 /*
15 * To pick up fd_set and the poll events.
16 */
17 #include <sys/select.h>
18 #include <sys/poll.h>
20 /*
21 * Internal configuration macros
22 */
24 #define PR_LINKER_ARCH "aix"
25 #define _PR_SI_SYSNAME "AIX"
26 #define _PR_SI_ARCHITECTURE "rs6000"
27 #define PR_DLL_SUFFIX ".so"
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
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
56 /* Timer operations */
57 #if defined(AIX_TIMERS)
58 #define _MD_INTERVAL_INIT()
60 extern PRIntervalTime _MD_AixGetInterval(void);
61 #define _MD_GET_INTERVAL _MD_AixGetInterval
63 extern PRIntervalTime _MD_AixIntervalPerSec(void);
64 #define _MD_INTERVAL_PER_SEC _MD_AixIntervalPerSec
66 #else /* defined(AIX_TIMERS) */
67 #define _MD_INTERVAL_USE_GTOD
68 #endif /* defined(AIX_TIMERS) */
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 */
84 #define USE_SETJMP
86 #include <setjmp.h>
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
92 #define CONTEXT(_th) ((_th)->md.jb)
93 #define SAVE_CONTEXT(_th) _setjmp(CONTEXT(_th))
94 #define GOTO_CONTEXT(_th) _longjmp(CONTEXT(_th), 1)
96 #ifdef PTHREADS_USER
97 #include "_nspr_pthread.h"
98 #else
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
112 #define _MD_SWITCH_CONTEXT(_thread) \
113 if (!setjmp(CONTEXT(_thread))) { \
114 (_thread)->md.errcode = errno; \
115 _PR_Schedule(); \
116 }
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 }
128 /* Machine-dependent (MD) data structures */
130 struct _MDThread {
131 jmp_buf jb;
132 int id;
133 int errcode;
134 };
136 struct _MDThreadStack {
137 PRInt8 notused;
138 };
140 struct _MDLock {
141 PRInt8 notused;
142 };
144 struct _MDSemaphore {
145 PRInt8 notused;
146 };
148 struct _MDCVar {
149 PRInt8 notused;
150 };
152 struct _MDSegment {
153 PRInt8 notused;
154 };
156 /*
157 * md-specific cpu structure field
158 */
159 #define _PR_MD_MAX_OSFD FD_SETSIZE
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 };
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)
190 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32
192 struct _MDCPU {
193 struct _MDCPU_Unix md_unix;
194 };
196 #if !defined(_PR_PTHREADS)
197 #define _MD_INIT_LOCKS()
198 #endif
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()
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 */
218 #ifdef AIX_RENAME_SELECT
219 #define _MD_SELECT select
220 #define _MD_POLL poll
221 #endif
223 extern void _MD_aix_map_sendfile_error(int err);
225 #endif /* nspr_aix_defs_h___ */
